Assembled assembly device for heat-insulating fire-resistant glass non-load-bearing partition walls
Through the prefabricated combination device, the wall grooves and vertical strips are used to solve the problems of the existing thermally insulated fire-proof glass partition wall installation structure and the appearance is not beautiful, and the effect of stable fixation and beautiful appearance is achieved, meeting the dual requirements of modern buildings for fire safety and aesthetics.
Patent Information
- Application Number
- CN202110860488.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-07-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2041-07-28
AI Technical Summary
The existing thermally insulated fire-resistant glass partition walls have rough installation structures, poor appearance, and lack prefabricated construction solutions, making it difficult to meet the dual requirements of modern buildings for fire safety and aesthetics.
The prefabricated combination device is adopted, including an outer frame and vertical bar composed of multiple wall grooves, which are fixed to the indoor ceiling, floor or solid wall through the wall groove. The vertical collar is installed between the top wall groove and the floor wall groove, and combined with the structure of positioning parts and screw threads, the stable fixation of the insulated fire-proof glass is achieved.
It realizes the stable fixation of heat-insulated fire-resistant glass, with a slender appearance and a higher appearance, and meets the requirements of fire safety and aesthetics. The prefabricated construction plan is adopted to improve construction efficiency and accuracy.
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Figure CN113756474B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a combination device, in particular to an assembled combination device of a heat-insulating fireproof glass non-load-bearing partition wall. Background Art
[0002] At present, in the field of building interior decoration, aluminum alloy glass partitions are becoming more and more popular in the market because they allow bright and transparent light to separate spaces and have a delicate and beautiful appearance. As people have higher requirements for the use of space, it will be a development trend in the future to use more insulated fireproof glass partitions that meet fire safety requirements in building interiors.
[0003] Usually, the thickness and weight per square meter of glass used in insulated fire-resistant glass partition walls are several times that of ordinary glass partition walls, and there are certain strength and design requirements for the steel frame structure that bears heavy glass and resists high-temperature combustion. Figure 1 This is a schematic diagram of the first installation structure of heat-insulating fire-resistant glass in the prior art; Figure 2 It is a schematic diagram of the second installation structure of the heat-insulating fireproof glass in the prior art, such as Figure 1 , Figure 2 As shown, the domestic heat-insulating fireproof glass technology has entered a mature stage after more than 20 years of development, but the steel frame structure technology for installing and fixing heat-insulating fireproof glass to form indoor partition walls is still in the stage of "square steel tube" glass-inlaid components. Construction cutting and construction welding are the norm, and the appearance details presented are rough and unsightly, and are unpopular. The steel frame node technology of similar foreign products is developed on the basis of fireproof curtain walls or fireproof doors and windows, which is completely different from the structural design concept of aluminum system partition walls for indoor modular and finished product separation. For example, the node steel frame structure of fireproof doors and windows does not have the function of assembly adjustment or absorption of dimensional deviations for the horizontal and vertical deviations of the indoor ceiling, ground, and solid wall, so the frame appearance size is usually designed to be relatively wide to "hide" the assembly or detail problems caused by the dimensional deviation, and the appearance effect appears rough and "stupid". Since the design of its steel frame structure does not involve adjustment functions, it does not have the conditions for prefabricated construction.
[0004] Therefore, the present invention is committed to providing an insulating fireproof glass non-load-bearing partition wall that can solve the fire safety problem while having a slim appearance, higher appearance, and can adopt an assembled construction solution. Summary of the invention
[0005] The above object of the present invention is achieved through the following technical solutions:
[0006] An assembled assembly device for a non-load-bearing partition wall of heat-insulating fireproof glass, comprising: an outer frame composed of a plurality of wall grooves, a mullion installed in the outer frame; a heat-insulating fireproof glass installed between the outer frame and the mullion; the wall groove comprising: a second inverted U-shaped groove snapped into an opening of the first U-shaped groove, a positioning member installed on the opening of the first U-shaped groove, the positioning member comprising an inverted U-shaped positioning strip having two outer side surfaces opposite to each other and an extension strip, and further comprising: two first pressure strips with L-shaped cross-sections arranged opposite to each other, a surface of a first side of the first pressure strip abutting against an outer side edge of the extension strip away from the inverted U-shaped positioning strip, an upper side edge of a first side of the first pressure strip, the extension strip and the outer side edge of the inverted U-shaped positioning strip together forming a first U-shaped glass groove; a side edge of a second side of the first pressure strip abutting against the first U The outer walls of the grooves are against each other; multiple first screw threads pass through the first side surface of the first pressure strip, the inverted U-shaped positioning strip, the second inverted U-shaped groove, and the first U-shaped groove; the vertical bar includes: two second pressure strips are relatively installed on both sides of the column, the second pressure strip includes: a second U-shaped groove in the middle of the limiting strip, and the second U-shaped groove is installed on the column; it also includes: two third pressure strips are relatively arranged, the third pressure strip includes: a third U-shaped groove in the middle of the fixing strip, the third U-shaped groove is placed between the two limiting strips, and multiple second screw threads pass through the third U-shaped groove and are fixed to the column threads; the fixing strip, the limiting strip, and the second U-shaped groove together constitute a second U-shaped glass groove, and the heat-insulating fire-resistant glass is installed between the first U-shaped groove and the second U-shaped groove that are relatively arranged.
[0007] In the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall as described above, a door pocket is installed between one of the vertical wall grooves and the adjacent vertical bars.
[0008] As described above, the assembled combination device of the heat-insulating fire-resistant glass non-load-bearing partition wall, wherein the first side surface of the first pressure strip is provided with a fourth U-shaped groove, and a plurality of the first screw threads pass through the fourth U-shaped groove.
[0009] The assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall as described above, wherein it also includes a plurality of strip-shaped covering members, wherein the covering members include: two clamping arms are vertically mounted on one side surface of the cover plate, and the covering members are mounted on the third U-shaped groove and the fourth U-shaped groove.
[0010] As described above, the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall, wherein the cross section of the column is bow-shaped.
[0011] The assembled combination device of the heat-insulating fireproof glass non-load-bearing partition wall as described above, wherein the door frame comprises: a door frame composed of a plurality of the wall grooves, glass is installed in the door frame; a hinge is installed on one side of the door frame, and a door lock and a handle are installed on the other side of the door frame.
[0012] The assembled combination device of the heat-insulating fireproof glass non-load-bearing partition wall as described above, wherein, also includes two door frame strips, wherein the door frame strips are installed on the vertical wall grooves and the vertical bars adjacent to the door frame; the hinge is fixed to one of the door frame strips, and a lock box matching the door lock is installed on the other door frame strip.
[0013] As described above, the assembled combination device of the heat-insulating fireproof glass non-load-bearing partition wall, wherein fireproof sealing strips are installed in both the first U-shaped glass groove and the second U-shaped glass groove.
[0014] In summary, due to the adoption of the above technical solution, the present invention can fix the wall groove to the ceiling, floor or solid wall in the room, the vertical collar is installed between the top wall groove and the ground wall groove, and has a vertical support function, and the door cover is a door that can be added between the two vertical collars or between the vertical collar and the wall groove to separate the entrance and exit. The present invention fixes the fireproof and heat-insulating fireproof glass combination to the partition wall of the indoor safety passage of the building through an assembled combination method, so that the environment is not only bright and transparent, but also meets the requirements of fire safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the first installation structure of heat-insulating fire-resistant glass in the prior art;
[0016] Figure 2 This is a schematic diagram of the second installation structure of the heat-insulating fireproof glass in the prior art;
[0017] Figure 3 It is a schematic diagram of the first installation structure of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0018] Figure 4 It is a structural schematic diagram of the first U-shaped groove of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0019] Figure 5 It is a structural schematic diagram of the second inverted U-shaped groove of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0020] Figure 6 It is a schematic structural cross-sectional view of a positioning member of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0021] Figure 7 It is a structural schematic diagram of a positioning member of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0022] Figure 8 It is a schematic structural cross-sectional view of a first pressure strip of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0023] Fig. 9 It is a structural schematic diagram of the first pressure strip of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0024] Fig.10 It is a schematic cross-sectional view of a covering member of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0025] Fig.11 It is a structural schematic diagram of a covering member of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0026] Fig.12 It is a schematic cross-sectional view of a column of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0027] Fig.13 It is a schematic structural diagram of the columns of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0028] Fig.14 It is a cross-sectional schematic diagram of a second pressure strip of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0029] Fig.15 It is a schematic structural diagram of a second pressure strip of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0030] Fig.16 It is a schematic structural cross-sectional view of a fixing strip of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0031] Fig.17 It is a schematic structural diagram of a fixing strip of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0032] Fig.18 It is a cross-sectional view of a door frame strip of an assembled assembly of a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0033] Fig.19 It is a schematic structural diagram of a door frame strip of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0034] Fig. 20 It is a schematic diagram of the first installation structure of the wall groove of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0035] Fig.21 It is a schematic diagram of the installation structure of the vertical bars of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0036] Fig. 22It is a schematic diagram of a second installation structure of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0037] Fig.23 It is a schematic diagram of the second installation structure of the wall groove of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention;
[0038] Fig.24 It is a third installation structure schematic diagram of the assembled combination device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention. DETAILED DESCRIPTION
[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:
[0040] Figure 3 This is a schematic diagram of the first installation structure of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention. Figure 4 It is a structural schematic diagram of the first U-shaped groove of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Figure 5 It is a structural schematic diagram of the second inverted U-shaped groove of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Figure 6 It is a schematic structural cross-sectional view of a positioning member of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall according to the present invention, Figure 7 It is a structural schematic diagram of the positioning member of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Figure 8 It is a schematic structural cross-sectional view of the first pressure strip of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Fig. 9 It is a structural schematic diagram of the first pressure strip of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Fig.12 It is a schematic cross-sectional view of a column of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall according to the present invention, Fig.13 It is a structural schematic diagram of the columns of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Fig.14 2 is a cross-sectional schematic diagram of a second pressure strip of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall according to the present invention, Fig.15 It is a structural schematic diagram of the second pressure strip of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Fig.16 It is a schematic structural cross-sectional view of a fixing strip of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall according to the present invention, Fig.17 It is a structural schematic diagram of the fixing strip of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Fig.23 This is a schematic diagram of the second installation structure of the wall groove of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Fig.24This is a third installation structure diagram of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, see Figures 3 to 9 , Figures 12 to 17 , 23, 24, an assembled combination device of a heat-insulating fireproof glass non-load-bearing partition wall, which includes: an outer frame composed of multiple wall grooves 1, and a vertical bar 2 is installed in the outer frame; a heat-insulating fireproof glass 5 is installed between the outer frame and the vertical bar 2; the wall groove 1 includes: a second inverted U-shaped groove 12 is buckled in the opening of the first U-shaped groove 11, and a positioning member 13 is installed on the opening of the first U-shaped groove 11, and the positioning member 13 includes an inverted U-shaped positioning strip. The two outer side surfaces are provided with extension strips opposite to each other, and also include: two first beading strips 14 with L-shaped cross-sections are arranged oppositely, the surface of the first side of the first beading strip 14 is against the outer side edge of the extension strip away from the inverted U-shaped positioning strip, and the upper side edge of the first side of the first beading strip 14 and the extension strip and the outer side edge of the inverted U-shaped positioning strip together form a first U-shaped glass groove; the second side of the first beading strip 14 The side of the first U-shaped groove 11 is against the outer wall of the first U-shaped groove 11; a plurality of first screw threads pass through the first side surface of the first bead 14, the inverted U-shaped positioning strip, the second inverted U-shaped groove 12, and the first U-shaped groove 11; the vertical bar 2 includes: two second beading strips 22 are relatively installed on both sides of the column 21, the second beading strip 22 includes: a second U-shaped groove in the middle of the limiting strip, and the second U-shaped groove is installed on the column 21; it also includes: two third beading strips 23 are relatively arranged, the third beading strip 23 includes: a third U-shaped groove in the middle of the fixing strip, the third U-shaped groove is placed between the two limiting strips, and a plurality of second screw threads pass through the third U-shaped groove and are fixed with the column 21; the fixing strip, the limiting strip, and the second U-shaped groove together form a second U-shaped glass groove, and the heat-insulating fireproof glass 5 is installed between the first U-shaped groove 11 and the second U-shaped groove that are relatively arranged. The heat-insulating glass on one side is fixed in the second U-shaped glass groove by fixing the second screw.
[0041] Specifically, the bottom of the first U-shaped groove 11 may be provided with a plurality of round holes and waist-shaped holes for connecting and fixing with the indoor ceiling, floor and wall. The outer width of the second inverted U-shaped groove is the same as the inner width of the first U-shaped groove, so that the second U-shaped groove is buckled into the first U-shaped groove 11.
[0042] Specifically, in the implementation of the present invention, the extension strip may include: a first extension plane and a second extension plane, the first extension plane is slightly longer than the second plane, the fireproof sealing strip is vertically attached to the outer wall of the inverted U-shaped positioning strip, there are a number of waist-shaped holes between the two sides of the opening of the inverted U-shaped positioning strip and the first extension plane and the second extension plane in the middle, and a number of reinforcing support blocks are welded on one side of the first extension plane close to the opening of the inverted U-shaped positioning strip, and the support blocks are provided with round holes. The heat-insulating glass is placed on the first extension plane, and the other glass is placed on the second extension plane.
[0043] Specifically, the width of the bottom of the second U-shaped groove is greater than the width of the opening.
[0044] Furthermore, a door frame is installed between a vertical wall groove 1 and an adjacent vertical mullion 2 .
[0045] Specifically, the door pocket can also be installed between the two vertical bars 2.
[0046] Furthermore, a fourth U-shaped groove is provided on the first side surface of the first pressure strip 14 , and a plurality of first screw threads pass through the fourth U-shaped groove.
[0047] Fig.10 It is a cross-sectional schematic diagram of a covering member of an assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall of the present invention. Fig.11 It is a structural schematic diagram of the cover of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, further comprising a plurality of strip-shaped cover members 4, the cover member 4 comprising: two clamping arms are vertically mounted on one side surface of the cover plate, and the cover member 4 is mounted on the third U-shaped groove and the fourth U-shaped groove. The cover plate is made of aluminum.
[0048] Furthermore, the cross section of the column 21 is in the shape of a bow, and the two end surfaces are parallel, and a plurality of screw holes are arranged on the two parallel end surfaces.
[0049] Fig.18 It is a cross-sectional view of a door frame strip of an assembled assembly of a heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Fig.19 It is a schematic diagram of the structure of the door frame strip of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, Fig. 22 This is a second installation structure diagram of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention, see Fig.18 , 19 22. Further, the door frame includes: a door frame composed of multiple wall grooves, with glass installed in the door frame; a hinge 7 is installed on one side of the door frame, and a door lock and a handle 6 are installed on the other side of the door frame.
[0050] Furthermore, it also includes two door frame strips 3, which are installed on the adjacent vertical wall grooves 1 and vertical bars 2 of the door frame; the hinge 7 is fixed to one door frame strip 3, and the other door frame strip 3 is installed with a lock box matching the door lock.
[0051] Furthermore, fireproof sealing strips are installed in the first U-shaped glass groove and the second U-shaped glass groove.
[0052] Specifically, in the implementation process of the present invention, a combination of heat-insulating fireproof glass 5 and ordinary glass can be used respectively, the heat-insulating fireproof glass 5 is installed on a first U-shaped glass groove and a second U-shaped glass groove relative to each other, and ordinary glass is installed in parallel on another first U-shaped glass groove and a second U-shaped glass groove relative to each other. Since the thickness of the heat-insulating fireproof glass 5 is different from that of ordinary glass, the first U-shaped glass groove can include a first fireproof U-shaped glass groove and a first ordinary U-shaped glass groove of different widths, and the second U-shaped glass groove can include a second fireproof U-shaped glass groove and a second ordinary U-shaped glass groove of different widths.
[0053] Fig. 20 This is a schematic diagram of the first installation structure of the wall groove of the assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention. During installation, the first U-shaped groove 11 of the wall groove 1 is fixed on the ground, and the positioning member 13 is adjusted to the required height and fixed by the first screw. Furthermore, in addition to being connected to the ground, the wall groove 1 can also be used for connection with a solid wall and a ceiling.
[0054] Fig.21 It is a schematic diagram of the installation structure of the vertical bars of the assembled combination device of the heat-insulating fireproof glass non-load-bearing partition wall of the present invention. During installation, the column 21 is vertically installed in two horizontal and parallel wall grooves 1, and the second screw passes through the third pressure strip 23 and is threadedly fixed to the column 21 to firmly fix the heat-insulating fireproof glass 5 and the glass.
[0055] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work or software programming. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.
Claims
1. An assembled assembly device for a heat-insulating fireproof glass non-load-bearing partition wall, characterized in that: include: An outer frame composed of multiple wall grooves, and a mullion is installed in the outer frame; a door cover is installed between a vertical wall groove and adjacent mullions, and the door cover includes a door frame composed of multiple wall grooves, glass is installed in the door frame, and also includes two door frame strips, and the door frame strips are installed on the vertical wall grooves and mullions adjacent to the door frame; a heat-insulating fire-proof glass is installed between the outer frame and the mullions; the wall groove includes: a second inverted U-shaped groove is buckled in the opening of the first U-shaped groove, and a positioning member is installed on the opening of the first U-shaped groove, and the positioning member includes two outer side surfaces of the inverted U-shaped positioning strip that are relatively provided with extension strips, and also includes: two first pressure strips with L-shaped cross-sections are arranged relatively, the surface of the first side of the first pressure strip is against the outer side edge of the extension strip away from the inverted U-shaped positioning strip, and the upper side edge of the first side of the first pressure strip is jointly formed with the extension strip and the outer side edge of the inverted U-shaped positioning strip The first U-shaped glass groove is formed; the side edge of the second side of the first molding is against the outer wall of the first U-shaped groove; multiple first screw threads pass through the first side surface of the first molding, the inverted U-shaped positioning strip, the second inverted U-shaped groove, and the first U-shaped groove; the vertical bar includes: two second moldings are relatively installed on both sides of the column, the second molding includes: a second U-shaped groove is provided in the middle of the limiting strip, and the second U-shaped groove is installed on the column; it also includes: two third moldings are relatively arranged, and the third molding includes: a third U-shaped groove is provided in the middle of the fixing strip, and the third U-shaped groove is placed between the two limiting strips, and multiple second screw threads pass through the third U-shaped groove and are fixed to the column threads; the fixing strip, the limiting strip, and the second U-shaped groove together form a second U-shaped glass groove, and the heat-insulating fire-resistant glass is installed between the first U-shaped groove and the second U-shaped groove which are relatively arranged.
2. The assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall according to claim 1 is characterized in that: A fourth U-shaped groove is provided on the first side surface of the first pressure strip, and a plurality of the first screws are threadedly passed through the fourth U-shaped groove.
3. The assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall according to claim 2 is characterized in that: It also includes a plurality of strip-shaped covering members, wherein the covering members include: two clamping arms are vertically mounted on one side surface of the cover plate, and the covering members are mounted on the third U-shaped groove and the fourth U-shaped groove.
4. The assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall according to claim 1 is characterized in that: The cross section of the column is a bow shape.
5. The assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall according to claim 1 is characterized in that: A hinge is installed on one side of the door frame, and a door lock and a handle are installed on the other side of the door frame.
6. The assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall according to claim 5 is characterized in that: The hinge is fixed to one of the door frame strips, and a lock box matching the door lock is installed on the other door frame strip.
7. The assembled assembly device of the heat-insulating fireproof glass non-load-bearing partition wall according to claim 1 is characterized in that: Fireproof sealing strips are installed in the first U-shaped glass groove and the second U-shaped glass groove.
Citation Information
Patent Citations
Fabricated combination device of heat insulation type fireproof glass non-bearing partition wall
CN216195721U