KR20190025355A - Hot water heating panel - Google Patents

Abstract

The present invention relates to a hot water panel for heating installed in the wall or floor of a house or indoor facility and used as a heating material using radiation heat with a heat medium flowing thereinto. The present invention includes a heat accumulation plate formed in the shape of a housing open downward by a plate corner being bent downward and having an accommodating space therein, a fixing bracket disposed to surround the side of the heat accumulation plate, a hot water flow path inserted into the accommodating space and provided such that an end protrudes to the outside of the fixing bracket, an insulating material inserted into the accommodating space with the hot water flow path below the heat accumulation plate, and a finishing plate seated on the upper surface of the heat accumulation plate. The heat accumulation plate is formed by being bent into the shape of an octagonal groove plate provided with four sides in the front, rear, left, and right and inclined planes provided at four corners. The fixing bracket is formed to surround one inclined plane adjacent to one side. The four fixing brackets are connected to surround the side of the heat accumulation plate. The hot water panel for heating installed on the floor surface for indoor heating in a residential building is directly installed with a hot water conduit, and thus no hot water conduit needs to be separately installed, installation is facilitated, and heat can be transferred with high efficiency.

Description

Hot water heating panel {HOT WATER HEATING PANEL}

The present invention relates to a hot water panel for heating, and more particularly, to a hot water panel for heating installed on a floor for indoor heating of a residential building, a hot water pipe is directly formed, The present invention relates to a hot water panel for heating, which is assembled by sequentially arranging the hot water panels.

Generally, as an indoor heating structure of a residential building, a heating construction structure in which an excel pipe is installed above a concrete slab floor of a building and buried in mortar to circulate the hot water of the heating oil chain to the inside of the excel pipe is used. And the horizontal level of the pipe through which the hot water circulates can not be accurately constructed. Therefore, the air layer generated inside the hot water pipe during use can not flow out to the outside according to the circulation of the hot water and stagnates at a certain position, There is a problem in that it is inconvenient to remove the concrete after removing all the flooring materials such as flooring or wood panel used as a floor finishing material such as a room or a living room in repairing the floor heating.

Of course, in order to solve these problems, an Ondol panel having a hot water pipe inside the panel is newly formed so as to have ease of operation and simple structure when heating the floor, so that the Ondol panel and the Ondol panel are connected Floor heating, but also the floor of the concrete slab of the building is installed with the Ondol panel, the other part of the panel and the corresponding part of the panel is applied with the finishing mortar, and the flooring such as the floor board or the floor board is laid on the upper surface .

However, there is also a problem that the hot water pipe must be installed in the ondol panel, and the thermal efficiency through the circulation of the hot water through the hot water pipe is not achieved properly, resulting in a decrease in thermal efficiency.

In order to solve such a problem, in the prior art, a plurality of hot water panels are connected to a concrete floor of a building in order to increase heating efficiency, and a hot water pipe is installed in an insertion groove formed on the upper surface of the hot water panel .

As a hot water panel having an insertion groove for installing the hot water pipe for heating, there are a "hot floor panel for the floor" of the Korean Registered Utility Model No. 20-0165359 and a hot water heating pipe installation member of the Korean Registered Utility Model No. 20-0461499 And Korean Patent Laid-Open No. 10-2016-0069169 entitled "Hot Water Panel for Heating"

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a hot water heating panel for heating a residential building, And to provide an excellent heating-use hot water panel.

In order to accomplish the above object, the present invention provides a heating water heating panel installed on a wall or a floor of a house and an indoor facility and used as a heating material using radiant heat by introducing a heating medium into the interior, And a fixing bracket disposed to surround the side surface of the heat storage plate. The fixing bracket is inserted into the accommodation space and has an end protruded to the outside of the fixing bracket. And a finishing plate which is seated on an upper surface of the heat storage plate, wherein the heat storage plate is provided at a front side and a rear side of the heat storage plate, And is bent in the shape of an octagonal trough having four side surfaces and an oblique surface provided in four ears, Is formed to enclose a single bevel and the adjacent one of the side, it characterized in that the four fixing brackets is installed is connected to surround the sides of the heat storage plate.

According to the present invention, it is preferable that a plurality of fixing bracket fastening holes are formed on the side surface of the heat storage plate, and fastening protrusions corresponding to the fixing bracket fastening holes are provided on the inner side surface of the fixing bracket.

The fixing bracket is provided with fixing holes corresponding to the hot water passage fixing grooves, and the hot water passage includes a heat generating tube disposed inside the accommodation space, And a fixing fitting, which is connected to both ends of the heat generating tube and fixed to the fixing hole in a fixed manner.

The heating tube includes a first heating tube bent into a zigzag shape so as to heat the regenerating plate as a whole, and a second linear heating tube discharging hot water discharged to the outside, wherein the fixing bracket And the fixing holes are formed in a pair so that the ends of the first and second heat generating tubes are connected to each other.

In addition, the heating hot water panels according to the present invention are continuously arranged in the longitudinal direction and the width direction, and adjoining oblique surfaces are combined to provide a rhombus-shaped installation space. In order to connect the hot water channels provided in the respective heating hot water panels, A fixing pipe protruding into the space of the installation space, a connection pipe formed by a bellows pipe connecting the fixing fittings of the hot water panel arranged adjacent to the bellows and being expandable and contractible, and a fastening member for fastening both ends of the connection pipe to the end of the fixing fitting. .

The cover panel is provided with a cover panel covering the upper portion of the installation space. The cover panel has a stepped portion protruding outward from the fixing bracket surrounding the oblique surface and having a cover panel fastening hole formed therein. It is preferable that a corresponding cover panel fixing protrusion is provided so as to coincide with the upper surface of the cover panel and the upper end of the fixing bracket.

In addition, a plurality of cover panels are provided on the installation space portion arranged at predetermined intervals, and at least one of the installation space portions is provided with a storage portion therein, a plurality of pores are formed on the upper portion, It is preferable that a fragrance case is provided.

In addition, there is provided a fixed panel having four fixing protrusions formed of a rectangular plate and protruding in a vertical direction on the upper surface so that the heating hot water panel is fixed to the floor while being continuously arranged in the longitudinal direction and the width direction And a shielding plate protruding outward from a lower end edge of the fixing bracket surrounding the oblique surface to shield the bottom surface of the installation space. The shielding plate is fixed to the bottom surface of the shielding plate shielding the bottom surface of the installation space by being adjacently combined, It is preferable that a fixing projection insertion hole into which the fixing panel insertion groove and the fixing projection corresponding to the panel are inserted is formed.

As described above, according to the present invention, since the hot water duct is directly formed on the heating hot water panel installed on the floor for indoor heating of residential buildings, it is not necessary to separately install the hot water pipe, so that the hot water panel for heating can be easily installed and excellent in heat transfer efficiency .

1 is an external perspective view of a hot water heating panel according to the present invention.
2 is a schematic view showing the combination of the heat storage plate and the fixing bracket according to the present invention.
FIG. 3 is an exploded perspective view of a hot water heating panel according to the present invention.
4 is a schematic view showing the bonding of the heat insulator according to the present invention
5 is a schematic view showing an installation space according to the present invention;
Figure 6 is a schematic diagram illustrating the installation of a connector according to the present invention;
7 is a schematic view showing the cover panel being coupled to an upper part of the installation space according to the present invention;
8 is a bottom perspective view of a cover panel according to the present invention.
9 is a schematic view showing the installation of the fragrance case according to the present invention
Fig. 10 is a schematic view showing the connection of a fixed panel according to the present invention
11 is a bottom perspective view of Fig. 10,

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

2 is a schematic view showing the combination of a heat accumulating plate and a fixing bracket according to the present invention, FIG. 3 is an exploded perspective view of a heating hot water panel according to the present invention, and FIG. 4 is a schematic view showing the connection of the heat insulating material according to the present invention, FIG. 5 is a schematic view showing an installation space according to the present invention, FIG. 6 is a schematic view showing a connection pipe according to the present invention, FIG. 8 is a bottom perspective view of a cover panel according to the present invention, FIG. 9 is a schematic view showing the installation of a fragrance case according to the present invention, and FIG. 10 is a cross- 11 is a bottom perspective view of the fixing panel according to the present invention.

The present invention relates to a hot water heating panel (100) used as a heating material using radiant heat by being installed on a wall or a floor of houses and indoor facilities and introducing a heating medium into the interior.

The present invention relates to a heat storage device comprising a heat storage plate (10) formed by bending a corner of a plate material in a downward direction and having a lower open shape and having a housing space (11) therein, A bracket (20), a hot water passage (30) inserted into the accommodation space and provided at an end thereof so as to protrude to the outside of the fixing bracket, and a heat insulating member (30) inserted into the accommodation space together with the hot water passage (40), and a finishing plate (50) that is seated on the upper surface of the heat storage plate (10).

The heat storage plate 10 is formed of a metallic material and is bent in a downward direction to form a housing having a lower opening.

The fixing bracket 20 is fixed to surround the side of the heat storage plate 10.

The hot water channel 30 is inserted into the accommodation space part 11 and the end part protrudes outward from the fixing bracket 20.

The heat insulating material 40 is inserted from the lower part of the heat storage plate 10 into the accommodation space part 11 together with the hot water flow path 30.

The finishing plate 50 is preferably formed of wood or a synthetic resin material which is seated on the upper surface of the heat storage plate 10 and has a pattern printed on the surface thereof or a pattern embossed or embossed.

Therefore, when the heating medium flows along the hot water flow path to generate radiant heat, the heat storage plate 10 of the metal material absorbs heat and radiates heat to the upper portion through the finishing plate so that it can be used as a heating material for houses and facilities will be.

As shown in FIG. 2, the heat storage plate 10 is formed by bending in the shape of an octagonal trough having four side surfaces 12 provided on the front, rear, right and left sides, and an oblique surface 13 provided on four ears, The brackets 20 are formed so as to surround one side surface 12 and one neighboring oblique surface 13 so that the four fixing brackets 20a, 20b, 20c and 20d surround the side surfaces of the heat storage plate 10. [ And are connected and installed.

That is, the heat storage plate 10 is formed in a shape of a metal body plate, and the lower side thereof is open. The side plates 12 and the obliques 13 are provided on the front and rear sides and the right and left sides. And is formed in the shape of an octagonal trough with an open bottom.

The fixing bracket 20 is formed to surround one side surface 12 and one side surface 12 of the heat storage plate 10 and four fixing brackets 20a and 20b , 20c and 20d are connected to each other so as to surround the side of the heat storage plate 10 in a single set.

A plurality of fixing bracket fastening holes 14 are formed on the side surface 12 of the heat storage plate 10 and fastening protrusions 21 corresponding to the fixing bracket fastening holes are formed on the inner side surface of the fixing bracket 20 .

That is, a plurality of fixing bracket fastening holes 14 are formed at predetermined intervals in the lateral direction 12 provided on the front, back, left and right sides of the heat storage plate 10,

The fixing bracket 20 is provided with a fastening protrusion 21 at a position corresponding to the fixing bracket fastening hole on the close contact surface of the fixing bracket and the heat storage plate.

The fastening protrusion 21 is provided with a cutout groove of a '+' shape and is resiliently fitted and fixed by the fastening bracket 14, and a hook is provided on the outer circumference of the fastening protrusion so as to prevent the fastening protrusion .

Therefore, according to the present invention, the user can fix the fixing bracket 20 to the side of the heat storage plate 10 by squeezing from the side so as to insert the fastening protrusion 21 into the fixing bracket fastening hole 14, And the brackets 20 are connected to one another in a continuous manner so as to surround the sides of the heat collecting plate 10 having a lower opening.

3, the beveled surface 13 is provided with a hot water passage fixing groove 15 in which the end of the hot water passage 30 protrudes, and the fixing bracket is provided with a fixing hole The hot water channel 30 is connected to both ends of the heat generating tube 31 and is connected to the fixing hole 22 And a fixing fitting 32 which is fixedly attached to the upper end of the fixed fitting 32.

That is, a hot water passage fixing groove 15 communicating in a downward direction is provided on the oblique surface 13 provided at four ears of the heat storage plate 10, and the fixing bracket 20 is provided with the hot water passage fixing groove 15 And a fixing hole 22 is provided at a corresponding position.

The hot water passage 30 includes a heat generating tube 31 disposed inside the housing space 11 of the heat accumulating plate 10 and connected to both ends of the heat generating tube 31, And a fixing fitting 32 fixedly attached to the upper and lower portions 22 and 22.

The heating tube 31 bent into the accommodation space 11 is inserted into the heat storage plate 10 and the fixing bracket 20 and the fixing hole 22 The fixing pipe 32 is inserted into the end portion of the end of the heating pipe 31 and fixedly installed.

The other end of the fixing fitting 32 protrudes from the fixing bracket 20 and is fixed to the fixing bracket 20 so that the heating tube 31 and the fixing bracket 20, The hot water passage 30 is inserted into the receiving space 11 and the end portion of the hot water passage 30 is protruded to the outside of the fixing bracket 20 and fixedly installed.

The heating tube 31 includes a first heating tube 311 bent in a zigzag shape so as to heat hot the heating tube 10 as a whole and a second heating tube 311 in which cold water is discharged to the outside, The fixation holes 22 formed in the fixing bracket 20 are formed as a pair 22a and 22b and are connected to the first and second heat generating tubes 311 and 312, It is preferable that the end portions are connected.

That is, the heat-generating tube 31 preferably includes a first heat-generating tube 311 bent in a zigzag shape, and a second heat-generating tube 312 in which the circulated cold water is discharged to the outside.

It is preferable that the fixing holes 22 for fixing both end portions of the first heat generating tube 311 and the second heat generating tube 312 to the fixing bracket 20 are formed as a pair 22a and 22b Also, it is preferable that a pair of hot water passage fixing grooves 15 corresponding to the fixing holes 22 are also provided.

3 and 4, the heat insulating material 40 is disposed on the upper surface thereof with a hot water passage receiving groove 41 into which the hot water passage 30 is inserted to surround the hot water passage 30 And is inserted from the lower part of the heat storage plate 10 into the accommodation space part 11 together with the hot water flow path 30. [

A plurality of supports (not shown) for supporting the bottom and bottom surfaces of the heat storage plate 10 at predetermined intervals are provided inside the heat insulation member 40 so that the heat storage plate 10 can correspond to the pressure applied from the top ).

The heat insulating material 40 is inserted inward from the lower part of the accommodation space 11 of the heat storage plate 10 so that the lower end of the heat insulating material 40 is preferably inserted into the lower end of the fixing bracket 20 So that even when a load or an impact is generated in the upper portion of the heat storage plate 10, the heat insulating material 40 absorbs the impact, so that the noise is not transmitted to the lower layer.

As shown in FIGS. 5 and 6, the hot water panels for heating according to the present invention are continuously arranged in the longitudinal direction and the width direction, and adjoining oblique surfaces are combined to provide a rhombus-shaped installation space portion 33, A fixed fitting 32 protruding into the installation space is connected to a fixing fitting 32 'of a hot water panel disposed adjacent to the installation space so that the hot water passage provided in the heating hot water panels 100 and 100' A connection pipe 34 formed by a corrugated pipe and a fastening member 35 for fastening both ends of the connection pipe 34 to the ends of the fixing fittings 32 and 32 '.

That is, the heating hot water panel 100 according to the present invention is continuously installed in the longitudinal direction and the width direction at the wall or floor of a house and an indoor facility. At this time, the adjoining beveled surfaces 13a, 13b, 13c, And is provided with a mounting space portion 33 in the form of a rhombus.

The connection pipe 34 is connected to the fixing fitting 32 protruding into the installation space portion 33 so that the hot water flow path provided in the heating hot water panels 100 and 100 ' And a fixing pipe 32 'of the fixing member 100', and is preferably formed of a flexible pipe capable of expansion and contraction.

The fastening member 35 fastens both end portions of the connection pipe 34 to the fixing fittings 32 and 32 'and is fixed to the fixing fittings 32 And a fastening member for fastening the fastening protrusion to the screw of the fastening protrusion after inserting the connection pipe to surround the outside of the fastening fitting formed with the fastening screw is fastened to the end of the fastening pipe.

7 and 8, a cover panel 60 is provided to cover the upper portion of the installation space portion 33. The cover panel 60 protrudes outward from the fixing bracket 20 surrounding the oblique surface 13, And a cover panel fixing protrusion 61 corresponding to the cover panel fixing hole 24 is provided on the bottom surface of the cover panel 60, It is preferable that the upper surface of the cover panel 60 and the upper end of the fixing bracket 20 coincide with each other.

That is, a step 23 having a cover panel fastening hole 24 is protruded from the inside of the fixing bracket 20 surrounding the beveled surface 13, And a cover panel fixing protrusion 61 corresponding to the cover panel fastening hole 24 is provided on the bottom surface of the cover panel fastening hole 24 So as to be fixedly installed.

In addition, it is preferable that the upper surface of the cover panel 60 and the upper end of the fixing bracket 20 are made to coincide with each other so that inconvenience of the user living in the room of the building is not generated.

As shown in FIG. 9, a plurality of cover panels 60 are provided on the upper portion of the installation space 33 arranged at predetermined intervals, and at least one of the installation spaces 33 It is preferable that a perfume case 62 having a storage portion 63 and a plurality of perforations 64 formed thereon and a perfume 65 in the storage portion is provided.

That is, the heating hot water panel 100 according to the present invention is installed continuously in the longitudinal direction and the width direction on the wall or floor of houses and indoor facilities, and has a plurality And at least one of the installation spaces 33 is provided with a cover panel 60 and a fragrance case 62 accommodating the fragrance 65 therein desirable.

A plurality of perforations 64 are formed in the upper portion of the fragrance case 62 and a fragrance 65 is disposed in the upper portion. It is possible to increase the convenience of the user by providing a smell to the interior of the facility.

It is preferable that the bottom surface of the fragrance case 62 is seated on the step portion 23 and the cover panel fixing projections 61 corresponding to the cover panel fastening holes 24 are fixedly installed on the bottom surface Do.

As shown in FIGS. 10 and 11, the heating water-heating panel is formed of a rectangular plate material so as to be fixed on the ground while being continuously arranged in the longitudinal direction and the width direction, and four A fixing panel 70 provided with fixing protrusions 71 is provided and protrudes outward from a lower end edge of a fixing bracket 20 surrounding the oblique surface 13 to cover the bottom surface of the installation space portion 33, 25b, 25c, and 25d shielding the bottom surface of the installation space portion 33 by being combined adjacent to each other, the bottom surface of each of the blocking plates 25a, 25b, 25c, It is preferable to form the fixing protrusion fastening hole 27 into which the fixing panel insertion groove 26 and the fixing protrusion 71 are inserted.

That is, the fixed panel 70 is formed of a rectangular plate material so that the heating hot water panels 100 according to the present invention can be fixedly installed on the ground while being continuously arranged in the longitudinal direction and the width direction, There are provided four fixing protrusions 71 which protrude.

The fixing bracket 20 is provided with a shielding plate 25 protruding outward from a lower end edge of a fixing bracket surrounding the oblique surface 13 of the heat storage plate 10 for mounting the fixing panel 70 25b, 25c, 25d are adjacently joined to each other while the hot water panels 100 are continuously arranged in the longitudinal direction and the width direction, and the installation space portions 33 As shown in FIG.

A fixing panel insertion groove 26 corresponding to the fixing panel 70 is formed on the bottom surface of the blocking plate 25 and a fixing protrusion fastening member A hole 27 is formed.

Therefore, when the hot water panel 100 according to the present invention is installed continuously in the longitudinal direction and the width direction, the chamfered surfaces 13a, 13b, 13c, and 13d disposed adjacent to each other are combined to form the rhombus- And the bottom surface of the installation space portion 33 is shielded by the shield plates 25a, 25b, 25c, and 25d disposed adjacent to each other.

A fixing panel insertion groove 26 corresponding to the fixing panel 70 and a fixing protrusion fixing hole 27 for fixing the fixing protrusion are formed on the bottom surface of the blocking plate 25, And are fixedly mounted on the ground.

As described above, according to the present invention, a heat storage plate (10) having a housing space (11) formed in the shape of a housing having a bottom opened by bending a corner of a plate material in a downward direction, A hot water passage (30) inserted into the accommodation space and having an end protruding outward from the fixing bracket, and a water supply passage (30) extending from the bottom of the heat storage plate to the inside of the accommodation space together with the hot water passage The present invention is not limited to the above-described embodiment, and the present invention is not limited to the above-described embodiment, and the present invention is not limited to the above- It is needless to say that variations can be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the scope of claim of the present invention is not limited within the scope of the detailed description, but will be defined by the following claims and technical ideas thereof.

100: Heated panel for heating
10: heat storage plate 11: accommodation space part
12: side 13: beveled
14: Fixing bracket fastening hole 15: Hot water passage fixing groove
20: fixing bracket 21: fastening projection
22: Fixing hole 23:
24: Cover panel fastening hole 25:
26: Fixing panel insertion groove 27: Fixing projection tightening hole
30: Hot water flow path 31: Heat pipe
32: Fixing fitting 33: Installation space part
34: connector 35: fastener
40: Heat insulating material 41: Hot water flow receiving groove
42: District 50: Finishing plate
60: cover panel 61: cover panel fixing projection
62: perfume case 63: storage compartment
64: perforated 65: aromatic
70: Fixing panel 71: Fixing projection

Claims (8)

The present invention relates to a hot water heating panel installed on a wall or floor of a house or an indoor facility and used as a heating material using radiant heat by introducing a heating medium into the inside thereof, (10) having a housing space (11) therein, a fixing bracket (20) arranged to surround the side of the heat storage plate, and a fixing bracket (20) inserted into the accommodation space and having an end protruded outside the fixing bracket A heat insulating material 40 inserted into the accommodation space together with the hot water flow path from the lower part of the heat storage plate and a finishing plate 50 seated on the upper surface of the heat storage plate 10, Wherein the heat storage plate 10 is bent in the shape of an octagonal trough having four side surfaces 12 provided on the front and rear and left and right sides and a beveled surface 13 provided on four ears, One 20b, 20c, and 20d are formed so as to surround one side of the oblique surface 13 adjacent to the side surface 12 and are connected to surround the side surface of the heat storage plate 10 Heated hot water panels.
The fixing bracket according to claim 1, wherein a plurality of fixing bracket fastening holes (14) are formed on a side surface (12) of the heat storage plate (10), and fastening protrusions (21) is provided on the upper surface of the heating panel.
The fixing device according to claim 1, wherein the oblique surface (13) is provided with a hot water passage fixing groove (15) in which an end of the hot water passage (30) protrudes, and a fixing hole (22) corresponding to the hot water passage fixing groove The hot water channel 30 is connected to both ends of the heat generating tube 31 and is in close contact with the fixing hole 22 And a fixing fixture (32) to be fixed.
[4] The apparatus according to claim 3, wherein the heating tube (31) comprises: a first heating tube (311) bent in a zigzag shape so as to heat the heat storage plate (10) And the fixing holes 22 formed in the fixing bracket are formed as a pair 22a and 22b so that the first heating pipe 311 and the second heating pipe 312 And each end portion is connected to each other.
4. The heating water heating panel according to claim 3, wherein the heating hot water panels are continuously arranged in the longitudinal direction and the width direction, and adjoining oblique surfaces are combined to provide a rhombus-shaped installation space portion (33) A connection pipe 34 formed of a bellows pipe connecting the fixing fitting 32 protruding into the installation space and the fixing fitting 32 'of the hot water panel disposed adjacent to the connection pipe 34, And a fastener (35) for fastening both ends of the pipe (34) to the end portions of the fixing fittings (32, 32 ').
The cover panel according to claim 5, further comprising a cover panel (60) covering an upper portion of the installation space (33), the cover panel (60) being protruded outwardly of a fixing bracket (20) And a cover panel fixing protrusion 61 corresponding to the cover panel fixing hole 24 is provided on the bottom surface of the cover panel 60 so that the cover panel 60 can be fixed to the cover panel 60. [ And the upper surface of the fixing bracket (20) and the upper surface of the fixing bracket (20).
The portable terminal according to claim 6, wherein a plurality of cover panels (60) are provided on the installation space part (33) arranged at predetermined intervals, and at least one installation space part (33) And a perfume case (62) having a plurality of perforations (64) formed at an upper portion thereof and a perfume (65) disposed in the containing portion.
6. The hot water heating panel according to claim 5, wherein the heating water heater panel comprises four fixing protrusions (71) formed of a rectangular plate material and projecting in the vertical direction on the upper surface so as to be fixed on the ground while being continuously arranged in the longitudinal direction and the width direction And a shield plate 25 protruding outward from a lower end edge of the fixing bracket 20 surrounding the oblique surface 13 and shielding the bottom surface of the installation space portion 33, 25b, 25c, and 25d shielding the bottom surface of the installation space portion 33 by being adjoined to each other, fixed panel insertion grooves 26 (corresponding to the fixed panel 70) And a fixing protrusion fixing hole (27) for fixing the fixing protrusion (71) are formed.

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