CN218522129U

CN218522129U - Well wall

Info

Publication number: CN218522129U
Application number: CN202222124919.4U
Authority: CN
Inventors: 崔学彬; 刘占维; 党连军; 吴福康
Original assignee: Beijing New Building Material Group Co Ltd
Current assignee: Beijing New Building Material Group Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-02-24
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a well wall, include: receive limit fossil fragments, receive limit fossil fragments and be equipped with the installation the first adjustable clamping structure of first wallboard unit, first adjustable clamping structure forms the centre gripping clearance of first wallboard unit can realize the regulation in centre gripping clearance.

Description

Well wall

Technical Field

The utility model relates to a building technology, more specifically relates to a well wall.

Background

The shaft wall system is mainly applied to elevator shafts, water wells, air inlet/exhaust duct wells and other areas of large public buildings. Current well wall body generally adopts C + H type fossil fragments system, and the installation is pegged graft for one side, and the fixed mode of one side self tapping nail, grafting side when the last board of installation, need fix earlier the fossil fragments at both ends, but both ends fossil fragments slot is U type structure, leads to last row board installation comparatively difficult, need install it after cutting a part according to former size, just so has panel and fossil fragments junction contact surface less, has the potential safety hazard that drops.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a well wall has solved the installation of the interior wallboard unit of well wall body and the problem of construction difficulty, has avoided the risk hidden danger that panel probably dropped.

The embodiment of the utility model provides a well wall, include: the wallboard comprises a keel assembly and a wallboard assembly arranged on the keel assembly, wherein the wallboard assembly comprises a plurality of spliced first wallboard units; the keel assembly comprises one or more supporting keels for splicing the first wallboard units and edge-closing keels which are arranged at the side ends of the hoistway wall and matched with the supporting keels for splicing the first wallboard units; receive limit fossil fragments and be equipped with the installation the first adjustable clamping structure of first wallboard unit, first adjustable clamping structure forms the centre gripping clearance of first wallboard unit can realize the regulation in centre gripping clearance.

In one exemplary embodiment, the edge-closing keel comprises a first base plate, a second base plate and a connecting plate for connecting the first base plate and the second base plate;

the keel assembly further comprises a first clamping piece installed on the connecting plate of the edge folding keel, and the first clamping piece and the surface of the second substrate of the edge folding keel form the first adjustable clamping structure.

In an exemplary embodiment, the support grid is provided with a second adjustable clamping structure for mounting said first wall panel unit;

the supporting keel also comprises a first base plate, a second base plate and a connecting plate for connecting the first base plate and the second base plate;

the keel assembly further comprises a second clamping piece installed on the connecting plate of the supporting keel, and the second clamping piece is respectively formed with the surface of the second substrate of the supporting keel to form the second adjustable clamping structure.

In an exemplary embodiment, the first clamping member is configured to be mounted on the connecting plate of the edge keel after the interior wall panel unit is arranged on the second base plate of the edge keel.

The second holder sets up to be in interior wallboard unit arrange in support the second base plate of fossil fragments after, install in support on the connecting plate of fossil fragments.

In one exemplary embodiment, the first clamping member and the second clamping member each comprise a clamping plate and a mounting plate connected to the clamping plate and forming a corner;

the plate surface of the clamping plate is opposite to the plate surface of the second substrate of the support keel or the edge folding keel and forms a clamping gap with the second substrate of the support keel or the edge folding keel; the mounting plate is movably mounted on the connecting plate.

In an exemplary embodiment, the connecting plate of the supporting keel and the trimming keel or the mounting plate of the first clamping piece and the second clamping piece is provided with an elongated adjusting hole extending along the thickness direction of the hoistway wall;

the well wall still includes through the regulation hole will support the connecting plate of fossil fragments and receipts limit fossil fragments with the connecting piece that the mounting panel of first holder and second holder is connected.

In an exemplary embodiment, the trimming keel is arranged along the height direction of the shaft wall, and the cross section of the trimming keel is integrally C-shaped;

the supporting keels are arranged in the length direction of the hoistway wall, and the cross section of the supporting keels is I-shaped integrally;

receive limit fossil fragments and support fossil fragments and all buckle the shaping through substrate an organic whole.

In an exemplary embodiment, the first clamping piece and the second clamping piece are both arranged along the height direction of the hoistway wall; or the first clamping piece and the second clamping piece are arranged along the height direction of the hoistway wall at intervals;

the first clamping piece and the second clamping piece are both L-shaped, and the corners formed by the mounting plates and the clamping plates of the first clamping piece and the second clamping piece are both 90 degrees.

In an exemplary embodiment, the second clamping members include at least two second clamping members respectively disposed at two sides of the connecting plate of the support keel, and the at least two second clamping members are oppositely installed.

In an exemplary embodiment, the wall panel assembly further comprises a second wall panel mounted on the first base plate of the support runner and the closeout runner;

the first wall board unit and the second wall board are both made of water-resistant and fire-resistant gypsum boards, and the second wall board comprises a plurality of blocks stacked along the thickness direction of the hoistway wall;

the well wall still including locate the inoxidizing coating in the interval between first wallboard unit and the second wallboard, the inoxidizing coating includes the rock wool. .

Compared with the prior art, the embodiment of the utility model provides a well wall through set up adjustable clamping structure can with receive limit fossil fragments cooperation installation, solved the installation of the interior wallboard unit of well wall body and the problem of construction difficulty.

In addition, the clamping piece that forms adjustable clamping structure can be earlier at interior wallboard unit primary installation on receiving limit fossil fragments, presss from both sides tight location again, and especially when wallboard unit installation in the last row of well wall, simple installation needn't cut interior wallboard unit and install after partly, avoids leading to panel and fossil fragments junction contact surface less, the potential safety hazard that drops that causes.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

Fig. 1 is a schematic perspective view of a hoistway wall according to an embodiment of the present invention;

fig. 2 is a schematic top view of a hoistway wall according to an embodiment of the present invention;

fig. 3 is a perspective view of a trimming keel of a hoistway wall according to an embodiment of the present invention;

fig. 4 is a perspective view of a support keel of a hoistway wall according to an embodiment of the present invention;

fig. 5 is a partial perspective view of a hoistway wall according to an embodiment of the present invention;

fig. 6 is a first schematic view illustrating an installation state of an inner wall panel unit at a side end of a hoistway wall according to an embodiment of the present invention;

fig. 7 is a schematic view illustrating an installation state of an inner wall panel unit at a side end of a hoistway wall according to an embodiment of the present invention;

fig. 8 is a schematic view showing a third installation state of the inner wall panel unit at the side end of the hoistway wall according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features of the embodiments may be arbitrarily combined with each other.

As shown in fig. 1-8, the embodiment of the utility model provides a well wall 100 can be applied to well walls such as well wall, air inlet well wall and drainage of airing exhaust, can play effects such as waterproof, give sound insulation, and the structrual installation is nimble, with low costs.

As shown in fig. 1-2, an embodiment of the present invention provides a hoistway wall 100 of a hoistway wall, which includes a first wall panel 1, a second wall panel 2, and a keel assembly 3 for mounting the first wall panel 1 and the second wall panel 2. Wherein the first wall panel 2 comprises a plurality of first wall panel units 10 joined by keel assemblies 3. The first wall panel 1 in this embodiment is an inner wall panel of the hoistway wall 100, and the second wall panel 2 is an outer wall panel of the hoistway wall 100.

In this embodiment, interior wallboard 1 is close to the setting of well inner wall, can adopt the thicker material of thickness than exterior wallboard 2, and thickness also can be the same or different certainly, specifically selects according to actual conditions. For example, when the requirements for water and fire resistance are high, the inner wall panel 1 and the outer wall panel 2 can both be made of fire-resistant and water-resistant gypsum boards with certain thicknesses, and the thickness of the inner wall panel 1 is selected to be thicker than that of the outer wall panel 2. Specifically, the materials of the external wall panel 2 and the internal wall panel 1 can be selected according to practical applications, and are not limited herein. For example, when the sound insulation requirement is relatively high, a material having good sound insulation performance may be used.

In this embodiment, the external wall panel 2 may be one or more than one stacked in the thickness direction of the hoistway wall 100. Specifically, the number of the external wall panels 2 and the internal wall panels 1 can be designed according to actual requirements, and is not limited herein.

In this embodiment, side fascia 2 and interior wallboard 1 support and the interval through fossil fragments subassembly 3 to it has inoxidizing coating 4 still to fill in the interval of side fascia 2 and interior wallboard 1, and inoxidizing coating 4 can include acoustic barrier material or fire prevention material etc. and fire prevention material includes rock wool etc..

As shown in fig. 2, the keel assembly 3 includes a plurality of supporting keels 31 for splicing a plurality of interior wall panel units 10, and a trimming keel 32 provided at a side end of the hoistway wall 100 and adapted to splice the first wall panel unit 20 (interior wall panel unit) with the supporting keels 31. In this embodiment, the two edge-closing keels 32 are respectively disposed at two side ends of the hoistway wall 100, and are used for being fixedly connected to the base wall 5, and the supporting keels 31 are disposed between the edge-closing keels 32 at the two side ends.

Wherein, receive limit fossil fragments 32 and be equipped with the first adjustable clamping structure of installation interior wallboard unit 10, first adjustable clamping structure forms the centre gripping clearance of the first wallboard unit 20 of centre gripping and can realize the regulation in centre gripping clearance. The support keel 31 is provided with a second adjustable clamping structure for mounting the interior wall panel unit 10, which forms a clamping gap for clamping the interior wall panel unit and allows adjustment of the clamping gap.

As shown in fig. 3, the edge-closing keel 32 includes a first base plate 321, a second base plate 322, and a connecting plate 323 connecting the first base plate 321 and the second base plate 322. The first substrate 321 and the second substrate 322 have opposite plate surfaces and a space therebetween for placing the protective layer 4. The keel assembly 3 further comprises a first clamping piece 33a installed on the connecting plate of the edge-closing keel, and the first clamping piece 33a and the plate surface of the second base plate 323 form a clamping gap for clamping the inner wall plate unit 10, so that the first adjustable clamping structure is formed.

In this embodiment, the edge-closing keel 32 is disposed along the height direction of the hoistway wall 100, and the cross section of the edge-closing keel is entirely C-shaped. The edge-closing keel 32 is integrally formed by bending the base material. The plurality of first clamping members 33 includes at least one provided at a side of the connecting plate 323 opposite to the support keel 31.

As shown in fig. 4, the support keel 31 includes a first base plate 311, a second base plate 312, and a connection plate 313 connecting the first base plate 311 and the second base plate 312. The first substrate 311 and the second substrate 312 have opposite plate surfaces and a space therebetween for placing the protective layer 4. The keel assembly 3 further comprises a second clamping member 33b mounted on the support keel 31, the second clamping member 33b is mounted on the connection plate 313 and forms a clamping gap with the plate surface of the second base plate 313 for clamping the interior wall panel unit 10, thereby forming the above-mentioned second adjustable clamping structure.

In this embodiment, the supporting keel 31 is disposed along the height direction of the hoistway wall 100, and the cross section of the supporting keel is in an i shape as a whole. The support keel 31 is integrally formed by bending the base material. The plurality of second clamping members 33a include at least two clamping members respectively disposed at both sides of the connection plate 313, and the at least two clamping members 33 are installed to be opposite to each other.

As shown in fig. 3, the first clamping member 33a and the second clamping member 33b are identical in structure and each include a clamping plate 331 and a mounting plate 332 forming a corner with the clamping plate 331. The holding plate 331 is provided between the first base plate 311 (321) and the second base plate 312 (322) in the thickness direction of the hoistway wall 100, and the plate surface of the holding plate and the plate surface of the second base plate 312 (322) face each other to form the holding gap with the plate surface of the second base plate 312 (322). The mounting plate 332 is mountable to the coupling plate 313 of the support runner 31 and the coupling plate 323 of the furring runner 32 by means of coupling members. The mounting plate 332 in this embodiment is movably mounted to the coupling plate 313 of the support runner 31 or the coupling plate 323 of the edge runner so that the size of the clamping gap can be adjusted.

When the wallboard is installed, the inner wallboard 1 is arranged behind the second base plate 322 of the edge-closing keel 32, the first clamping piece 33a is installed on the connecting plate 323 of the edge-closing keel 32 to form a clamping gap with the plate surface of the second base plate 322 of the edge-closing keel 32, and the size of the clamping gap is adjusted, so that two sides of the inner wallboard unit 10 are respectively clamped and positioned.

Similarly, after the interior wall panel 1 is disposed on the second base plate 312 of the support keel 31, the second clamping members 33b are mounted on the connecting plate 313 of the support keel 31 to form the clamping gaps with the plate surfaces of the second base plate 312 of the support keel 31, and the size of the clamping gaps is adjusted, so that the two sides of the interior wall panel unit 10 are clamped and positioned respectively.

This well wall 100 of implementation through setting up first and

second holder

33a, 33b, can be including wallboard unit 10 earlier preliminary installation on supporting fossil fragments 31 and receiving limit fossil fragments 32, press from both sides tight location again, especially when wallboard unit 10 installs in the last row of well wall 100, simple installation, needn't cut wallboard unit 10 in and install after some, avoid resulting in panel and fossil fragments junction contact surface less, the potential safety hazard that drops that causes.

In an exemplary embodiment, the mounting plate 332 may be mounted on an extension plate of the

connection plate

313, 323 such that the

second base plate

312, 322 is located between the

first base plate

311, 321 and the clamping plate 331 in a thickness direction of the hoistway wall 100, and the clamping gap of the clamping plate 331 and the

second base plate

312, 321 is also adjustable by moving the mounting plate 332.

As shown in fig. 4, the mounting plate 332 is provided with an elongated adjustment hole 3320 extending in the thickness direction of the hoistway wall 100, and the mounting plate 332 and the connection plate 312 are connected by the connection member 5 through the adjustment hole 3320 and the opening of the connection plate 313. Since the adjustment hole 3320 is elongated, when the mounting plate 332 is mounted on the connection plate 313 (323) by using the connection member 5, the mounting plate 332 can move within a certain range through the adjustment hole 3320, so as to adjust the size of the clamping gap a between the clamping plate 331 and the second base plate 312 (322), thereby clamping the interior wall panel unit 10. Wherein the connecting member 5 may be a bolt or the like.

In an exemplary embodiment, the adjustment holes 3320 may also be provided on the

connection plates

313, 323, and the mounting plate 332 may be movable as well.

In this embodiment, the first and

second clamping members

33a, 33b are each L-shaped, and the corner formed by the mounting plate 332 and the clamping plate 331 is 90 degrees. The first and

second clamping members

33a, 33b in this embodiment are made in an integral manner.

In an exemplary embodiment, the first and

second clamping pieces

33a and 33b may respectively include a plurality of clamping pieces arranged at intervals in a height direction of the hoistway wall 100.

In an exemplary embodiment, the mounting plate 332 and the

coupling plates

313, 323 may be provided with cooperating runner structures (not shown) to also effect movement of the clamping member 33, and thus adjustment of the clamping gap.

As shown in fig. 5, the keel assembly 3 further includes a positioning keel 34 disposed lengthwise along the hoistway wall 100. The positioning keel 34 includes a base plate 341, sidewalls 342 extending from both sides of the base plate 341 in a height direction, and the base plate 341 and the sidewalls 342 forming a groove. The supporting keel 31 and the edge-closing keel 32 are both installed in the grooves, and the

first base plates

311 and 321 and the

second base plates

312 and 322 respectively abut against the two side walls 342.

The keel component 3 of the hoistway wall 100 of the embodiment has adjustable performance, can be adjusted according to different thicknesses of the plates at the use parts, and saves the specification of the keel. In addition, according to the use position difference, can select different thickness interior wall panels 1, effectively reduce wall body cost.

The hoistway wall 100 of the embodiment is more flexible to mount, the mounting structure is more firm, and the overall rigidity mounting and stability of the wall are enhanced.

The height of the support keel 31 and the first and

second clamping members

33a, 33b in this embodiment may be up to 300-3000mm. The holding members 32 may be arranged in a full length or in a segmented manner.

When installing the hoistway wall 100 of this embodiment, the positioning keels 34 are first fixed to the ground and the top infrastructure by expansion bolts, and the top and bottom positioning keels 34 are installed correspondingly. The edge-closing keels 32 at the two ends and the positioning keels 34 are installed in a matching mode and fixedly connected with the foundation wall 5 through expansion screws.

Then, along the length direction of the positioning keel 34, a plurality of supporting keels 31 are sequentially installed on the positioning keel 34, and the interior wall panel unit 10 is installed between the adjacent supporting keels 31 and between the supporting keels 31 and the edge-closing keels 32.

When installing the interior wall panel unit 10 between the adjacent support keels 31, one interior wall panel unit 10 is placed on the inner side of the second base plate 313 of the adjacent support keel 31, the clamping plates 331 of the second clamping members 33b are connected with the connecting plates 313 of the support keels 31, and the gaps between the clamping plates 331 on both sides and the second base plate 313 are adjusted to clamp the interior wall panel unit 10. The interior wall panel unit 10 may also be installed after the clamping plates 331 are connected to the connecting plates 313 of the support runners 31.

As shown in fig. 6-8, when installing the interior wall panel unit 10 between the support keel 31 and the edge-closing keel 32, two sides of the interior wall panel unit 10 are respectively placed on the second base plate 312 of the support keel 31 and the second base plate 322 of the edge-closing keel 32; the clamping plate 331 of the second clamping piece 33b is connected with the connecting plate 313 of the support keel 31, the clamping plate 331 of the first clamping piece 33a is connected with the connecting plate 323 of the edge keel 32, and the gap between the clamping plate 331 of the first clamping piece 33a and the second base plate 324 of the edge keel 32 on two sides and the gap between the clamping plate 331 of the second clamping piece 33b and the second base plate 313 of the support keel 31 are adjusted.

Next, the external wall panel 2 is installed on the supporting keels 3, and the external wall panel 2 is directly fixed on the plurality of supporting keels 3 and the edge-closing keels 32 by using screws. In the installation process, rock wool or heat preservation cotton can be put into the cavity between the outer wall board 2 and the inner wall board 1 to form a protective layer, and then the outer wall board 2 is fixed on the

first base boards

311 and 321 in sequence by self-tapping screws, so that the installation of the wall body of the whole hoistway wall 100 is completed.

The embodiment of the utility model provides a still provide a well wall's installation method, including following operation:

securing a plurality of locating studs 34 to the ground and roof infrastructure respectively;

installing the edge-closing keel 32 on the positioning keel 34 and fixedly connecting the edge-closing keel with the base wall 5, installing the supporting keel 31 on the positioning keel 34, and installing the inner wall board unit 10;

when the interior wall panel unit 10 between the support keel 31 and the edge-closing keel 32 is installed, two sides of the interior wall panel unit 10 are respectively placed on the

second base plates

312 and 322 of the support keel 31 and the edge-closing keel 32; the first and

second clamping members

33a and 33b are respectively mounted on the connecting

plates

313 and 323 of the support keel 31 and the edge keel 32 to form a clamping gap with the

second base plates

312 and 322 of the support keel 31 and the edge keel 32 and clamp the interior wall panel unit 10.

According to the installation method of the hoistway wall 100, the inner wall panel unit 10 is firstly preliminarily installed on the supporting keel 31 and the edge-closing keel 32, and then the first clamping piece 33a and the second clamping piece 33b are used for clamping and positioning, so that particularly when the last row of inner wall panel units 10 of the hoistway wall 100 are installed, the installation is simple and convenient, the inner wall panel units 10 do not need to be installed after being partially cut, and the potential safety hazard that the contact surface of the joint of a panel and the keel is small and the falling is caused is avoided.

The hoistway wall 100 is applied to the method for installing the hoistway wall of the present embodiment, and the structure of the hoistway wall 100 may refer to the hoistway wall 100 of any of the above embodiments, which is not described herein again.

The installation method of the hoistway wall 100 of the embodiment has the advantages of flexible overall installation and firm installation structure, and enhances the overall rigidity installation and stability of the wall body.

In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, is not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A hoistway wall, comprising: the wallboard comprises a keel assembly and a wallboard assembly arranged on the keel assembly, wherein the wallboard assembly comprises a plurality of spliced first wallboard units;

the keel assembly comprises one or more supporting keels for splicing the first wallboard units and edge-closing keels which are arranged at the side ends of the hoistway wall and matched with the supporting keels for splicing the first wallboard units;

receive limit fossil fragments and be equipped with the installation the first adjustable clamping structure of first wallboard unit, first adjustable clamping structure forms the centre gripping clearance of first wallboard unit can realize the regulation in centre gripping clearance.

2. The hoistway wall of claim 1, wherein the closeout keel comprises a first base plate, a second base plate, and a connecting plate connecting the first base plate and the second base plate;

3. The hoistway wall of claim 2, wherein the support keel is provided with a second adjustable clamping structure for mounting the first wall panel unit, the second adjustable clamping structure forming a clamping gap for clamping the first wall panel unit and enabling adjustment of the clamping gap;

the keel assembly further comprises a second clamping piece arranged on the connecting plate of the support keel, and the second clamping piece and the surface of the second substrate of the support keel form the second adjustable clamping structure respectively.

4. A hoistway wall as defined in claim 3,

the first clamping piece is arranged on the connecting plate of the edge-closing keel after the first wallboard unit is arranged on the second substrate of the edge-closing keel;

the second clamping piece is arranged to be installed on the connecting plate of the support keel after the first wallboard unit is arranged on the second base plate of the support keel.

5. The hoistway wall of claim 3, wherein the first and second clamp members each comprise a clamp plate and a mounting plate connected to the clamp plate and forming a corner;

the plate surface of the clamping plate is opposite to the plate surface of the second substrate of the support keel or the edge folding keel and forms a clamping gap with the second substrate of the support keel or the edge folding keel; the mounting plate is movably mounted on the connecting plate of the support keel or the edge-closing keel.

6. The hoistway wall as claimed in claim 5, wherein the connecting plate of the support keel and the trimming keel or the mounting plate of the first clamping member and the second clamping member is provided with an elongated adjusting hole extending in the thickness direction of the hoistway wall;

7. The hoistway wall of claim 5, wherein the first clamping member and the second clamping member are each disposed along a height direction of the hoistway wall; or the first clamping piece and the second clamping piece are arranged along the height direction of the hoistway wall at intervals;

8. The hoistway wall of claim 5, wherein the second clamping members comprise at least two second clamping members respectively disposed on both sides of the connecting plate of the support keel, and the at least two second clamping members are oppositely disposed.

9. A hoistway wall as defined in claim 1,

the edge-closing keel is arranged along the height direction of the hoistway wall in a through manner, and the whole cross section of the edge-closing keel is in a C shape;

receive limit fossil fragments and support fossil fragments and all buckle the shaping through substrate is integrative.

10. The hoistway wall of claim 1, wherein the wall panel assembly further comprises a second wall panel mounted on the first base panel of the support and closeout keels, the second wall panel being spaced from the first wall panel unit in a thickness direction of the hoistway wall;

the well wall still including locate the inoxidizing coating in the interval between first wallboard unit and the second wallboard, the inoxidizing coating includes the rock wool.