KR200271646Y1 - Door hinge having hydraulic and spring type door closers - Google Patents

Abstract

The present invention is a hinge type including a hydraulic door closer designed to improve the assembly workability and defect rate while the installation angle adjustment of the door is free, and a spring-type door closer designed to facilitate the rigidity reinforcement and assembly of the opening and closing action of the door It relates to a door opening and closing device.

Hinge type door opening and closing device according to the present invention is a hinged door opening and closing device comprising a hydraulic door closer and a spring type door closer installed in a vertical direction between one side of the door and the door frame; A screw-shaped portion is formed on an inner lower wall surface of the door support member of the hydraulic door closer, and a screw-shaped portion fastened to the screw-shaped portion is formed on an outer circumference of the shaft fixing member, and at the center of the shaft fixing member A shaft fixing tool to which the lower fixing part is fixed is formed, and an inner upper wall surface of the door pivot member of the hydraulic door closer is formed with a threaded portion to which a screw part of an outer periphery of the cylinder member is coupled, and the guide on the inner lower wall surface thereof. A screw portion is formed to which the screw portion formed at the outer periphery of the upper end of the member is coupled.

In addition, the spring-type door closer is provided with a separate rigidly reinforced bearing member interposed internally between the door pivot member and the door support member, and the spring is struck inside the door pivot member and the door support member. The elastic force setting unit integrally formed at the lower end of the shaft is formed in a polygonal shape, and a corresponding surface is formed with a lever through hole through which the elastic force adjusting lever penetrates, and a lever engaging groove for engaging the elastic force adjusting lever at a lower side of the door pivot member. Is formed.

Description

Hinge type door opening and closing device {DOOR HINGE HAVING HYDRAULIC AND SPRING TYPE DOOR CLOSERS}

The present invention relates to a hinged door opening and closing device, and more particularly, a hydraulic first hinge and a spring-type second door to automatically close the door and the door to be opened and closed smoothly by hydraulic pressure. It relates to a hinge type door opening and closing device made of a hinge.

Conventionally, at least one or more doors are required for limited access to a partitioned space, and the doors may be coupled to each other through a plurality of door hinges for a wall or a door frame installed on the wall. Rotating is included.

Also, for such a rotating door, a door closer is optionally installed for automatic closing.

Here, in consideration of the fact that the door closer is separately installed in a state in which the rotatable door is rotatably installed by a plurality of hinges, the present applicant in the Patent No. 10-284872 the door comprising a hydraulic door closer and a spring type door closer Hinges were proposed, and Utility Model Registration No. 20-213553 proposed a door hinge including an improved hydraulic door closer and a spring door closer.

In the door hinge, the hydraulic door closer is interposed between the door and the door frame to perform the smooth opening and closing of the door (ie, the door stopper), and the spring door closer accumulates when the door is opened. The door is closed by the elastic resilient force.

According to the hydraulic door closer, the hydraulic oil circulation path between the cylindrical door pivot member comprising a bracket coupled to one side of the door, the cylindrical door support member composed of the bracket coupled to the door frame, the inner surface of the door pivot member While being formed therein is a cylinder member formed with a pressure oil discharge hole for the hydraulic oil circulation at the inner end of the cylinder filled with the hydraulic oil, one end is fixed to the door support member and the outer surface of the shaft formed with a spiral groove, the lower side of the Guide protrusions which are in contact with the helical groove of the shaft is formed at the position, and the lower end is composed of a piston formed with a pressure passage.

The piston is formed in a hollow shape so that the shaft is accommodated, a communication hole for the circulation of the pressure oil is formed on the upper side, the check valve for opening and closing the communication hole in accordance with the opening and closing of the door on the upper side of the communication hole Is provided.

According to the spring-type door closer, a cylindrical door pivot member having a bracket coupled to one side of the door, a cylindrical door support member having a bracket coupled to the door frame, the door pivot member and the door support member The shaft is fixed to the door support member while being extended in the interior thereof, and one end is coupled to the door pivot member while the other end is coupled to the door pivot member and the other end is coupled to the flange of the shaft to automatically restore the door. It consists of a spring that does

Accordingly, the hydraulic door closer is smoothly opened and closed by the circulation of the pressure oil, and when the door is opened more than a certain threshold angle, the door is temporarily stopped by the hydraulic force.

In this case, the spring-type door closer is compressed elastic spring to accumulate the restoring force of the door.

In this state, when an action force for closing the door is applied, the door is closed by the restoring force of the elastic spring provided in the spring-type door closer, and the door is rapidly closed by the hydraulic action of the hydraulic door closer. This will be prevented.

By the way, in the case of the hydraulic door closer of the door hinge disclosed in the above Patent No. 10-284872 and Utility Model Registration No. 20-213553, the door pivot member coupled to the door and the door support member coupled to the door frame are the same vertical axis. In order to smoothly open and close the door only when the angle is properly adjusted, the polygonal fixing groove is formed in the inner bottom of the door pivot member and the bottom outside of the guide member is also considered. Polygon fixing part is formed to adjust the installation angle of the door by the combination of the fixing groove and the fixing part, but in such a prior art, the manufacturing process of the door rotating member and the guide member is not only very cumbersome, but also it is processed in a separate process. If the fixing groove and the fixing part are not processed correctly, the door rotating member and the door supporting member are correctly positioned. As a result, the assembly workability becomes poor and the defect rate increases, and the rigidity of the guide member is not sufficient for the polygonal fixing portion, resulting in damage.

In addition, in the spring-type door closer, the lower end of the door pivot member is uniformly addressed and accommodated inside the upper end of the door support member. In this case, the friction when the door pivot member is rotated according to the opening / closing action of the door. It is disadvantageous because it does not have good stiffness, and the assembling process becomes complicated as the adjusting nut for adjusting the elastic force of the elastic spring that provides the elastic restoring force for the closing of the door is formed separately from the shaft.

Therefore, the present invention has been made in view of the above-described prior art, and in the hydraulic door closer installed for opening and closing of the door, the adjustment of the installation angle of the door is simplified, thereby improving the assembly workability and the defective rate and the spring door. The purpose of the closure is to provide a hinged door opening and closing device that achieves the rigidity of the door opening and closing action and the convenience of assembly work is achieved.

In order to achieve the above object, according to a preferred embodiment of the present invention in a hinged door opening and closing device comprising a hydraulic door closer and a spring type door closer installed in a vertical direction between one side of the door and the door frame; The hydraulic door closer may include a shaft fixing member configured to determine an installation angle of the door by adjusting an angle of a shaft that is communicated between the door pivot member interlocked with opening and closing of the door and the door support member, and the shaft therein. While receiving the piston having a guide protrusion having an inner end in contact with the helical groove of the shaft, the piston guide groove for receiving the outer end of the guide protrusion of the piston is formed at an opposite position while the lower side of the lower side of the door rotating member A guide member having a threaded portion coupled to the threaded portion, and a threaded portion corresponding to the threaded portion of the upper side of the door pivoting member formed on the outer upper end thereof, and having a cylinder member filled therein with the pressure oil therein; The spring-type door closer is interlocked with the opening and closing of the door while the upper side thereof includes a door pivot member having a spring fixing hole, a door support member coupled to the door frame, and between the door pivot member and the door support member. The bearing member of the interfering rotational rigidity reinforcement, one end of which is fastened to the spring fixing hole to provide an automatic restoring force of the door, and a lower end of the elastic force setting part is formed integrally to adjust the elastic force of the elastic spring. The elastic spring is mounted and the flange portion is provided with a hinged door opening and closing device made of a spring shaft formed with an elastic spring fixing hole for fixing the other end of the elastic spring.

According to the present invention, a screw-shaped portion is formed on an inner lower wall surface of the door supporting member of the hydraulic door closer, and a screw-shaped portion fastened to the screw-shaped portion is formed on the outer circumference of the shaft fixing member, In the center is formed a shaft fixture for fixing the lower end of the shaft.

In addition, a threaded portion is formed on the inner upper wall surface of the door pivot member of the hydraulic door closer to engage the threaded portion of the outer periphery of the cylinder member, and on the inner lower wall surface is a screw shape formed on the upper outer edge of the guide member. The threaded portion to which the part is coupled is formed.

An upper end of the piston is formed with a pressure-through passage and a check valve part formed by a steel ball, and an oil-pressure circulation hole is formed inside the upper end of the cylinder member, and the guide protrusion of the piston has a constant depth inside the guide member. The piston guide groove is formed to guide the outer end.

According to the present invention, the elastic force setting unit integrally formed at the lower end of the spring shaft of the spring type door closer is formed in a polygon, and a corresponding surface is formed with a lever through hole through which the elastic force adjusting lever penetrates, and a lower end of the door pivot member. In the opposite position, a lever engaging groove is formed to catch the elastic force control lever.

In the hinge type door opening and closing device according to the present invention of the above configuration, in the case of the hydraulic door closer by screwing the shaft fixing member for fixing the fixing portion of the shaft to the door support member, the adjustment of the installation angle of the door is smooth, In the spring type door closer, the elastic force setting part is integrally formed at the bottom of the spring shaft and a separate rigidly reinforced bearing member is interposed internally between the door pivot member and the door support member to provide rigidity against opening and closing rotation of the door. This is guaranteed.

1 is an exploded view of a hydraulic door closer constituting a hinged door opening and closing device according to a preferred embodiment of the present invention,

2 is an assembled cross-sectional view of the hydraulic door closer shown in FIG.

3 is an exploded view of a spring-type door closer constituting a hinged door opening and closing device according to a preferred embodiment of the present invention,

4 is an assembled cross-sectional view of the spring-type door closer shown in FIG.

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

10: door pivot member, 20: door support member,

30: shaft, 40: shaft fixing member,

50: piston, 52a: guide protrusion,

56: check valve portion, 60: guide member,

64: piston guide groove, 70: cylinder member,

74: pressure oil circulation hole, 100: door rotation member,

110: door support member, 120: elastic spring,

130: spring shaft, 136: elastic force setting unit.

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

1 is an exploded view of a hydraulic door closer included in a hinged door opening and closing device according to a preferred embodiment of the present invention, Figure 2 is an assembled cross-sectional view of the hydraulic door closer shown in FIG.

Referring to the drawings, the cylindrical door pivot member 10 is provided for opening and closing the door bar, one side of the main body 12 of the door pivot member 10 is coupled to the door coupling bracket (one side of the door ( 14) are integrally formed, and threaded portions 16 and 18 are formed on the lower wall surface and the upper wall surface of the hollow interior.

The cylindrical door support member, denoted as 20, is coupled to the door frame to support the rotation of the door coupled to the door pivot member 10, and the door is provided on one side of the main body 22 of the door support member 20. The door frame coupling bracket 24 coupled to the frame is integrally formed, and the threaded portion 26 is formed on the lower wall of the hollow.

The shaft 30 is formed with a spiral groove 32 on the outer side thereof, and a fixing portion 34 on which the opposite side is tapered on the opposite side thereof.

Preferably, the shaft fixing member 40 is provided with respect to the fixing part 34 of the shaft 30, and a shaft fixing tool having a shape corresponding to the fixing part 34 is formed at the center of the shaft fixing member 40. 42 is formed, and a fixing screw portion 44 coupled to the screw portion 26 formed on the lower inner wall of the main body 22 of the door support member 20 is formed on the outer periphery thereof.

According to the present invention, the door support member 20 is fixed to the screw-shaped portion 26 of the door support member 20 by appropriately adjusting the coupling direction of the shaft fixing member 40 and then fixing the door by the adhesive. It is possible to adjust the angle of the door pivot member 10 with respect to.

The piston 50 is provided with a guide protrusion 52 which is in contact with the spiral groove 32 of the shaft 30 in the lower opposing position while the inside thereof is formed in a hollow shape so as to accommodate the shaft 30, A plurality of O-rings 54a and 54b are installed on the flange 54 defined above the middle thereof, and a check valve portion 56 for opening and closing the pressure oil is installed inside the upper end thereof.

The check valve portion 56 is a ball-shaped steel ball for opening and closing a flow of pressure oil passing through the pressure oil passing hole 56a formed in the upper side of the piston 50 and the pressure oil passing hole 56b. 56b.

Here, the check valve unit 56 may be applied to the structure shown in the Utility Model Registration No. 20-213553.

The guide member denoted by 60 is formed in a cylindrical shape to secure sufficient rigidity, and has a screw-shaped portion 62 corresponding to the screw-shaped portion 16 formed on the lower inner wall surface of the door pivot member 10 on the outer circumference of the upper end thereof. Is formed, a piston guide groove 64 is formed on the inner wall surface of the guide protrusion 52 formed at the lower end of the piston 50 at a predetermined depth from an upper end thereof, and preferably the piston guide groove ( 64, a generally U-shaped guide frame 66 is inserted in order to reduce adverse effects due to friction during the lifting and lowering action of the piston 50.

The cylinder member denoted by 70 is provided with a pressure oil inlet 70a for circulating oil flow in the opposite position at the lower end thereof, and a threaded portion formed on the inner inner wall of the upper side of the door pivot member 10 on the upper outer side thereof. A screw portion 72 coupled to 18 is formed, and a pressure oil circulation hole 74 for circulating pressure oil is drilled at a predetermined position at the upper end of the hollow, and the pressure oil circulation hole (c) is formed at the upper end of the cylinder member 70. An adjustment screw fastener 78 is formed to which the flow adjustment screw 76 for adjusting the flow rate through 74 is coupled.

The bearing member denoted by 80 is the door pivot member 10 which rotates in accordance with the opening and closing of the door while the door pivot member 10 and the door support member 20 are assembled in the form shown in FIG. To alleviate friction.

Figure 3 is an exploded view of the spring-type door closer constituting the hinged door opening and closing device according to a preferred embodiment of the present invention, Figure 4 is an assembled cross-sectional view of the spring-type door closer shown in FIG.

Referring to the drawings, at one side of the cylindrical door pivot member 100 is provided with a door coupling bracket 102 coupled to one side of the door, the predetermined position of the outer circumference of the pivot support bearing 104 of the upper center through the center portion is Shaft fixing hole 106 for fixing the spring shaft to be described later is laid.

One side of the cylindrical door support member indicated by 110 is provided with a door frame coupling bracket 112 coupled to the door frame, the lower end for preventing free rotation of the elastic force control lever 114 for adjusting the elastic force of the elastic spring The lever engaging grooves 116 are formed to face each other, and a shaft receiving jaw 118 for accommodating a spring shaft to be described later is formed at a predetermined position therein.

An elastic spring denoted by 120 is compressed when the door is opened to accumulate an elastic force for the automatic closing of the door, and one end 122 is coupled to a spring fixing hole 106 formed in the door pivot member 100. .

The spring shaft indicated by 130 is the elastic spring 120 is accommodated in the outer circumference of the spring housing 132 defined in the middle, the bearing flange 134 defining the lower end of the spring housing 132 is the elastic A spring fixing hole 134a to which the other end 124 of the spring 120 is fixed is formed. In addition, the polygonal elastic force setting unit 136 integrally formed at the lower end of the spring shaft 130 is provided with a lever through hole 136a through which the elastic force adjusting lever 114 can be penetrated. A fixing screw hole 138 to which the shaft fixing screw 108 is fastened through the shaft fixing hole 104 of the door pivot member 100 is formed at the upper end of the small diameter of the spring shaft 130. O-ring 140 having a bearing function to mitigate frictional force during compression of the elastic spring 120 is installed on the outer side of the small diameter top of the shaft 130.

In addition, the cylindrical bearing 150 is internally interposed between the door pivot member 100 and the door support member 110, the lower end of the door pivot member in the Utility Model Registration No. 20-213553 In the structure that is fastened to the door support member is integrally formed at the time of manufacturing the door pivot member, it is difficult to secure a sufficient rigidity, but in the present invention is sufficient as the cylindrical bearing 150 is assumed as a separate component Rigid treatment is possible.

In addition, the bearing member denoted by 160 has the same function as the bearing member 80 included in the hydraulic door closer.

Therefore, when the hydraulic door closer is assembled in the form shown in FIG. 2 and the spring door closer is assembled in the form shown in FIG. 4, the hydraulic door closer is formed in the door support member 20. After the shaft fixing member 40 is fastened to the screw portion 26, the fixing part 34 of the shaft 30 is coupled to the shaft fixing member 40, and in this state, the door rotating member ( 10) by adjusting the angle of the door support member 20 and the shaft fixing member 40 to be bonded, it is possible to adjust the angle for smooth opening and closing of the door.

In addition, the shaft 30 and the piston 50 including the check valve portion 56 in the form shown in FIG. 2 inside the door pivot member 10 and the door support member 20, When the guide member 60 and the cylinder 70 are assembled, the door pivot member 10 rotates when the door is opened.

In conjunction with the piston 50, the outer end of the guide protrusion 52 is guided to the piston guide groove 64 of the guide member 60, the inner end of the guide protrusion 52 is the shaft 30 The steel ball 56b, for example, descends along the spiral groove 32 of the piston 50, and thus the hydraulic oil passes through the hydraulic oil passage hole 56a constituting the check valve portion 56. While flowing to the cylinder 70, the pressure oil in the cylinder 70 is circulated through the pressure oil circulation hole 74 at a flow rate regulated by the pressure oil adjustment screw 76.

When the door is opened, when the door pivot member 100 of the spring type door closer is also rotated, the elastic spring 120 has one end 122 fixed to the door pivot member 100 while the other end is As it is fixed to the fixed spring shaft 130, it is compressed to accumulate elastic force, and during such compression, friction with the spring shaft 130 is prevented by the O-ring 140.

In this state, when the access force is made through the door to release the door, the elastic spring 130 is decompressed and the door is automatically closed by the elastic restoring force of the elastic spring 130. When the door is closed, it is prevented from being suddenly closed by the hydraulic action of the hydraulic door closer.

Here, the hydraulic door closer is set appropriate hydraulic pressure by the flow adjustment screw 76, the spring-type door closer is a lever through hole of the elastic force setting unit 136 integrally formed at the bottom of the spring shaft 130 When the elastic force adjustment lever 114 is penetrated to the lever through hole at an appropriate position in the 136a to be caught by the lever catching groove 116 formed at the lower end of the door support member 110, Adjustment is possible.

As described above, according to the hinge type door opening and closing device according to the present invention, the hydraulic door closer constituting the door opening and closing device is easier to adjust the angle of the door rotating member and the door supporting member than the conventional technology, so that the door As the defective rate regarding the opening and closing of is remarkably improved, the structure is also considerably simplified.

In addition, in the spring-type door closer constituting the door opening and closing device, as the elastic force setting portion for forming the elastic force of the elastic spring is integrally formed at the lower end of the spring shaft, the assembly process is remarkably improved, and the door pivot member and the door support are The use of a separate rigid bearing member for the member ensures sufficient rigidity even for frequent opening and closing of the door.

Claims (5)

In the hinged door opening and closing device comprising a hydraulic door closer and a spring door closer installed in a vertical direction between one side of the door and the door frame, The hydraulic door closer may include a shaft fixing member configured to determine an installation angle of the door by adjusting an angle of a shaft that is communicated between the door pivot member interlocked with opening and closing of the door and the door support member, and the shaft therein. While being received, the lower end is formed with a guide protrusion in which the inner end is folded in the spiral groove of the shaft, and at the outside, a piston equipped with a plurality of O-rings, and a piston guide groove in which the outer end of the guide protrusion of the piston is received from the upper end. A cylindrical guide member having a threaded portion coupled to a lower threaded portion of the door rotating member while being formed at an opposite position with a predetermined depth, and corresponding to a threaded portion of an inner upper side of the door rotating member at an outer upper end thereof; A threaded portion is formed and a cylinder member filled therein with the pressure oil therein; The spring-type door closer is interlocked with the opening and closing of the door while the upper side thereof includes a door pivot member having a spring fixing hole, a door support member coupled to the door frame, and between the door pivot member and the door support member. The bearing member of the interfering rotational rigidity reinforcement, one end of which is fastened to the spring fixing hole to provide an automatic restoring force of the door, and a lower end of the elastic force setting part is formed integrally to adjust the elastic force of the elastic spring. The hinge spring door opening and closing device is characterized in that the elastic spring is mounted and the flange portion is formed of a spring shaft formed with an elastic spring fixing hole is fixed to the other end of the elastic spring. 2. The screw fixing portion is formed on an inner lower wall of the door support member of the hydraulic door closer, and a screw portion is formed on the outer circumference of the shaft fixing member to be screwed to the screw portion. The hinge type door opening and closing device, characterized in that the shaft fixing tool is formed in the center of the lower fixed part of the shaft is fixed. According to claim 1, wherein the inner upper wall surface of the door rotation member of the hydraulic door closer is formed with a threaded portion is coupled to the threaded portion of the outer peripheral of the cylinder member, and the inner lower wall surface of the upper outer peripheral edge of the guide member The hinge-type door opening and closing device, characterized in that the screw-shaped portion is formed is coupled to the screw-shaped portion formed in. According to claim 1, wherein the upper side of the piston is formed through a pressure-passing through hole and a steel ball check valve, a pressure oil circulation hole is formed in the upper end of the cylinder member, the inside of the guide member to a constant depth from the upper end Hinge-type door opening and closing device characterized in that the piston guide groove is formed to guide the outer end of the guide projection of the piston. The method of claim 1, wherein the elastic force setting unit integrally formed at the lower end of the spring shaft of the spring-type door closer is formed in a polygon and a corresponding surface is formed with a lever through hole through which the elastic force control lever penetrates, the door pivot member Hinged door opening and closing device characterized in that the lever engaging groove is formed in the lower opposite position of the elastic force control lever.