KR200165472Y1 - Hydraulic hinge - Google Patents

Abstract

The invention is directed to a hydraulically actuated hydraulic hinge. Conventional hydraulically actuated damping hinges have a device element that converts the mutual rotational movement of the hinge leaf into a linear reciprocating motion parallel to the central axis of the hinge and connects a hydraulic cylinder to the reciprocating motion of the piston inside the cylinder. Thus, the oil filled in the cylinder is compressed, and the compressed oil is gradually moved along the flow path along the flow path installed outside the cylinder.

This structure is a reasonable structure in operation principle, but there is no problem, but there are a lot of additional device elements constituting it, a lot of work is carried out and a mechanical friction part is formed, which also affects the life of the device according to long-term use.

Therefore, the present invention provides a structure in which individual functions are integrated to reduce the number of device elements. That is, the rotation-linear motion conversion device and the hydraulic cylinder piston are composed in one piece, and the oil flow path of the hydraulic device is formed inside the piston to provide a simple structure as a whole.

According to the structure of the present invention, an independent piston is installed in a cylindrical cylinder composed of a fixed side wing plate of a hinge and a single body, which forms a spiral cam at upper and lower ends, respectively, and forms a flow path along a central axis line. On the other hand, the rotating shaft consisting of the rotating side wing plate of the hinge and a single body is formed in two places up and down and are coupled to the cylinder up and down, respectively. At the end of the upper and lower rotation shafts facing the piston of the cylinder, a spiral cam corresponding to the piston's spiral cam is formed, respectively. When both wing plates of the hinge are folded, the cam of the upper rotation shaft and the upper cam of the piston are engaged, and the cam of the lower rotation shaft The lower cam of the piston is installed to be offset by a certain distance, and the space is filled to fill the oil. When the hinged wing plate of the hinge rotates, the upper shaft cam pushes the piston upper cam to generate a space, and the lower shaft cam rotates. The first oil space is reduced by mating with the lower cam of the piston which is pushed down, and the oil moves slowly along the flow path to prevent the door from closing suddenly. Significantly reduce, material savings and implementation costs and equipment dynamics The efficiency will have an effect that can be improved.

Description

Hydraulically actuated cushioning hinge

The present invention relates to a general hinge (BUTT HINGE) that opens and closes the door, and has a function to make the door open and close at a constant speed by installing a hydraulic device, and is generally referred to as a hydraulically actuated buffering hinge. It is usually a form with an automatic closing function.

Looking at the conventional technical design in general, as illustrated in Figure 4, in the conventional hydraulic actuating hinge, in winry view, the rotational movement of the hydraulic cylinder portion and the hinge blades are built parallel to the support shaft It is usually composed of a rotational-linear motion conversion device portion that converts into one linear reciprocating motion.

In the hydraulically actuated shock absorbing hinge having such a structure, first, the one side fixed side wing plate 46a of the hinge is screwed to the fixed frame body of the door, and the door is fixed to the other side rotation side wing plate 46. In accordance with the opening and closing of the door, the cylindrical female screw 44 integrated in the rotational side wing plate 46 is interlocked to rotate. At this time, the engaged piston drive male screw 45 has to be rotated, but is converted into a linear motion by a guide part built in the rotation stopping hole 47 to perform a vertical motion. The piston 43 jointly connected to the male screw 45 having the linear motion is interlocked to reciprocate to compress the oil in the cylinder 42 to form an appropriate flow path, thereby forming resistance in the duct to move at a constant speed. (See FIG. 3).

Such a structure is not only easy to install the hydraulic cylinder on the support shaft, but also has a tendency to decrease efficiency in the fear of abrasion loss and the actual assembling method of the motion converter having mechanical wear characteristics. There is a tendency.

In addition, the structure of the conventional hydraulically actuated shock absorbing hinge is not only to be installed by the rotation-linear motion converter unit 44, 45 and the hydraulic cylinder parts 41, 42, 43, but also the two wing plates of the hinge ( Fixed support shafts 48 which mesh 46) 46a with each other should be additionally laid.

Therefore, a large number of relative device elements could cause problems such as increase in man-hours, difficulty in work, and inefficiency in production. In addition, direct mechanical frictional areas 44 and 45 inevitably occur, which requires consideration of the life of the mechanical element for long-term frequent rotational movements.

Therefore, the purpose of the present invention is to simplify the structure to reduce the implementation cost as well as to improve the mechanical efficiency of the hinge movement more.

In order to achieve the object of the present invention boldly integrates the rotation-linear motion conversion device element, and devised a hydraulic cylinder to interlock with the rotational motion as illustrated in the structure of the general hinge (Fig. 4) Corresponding structure provides a feature of the structure constructed by dividing the rotating support shaft of the general hinge by three minutes.

In other words, a cylindrical knuckle, which is connected to the fixed side wing piece of the hinge, is cylindrically polished to the inside of the hydraulic cylinder outer cylinder and the hydraulic cylinder piston is coupled thereto to simplify the hydraulic unit.

Meanwhile, both wing plates of the hinge are axially coupled by inserting a coupling support pin, and a helical cam is directly formed on the coupling support pin to insert and fix a fixed pin integrally with the separate rotating side wing plate by an up and down rotation axis, and between the up and down rotation shafts. A hydraulically actuated damping hinge, characterized in that the piston is formed with a spiral cam, which is a key element of the present invention, which is a key element of the present invention. This is provided.

1 is a cross-sectional view showing a hydraulically actuated buffer hinge according to the present invention

Figure 2a, Figure 2b is showing the hydraulic operation structure of the present invention,

Figure 2a is a perspective view of a piston formed in the upper and lower end of the spiral cam is a feature of the present invention.

Figure 2b is a sectional view of the hydraulic actuator.

3 is a cross-sectional view showing a conventional general hydraulically actuated buffering hinge.

Figure 4 is a cross-sectional view showing a hinge (BUTT HINGE) for the general door.

* Description of the symbols for the main parts of the drawings *

1: Hinge wing plate (fixed side) 1a: Hinge wing plate (rotating side)

2: Protective cap (top) 2a: Protective cap (bottom)

3: Cylindrical stage knuckle (top) 3a: Cylindrical stage knuckle (bottom)

4: support ring (upper) 4a: support ring (lower)

5: cylindrical knuckle (cylinder)

6: rotating shaft (upper) 6a: rotating shaft (lower)

7: piston with spiral cam

8: piston guide member

9, 9a: oil ring 10, 10a: retaining pin

Hereinafter, the structure of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the configuration of the hydraulic actuating hinge according to the present invention, the hydraulic actuating damping hinge is parallel to the central axis on the outer circumferential surface of the cylindrical long knuckle 5 of one side of the hinge as in the general hinge It is fixed in one piece (high frequency welding, etc.) to form a fixed wing plate (1) for fixing the screw to the fixing frame such as doors, and another cylindrical knuckle at the upper end and the lower end of the other wing plate (1a) of the hinge (3) (3a) is fixed side by side with the central axis to form a rotation wing plate (1a) to be fixed to the door frame by screws. The inner side of the cylindrical long knuckle 5 is cylindrically polished to correspond to the piston movement.

On the other hand, the center support pin for joining the two wing plates is separated into upper and lower parts (6) (6a), unlike the support pin of the general hinge, inserted into the cylindrical knuckle (knuckle), respectively, both wing plates (1) (1a) ). The support pins are respectively referred to as the upper rotary shaft 6 and the lower rotary shaft 6a, and the spiral cams, which are features of the present invention, are formed on the rotary shafts, respectively, and are installed to face each other in the shape illustrated in FIG.

The piston 7 of the hydraulic cylinder is installed independently between the rotary shaft (6) (6a), the spiral cam of the core element of the present invention is the spiral of the upper and lower rotary shaft (6) (6a) to the piston (7) The flow path adjusting needle is formed in the upper and lower portions of the piston 7 so as to be engaged with the cam, and forms a through hole 11, which is a flow path through which oil can move on the central axis of the piston 7, and is perpendicular to the central axis. It is provided in a structure with threaded holes for engaging the valve.

In addition, the guide groove 12 for guiding the up and down linear movement of the piston 7 is formed in the longitudinal direction along the central axis on the outer peripheral surface of the piston 7 is a projection (8) as a guide member in the guide groove 12 Is coupled to the cam to operate the rotational motion of the rotary shaft (6) (6a) is a structure that is converted into a vertical linear motion.

This spiral cam inserts the piston 7 formed at the upper and lower ends into a cylindrical knuckle 5 serving as a cylinder, and the threading process in which the guide member protrusion 8 is formed at the cylindrical long knuckle 5. It provides a structure that is coupled to the guide groove 12 of the piston (7) through the formed hole.

The cam coupling of the piston 7 is positioned so that the upper rotary shaft 6 is inserted in the upper part of the piston 7 with the central axis, so that the spiral cam of the upper rotary shaft 6 is completely engaged with the upper spiral cam of the piston 7. The lower rotary shaft 6a is inserted into the lower portion of the piston 7 so as to be spaced apart from the lower spiral cam of the piston 7 by a predetermined distance.

The supporting ring (4) (4a) and the cylindrical end knuckle (3) (3a) are inserted into the vertical rotation shaft (6) (6a) in the axial direction of the cylinder thus formed and formed perpendicular to the central axis of the upper end knuckle (3). One through hole and the connecting hole 10a of the upper rotating shaft 6 and the through hole and the connecting hole 10 of the lower rotating shaft 6a formed perpendicular to the central axis of the lower end knuckle 3a. The connecting pin is coupled to and fixed to the hinged rotating wing plate (1a) and formed into a single body, both wing plates (1) (1a) are formed to be coupled to each other and the upper and lower protective cap (2) on the center axis ( 2a) is press-fitted to form a hydraulically actuated buffering hinge.

The present invention configured as described above has a piston (7) formed in the upper and lower ends of the spiral cam is inserted into the cylinder (5) formed of a fixed wing plate (1) as a single body and the rotating shaft (6) (6a) This cam engagement is a structure in which oil is filled in the clearance gap generated between the cam of the piston 7 and the cam of the rotary shafts 6 and 6a and the cavity surrounded by the cylinder inner surface.

Meanwhile, the operation principle of the present invention will be described in the order of the hinge movement with reference to FIGS. 2A and 2B.

The upper and lower rotating shafts 6 and 6a having the helical cam are integrated with the rotary vane plate 1a, and when the door is opened and closed, rotational force is directly transmitted to rotate in the cylinder. And the piston (7) cam-coupled to the rotary shaft (6) (6a) is also interlocked by the coupling of the guide groove (8) integrated with the guide groove 12 and the cylinder, the piston is linearly moved up and down.

When the door is closed, both wing plates 1 and 1a of the hinge are also folded. At this time, the state inside the cylinder is as shown in Fig. 1 of FIG. 2B, and the clearance in the circumferential direction inside the cylinder 5 between the vertical surface of the cam of the upper rotary shaft 6 and the vertical surface of the upper cam of the piston 7 -A Is almost zero, and the clearance between the cam of the lower rotary shaft 6a and the lower cam of the piston 7 is maximum, and the inner oil is concentrated in the space of A '.

In the state of the movement in the process of opening the door in the above state, the rotating wing plate (1a) is rotated in the upward direction from the bottom of the figure to the rotation shaft 6, 6a, which is integrated therewith, rotates in the same direction. Done. Accordingly, the cam of the upper rotary shaft 6 rotates to push out the piston 7 engaged with it, while the cam of the lower rotary shaft 6a rotates to give a space where the piston is pushed down. That is, the position of the piston 7 is lowered in the order of d1, d2, d3 as shown in the figure.

In the process of transmitting the force, the rotational force at the time of opening the door is directly distributed to the upper rotational shaft 6 and the lower rotational shaft 6a, and the rotational force transmitted to the upper rotational shaft 6 pushes out the piston 7 which is cam-shaped and is lowered. The rotating force transmitted to the rotating shaft 6a only rotates the cam. The descending kinetic energy of the piston compresses the oil and this compressed oil moves along the flow path 11 to the newly generated space due to the lowering of the piston, play-A (see Fig. 2b in Fig. 2b).

In this way, when the door is completely opened, the inside state of the cylinder is as shown in Fig. 3-b, and the clearance-A is the maximum and the clearance-A 'is almost zero. The inner oil has moved to play-A along the flow path 11.

In forming the flow path, in the present invention, the increase and decrease of the clearance-A and the clearance-A 'generated by the rising and falling of the piston 7 interlocking with the up and down rotation shafts 6 and 6a are the same. By realizing the structure that can connect the play-A and play-A 'through, the cylinder is simplified and the overall structure provides a simple hydraulically actuated damping hinge.

On the other hand, the process when the door is closed is reverse to the above-described process, that is, the operation process when the door is opened.

As described above, the present invention uses a hydraulic cylinder outer cylinder 5 in common with a knuckle of a common hinge, and a piston in the hydraulic cylinder is independently positioned so that caps for both ends of a cylindrical general hydraulic cylinder may be used. A simple structure is formed by acting as the lower rotating shafts 6 and 6a. In addition, by forming the oil flow path directly on the piston rather than being installed outside the cylinder, the structure related to the flow path is also extremely simplified.

Therefore, not only the components of the hydraulically actuated hinges are greatly reduced, but also the formation of the structure is easy, and the mechanical frictional points are dispersed to extend the life of the hinges, and the structure is very simple, which makes the manufacturing process and the assembly process simple and the implementation cost. It will have the effect of reducing the cost.

Claims (2)

Inner cylinders are closed by axially coupling the openings on both sides of the cylinder with upper and lower rotary shafts 6 and 6a integrally formed with the other rotating wing plate 1a in the cylinder 5 formed as a single body with the fixed vane plate 1 on one side. At the same time, while forming a space, both wing plates (1) (1a) to rotate on the axial axis, the upper and lower rotary shafts (6) (6a) to form a spiral cam at the end facing the piston (7), respectively, Both ends are fitted to the piston (7) having a spiral cam formed at a predetermined interval, and the flow path (11) penetrates the piston (7) itself, so that the oil is changed according to the left and right rotation of the rotation shaft (6) 6a. A hydraulically actuated damping hinge characterized in that the opening and closing of the door makes it possible to buffer the opening and closing of the door. The piston (7) in the hydraulic cylinder according to claim 1 is an independent structure, each having a spiral cam formed at the upper and lower ends of the cylindrical piston, and the guide groove (12) corresponding to the stroke distance of the piston in parallel with the central axis on the outer peripheral surface of the piston. And a hole (11) formed in a hole penetrating up and down in the center axis, and a hole (13) for installing a flow path adjusting needle valve in a direction perpendicular to the flow path.