KR20170021080A - Oil pressure hinge for opening and closing a door - Google Patents

Oil pressure hinge for opening and closing a door Download PDF

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Publication number
KR20170021080A
KR20170021080A KR1020150115437A KR20150115437A KR20170021080A KR 20170021080 A KR20170021080 A KR 20170021080A KR 1020150115437 A KR1020150115437 A KR 1020150115437A KR 20150115437 A KR20150115437 A KR 20150115437A KR 20170021080 A KR20170021080 A KR 20170021080A
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KR
South Korea
Prior art keywords
hydraulic pressure
hydraulic
piston
guide
cylinder
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Application number
KR1020150115437A
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Korean (ko)
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KR101775661B1 (en
Inventor
장종복
정순자
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장종복
정순자
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Priority to KR1020150115437A priority Critical patent/KR101775661B1/en
Publication of KR20170021080A publication Critical patent/KR20170021080A/en
Application granted granted Critical
Publication of KR101775661B1 publication Critical patent/KR101775661B1/en

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/14—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with fluid brakes of the rotary type

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The present invention relates to a hydraulic hinge for opening and closing a door. The hydraulic hinge for opening and closing a door comprises: a plate unit (110); a housing unit (120); a hydraulic guide unit (130); a vertical guide unit (140); a hydraulic control unit (150); an expansion and contraction control unit (160); a lifting guide unit (170); and a finishing cap (180). Internal hydraulic pressure of the hinge is efficiently tuned outside.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hydraulic hinge for opening and closing a door,

The present invention relates to a hydraulic hinge for opening and closing a door, and more particularly, to a hydraulic hinge for opening and closing a door, which can smoothly and safely be closed when a door with a hydraulic hinge is closed, And to provide a hydraulic hinge for opening and closing a door that can be mass-produced at a low cost.

Generally, the hinges of the doors are made of manually operated hinges and free hinges to automatically close the open door by spring or hydraulic or a combination thereof.

Such a conventional free hinge is closed by the elasticity of the spring after opening the door, and at this time, the elasticity of the spring is kept constant by using the hydraulic pressure so that the door is closed gradually.

In the conventional spring type free hinge, the built-in spring is wound when the door is opened, and when the door is closed, the door is closed as the spring wound by opening the door is released to the original position.

Especially, after the door is opened, it is closed by the elasticity of the spring. At this time, the elasticity of the spring is kept constant by using the hydraulic pressure, so that the door is closed gradually.

However, in the conventional free hinge, when the door is closed only by the spring due to the increase of the cost due to the installation of the hydraulic device, the elasticity of the wound spring is transmitted to the door as it is and is suddenly closed. there was.

In addition, since the hydraulic device must be very precise and must maintain airtightness, there is a fear of damage due to leakage of hydraulic pressure due to long-term use, and in addition to shortening the service life of the free hinge, .

On the other hand, in the conventional free hinge, the resistance increases due to friction with the door frame immediately before the door is almost closed, and the elasticity and the hydraulic pressure are relatively decreased, so that the door can not be completely closed frequently.

In order to overcome such drawbacks, it is conventionally required to increase the hydraulic pressure and the elasticity so that the door is operated with a greater force than when the door is closed. Therefore, stress accumulates in the free hinge due to long- term use, thereby shortening the life span, It is inconvenient for the elderly to use and even cause safety accidents.

The main object of the present invention is to provide a hydraulic hinge for a door opening which not only enables the internal hydraulic pressure of the hinge to be effectively used from outside, but also can supply a high quality hydraulic hinge at low cost.

Another object of the present invention is to provide a hydraulic door hinge for a door of high quality which can smoothly and safely be closed when a door with a hydraulic hinge is closed and the closing moment of the door is actively acted by a momentarily closing force of the door .

According to an aspect of the present invention, there is provided a hydraulic hinge for opening and closing a door, comprising: a plate portion having left and right plates respectively; A housing part having a central housing and upper and lower housings formed between the left and right plates of the plate part; A hydraulic pressure guide portion for coupling the cylinder to the central housing of the housing portion to interlock with each other; A vertical guide portion for vertically guiding a vertical guide pipe formed with a guide slot in the cylinder of the hydraulic pressure guiding portion so as to be upwardly engaged; A hydraulic pressure regulator for inserting a piston into the cylinder of the hydraulic pressure guiding part and forming a rod upwardly, the hydraulic pressure regulator communicating the upper and lower portions of the piston with a hydraulic passage, An expansion and contraction portion for inserting an adjustment block into a lower portion of the cylinder of the hydraulic pressure guide portion and connecting the adjustment block and the piston to each other through a stretch connection pipe so as to adjust the hydraulic pressure passage from the outside; And a rotation guide tube having a vertical guide tube inserted into the upper housing of the housing part. The guide guide hole and the helical guide hole corresponding to the fastening hole are drilled in the rotation guide tube. The helical guide slot, the guide slot and the fastening hole And a rising / descending inducing unit coupled to the upper end of the guide member.

Therefore, when the door is opened, a rotary force is transmitted to the fastening hole formed in the spiral guide hole of the rotation guide pipe, the guide slot of the vertical guide pipe and the rod of the piston, so that the power transmission pin is rotated As the motion is converted into rectilinear motion and moves upward along the guide slot so that the rod is pulled upward and the piston moves to the top dead point and the open door is automatically closed by the spring hinges in the free state, The piston is moved past the extended inclined jaws of the cylinder immediately before the hydraulic pressure applied to the piston, thereby temporarily closing the hydraulic pressure applied to the lower portion of the piston, so that the door can be accurately closed by the weakened elastic action. Conveniently tune the flow rate to the hydraulic passage of the piston efficiently So that the door can be smoothly and safely closed when the door is closed, and the closing moment of the door is actively acted so that the closing operation of the door is completely finished It is.

1 is a front view showing an installation state of a hydraulic hinge for opening and closing a door according to the present invention;
2 is a perspective view showing a disassembled state of a hydraulic hinge for opening and closing a door according to the present invention;
3 is a sectional view showing a state of engagement of a hydraulic hinge for opening and closing a door according to the present invention.
4 is a cross-sectional view showing an opened state of a hydraulic hinge for opening and closing a door according to the present invention.
6 is a cross-sectional view showing a state before the closing of a hydraulic hinge for opening and closing a door according to the present invention.
6 is a sectional view showing a closed state of a hydraulic hinge for opening and closing a door according to the present invention.
7 is a cross-sectional view showing a spring operating state of a hydraulic hinge for opening / closing a door according to the present invention.
8 is a cross-sectional view showing a state in which the hydraulic hinge for opening and closing the door according to the present invention is engaged with another expansion joint pipe.
9 is a cross-sectional view showing a state in which the hydraulic hinge for opening and closing the door according to the present invention is engaged with another expansion joint pipe.

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

1 to 9, the hydraulic hinge 100 for opening and closing a door of the present invention has a door frame 2 and left and right plates 111 and 112 coupled to the door 1, respectively, A plate portion (110) for fixing to the frame (2); A housing part 120 for rotating the plates 112 and 113 by forming a center housing 121 and upper and lower housings 122 and 123 between the left and right plates 112 and 113 of the plate part 110; A hydraulic pressure guiding part 130 for coupling the cylinder 131 to the inside of the central housing 121 of the housing part 120 to interlock with each other; A vertical guide 140 which engages a vertical guide pipe 141 on the upper side of the cylinder 131 of the hydraulic pressure guiding unit 130 and interlocks with the vertical guide pipe 141 so that a guide slot 142 is formed in the vertical guide pipe 141; The piston 151 is inserted into the cylinder 131 of the hydraulic pressure guiding part 130 so that the piston 151 can be moved up and down and the rod 152 is formed upwardly of the piston 151, The piston 152 is formed with a screw adjusting groove 154 at the center of the bottom of the piston 152 and a hydraulic passage 155 communicating with the upper and lower sides of the piston 151 is formed, A hydraulic pressure regulating part 150 for controlling the flow rate of the hydraulic pressure passage 155 by engaging an adjusting part 156 with the groove 154; An adjusting block 161 is inserted into a lower portion of the cylinder 131 of the hydraulic pressure guiding portion 130 so as to be coupled to the adjusting portion 156 of the hydraulic pressure adjusting portion 150 so that the adjusting portion 156 can be rotated. 151) for expanding and contracting the hydraulic oil to be smoothly externally regulated by connecting the hydraulic cylinder to an expansion joint pipe (165) extending and retracting in accordance with a rise and a fall of the hydraulic cylinder (151). A rotation guide pipe 171 is inserted into the upper housing 122 of the housing part 120 to interlock the rotation guide pipe 171 and the vertical guide pipe 141 is inserted into the rotation guide pipe 171, A guide raising and lowering guide 170 for piercing a guide slot 172 corresponding to the guide slot 142 and the fastening hole 153 to engage the power transmission pin 173 to convert rotational motion into linear motion; And a finishing cap 180 coupled to the upper and lower housings 122 and 123 of the housing part 130.

The plate portion 110 is formed with left and right plates 111 and 112, respectively, and a plurality of fixing holes are drilled so as to be coupled to the door 1 and the door frame 2, respectively.

The housing part 120 includes a center housing 121 formed on one side of the left plate 111 and upper and lower housings 122 and 123 located on the upper and lower sides of the center housing 121 on one side of the right plate 112 A plurality of pin holes are formed in the outer circumferences of the central housing 121 and the upper and lower housings 122 and 123 to couple the plurality of setting pins 124 as necessary.

The hydraulic guide hole 130 is formed by filling oil in the cylinder 131 and an extended beveled protrusion 132 is formed on the inner circumference of the cylinder 131 so that the inner diameter of the lower side of the cylinder 131 is larger than the inner diameter of the upper side of the cylinder 131 .

The vertical guide 140 is formed by vertically inserting a vertical guide pipe 141 upwardly to the upper side of the cylinder 131 to interlock the vertical guide pipe 141, desirable.

The hydraulic pressure regulator 150 can move vertically by inserting a piston 151 into the cylinder 131 and form a rod 152 in the upward direction of the piston 151 to be guided by the vertical guide pipe 141, It is preferable that the rod 152 is moved vertically in the vertical guide pipe 141 by the double action of the piston 151. In this case,

The coupling hole 153 corresponding to the guide slot 142 of the vertical guide pipe 141 is inserted into the rod 152 of the piston 151.

A hydraulic passage 155 is formed in the center of the bottom surface of the piston 151 so as to communicate with upper and lower sides of the piston 151. A hydraulic passage 155 is formed in the screw groove 154). [0053] As shown in Fig.

In addition, the control valve 156 is provided to be screwed into the screw control groove 154 so as to control the coupling state of the control valve 156 and the screw control groove 154 to control the flow rate through the hydraulic pressure passage 155 .

The control valve 156 is provided with a hydraulic passage 157 penetrating the inside of the control valve 156 and coupled to the hydraulic passage 157 by a check valve 158 formed by a ball and a spring, (U) -type packing is combined with the piston 151 so as to control the hydraulic pressure along the upper and lower teeth of the piston 151 efficiently.

The expansion and contraction portion 160 is formed by coupling an adjustment block 161 to an inner lower portion of the cylinder 131 and forming an oil supply passage 162 perpendicularly to the adjustment block 161, And a blocking bolt 163 is provided at a lower portion of the oil supply passage 162.

Here, it is preferable that the latching jaw corresponding to the upper end of the adjusting block 161 be set to an accurate position when the adjusting block 161 is inserted into the inner periphery of the cylinder 131.

The upper end of the expansion joint pipe 165 is connected to the regulating opening 156 of the oil pressure regulating part 150 by a key engagement So that the control member 156 can be rotated or reversed.

Therefore, the degree of engagement between the adjusting member 156 and the screw adjusting groove 154 can be adjusted externally by the expansion joint pipe 165 extending / retracted in accordance with the upward / downward movement of the piston 151, .

Here, it is preferable that the latching jaw corresponding to the upper end of the adjusting block 161 be set to an accurate position when the adjusting block 161 is inserted into the inner periphery of the cylinder 131.

On the other hand, a protruding portion of a snap ring 166, which is an elastic body, is fitted to the spline 164 and is provided with a snap ring 166 which forms a spline 164 at the lower outer periphery of the adjustment block 161 and engages with the spline 164, Or the position of the adjustment block 141 in accordance with the reverse rotation can be accurately set.

In addition, a plurality of passages for oil supply are formed in the control block 161 and the expansion joint pipe 165.

The lifting guide 170 connects the rotation guide pipe 171 to the inside of the upper housing 122 of the housing part 120 to interlock the rotation guide pipe 171. The vertical guide pipe 141 is inserted into the rotation guide pipe 171 A helical guide elongated hole 172 corresponding to the fastening hole 153 formed in the rod 152 of the piston 151 and the guide elongated hole 142 of the vertical guide tube 141 is drilled in the rotary guide tube 171 Since the helical guide elongated hole 172, the guide elongated hole 142 and the fastening hole 153 are penetrated by the power transmission pin 173, the rotational movement of the rotation guide pipe 171 is converted into linear motion by the power transmission pin 173 .

As shown in FIG. 7, the finishing cap 180 can use various conventional finishing cap structures such as the elasticity regulator 181 and the torsion spring 183 in which the clamp 181 is formed.

As shown in FIGS. 8 and 9, not only can the stretch connection pipe 165 be formed in one stage, two stages, or multiple stages, but it can also be used as a rod.

The operation of the present invention will be described as follows.

First, when the door 1 is opened, the right plate 112 and the upper and lower housings 122 and 123 rotate, and the rotation guide pipe 171 coupled to the upper housing 122 rotates in conjunction therewith.

The spiral guide elongated hole 172 of the rotation guide pipe 171 penetrating through the power transmission pin 173 and the guide elongated hole 142 of the vertical guide pipe 141 and the rod 152 of the piston 151 are punched A rotational force is transmitted to one of the fastening holes 153 so that the rotational force is converted into linear motion by the guide slot 142 to move upward along the guide slot 142, So that the piston 151 moves to the top dead center within the cylinder trench 131.

At this time, the check valve 158 of the piston 151 is opened by the generation of the upper hydraulic pressure so that the door 1 can be opened smoothly.

At this time, the door 1 is automatically closed by the spring hinge 101, which is installed separately from the free state. At this time, the rotation guide pipe 171 is rotated in the reverse direction, So that the piston 151 moves to the bottom dead center within the cylinder 131. [

At this time, since the check valve 158 is closed by the generation of the hydraulic pressure in the lower side, the only one is closed only slowly and securely while flowing only to the hydraulic passage 155 of the piston 151.

Even if the elastic action of the spring hinge 101 is minimized before the door 1 is completely closed, since the piston 151 passes the extended inclined protrusion 132 of the cylinder 131, So that the door 1 is correctly closed by the weakened elastic action.

In particular, the present invention controls the flow rate of the oil flowing into the hydraulic passage 155 of the piston 151 from the outside easily and conveniently due to the expansion joint pipe 165, so that the door 1 can be safely and automatically closed in the best condition .

100: Hydraulic hinge 110: Plate part
111: left plate 112: right plate
120: housing part 121: central housing
122: upper housing 123: lower housing
124: setting pin 130: hydraulic guide portion
131: cylinder 132: extended ramp
133: setting pin 140: vertical guide portion
141: vertical guide tube 142: guide slot
150: Hydraulic regulator 151: Piston
152: rod 153: fastening ball
154: screw adjusting groove 155: hydraulic passage
156: regulating valve 157: hydraulic passage
158: check valve 160:
161: regulating block 162: oil supply passage
163: Cut-off bolt 164: Spline
165: Retraction connector 166: Retaining ring
170: ascending / descending induction portion 171: rotation guide tube
172: Spiral guide elongated hole 173: Power transmission pin
180: Closing cap 181:
182: clutch 183: torsion spring

Claims (6)

A plate portion 110 formed with left and right plates 111 and 112, respectively;
A housing part 120 having a center housing 121 and upper and lower housings 122 and 123 formed between the left and right plates 112 and 113 of the plate part 110;
A hydraulic pressure guiding part 130 for coupling the cylinder 131 to the central housing 121 of the housing part 120 so as to interlock with each other;
A vertical guide 140 for vertically coupling a vertical guide pipe 141 having a guide slot 142 formed in a cylinder 131 of the hydraulic pressure guide 130 upward;
The piston 151 is inserted into the cylinder 131 of the hydraulic pressure guide part 130 and the rod 152 is formed upward so that the fastening hole 153 corresponding to the guide slot 142 is formed in the rod 152 A hydraulic pressure regulating part 150 communicating the upper and lower sides of the piston 151 with the hydraulic pressure passage 155;
An adjusting block 161 is inserted into a lower portion of the cylinder 131 of the hydraulic pressure guiding portion 130 and the adjusting block 161 and the piston 151 are connected to each other by a telescopic connecting pipe 165, A stretchable and contractible portion 160 that can be adjusted; And
A rotation guide pipe 171 into which a vertical guide pipe 141 is inserted is coupled to an upper housing 122 of the housing part 120 and a guide hole 142 and a fastening hole 153 are formed in the rotation guide pipe 171 And a lifting guide portion 170 which is formed by drilling the corresponding helical guide elongated hole 172 and connecting the helical guide elongated hole 172 with the power transmission pin 173 through the guide elongated hole 142 and the fastening hole 153 A hydraulic hinge for opening and closing a door.
The method according to claim 1,
The hydraulic guide hole 130 is formed by filling the cylinder 131 with oil and forming an extended beveled protrusion 132 on the inner periphery of the cylinder 131 to form a larger inner diameter on the lower side than an inner diameter of the upper side of the cylinder 131 Wherein the hinge is a hinge for opening and closing a door.
The method of claim 1, wherein
The hydraulic pressure regulator 150 includes a hydraulic pressure passage 155 formed in the center of the bottom surface of the piston 151 and having a screw adjusting groove 154 therein and communicating the upper and lower sides of the piston 151, And an adjusting member 156 extending vertically from the outer circumferential edge of the screw adjusting groove 154 and screwed into the screw adjusting groove 154. Therefore, Wherein the hydraulic hinge is configured to control the flow rate of the hydraulic fluid passing through the hydraulic passage (155).
The method of claim 3, wherein
The control valve 156 is formed with a hydraulic pressure passage 157 penetrating the inside of the control valve 156 and a check valve 158 formed by a ball and a spring is coupled to the hydraulic pressure passage 157. At the outer circumference of the piston 151, Wherein the packing is formed in a U shape so that the hydraulic pressure of the piston (151) along the upper and lower teeth can be efficiently controlled.
The method according to claim 1,
The extension and contraction portion 160 forms an oil supply passage 162 perpendicular to the adjustment block 161 and a passage for oil supply is provided in the oil supply passage 162 and the expansion joint pipe 165 of the adjustment block 161 A plurality of holes are formed in the cylinder 131 so that the oil can be easily filled into the cylinder 131 from the outside and the blocking bolt 163 is provided in the lower part of the oil supply passage 162, Wherein a position of the adjusting block (141) is accurately set by elastically coupling a snap ring (166) to the spline (164).
6. The method according to any one of claims 1 to 5,
The expansion and contraction portion 160 is formed in the adjustment block 161 with the expansion joint pipe 165 upwardly of the oil supply passage 162 and the upper end of the expansion joint pipe 165 is connected to the regulator 156 of the control valve 156 so that the control valve 156 can be rotated or reversely rotated. Due to the expansion and contraction pipe 165 extending and retracting as the piston 151 moves up and down, And the hydraulic pressure can be accurately adjusted from the outside by adjusting the degree of engagement of the groove (154).
KR1020150115437A 2015-08-17 2015-08-17 Oil pressure hinge for opening and closing a door KR101775661B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150115437A KR101775661B1 (en) 2015-08-17 2015-08-17 Oil pressure hinge for opening and closing a door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150115437A KR101775661B1 (en) 2015-08-17 2015-08-17 Oil pressure hinge for opening and closing a door

Publications (2)

Publication Number Publication Date
KR20170021080A true KR20170021080A (en) 2017-02-27
KR101775661B1 KR101775661B1 (en) 2017-09-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220144083A (en) * 2021-04-19 2022-10-26 장종복 safety opening and shutting apparatus of manhole cover

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200219473Y1 (en) * 2000-10-28 2001-04-02 이원옥 Hydraulic Controlled Shock-absorbing Hinge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220144083A (en) * 2021-04-19 2022-10-26 장종복 safety opening and shutting apparatus of manhole cover

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Publication number Publication date
KR101775661B1 (en) 2017-09-19

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