KR102849559B1 - Lower hinge and escape door for tunnel - Google Patents

Abstract

The present invention relates to a lower hinge of a swing-type evacuation gate for a tunnel and a swing-type evacuation gate for a tunnel having the same, and more particularly, to a lower hinge of a swing-type evacuation gate for a tunnel and a swing-type evacuation gate for a tunnel having the same, which secure the rotational operation stability of the lower hinge of a door that opens and closes in a hinged manner while preventing foreign substances from accumulating in a bearing member. In order to achieve the above object, the lower hinge of a swing-type evacuation gate for a tunnel and a swing-type evacuation gate for a tunnel having the same according to the present invention are characterized by including a lower housing that is fixed to the floor of an evacuation passage in a tunnel and has a mounting groove, a bearing member that is fitted into the mounting groove, an upper housing that is coupled while covering an upper opening of the lower housing and has a shaft portion that is inserted into an shaft hole of the bearing member and protrudes from a lower surface, and a link member that is coupled at one end to the upper housing and at the other end to the swing-type door.

Description

Lower hinge and escape door for tunnel and swing type escape door for tunnel equipped with same {LOWER HINGE AND ESCAPE DOOR FOR TUNNEL}

The present invention relates to a lower hinge of a swing-type evacuation gate for a tunnel and a swing-type evacuation gate for a tunnel having the same, and more particularly, to a lower hinge of a swing-type evacuation gate for a tunnel and a swing-type evacuation gate for a tunnel having the same, which secure the rotational stability of the lower hinge of a door that opens and closes in a hinged manner while preventing foreign substances from accumulating in a bearing member.

Typically, tunnels for vehicles are constructed with the lanes in both directions separated from each other, and the tunnels for the left and right lanes are arranged adjacent to each other.

In these tunnels, in case of a disaster such as a traffic accident or fire in one lane, an evacuation passage is installed between the two lanes to allow evacuation to the other lane. An evacuation shaft door is installed in this evacuation passage.

The above-mentioned evacuation gate is normally closed to prevent noise and wind pressure from vehicles traveling in the direction of travel from being transmitted to other lanes. In the event of a disaster, the evacuation gate door is opened to allow evacuation to other lanes where no disaster has occurred.

These escape hatches are installed to open and close in a swinging, sliding, rotating, or combination of two or more of these methods.

A swing-type evacuation door, or a swing-type evacuation door, has upper and lower hinges on the upper and lower sides of the door, respectively, so that the door opens and closes by rotating back and forth.

These swing escape doors are quite heavy, so the load on the lower hinge is very large.

In particular, in the case of a swing evacuation gate, which is mainly used for moving vehicles as shown in Fig. 1 and has a separate revolving door for people to evacuate (move), the load applied to the lower hinge is greater due to the weight of the door itself, the weight of the revolving evacuation gate, and the weight of the self-closing means for automatically closing the revolving door.

Accordingly, the need arose to develop a lower hinge specifically for swing-type evacuation gates that can support the load applied to the lower hinge while distributing the load during rotation to reduce the occurrence of failure.

For reference, related prior art includes patent publication No. 10-2017-0004185, etc.

Accordingly, the present invention has been devised to solve the above-mentioned problems.

The purpose of the present invention is to provide a lower hinge of a tunnel swing-type refuge gate, which supports and distributes the load applied to the lower hinge while rotating and protects the bearing member of a tunnel swing-type refuge gate, which has a very large self-weight, such as a tunnel swing-type refuge gate used for moving vehicles, and a tunnel swing-type refuge gate equipped with the lower hinge, so that the rotational opening and closing of the swing-type refuge gate can be stably maintained.

In order to achieve the above purpose, the lower hinge of the tunnel swing-type evacuation gate according to the present invention and the tunnel swing-type evacuation gate having the same are provided.

It is characterized by including a lower housing that is fixed to the floor of an escape passage in a tunnel and has a mounting groove, a bearing member that is fitted into the mounting groove, an upper housing that is coupled while covering an upper surface opening of the lower housing and has a shaft portion that is inserted into an shaft hole of the bearing member and protrudes from a lower surface, and a link member whose one end is coupled to the upper housing and whose other end is coupled to a swing door.

And in the lower hinge of the swing-type evacuation gate for a tunnel according to the present invention and the swing-type evacuation gate for a tunnel having the same,

The upper housing includes an insertion groove formed in the center of the upper surface, and an insertion hole formed through the shaft portion with a diameter smaller than the insertion groove at the bottom of the insertion groove.

The lower housing includes an insertion hole formed to correspond to the insertion hole,

It is characterized in that the lower housing and the upper housing are connected with bolts and nuts.

In addition, in the lower hinge of the tunnel-type swing-type evacuation gate according to the present invention and the tunnel-type evacuation gate having the same,

The upper housing is characterized in that it has one or more coupling holes communicating with the mounting groove, and a lubricant injection nibble is coupled to the coupling holes.

The lower hinge of the swing-type evacuation gate for a tunnel according to the present invention and the swing-type evacuation gate for a tunnel having the same are as follows:

The upper and lower housings are male and female and are supported by a bearing member interposed between them, facilitating the rotation of the upper housing, sufficiently supporting the load applied to the lower hinge and distributing and supporting the load during rotation, thereby stably opening and closing the swing-type escape gate.

Figure 1 is a front view and a cross-sectional view of a lower hinge of a swing-type escape gate for a tunnel according to the present invention.
Figure 2 is a perspective view of a lower hinge according to the present invention.
Figure 3 is a sample photograph of the present invention.
Figure 4 is a drawing schematically illustrating a deceleration means of the present invention.

The present invention is susceptible to various modifications and may take various forms. Therefore, embodiments (or examples) are described in detail herein. However, this is not intended to limit the present invention to a specific publication form, and it should be understood that all modifications, equivalents, and alternatives fall within the spirit and technical scope of the present invention.

In each drawing, the same reference signs, especially the tens and units digits, or the tens, units digits, and alphabets, indicate parts having the same or similar functions, and unless otherwise specified, the parts indicated by each reference sign in the drawing are understood to be parts that comply with these standards.

In addition, in each drawing, the components are expressed in an exaggerated (or thick) or simplified (or thin) size or thickness for convenience of understanding, but the scope of protection of the present invention should not be interpreted as being limited by this.

The terminology used herein is merely used to describe specific implementations (modes, aspects) (or examples) and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise.

In this application, terms such as “include” or “consist of” are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but should be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

The terms "first", "second", etc. described in this specification are only used to distinguish between different components, and are not limited to the manufacturing order, and their names may not be consistent in the detailed description of the invention and the claims.

In explaining the lower hinge of the tunnel-type swing-type evacuation gate according to the present invention and the tunnel-type swing-type evacuation gate equipped with the same, for the sake of convenience, a rough, but not strict, direction reference is specified with reference to FIG. 1. Up, down, left, and right are determined as the direction in which gravity acts as the downward direction, and the detailed description of the invention and claims related to other drawings are also described by specifying the direction according to this reference unless otherwise specifically stated.

Hereinafter, a lower hinge of a tunnel-type swing-type evacuation gate according to the present invention and a tunnel-type evacuation gate equipped with the same will be described with reference to the attached drawings.

The present invention relates to a lower hinge (LH) of a swing-type evacuation gate for a tunnel and a swing-type evacuation gate for a tunnel having the same, as shown in FIGS. 1 to 3. It is sufficient that an upper hinge (not indicated in the drawing symbol) and a lower hinge (LH) are connected to one end of the door, and there is no limitation on the use (for people or vehicles, etc.) or structure (single door type or double door type, etc.) of the swing-type evacuation gate.

However, as shown in Fig. 1, a main door and an auxiliary door for vehicles are installed in a double-door type on both sides of the entrance of the wall forming the escape route so as to be able to be opened and closed in a swing-type evacuation passage, and an entrance for people to enter and exit is formed on the main door, and it is more preferable that the lower hinge (LH) of the present invention is provided on each of the swing-type doors (HD1) (HD2) forming the main door and the auxiliary door of the swing-type evacuation passage, in which a person-use revolving door (RD) is installed at the entrance of the main door.

At this time, the above-mentioned rotary door (RD) is installed to rotate only in one direction (counterclockwise as shown in Fig. 1) and is connected to the wire (W, see Fig. 4) of the self-locking means (AC) installed in the main door.

The above-mentioned self-locking means (AC) is installed with a spring-like mechanism (not shown), and both ends of a wire (W) passing through a pulley are connected to a winding drum (not shown) connected to the spring-like mechanism and the rotational axis (RD1) of a rotary door (RD), respectively, and the middle part of the wire (W) is fixed to a bracket (100, see Fig. 4) that moves linearly along a rail (R, see Fig. 4) to guide the movement of the wire (W).

When the rotary door (RD) is opened by pushing the door in one direction, the wire (W) is released from the spring-like mechanism and wound around the winding drum.

After a certain period of time, the lock of the automatic release mechanism (AC) is released, a spring-like mechanism is activated, and the wire (W) is pulled back to its original position, causing the rotary door (RD) to automatically rotate in the other direction and close.

The swing-type evacuation shaft door with the self-locking revolving door (RD) installed in this way has a large weight of each swing-type door (HD1)(HD2) of the main door and auxiliary door due to its size and the installation of additional parts, so the load applied to the hinges that serve as the axis for opening and closing, especially the lower hinge (LH), is large, and there is a high risk of damage or failure.

Accordingly, the present invention introduces a lower hinge (LH) that can solve the above-mentioned problem.

The lower hinge (LH) of the present invention includes a lower housing (10) that is fixed to the floor of an escape passage in a tunnel and has a mounting groove (11), a bearing member (20) that is fitted into the mounting groove (11), an upper housing (30) that is coupled while covering an upper opening of the lower housing (10) and has a shaft portion (31) that is inserted into an shaft hole (21) of the bearing member (20) protruding from the bottom surface, and a link member (40) that has one end coupled to the upper housing (30) and the other end coupled to a swing door (HD1) (HD2).

The above lower housing (10) has a cylindrical shape with an open upper surface, and the inner space of the side wall portion (13) forms a mounting groove (11), and a protrusion is formed at the inner corner of the side wall portion (13) to support the outer ring of the bearing member (20).

And the lower housing (10) has an insertion hole (12) corresponding to the insertion hole (33) of the upper housing (30) formed through the center of the bottom.

Additionally, the side wall portion (13) of the lower housing (10) includes a mounting groove (14) formed along the upper outer surface.

Next, the bearing member (20) enables rotation of the upper housing (30) with respect to the lower housing (10), and it is more preferable to use a tapered bearing considering the load of the swing door (HD1) (HD2).

The upper housing (30) has a cylindrical shape with an open lower surface, and the shaft (31) protrudes in a pillar shape on the inner lower surface of the upper surface.

The above shaft part (31) is inserted into the inner ring of the bearing member (20), and a protrusion is formed at the outer edge where the upper housing (30) and the shaft part (31) meet, so that the shaft part is supported by the inner ring of the bearing member (20), and the upper housing (30) rotates while being supported by the bearing member (20).

And the upper housing (30) includes an insertion groove (32) formed in the center of the upper surface, and an insertion hole (33) formed by penetrating the shaft (31) with a diameter smaller than the insertion groove (32) at the bottom of the insertion groove (32).

The above lower housing (10) and upper housing (30) are connected with a bolt (not shown) and a nut (N).

The above insertion groove (32) has a depth and diameter that allow the head of a nut (N) or bolt to be completely buried, and the above insertion hole (33) and insertion hole (12) have a diameter that allow the threaded portion of the bolt to be inserted.

At this time, considering that the insertion groove (32) is covered by the combination of the link member (40), it is more preferable to fit a nut (N) into the insertion groove (32) and fasten it by inserting a bolt into the insertion hole (12).

Accordingly, the lower housing (10) and the upper housing (30) are connected vertically by tightening bolts and nuts (N), and at this time, the bearing member (20), particularly the tapered bearing, is interposed between the lower housing (10) and the upper housing (30) to provide cloud support, thereby supporting the load of the swing door (HD1) (HD2) applied to the lower hinge (LH) and enabling smooth rotation opening and closing.

In addition, the upper housing (30) has one or more connecting holes (34) formed through the circumference of the insertion groove (32) to communicate with the mounting groove (11), and a lubricant injection nibble (341) is connected to the connecting hole (34).

In particular, it is preferable that three connecting holes (34) are arranged at a 90-degree angle with respect to the insertion groove (32), so that the link member (40) is connected to the upper surface of the upper housing (30) using two connecting holes (34) on the same line, and the nibble (341) is connected to the remaining one connecting hole (34).

The above nibble (341) is for adding a known lubricant for bearings. In order to prevent the bearing's lubricant from drying out or vaporizing due to long-term non-use, thereby causing loss of bearing function, lubricant is periodically added and replenished using the nibble (341).

In addition, the upper housing (30) is joined by having the side wall portion (35) covered over the mounting groove (14), thereby blocking various foreign substances, including smoke and dust generated from vehicles in the tunnel, from entering the lower hinge (LH).

The above link member (40) is a bar-type member, one end of which is bolted to the upper surface of the upper housing (30), and the other end is welded to the lower edge of one side of the swing door (HD).

At this time, the link member (40) is connected to the upper housing (30) by covering the upper surface of the upper housing (30) in the radial direction completely through the two connecting holes (34) on the same line described above, thereby preventing damage.

It is preferable that the lower hinge (LH) be installed fixedly on the upper surface of the stand as shown in Fig. 3, and the structure or shape of the stand can be modified in various ways.

Meanwhile, the evacuation shaft door of the present invention is installed to automatically close after a predetermined time has passed after being opened through the above-mentioned self-closing means (AC), and a reducer (not shown) is installed in the self-closing means (AC) to reduce the speed of the rotary door (RD) to a constant speed when it is automatically closed.

Furthermore, the present invention introduces a mechanically driven reduction means in addition to the reduction means of the self-locking means (AC) itself, thereby ensuring low-speed closing of the rotary door (RD) in preparation for a breakdown of the reduction means, thereby preventing injuries caused by collision with the rotary door (RD) closing during evacuation.

Specifically, as shown in Fig. 4, it includes a rail (R) that guides the movement of a bracket (100) to which a wire (W) is fixed by connecting the winding drum of the self-locking means (AC) and the rotary door (RD) in a straight line.

The above deceleration means is,

A reduction bar (R1) having reduction projections (R11) arranged at regular intervals on the upper surface and having a sloped surface that is inclined upward in the opening rotation direction of the rotary door (RD) and is installed in parallel on one side of the front and rear of the rail (R),

A guide groove (101) formed parallel to the inclined surface of the reduction projection (R11) in the above bracket (100) and having a return plate (102) elastically supported in a downward slope direction,

A hook bar (110) having a support shaft (111) fitted into the guide groove (101) on one end and a support roller (112) supported on the upper surface of the reduction bar (R1) on the other end;

The above-mentioned hook (110) includes a torsion spring (104) that elastically supports the downward rotation about the support shaft (111).

The above deceleration bar (R1) may be provided with deceleration projections (R11) along the entire length, or the deceleration projections (R11) may be provided at a certain section before the rotary door (RD) is completely closed.

The above bracket (100) is of a box type and has the guide groove (101) formed on one or both side walls of the front and rear, and is coupled to move along the rail (R) with a groove insertion structure, although not shown in the drawing.

The above return plate (102) is fitted into the guide groove (101) with a sliding structure and moves forward and backward in a diagonal direction, and is elastically supported by a compression spring (103) so as to move forward in a downward slanted direction.

The above torsion spring (104) exerts elastic force in the direction in which both ends spread apart to force the hook bar (110) to rotate downward. At this time, the bracket (100) has a protrusion (105) that limits the rotation angle of the hook bar (110) so that the hook bar (110) rotates downward within an angle that matches the inclination direction of the guide groove (101).

Accordingly, when the above-described rotary door (RD) is opened by rotating in one direction (counterclockwise in FIG. 1), the bracket (100) moves by the wire (W) wound around the winding drum, and the support roller (112) moves along the upper surface of the reduction bar (R1). At this time, when passing the reduction projections (R11), the catch bar (110) rotates upward, and the support roller (112) passes over the reduction projection (R11) and then rotates downward to the original position by the torsion spring (104) (operation ① in the drawing), so as not to interfere with the opening speed of the rotary door (RD).

On the other hand, when the rotary door (RD) is closed by rotating in the other direction (clockwise in Fig. 1) by the self-locking means (AC), if the support roller (112) is caught on the right-angled surface of the deceleration projection (R11), the deceleration bar (R1) moves backward toward the upper end of the guide groove (101) due to the collision pressure, and the support roller (112) rises together and passes over the deceleration projection (R11) (operation ② in the drawing). In this way, the closing speed of the rotary door (RD) is periodically reduced due to the pressure generated when the support roller (112) collides with the deceleration projections (R11) and the time difference generated when the support roller (112) passes over the deceleration projections (R11), so that the closing speed of the rotary door (RD) can be reduced to a speed below a certain level together with or alone the deceleration device of the self-locking means (AC).

In describing the present invention above, the lower hinge (LH) of a tunnel-type swing-type evacuation gate and the tunnel-type evacuation gate having the same have been mainly described with reference to the attached drawings. However, the present invention can be variously modified, changed and substituted by those skilled in the art, and such modifications, changes and substitutions should be interpreted as falling within the scope of protection of the present invention.

*Description of the main parts of the drawing*
HD, HD1, HD2: Swing door RD: Revolving door
AC: Autism W: Wire
LH: Lower hinge R: Rail
10: Lower housing 20: Bearing member
30: Upper housing 40: Link member

Claims (4)

In a tunnel swing-type evacuation shaft door, a main door and an auxiliary door for vehicles are installed in a double-door type on both sides of an entrance and exit of a wall forming an evacuation passage in a tunnel and can be opened and closed in a swing-type manner, and an entrance for people to enter and exit is formed on the main door, and a revolving door (RD) for people is installed on the entrance and exit of the main door.
The above main door and auxiliary door are composed of swing doors with upper and lower hinges connected to one end,
The lower hinge comprises a lower housing (10) fixed to the floor of an escape passage in a tunnel and having a mounting groove (11), a bearing member (20) fitted into the mounting groove (11), an upper housing (30) that is coupled while covering an upper surface opening of the lower housing (10) and has a shaft portion (31) protruding from the bottom surface and inserted into an shaft hole (21) of the bearing member (20), and a link member (40) whose one end is coupled to the upper housing (30) and whose other end is coupled to the swing door.
The above revolving door (RD) is installed to rotate in only one direction and is connected to the wire of the self-locking means (AC) installed on the main door.
The above-mentioned self-locking means (AC) is installed with a spring-like mechanism (not shown), and both ends of the wire (W) passing through the pulley are connected to a winding drum (not shown) connected to the spring-like mechanism and the rotational axis (RD1) of the rotary door (RD), and the middle part of the wire (W) is fixed to a bracket (100) that moves linearly along the rail (R) to guide the movement of the wire (W).
When the above rotary door (RD) is opened by pushing the door in one direction, the wire (W) is released from the spring-like mechanism and wound around the winding drum.
After a certain period of time, the lock of the automatic release mechanism (AC) is released, a spring-like mechanism is activated, the wire (W) is pulled back to its original position, and the rotary door (RD) automatically rotates in the other direction to close.
Including a deceleration means for decelerating the speed to a constant speed when the above rotary door (RD) is automatically closed,
It includes a rail (R) that guides the movement of a bracket (100) to which a wire (W) is fixed by connecting the winding drum of the above-mentioned self-locking means (AC) and the rotary door (RD) in a straight line,
The above deceleration means is,
A reduction bar (R1) having reduction projections (R11) arranged at regular intervals on the upper surface and having a sloped surface that is inclined upward in the opening rotation direction of the rotary door (RD) and is installed in parallel on one side of the front and rear of the rail (R),
A guide groove (101) formed parallel to the inclined surface of the reduction projection (R11) in the above bracket (100) and having a return plate (102) elastically supported in a downward slope direction,
A hook bar (110) having a support shaft (111) fitted into the guide groove (101) on one end and a support roller (112) supported on the upper surface of the reduction bar (R1) on the other end;
A swing-type evacuation gate for a tunnel, characterized in that the above-mentioned hook (110) includes a torsion spring (104) that elastically supports the downward rotation about the support shaft (111). In the first paragraph,
The upper housing (30) includes an insertion groove (32) formed in the center of the upper surface, and an insertion hole (33) formed by penetrating the shaft (31) with a diameter smaller than the insertion groove (32) at the bottom of the insertion groove (32).
The above lower housing (10) includes an insertion hole (12) formed to correspond to the insertion hole (33).
A swing-type escape gate for a tunnel, characterized in that the lower housing (10) and the upper housing (30) are connected with a bolt (not shown) and a nut (N).
In the second paragraph,
A swing-type evacuation gate for a tunnel, characterized in that the upper housing (30) has one or more connecting holes (34) communicating with the mounting groove (11), and a lubricant injection nibble (341) is connected to the connecting hole (34).
In any one of claims 1 to 3,
A swing-type evacuation gate for a tunnel, characterized in that the lower hinge is fixed and installed on the upper surface of the support.