KR200368537Y1 - Inner type door open and close damper using connecting-arm - Google Patents

Abstract

The present invention relates to a built-in door opening and closing shock absorber using a connecting arm.

The present invention is a door opening and closing device that the door frame and the door frame is connected through the hinge pin of the fixed and movable hinge plate to rotate the door frame in the door frame to open and close the door, it is embedded on one side of the upper surface of the door frame A housing in which a central axis having a spring elastic return force and a hydraulic buffer force protrudes a predetermined width by a hydraulic buffer means provided therein when rotating upwardly; One end is integrally keyed to the upper end of the central shaft and the other end is provided with a roller that slides in one direction inside the door frame to generate an elastic return force and hydraulic buffer force on the central axis when the door frame is rotated open It characterized in that it comprises a.

Description

Built-in door open / close shock absorber using connecting arm {INNER TYPE DOOR OPEN AND CLOSE DAMPER USING CONNECTING-ARM}

The present invention relates to a built-in door opening and closing shock absorber using a connecting arm, and more particularly, to provide a known hydraulic buffer means inside the door frame that is hinged to the door frame to be rotatable and the elastic return force in the hydraulic buffer means It relates to a built-in door opening and closing shock absorber using a connecting arm that is connected to the connecting arm that slides in the door frame to perform the automatic closing function on the door by the buffer force of the central axis when the door opening and closing.

Typically, doors for opening and closing are installed at entrances to apartment buildings, and the doors are hinged to one side of the door frame to rotate.

And, the hinge or the upper side and the bottom of the door is provided with a shock absorbing means that has a cushioning force when opening and closing the door and performs the automatic closing function, which prevents a safety accident due to sudden opening and closing of the door by maintaining an appropriate opening and closing speed In addition, it has a function of automatically closing the door after the door is opened.

As one example, the known hydraulic shock absorbing means provided in the door hinge lifts and lowers the lower piston by screwing as the central axis of the housing provided in the door hinge rotates when the door frame is rotated. At the same time, the hydraulic force is provided through the flow path, and at the same time, when the external force applied to the door is removed, the spring has a restoring force and the piston moves downward. At this time, the central axis is rotated by the piston to provide hydraulic pressure and return the door. The hydraulic pressure and the restoring force is to perform the closing operation slowly.

The cushioning means has a problem that a bulky or theft fear occurs when the exterior is provided as a pipe-shaped housing and provided to the hinge portion of the door. There has been a problem that the exposure or the aesthetics of theft are not beautiful.

The present invention is devised to solve the above problems, an object of the present invention is to provide a shock absorbing means on the upper inner side of the door frame for opening and closing the doorway and the shock absorbing means is positioned on the door frame through the connecting arm In order to be able to provide a cushioning force to the door as well as to have a beautiful appearance.

1 is a plan view of the operating state of the built-in door opening and closing shock absorber using a connecting arm according to the present invention,

FIG. 2 is a longitudinal sectional view of the "B-B" line in FIG. 1;

3 is a sectional view taken along the line "C-C" in FIG.

<Explanation of symbols for the main parts of the drawings>

100: door frame

120: guide beam 122: slide groove

200: door frame

240: open section

300: hydraulic shock absorber

390: bracket

400: housing

420: central axis 422: polygon

500: connecting arm

510: diversified key 520: roller

530: hinge bar 540: bearing

In order to achieve the above object, the present invention, the door frame and the door frame in the door opening and closing shock-absorbing device is connected through the hinge pin of the fixed and movable hinge plate to open and close the door frame in the door frame, the door A housing built in one side of the upper surface of the frame, the central shaft having a spring elastic return force and a hydraulic buffering force protruded a predetermined width by hydraulic buffering means provided therein when rotating upward; One end is integrally keyed to the upper end of the central axis and the other end is provided with a roller that slides in one direction inside the door frame, including a connecting arm for generating an elastic return force on the central axis when the door frame is rotated open; Characterized in that configured.

Here, the door frame and the door frame to maintain a minimum separation gap, it is preferable to form a predetermined opening section so that the connecting arm can be guided in and out of the upper side of the door frame so that the door frame can be rotated. will be.

In addition, it is preferable that the hinge bar is protruded at the end of the connecting arm, the roller is bearing-coupled to the hinge bar, and the roller guide guide beam is inserted into the ceiling surface of the door frame in which the roller slides. .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 to 3, the present invention, the door frame 100 and the door frame 200 is connected through a hinge pin of the fixed and movable hinge plate, so that the door frame 200 in the door frame 100 It is applied to a conventional door that rotates and opens and closes the entrance and exit, the central axis 420 having an elastic return force by the hydraulic shock absorbing means 300 is provided on one side of the upper surface of the door frame 200 and provided therein. ) Door is provided with a housing 400 having a predetermined width, and a roller 520 having one end integrally coupled to an upper end of the central shaft 420 and the other end sliding inside the door frame 100. It comprises a connecting arm 500 that generates an elastic return force on the central axis 420 when the frame 200 is rotated and opened.

The door frame 100 is provided at the inner edge of the doorway of the building and is usually installed together with the formwork. On the ceiling surface of the door frame 100, a guide groove which is opened downward by bending and welding is formed, and the guide beam 120 made of aluminum material and having the slide groove 122 which is opened downward is formed in the guide groove. It is fixedly integrated in one piece.

The door frame 200 has the same structure as the known structure, and protruded ends extending from the front and rear surface plates are formed on the upper side thereof so that the door frame 200 is not exposed to the outside when the bracket 390 of the housing 400 is coupled. In addition, a predetermined opening section 240 is formed at the protruding end of one side, and is exposed when the door frame 200 is rotated by the connection arm 500 connecting the door frame 100 and the door frame 200. This will guide you.

The connecting arm 500 has a predetermined length, and a polygonal key 510 is coupled to one end of the connecting arm 500 so as to be fitted into a polygonal portion 422 provided at an upper end of the central axis 420 of the housing 400. A solid hinge bar 530 protrudes from the other end, and the roller 520 is rotatably coupled to the hinge bar 530 through the bearing 540, and the roller 520 is the guide beam 120. It is inserted into the slide groove 122 of the slide to move.

The slide groove 122 is formed at the bottom of the separation prevention end is bent to prevent the separation of the roller 520.

The hydraulic shock absorbing means 300 includes a known means having a spring elastic restoring force and a hydraulic force when the central axis 420 constituting the center rotates.

With reference to the accompanying drawings, the built-in door opening and closing shock absorber using the connecting arm configured as described above will be described the assembly and operation state.

At the time of assembly, the guide beam 120 is coupled to the ceiling surface of the door frame 100 as shown in FIG. 1 or 2, and the hydraulic shock absorbing unit 300 is continuously provided above the door frame 200. The housing 400 is coupled, but the central axis 420 of the housing 400 is exposed to a predetermined width upward. Then, the polygonal key 510 provided at one end of the connecting arm 500 is fitted to the upper polygonal portion 422 of the central axis 420, and the roller provided at the other end of the connecting arm 500. When the 520 is coupled to the slide groove 122 formed in the guide beam 120 on the door frame side, the assembly is completed.

Subsequently, when an accessor opens the door frame 200 as shown in FIG. 1, the door frame 200 is rotated about one hinge, and one end is connected to the central axis 420 of the door frame 200. The other end roller 520 of the connecting arm 500 takes a form in which the roller 122 slides in a locked state to the slide groove 122 on the side of the door frame 100, so that the polygonal key 510 of the connecting arm 500 The central shaft 420 is rotated and the central shaft 420 is rotated by the hydraulic shock absorbing means 300 having the spring elastic return force and the hydraulic shock absorbing force therein, and at the same time the roller 520 of the connecting arm 500. ) Is moved along the slide groove 122. Subsequently, when the external force applied thereto is removed while the door frame 200 is opened, the central axis 420 is rotated by the spring elastic return force of the hydraulic shock absorbing means 300 to rotate the door frame 200. This initial state is rotated at this time, the buffer force is generated by the hydraulic buffer means 300 is to close the door frame 200 slowly.

Figure 2 shows a preferred embodiment of the hydraulic shock absorbing means according to the present invention, the hydraulic shock absorbing means 300 is a hydraulic screw means 300 is a ring screw groove formed on the upper inner circumferential surface and a predetermined length from the ring screw groove A housing 400 having a guide rail formed downward and a cap screw groove formed at a lower end of the inner circumferential surface and coupled to the door frame 200 through a bracket 390, and a polygonal portion 422 formed at an upper end thereof are formed. An extended collar 423 is formed at the lower end of the 422, a circular rod 424 is formed at the lower end of the collar 423, and a threaded portion 425 is formed at the lower end of the circular rod 424. A central shaft 420 embedded in the 400 and a threaded portion are formed to be screwed into the housing 400 at the lower side of the outer circumferential surface thereof, and are coupled to the housing 400 and the central shaft 420 at the inner and outer sides to maintain airtightness. O-Ring Texture to Combine O-Rings An upper ring 310 having a groove formed therein and a ball bearing 314 installed under the collar 423 to attenuate rotational friction between the central axis 420 and the housing 400 and the housing 400 The lower ring 318 coupled to the screw groove of the), the spring 330 inserted below the lower ring 318 of the housing 400, and supports the lower end of the spring 330 and the housing 400 A ring-shaped member having an outer guide protrusion formed on the outer circumferential surface and an inner guide protrusion formed on the inner circumferential surface to be coupled to the guide rail of the slider 340 that is interlocked when the housing 400 rotates, and the inner guide protrusion of the slider 340. Slider guide groove is inserted into the small diameter portion formed on the outer circumferential surface and the large diameter portion formed on the lower end of the small diameter portion and the small diameter portion is installed on the upper end of the central shaft coupling is coupled to the screw portion 425 of the central axis 420 The outer circumference of the part and the large neck part Piston 350 having a hydraulic oil groove formed in a predetermined section in the vertical direction to the inside, and the check valve 360 is installed inside the piston 350, to block the back flow of the hydraulic oil, and installed on the outer peripheral surface of the piston 350 And a cylinder 370 having a lower inner diameter than an upper inner diameter so as to contact the inner circumferential surface of the housing 400 and increase the flow of the working oil through the working oil groove when the piston 350 descends, and the piston 350. And a cap 380 supporting the cylinder 370 and coupled to a cap screw groove at the bottom of the housing 400 and having a filter in a flow path provided at the center thereof, and a bolt coupled to an upper surface of the door frame 200. The flow path is communicated with the bracket 390 to which the 400 is coupled and the flow path provided in the cap 380 flows into the upper side of the housing 400 and the upper side of the piston 350. The bracket (39) It is made of a hydraulic adjustment screw 600 to be screwed through the 0) to adjust the flow passage to the upper side of the piston 350.

Hydraulic shock absorbing means 300 is configured as described above, is installed in the housing 400 is coupled to the upper surface of the door frame 200 through the bracket 390, the upper end of the central axis 420 of the housing 400 The central axis 420 when the connection arm 500 rotates according to the rotation of the door frame 200 in a state where the polygonal portion 422 is fitted with the polygonal key 510 at one end of the connection arm 500 to be integrally coupled. ) Rotates, and the screw 425 of the central shaft 420 is rotated to compress the spring 330 by pulling the piston 350, at the same time the oil is moved through the flow path. After the external force applied to the door frame 200 is removed, the restoring force is generated in the spring 330, and the spring 330 lowers the piston 350 to screw the central shaft 420 by the piston 350. The rotating arm rotates the connecting arm 500. The connecting arm 500 is slid through the roller 520 in the slide groove 122 of the door frame 100, and thus the closing force in the door frame 200. To provide a cushioning force so that the door frame 200 is slowly closed while the oil moves through the flow path.

As described above, the built-in door opening and closing shock absorber using the connecting arm according to an embodiment of the present invention, the door frame and the door frame when the door is opened and closed through a known hinge pin and the spring elastic return force to the door frame separately Since the housing having the hydraulic shock absorbing force is embedded in the door frame in a state connected through the door frame and the connecting arm through the central axis, the hydraulic shock absorbing force is provided at the time of opening and closing of the door, and the appearance is beautiful.

Claims (4)

The door frame 100 and the door frame 200 is connected through a hinge pin of the fixed and movable hinge plate, the door frame 200 in the door frame 100 rotates to open and close the door opening and closing device , The housing is built in one side of the upper surface of the door frame 200, the central shaft 420 having a spring elastic return force and the hydraulic buffering force by a hydraulic buffer means 300 provided therein when the upper side of the door frame 200 is rotated to a predetermined width ( 400); One end is integrally keyed to the upper end of the central axis 420, and the other end is provided with a roller 520 that slides in one direction inside the door frame 100, the central axis at the time of rotation opening of the door frame 200 Built-in door opening and closing shock absorber using a connection arm, characterized in that it comprises a; 420, the connecting arm 500 for generating an elastic return force. The method of claim 1, The connection arm 500 guides the entrance and exit of the door frame 100 and the door frame 200 at a top side of the door frame 200 so that the door frame 200 can be rotated. Built-in door opening and closing shock absorber using a connecting arm, characterized in that to form a predetermined opening section 240 to be. The method according to claim 1 or 2, The hinge bar 530 protrudes from the end of the connecting arm 500, and the roller 520 is coupled to the hinge bar 530 so that the bearing 540 is coupled to the door 510. Built-in door opening and closing shock absorber using a connecting arm, characterized in that by inserting the roller guide guide beam 120 is inserted into the ceiling surface. According to claim 1, wherein the hydraulic shock absorbing means 300 A housing 400 having a ring screw groove formed on an inner circumferential surface, a guide rail formed downward from the ring screw groove by a predetermined length, and a cap screw groove formed on a lower end of the inner circumferential surface, and embedded in an upper one side of the door frame 200. ); A polygonal portion 422 is formed at an upper end, a collar 423 is formed at the lower end of the polygonal portion 422, a circular rod 424 is formed at a lower end of the collar 423, and the circular rod 424 is formed. A screw shaft 425 is formed at a lower end of the central shaft 420 embedded in the housing 400; An upper ring 310 having an O-ring coupling groove having an O-ring formed at a lower portion of the outer circumferential surface thereof so as to be screwed into the housing 400 and coupled to the housing 400 and the central shaft 420 at an inner and outer side to maintain airtightness ); A lower ring 318 installed below the collar 423 to support a ball bearing 314 that attenuates rotational friction between the central axis 420 and the housing 400 and coupled to a screw groove of the housing 400. ); A spring 330 inserted below the lower ring 318 of the housing 400; Supporting the lower end of the spring 330, and is a ring-shaped member having an outer guide protrusion formed on the outer peripheral surface to be coupled to the guide rail of the housing 400, and an inner guide protrusion formed on the inner peripheral surface, the rotation of the housing 400 A slider 340 interlocked with each other; A slider guide groove into which the inner guide protrusion of the slider 340 is inserted is formed on an outer circumferential surface, a large diameter portion extending from a lower end of the small diameter portion, and installed on an upper end of the small diameter portion. A piston 350 having a central shaft coupling portion to which the screw portion 425 of the coupling portion is coupled, and a hydraulic oil groove formed on the outer circumferential surface of the large diameter portion in a vertical direction; A check valve 360 installed inside the piston 350 to block back flow of the working oil; A cylinder installed on an outer circumferential surface of the piston 350 to be in contact with an inner circumferential surface of the housing 400 and having a larger inner diameter than a lower inner diameter so as to increase the flow of hydraulic fluid through a hydraulic oil groove when the piston 350 descends ( 370); A cap 380 supporting the piston 350 and the cylinder 370, coupled to a cap screw groove at a lower end of the housing 400, and having a filter in a channel provided at a center thereof; And A bracket 390 that is bolt-coupled to an upper surface of the door frame and to which the housing 400 is coupled; The flow path provided in the cap 380 communicates with the flow path so as to flow into the upper side of the housing 400 and the upper side of the piston 350, and passes the bracket 390 through the upper open end screw groove of the flow path. Built-in door opening and closing shock absorber using a connection arm comprising a; hydraulic adjustment screw (600) which is screwed to adjust the flow passage to the piston 350 to the upper side.