KR20200112267A - ventilation water control grating - Google Patents

Abstract

The present invention relates to a ventilation opening water blocking grating that can easily prevent flooding of a ventilation opening only by grating installed at the ventilation opening of a subway. The ventilation opening water blocking grating includes: a front frame; a rear frame that is spaced apart from the front frame; left side frame and right side frame installed to connect the ends of the front frame and the rear frame; a plurality of partition bars installed to connect the front frame and the rear frame; and a connection bar coupled to the upper end of the partition bar to form a plurality of partition spaces inside the partition bar, wherein the front frame includes: a plurality of upper guide holes formed in the upper length direction; and an elongated lower guide hole formed in the lower longitudinal direction apart from the upper guide hole, wherein one side of the right side frame and the partition bar is installed to be able to flow through a connector, and the upper and lower portions facing the front frame and the rear frame are configured by combining a wing plate having an upper protrusion protruding through the upper guide hole and a lower protrusion protruding through the lower guide hole.

Description

Ventilation water control grating

The present invention relates to a ventilation hole order grating, wherein a separate water supply device is not required to be installed at the lower or upper part of the grating through a plurality of wing plates installed between the partition walls of the grating, and the order of the ventilation openings to prevent flooding of the subway with only grating It's about grating.

The subway is an urban train in which part or all of the downtown area can be operated by a dedicated lane underground by the high-speed train system.

As described above, the subway is formed so that the city train can run underground, and stairs, escalators, elevators, etc. are installed in the underground space to facilitate human traffic. In particular, to prevent the underground space from being sealed. It is achieved by installing a plurality of ventilation holes connected to the ground.

At this time, the ventilation openings installed in the subway are installed in a location where people cannot pass, or are installed so as to form a location adjacent to the ground for the passage of people, and in general, various foreign substances or water are prevented from flooding through the subway ventilation openings. To do this, grating and immersion devices are installed.

For example, conventionally, as in Document (1), a grating is installed to prevent inundation of various foreign substances or water through a ventilation opening of a subway, or as in Document (2), a water supply device is installed as a ventilation opening of a subway. A configuration has been proposed.

However, when conventional gratings such as literature (1) are installed and used in the ventilation openings of the subway, it is difficult to easily prevent water from penetrating through the partition walls of the grating, so that a water-shielding device must be separately installed at the top and bottom of the grating. There was a problem that unnecessary costs may occur due to the double installation of the grating and the ordering device when the conventional water supply device such as document (2) is installed and used at the ventilation opening of the subway.

In addition, conventional grating and ordering devices such as Literature (1) and (2) have a problem that it is difficult to achieve the functions of grating and ordering devices by being easily installed at the ventilation opening of the subway. If the configuration is damaged, it is difficult to achieve easy maintenance and repair by replacing only the damaged part.

(1) Korean Patent Application Publication No. 10-2005-0015310 (2005.02.21) (2) Korean Patent Registration No. 10-1343082 (2013.12.12)

The present invention has been devised to solve the above-described problems, and the object of the present invention is as follows.

First, it is possible to provide a grating structure having the function of the ordering device.

Second, to prevent flooding of subway vents, it is not necessary to install a grating and a water shielding device at the same time, and only the installation of gratings can prevent flooding of subway vents.

Third, it is possible to easily seal the lower end of the partition wall through the configuration of a wing plate installed between the partition walls of the grating without a complicated configuration, thereby ensuring high economic efficiency compared to the installation cost.

Fourth, it is possible to achieve easy installation at the subway vent, so that a stable working process can be achieved regardless of the environment or location to be installed.

Fifth, even if any component is damaged during use, the damaged part can be conveniently replaced and stable use can be achieved, and maintenance and repair costs can be reduced accordingly.

In order to achieve the above object, the present invention includes a front frame, a rear frame installed to face the front frame, a left side frame and a right side frame installed to connect ends of the front frame and the rear frame, and the front In the grating comprising a plurality of partition bars installed to connect the frame and the rear frame, and a connection bar coupled to an upper end of the partition bar to form a plurality of partition spaces inside the partition bar, the front frame is It includes a plurality of upper guide holes formed, and a long lower guide hole formed in a lower longitudinal direction apart from the upper guide hole, and is installed to be flowable through a connector on one side of the right side frame and the partition bar, and the front frame And upper and lower portions facing the rear frame may be configured by combining an upper protrusion penetrating through the upper guide hole and a wing plate having a lower protrusion penetrating through the lower guide hole protruding.

At this time, in the front frame, a plurality of insertion holes to which the upper protrusions are coupled are formed in a longitudinal direction, and an upper guide bar coupled to connect a plurality of upper protrusions exposed to the upper guide hole, and a fixing hole to which the lower protrusion is coupled are formed in the longitudinal direction. A plurality of lower guide bars may be provided and configured to connect the plurality of lower protrusions exposed through the lower guide hole.

In addition, the left side frame may be configured to be provided with an operation unit connected to control the movement of the upper guide bar and the lower guide bar.

In addition, the operation unit is installed on the inside of the installation frame to be spaced apart from the lower end of the'L'-shaped installation frame, the installation frame, the rotation motor provided on the inside of the installation frame, A first connecting line connected to the end of the lower guide bar by winding the other end around the connecting roller and the other end being wound on the connecting roller, the connecting roller installed in the front of the front frame, and the rotating roller One end is connected to and the other end may be configured to include a second connection line connected to the end of the lower guide bar.

In addition, a plurality of reinforcing bars may be further installed and configured to connect the left side frame and the right side frame at a lower end of the partition bar facing the connection bar.

In addition, the connector is formed to extend to be bent to one side of the upper coupling portion and the upper coupling portion coupled to surround the upper surface of the right side frame and the partition bar, and an extension portion formed to surround the upper surface of the wing plate, and one side of the extension portion It is bent in a downward direction and is formed to extend in a downward direction may be configured to include a side fastener in close contact with the side of the wing plate.

Meanwhile, the connector may be formed of a leaf spring.

In addition, when the upper protrusion and the lower protrusion are coupled between the upper and lower guide bars, an insertion hole is further formed in the upper protrusion and the lower protrusion, and a fixing bolt is further coupled to the insertion hole.

In addition, a plurality of connection holes are further formed in the longitudinal direction of the upper surface of the right side frame and the partition bar, and the wing plate further has a plurality of fastening holes in the side length direction, and the connection hole and fastening in the upper coupling hole and the side fixing member The assembly hole corresponding to the ball may be further formed and configured.

The present invention as described above can obtain the following effects.

First, it is possible to provide a grating structure having a function of the ordering device.

Second, it is not necessary to install a grating and a water shielding device at the same time to prevent flooding of the subway vents, and only the installation of the grating can prevent the subway vents from flooding.

Third, it is possible to easily seal the lower end of the partition wall through the wing plate configuration installed between the partition walls of the grating without a complicated configuration, thereby ensuring high economic efficiency compared to the installation cost.

Fourth, it is possible to achieve a stable working process regardless of the environment or location to be installed by allowing easy installation at the subway vent.

Fifth, even if any component is damaged during use, the damaged part can be conveniently replaced and stable use can be achieved, and maintenance and repair costs can be reduced accordingly.

1 is an exploded perspective view showing the present inventors ventilating order grating.
Figure 2 is a perspective view showing the present inventors ventilating order grating.
Figure 3 is a perspective view showing a partition bar and a wing plate coupling state of the present inventors vent order grating.
Figure 4 is a perspective view of the main part showing a state in which the upper guide bar and the lower guide bar are coupled to the wing plate of the ventilator order grating according to the present invention.
Figure 5 is a perspective view of the main part showing a state in which the upper and lower guide bars are coupled to the wing plate according to the present invention.
Figure 6 is a front view showing the present inventors ventilating order grating.
Figure 7 is an enlarged cross-sectional view of the main part showing the combined state of Figure 6;
Figure 8 is a front view showing an operating state of the present inventors ventilating order grating.
Figure 9 is an enlarged cross-sectional view of the main part showing the operating state of Figure 8;
Figure 10 is a front view showing an installation state of the present inventors ventilating order grating.
11 is a perspective view showing another coupling state of the partition bar and the wing plate of the present inventors vent order grating.
Figure 12 is a perspective view showing a reinforcing bar coupling state of the present inventors vent order grating.

The terms or words used in the specification and claims are not to be construed as being limited to their usual or dictionary meanings, but'inventors should appropriately define the concept of terms in order to explain their own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle of'can be'.

In addition, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, so that they can be replaced at the time of application It should be understood that there may be various equivalents and variations.

And in the description of the vent order grating according to the present invention, the front is the part where the coupling is made in the direction of the upper guide bar coupled to one surface of the front panel, and the rear is the direction of the front panel coupled to one surface of the upper guide bar. It will be described by naming the site where the bonding is made as rear.

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

The present invention is a front frame 10, a rear frame 20 that is spaced apart from the front frame 10, and a left side installed to connect the ends of the front frame 10 and the rear frame 20 The frame 30 and the right side frame 40, a plurality of partition bars 50 installed to connect the front frame 10 and the rear frame 20, and the upper end of the partition bar 50 to divide In the grating including the connecting bar 55 forming a plurality of partition spaces 50S inside the bar 50, the front frame 10 has a plurality of upper guide holes 11 formed in the upper length direction And, it includes an elongated lower guide hole 12 formed in the lower longitudinal direction to be spaced apart from the upper guide hole 11, and a connector 90 on one side of the right side frame 40 and the partition bar 50 It is installed to be flowable through the front frame 10 and the upper and lower portions facing the rear frame 20, an upper protrusion 61 penetrating through the upper guide hole 11, and the lower guide hole 12 ) And the lower protrusion 62 that is coupled through the wing plate 60 is formed to protrude.

1 and 2, the left side frame 30 and the right side frame 40 are connected to the ends in the longitudinal direction in order to form a grating structure forming a rectangular box shape, as shown in FIGS. It is combined to be located in front of ).

At this time, the front frame 10 is configured by forming a plurality of upper guide holes 11 as shown in FIGS. 1 and 4 shown in the upper longitudinal direction, and the upper guide hole 11 and the lower longitudinal direction The elongated lower guide hole 12 is formed in the longitudinal direction of the lower end to be spaced apart.

The upper guide hole 11 is formed to form an elongated shape in the vertical direction, as shown in FIG. 4, which, the upper protrusion 61 of the wing plate 60 to be described in detail below is the upper guide hole 11 ) Is configured to be guided in the up and down directions along the upper guide hole 11 in a coupled state to be inserted.

To explain this configuration in more detail, the upper protrusion 61 of the wing plate 60 is inserted into the upper guide hole 11 of the front frame 10, and the wing plate 60 is inserted into the lower guide hole 12. By being coupled so that the lower protrusion 62 is inserted, the wing plate 60 is coupled to the upper guide hole 11 and the lower guide hole 12 of the front frame 10 as shown in FIGS. 6 and 7 In this state, the upper protrusion 61 is guided in the downward direction of the upper guide hole 11 as shown in FIGS. 8 and 9 according to the user's adjustment, and is coupled to the lower guide hole 12. The lower protrusion 62 is guided in the direction of the left side frame 30 so that the installed position of the wing plate 60 can be changed.

In addition, the wing plate 60 is configured by having the upper protrusion 61 and the lower protrusion 62 on upper and lower surfaces opposite to the front frame 10, as described above, and FIG. 1 , As shown in FIGS. 3, 7 and 10, the front frame 1 and the rear frame 20 are installed to be connected to the partition bar 50 to allow flow through the connector 90.

For example, as shown in FIGS. 3 and 7, the wing plate 60 is installed to be flowable through the connector 90 to one side of the partition bar 50, so that the partition bar 50 is The flow as shown in FIG. 9 is possible from one side, so that the lower ends of the plurality of partition spaces 50S formed in the grating can be sealed with the wing plate 60.

That is, as in FIGS. 2 and 7, the front frame 10, the rear frame 20, the left side frame 30, and the right side frame 40 are combined, and the front frame 10 and the rear A plurality of partition bars 50 and connection bars 55 are arranged and installed to form a lattice shape inside the frame 20, and a plurality of partition spaces inside the connection portion of the front frame 10 and the rear frame 20 (50S) is configured to be formed, the wing plate 60 is a plurality of partition bars 50 arranged to connect the front frame 10 and the rear frame 20, as in FIGS. 3 to 9, By being configured to be fluidly coupled through the configuration of the connector 90, the lower part of the partition space 50S is sealed in a state in close contact with one surface of the partition bar 50 as shown in FIG. 10 according to the user's control. It is flowable so that the lower part of the plurality of partition spaces 50S formed inside the grating can be easily sealed.

Meanwhile, the front frame 10 includes an upper protrusion 61 exposed to the front of the front frame 10 after being coupled to the upper guide hole 11 of the front frame 10 as shown in FIGS. 4 and 5. A lower guide bar 72 that connects the upper guide bar 71 to be connected and the lower protrusion 62 which is coupled to the lower guide hole 12 of the front frame 10 and exposed to the front of the front frame 10 It is equipped and configured.

As shown in FIGS. 4 to 7, the upper guide bar 71 has a long bar shape, and a plurality of insertion holes 71a to which the upper protrusions 61 are coupled are formed in the longitudinal direction, Through this configuration, a plurality of upper protrusions 61 exposed to the upper guide hole 11 of the front frame 10 cover the front surface of the upper guide hole 11 in a state inserted into the insertion hole 71a. It is configured to be coupled to the front frame (10).

In this configuration, a plurality of wing plates 60 are installed through the configuration of a connector 90 to a plurality of partition bars 50 installed inside the grating, and the upper protrusion 61 of the wing plate 60 is front In the case of being configured to be exposed to each of the upper guide holes 11 of the frame 10, the upper protrusions 61 of the blade plate 60 exposed through the upper guide holes 11 are attached to the upper guide 71 As shown in FIGS. 4 to 7, each connected to the formed insertion hole 71a, and according to the flow of the upper guide bar 71, the upper portion of the plurality of wing plates 60 provided with the upper protrusions 61 It is configured to flow in the direction of the upper guide hole 11 formed in the front frame 10 at the same time.

In addition, the lower guide bar 72 forms a bar shape of a long direction, as in FIGS. 4 to 7, and a plurality of fixing holes 72a to which the lower protrusions 62 are coupled are formed in the longitudinal direction. , The front frame 10 so as to cover the front of the lower guide hole 12 in a state in which a plurality of lower protrusions 62 exposed through the lower guide hole 12 of the front frame 10 are inserted into the fixing hole 72a. ) Is configured to be combined on the front.

That is, a plurality of wing plates 60 are installed through the configuration of a connector 90 to a plurality of partition bars 50 installed inside the grating, and the lower protrusion 62 of the wing plate 60 is front When the frame 10 is configured to be exposed to each of the lower guide holes 11, the lower protrusions 62 of the blade plate 60 exposed through the lower guide hole 12 are attached to the lower guide 72. As shown in FIGS. 4 to 7, each of the formed fixing holes 72a is connected to each other, so that the lower part of the plurality of wing plates 60 provided with the lower protrusions 62 according to the flow of the lower guide bar 72 is the front frame It will be able to flow simultaneously in the direction of the lower guide hole 12 formed in (10).

In particular, the upper guide bar 71 and the lower guide bar 72 described above flow simultaneously according to the user's control in a state coupled to the front of the front frame 10 as shown in FIGS. 5 to 9. By being configured so that, according to the flow of the upper guide bar 71 and the lower guide bar 72, the wing plate 60 installed through the connector 90 to the partition bar 50 is installed in the same installation state as in FIG. 7 or 9 Through this configuration, a plurality of partition spaces 50S formed inside the grating may be opened or closed through the wing plate 60.

In addition, as shown in FIG. 5, the upper protrusion 61 and the lower protrusion 62 are further formed with insertion holes 61a and 62a, and the insertion holes 61a and 62a have a fixing bolt (P) Is further combined.

This configuration is to achieve the combination of the upper protrusion 61 and the lower protrusion 62, the upper guide bar 71 and the lower guide bar 72, the upper guide bar 71 and the lower guide bar 72 ) Is to be firmly coupled to one side of the wing plate 60, and if necessary, to facilitate the separation of the wing plate 60 and the upper guide bar 71 and the lower guide bar 72 .

In addition, the left side frame 30 is configured to be provided with an operation unit 80 to control the movement of the upper guide bar 71 and the lower guide bar 72.

As shown in FIGS. 1, 2, and 6, the operation unit 80 includes an installation frame 81 having a'L' shape coupled to one side of the left side frame 30, and the installation frame 81 ), a rotary motor 82 provided on the inside of the rotary motor 82, a rotary roller 83 installed inside the installation frame 81 to be spaced apart from the lower end of the rotary motor 82, and installed on the front of the front frame 10 And a first connection line 85 connected to the end of the lower guide bar 72 by being wound around the connection roller 84 and the other end connected to the rotary motor 82 and , It is configured to include a second connection line 86, one end is connected to the rotary roller 83, the other end is connected to the end of the lower guide bar (72).

At this time, the rotary motor 82, the rotary roller 83, the connection roller 84, the first connection line 85, and the second connection line 86 are conventional rotary motors, rotary rollers, connection rollers, connection lines and their functions. And as the configuration is the same, a detailed description thereof will be omitted.

However, in the present invention, the rotation motor 82 uses a motor capable of forward and reverse rotation so that the first connection line 85 and the second connection line 86 can be selectively pulled through the rotation of the rotation motor 82. It is desirable to do.

According to the above configuration, when the rotation motor 82 is rotated to pull the first connection line 85, as shown in FIG. 8, the end of the lower guide bar 72 connected to the first connection line 85 is the front frame Along the lower guide hole 12 formed in (10), it moves in the direction of the left side frame 30, and at the same time, the lower protrusion 62 of the wing plate 60 connected to the lower guide bar 72 is also shown. As shown in 9, in a state in which one surface is in close contact with the partition bar 50, the lower end moves in the direction of the left surface frame 30, and is in close contact with the surface opposite to the partition bar 50, so that the lower end of the partition space 50S It is to seal it.

At this time, as described above, when the lower guide bar 72 moves according to the rotation of the rotary motor 82, the upper guide bar 71 installed in the front of the front frame 10 is an upper guide. It moves simultaneously along the ball (11).

In addition, when the rotation motor 82 is rotated to pull the second connection line 86, as in FIG. 8, the upper guide bar 71 and the lower guide bar 72 are positioned as shown in FIG. By being moved to the same state, the wing plate 60 installed on the partition bar 50 flows in a state in close contact with one side of the partition bar 50 as shown in FIG. 8, so that the lower portion of the partition space 50S is opened. It is achieved.

As described above, by controlling the movement of the first connection line 85 or the second connection line 85 by the user controlling the rotation of the rotary motor 82, each of the blade plates 60 installed on the partition bar 50 ) Can flow as in FIG. 7 or 9.

In addition, as in FIGS. 7, 9 and 12, a plurality of reinforcements to connect the left side frame 30 and the right side frame 40 at the lower end of the partition bar 50 facing the connection bar 55 The bar 56 is further installed and configured.

As shown in FIG. 9, when the reinforcing bar 56 is to block water penetrating into the partition space 50S with the wing plate 60, the lower end of the wing plate 60 is To achieve a state in contact with the upper surface, to prevent damage to the wing plate 60 due to the water pressure of water.

On the other hand, the connector 90 is a wing plate 60 is coupled to flow to one surface of the partition bar 50, as shown in Figs. 3 and 7, 7 and 9, the right side frame 40 and the partition An upper coupling unit 91 coupled to surround the upper surface of the bar 50, and an extension unit formed to be bent to one side of the upper coupling unit 91 to surround the upper surface of the wing plate 60 ( 92), and a side fastener 93 that is bent to one side of the extension tool 92 and is formed to extend in a downward direction and is in close contact with the side of the wing plate 60.

At this time, the connector 90 is a configuration capable of guiding the flow of the wing plate 60 to the one side of the partition bar 50 and one side of the right side frame 40 so that the wing plate 60 can flow. If so, it can be changed in various ways according to the user's selection, and in the present invention, a leaf spring is applied as an embodiment.

In addition, as shown in FIG. 11, a plurality of connection holes 40a, 50a are further formed in the longitudinal direction of the upper surface of the right side frame 40 and the partition bar 50, and the wing plate 60 is a side surface A plurality of fastening holes 60a are further formed in the longitudinal direction, and assembly holes corresponding to the connection holes 40a and 50a and the fastening holes 60a in the upper coupling hole 91 and the side fixing hole 93 ( 91a, 93a) are further formed and configured.

This configuration is to make the coupling of the wing plate 60 to one surface of the right side frame 40 and the partition bar 50 more robustly, and this configuration may be deleted and made according to the user's convenience.

Although the present invention has been illustrated and described with reference to specific embodiments, it is understood in the art that the present invention can be variously improved and changed without departing from the spirit or scope of the present invention provided by the following claims. It will be obvious to those of ordinary skill.

10: front frame 11: upper guide hole
12: lower guide hole 20: rear frame
30: left side frame 40: right side frame
40a,50a: connector 50: block bar
50S: compartment 55: connecting bar
56: reinforcing bar 60: wing plate
60a: fastening hole 61: upper protrusion
61a, 62a: insertion hole 62: lower protrusion
71: upper guide bar 71a: insertion hole
72: lower guide bar 72a: fixing hole
80: operation part 81: installation frame
82: rotary motor 83: rotary roller
84: connecting roller 85: first connecting line
86: second connection line 90: connector
91: upper fitting 91a, 93a: assembly hole
92: extension tool 93: side fixing tool
G: Building P: Fixing bolt

Claims (9)

A front frame 10, a rear frame 20 installed to face the front frame 10, and a left side frame 30 installed to connect ends of the front frame 10 and the rear frame 20 ) And the right side frame 40, a plurality of partition bars 50 installed to connect the front frame 10 and the rear frame 20, and the partition bar 50 by being coupled to the upper end of the partition bar 50 In the grating including a connection bar 55 forming a plurality of partition spaces 50S inside of ),
The front frame 10 includes a plurality of upper guide holes 11 formed in an upper longitudinal direction, and a long lower guide hole 12 formed in a lower longitudinal direction spaced apart from the upper guide holes 11, ,
One side of the right side frame 40 and the partition bar 50 is installed to be movable through a connector 90, and the upper and lower portions facing the front frame 10 and the rear frame 20 have the upper guide hole Vent order grating, characterized in that the upper protrusion 61 through which is connected to (11) and the wing plate 60 through which the lower protrusion 62 through which the lower guide hole 12 is protruded is formed.
The method of claim 1,
In the front frame 10, a plurality of insertion holes 71a to which the upper protrusions 61 are coupled are formed in the longitudinal direction to connect the plurality of upper protrusions 61 exposed to the upper guide hole 11 The upper guide bar 71 and the plurality of fixing holes 72a to which the lower protrusions 62 are coupled are formed in the longitudinal direction to connect the plurality of lower protrusions 62 exposed to the lower guide hole 12 Ventilation order grating, characterized in that the lower guide bar 72 is provided and configured.
The method of claim 2,
Vent order grating, characterized in that the left side frame (30) is provided with an operation unit (80) connected to control the movement of the upper guide bar (71) and the lower guide bar (72).
The method of claim 3,
The operation unit 80 is
An installation frame 81 having a'L' shape coupled to one side of the left side frame 30,
A rotary motor 82 provided inside the installation frame 81,
A rotary roller 83 installed inside the installation frame 81 to be spaced apart from the lower end of the rotary motor 82,
A connection roller 84 installed on the front of the front frame 10,
A first connection line 85 connected to the end of the lower guide bar 72 by one end connected to the rotary motor 82 and the other end wound around the connection roller 84,
And a second connection string (86) having one end connected to the rotary roller (83) and the other end connected to the end of the lower guide bar (72).
The method of claim 1,
At the lower end of the partition bar 50 facing the connection bar 55
Vent order grating, characterized in that a plurality of reinforcing bars (56) are further installed to connect the left side frame (30) and the right side frame (40).

The method of claim 1,
The connector 90 is
An upper coupling unit 91 coupled to surround the upper surface of the right side frame 40 and the partition bar 50,
An extension part 92 formed to be bent to one side of the upper coupling part 91 to surround the upper surface of the wing plate 60,
Ventilation opening order grating, characterized in that it comprises a side fixture (93) that is bent to one side of the extension (92) and extends in a downward direction so as to be in close contact with the side of the wing plate (60).
The method of claim 1 or 6,
The connector 90 is a ventilation opening order grating, characterized in that formed of a leaf spring.
The method of claim 1,
When the upper protrusion 61 and lower protrusion 62 and the upper guide bar 71 and the lower guide bar 72 are combined,
Inserting holes 61a and 62a are further formed in the upper protrusion 61 and the lower protrusion 62,
Vent order grating, characterized in that the fixing bolt (P) is further coupled to the insertion hole (61a, 62a).
The method of claim 6,
A plurality of connection holes 40a and 50a are further formed in the longitudinal direction of the upper surface of the right side frame 40 and the partition bar 50,
The wing plate 60 is further formed with a plurality of fastening holes 60a in the side length direction,
The upper coupling hole 91 and the side fixing hole 93, the connecting hole (40a, 50a) and the assembly hole (91a, 93a) corresponding to the fastening hole (60a) is further formed, characterized in that the ventilation hole order grating.

Images