KR200281610Y1 - apparatus for opening and shutting door - Google Patents

Abstract

The present invention relates to a door opening and closing device of a pair of hydraulic and spring hinges, in particular the hydraulic and spring hinge has a simple structure, the hydraulic hinge according to the opening and closing of the door smooth operation without oil clogging and spring hinge Has a rotating shaft, a piston and a piston guide in the housing of the rotating member so that the door does not close suddenly, and has a cylinder with an outlet hole inside the housing of the fixing member so as to have a greater compression tension. A hydraulic hinge mounted on the head to adjust a width of the outflow hole and having an oil circulation path; In the door opening and closing device consisting of a spring-type hinge for closing the door opened by the compression tension by embedding the spring, The hydraulic hinge is oil to form a plurality of support protrusions to communicate the outflow hole and the oil circulation path to the upper surface of the cylinder Having an outlet portion;

The spring-type hinge relates to a door opening and closing device, characterized in that the upper end of the built-in spring is fixed and the lower end is fastened to the lifting hole which is lowered and lowered to have a greater compression tension.

Description

Door opening device {apparatus for opening and shutting door}

The present invention relates to a door opening and closing device that is used to close and close automatically when the door is opened by mounting the top and bottom of the door in a pair of hydraulic and spring hinges, in particular hydraulic and spring type The hinge has a simple structure and the hydraulic hinge according to the opening and closing of the door is a smooth operation without the blockage of oil, and the spring-type hinge relates to a door opening and closing device to have a greater compression tension.

In general, the door is installed in the building for the purpose of entry and exit, the door is provided with an opening and closing device that is opened and closed by a plurality of hinges between one side end and the door frame to turn from the door frame according to the entrance.

As described above, there are various types of opening and closing devices used in the door and the door frame, but in recent years, a door opening and closing device in which a hydraulic hinge and a spring hinge are paired for the safety and convenience of the occupant is introduced. After installing the top and bottom between the door frame and the door is automatically used to close the door and close slowly.

However, the hydraulic hinge or the spring hinge of the door opening and closing device has a complicated structure, which is quite difficult to manufacture, and in the event of a failure, a problem that is almost impossible to repair occurs.

In addition, in the case of the hydraulic hinge is configured so that the oil contained in the cylinder according to the opening and closing of the door is circulated through the passage having a fairly small diameter, the passage is easily blocked by the foreign matter contained in the oil as a hydraulic hinge The loss of functionality caused the hassle of having to be replaced frequently, as well as the economic loss that resulted in significant problems.

In addition, since the coupling between the piston and the piston guide in the hydraulic hinge is coupled to the guide piece formed on both sides of the piston and the guide groove formed on the piston guide, a large torsional force is generated by the guide piece according to the opening and closing of the door, Deformation or breakage occurred also caused problems that cannot be used.

Meanwhile, even in the spring hinge of the conventional door opening and closing device, each end of the spring is directly fixed to the rotating member and the fixing member, so that only a compression tension proportional to the rotation radius of the door is generated, thereby opening and closing force according to the door opening and closing. Not only this weakness, but also a long time use, the elastic force of the spring is lowered, causing a problem that does not function properly.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, its purpose is to have a simple structure of the hydraulic and spring-type hinges consisting of a pair of door opening and closing device in the hydraulic hinge according to the door opening and closing This ensures smooth operation without blockages and allows for greater compression in the spring hinges.

Another object of the present invention is to have a greater bearing force between the piston and the piston guide according to the opening and closing of the door in the hydraulic hinge.

Still another object of the present invention is to provide a more precise control of the amount of oil flow due to the opening and closing of the door in the hydraulic hinge.

The present invention for achieving the above object is provided with a rotating shaft, a piston and a piston guide in the housing of the rotating member so that the door is not closed suddenly, the cylinder is formed with an outlet hole in the housing of the fixing member and the outlet hole to the top A hydraulic hinge mounted on the head to adjust a width of the hydraulic hinge, the oil circulation passage being formed; In the door opening and closing device consisting of a spring-type hinge for closing the door opened by the compression tension by embedding the spring, The hydraulic hinge is oil to form a plurality of support protrusions to communicate the outflow hole and the oil circulation path to the upper surface of the cylinder And having a outlet; The spring-type hinge is characterized in that the upper end of the built-in spring is fixed and the lower end is fastened to the lifting hole is lowered to have a greater compression tension.

The piston outer surface of the hydraulic hinge and the inner surface of the piston guide is characterized in that formed in a polygon corresponding to each other.

In addition, the outlet of the hydraulic hinge and the bottom end of the adjustment bolt is characterized in that the upper side is wider and the lower side is formed narrower to correspond to each other. On the other hand, the spring-type hinge is a guide sphere and the rotating shaft is mounted in the housing of the door rotating member A lowering hole formed with a fixing part for fixing the lower end of the spring to the upper surface so as to be screwed up and down, and a tension adjusting bolt for screwing the upper end of the spring is formed in the housing of the door frame fixing member. It is characterized by.

1 is a schematic exploded perspective view showing a hydraulic hinge of the present invention.

Figure 2 is a sectional view of the main part in the coupled state according to FIG.

Figure 3 is a schematic exploded perspective view showing a spring hinge of the present invention.

4 is a cross-sectional view of main parts of the coupled state according to FIG. 3.

Explanation of symbols for the main parts of the drawings

1: hydraulic hinge

10: oil outlet

12: support protrusion

110: rotating member 111: housing

112: piston guide 114: rotating shaft

115: piston 120: fixing member

121: housing 124: adjustment bolt

125: head

2: spring hinge

20: up and down

20a: fixed part 22: rotating shaft

24: guide sphere

30: tension adjusting bolt

30a: Fastening part

210: door rotating member 211: housing

220: door frame fixing member 221: housing

S: Spring

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in more detail as follows.

1 is a schematic exploded perspective view showing a hydraulic hinge of the present invention, Figure 2 is a cross-sectional view of the main portion of the coupled state according to FIG.

As shown in the pair with the spring-type hinge to be described later is installed in the upper end of the door and the door frame to the piston guide hole 112 in the cylindrical housing 111 of the rotating member 110 so that the door is not closed rapidly (114a) is provided with a rotating shaft 114, which is formed and mounted and a piston 115 is formed by the supply path 115a while being screwed up and down to the rotating shaft and the door fixing bracket 116 is formed at the outer end The cylinder 122 is fixed to one side of the door, the cylinder 122 is formed with an outlet hole (122a) through which the oil flows inside the cylindrical housing 121 of the fixing member 120 is coupled to the housing corresponding to the housing; The control bolt 124 for adjusting the amount of oil outflow from the outlet hole is mounted to the head 125 to form an oil circulation path 126, the door frame fixing bracket 128 is fixed to one side of the door frame to the outside end This brother In the hydraulic hinge (1),

The present invention shows that the oil outlet portion 10 which forms a plurality of support protrusions 12 at regular intervals such that the outlet hole 122a and the oil circulation path 126 communicate with the upper surface of the cylinder 122. .

Accordingly, when the oil in the cylinder is discharged through the outflow hole due to the piston which is raised by the rotation of the rotation shaft according to the opening and closing of the door, the oil is discharged through the wide oil passage between the support protrusions, and thus foreign matters contained in the oil, etc. It is to have a condition that can be prevented from being blocked by.

In addition, the outer surface of the piston 115 and the inner surface of the piston guide 112 are formed in a polygon corresponding to each other to combine, so that when the piston on the pivot shaft according to the opening and closing of the door is raised and lowered on the piston guide It is preferable to have a greater bearing capacity even under pressure so as to prevent twisting or damage occurring in the guide piece of the conventional piston and the guide groove of the piston guide.

In addition, the bottom of the outlet hole 122a and the adjusting bolt 124 is formed so that the upper side is wide and the lower side is narrowly formed so as to correspond to each other, to finely control the gap between the adjusting bolt and the outlet hole to precisely control the flow rate of oil. It will be adjustable.

Therefore, it is to provide a convenience that can be conveniently and conveniently adjusted to close the operation of the hydraulic hinge at a desired speed.

3 is a schematic exploded perspective view showing a spring hinge of the present invention, Figure 4 is a cross-sectional view of the main portion of the coupled state according to FIG.

As shown in the spring hinge (2) to be paired with the above-mentioned hydraulic hinge is installed to the bottom of the door and the door frame to close the open door by the compression tension of the built-in spring (S), Hinge 2 is fixed to the upper and lower ends of the built-in spring is fixed to the lifting hole 20 is lowered while rotating is configured to have a greater compression tension.

In the above, the spring-type hinge (2) is guided by the rotary shaft 22 is mounted into the housing 211 of the door rotating member 210 and the rotary shaft screwed up and down to the upper surface of the spring to be lowered Lifting hole 20 formed with a fixed portion (20a) is fixed to the bottom,

It is provided with a tension adjusting bolt 30 is screwed to form a fastening portion 30a is fastened to the upper end of the spring into the housing 221 of the door frame fixing member 220 to be coupled to the housing. A general door fixing bracket 212 is formed at an outer end of the door rotating member 210, and fixed to one side of the door frame fixing member 220. The door frame fixing bracket 222 is formed.

In the above, the fixing part of the lifting hole and the fastening part of the tension adjusting bolt form a general fitting hole so that each end of the spring is fitted, and it is preferable to couple the general fixing cap to the upper end of the housing of the door frame fixing member. , The tension adjusting bolt is screwed into the housing, the upper end is fixed by the fastening portion of the tension adjusting bolt as the tension adjustment bolt is rotated and the lower end of the self-compression tension of the spring is fixed by the fixing portion of the lifting hole It is simple and easy to adjust.

According to the configuration as described above, the door rotation member is fixed to the door according to the door opening and closing the door rotation member is rotated as the rotating shaft and the guide sphere mounted therein is rotated, thereby screwed into the rotating shaft and the bottom of the spring is fixed The descending hatch is also raised and rotated.

Accordingly, the compression tension is generated by the spring having the upper end fixed to the fastening portion of the tension adjusting bolt of the door frame fixing member, and the door is opened while being contracted.

Then, as the spring is expanded by the restoring force of the spring that the compression tension is generated and contracted, the lowering hole rotates and descends from the upper end of the spring fixed by the fastening portion of the tension adjusting bolt. Combined rotation shaft and the guide sphere and the door fixing member is to rotate the door that was opened while rotating.

Therefore, the door can be closed more smoothly by having a condition that the compression tension of the spring can be increased by the elevating opening lowering on the rotary shaft.

As described above, the present invention simply configures the structure of the hydraulic and spring hinges constituting the door opening and closing device to simplify the production and minimize the failure rate, and the hydraulic hinge according to the door opening and closing does not block the oil circulated inside. As it is circulated smoothly, it has an effect that can be used for a long time without failure, and even in the spring type hinge, the compression tension of the built-in spring is increased and lowered on the rotating shaft, so that the door has a greater compression tension. The opening and closing of the effect will be made more smoothly.

In addition, the hydraulic hinge that is the door opening and closing device is formed in the polygon corresponding to each other as the piston is raised and lowered in the piston guide, so that the maximum bearing capacity between the piston and the piston guide can be maximized to minimize deformation or damage. It also has an effect.

In addition, it is possible to finely control the amount of oil circulated in the hydraulic hinge that is the door opening and closing device, it has the effect that can be more precisely the speed control when opening and closing the door.

Claims (4)

A rotating shaft, a piston, and a piston guide are provided inside the housing of the rotating member so that the door is not closed suddenly. A cylinder having an outlet hole is formed inside the housing of the fixing member, and an adjustment bolt for adjusting the width of the outlet hole to the top thereof is provided on the head. A hydraulic hinge mounted to form an oil circulation path; In the door opening and closing device consisting of a spring-type hinge that is built in the spring to close the open door by its compression tension, The hydraulic hinge (1) is provided with an oil outlet (10) for forming a plurality of support projections (12) to communicate the outflow hole (122a) and the oil circulation path 126 to the upper surface of the cylinder (122); The spring-type hinge (2) is a door opening and closing device characterized in that the upper end of the built-in spring (S) is fixed and the lower end is fastened to the lifting hole 20 is lowered to have a higher compression tension. The door opening and closing device according to claim 1, wherein the piston 115 outer surface of the hydraulic hinge 1 and the inner surface of the piston guide 112 are formed in a polygon corresponding to each other. The door opening and closing device according to claim 1, wherein the outlet hole 122a of the hydraulic hinge 1 and the bottom end of the adjustment bolt 124 are wider at the upper side and narrower at the lower side so as to correspond to each other. According to claim 1, The spring hinge (2) is guided to the rotary shaft 22 is mounted into the housing 211 of the door rotating member 210 and the upper surface to be screwed up and down with the rotating shaft Lowering hole 20 having a fixed portion 20a fixed to the bottom of the spring, and a fastening portion 30a for fastening the upper end of the spring is formed inside the housing 221 of the door frame fixing member 220, Door opening and closing device characterized in that it comprises a tension adjusting bolt 30 is coupled.