CN211548598U

CN211548598U - Metal edge folding structure of external corner ceramic tile

Info

Publication number: CN211548598U
Application number: CN201922378614.4U
Authority: CN
Inventors: 何贵平; 谢锦川; 何梦洋
Original assignee: Shenzhen Boshen Engineering Technology Co ltd
Current assignee: Shenzhen Boshen Engineering Technology Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-22
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to an external corner ceramic tile metal edge folding structure, which comprises a first edge folding part, wherein one surface of the first edge folding part facing to a second edge folding part and a longitudinal edge folding part is connected with a connecting part, the connecting part comprises two fixed shafts connected with the end surface of the first edge folding part, the end surface of the fixed shaft far away from the first edge folding part is connected with an arc plate, one surface of the arc plate far away from the first edge folding part is arranged into a cambered surface, the second edge folding part and the longitudinal edge folding part are both provided with connecting parts with the same structure, and the cambered surfaces of the arc plates of the first edge folding part, the second edge folding part and the longitudinal edge folding part are enclosed into a circular ring; the circular ring is provided with a disc in the direction away from the first ceramic tile, one surface of the disc facing the circular ring is provided with a plurality of insertion rods, a through hole is formed between the two fixed shafts of the connecting piece and the arc-shaped plate in a surrounding manner, and the insertion rods on the disc penetrate through the through hole of the connecting piece. The first edge-folding piece, the second edge-folding piece and the longitudinal edge-folding piece are fixedly connected, so that the edge-folding section bar is firmly connected to the ceramic tile.

Description

Metal edge folding structure of external corner ceramic tile

Technical Field

The utility model belongs to the technical field of the architectural decoration technique and specifically relates to an edge structure is received to external corner ceramic tile metal.

Background

In the building decoration work progress, panel or ceramic tile can have interface or gap in the corner butt joint, influence pleasing to the eye, and people can adopt receipts limit section bar to receive limit processing to it usually, receive the limit section bar and play lid seam and transitional action, cover the breach or the sunken of ceramic tile tip. Under the great environment of the humid weather in south or the difference in temperature in the north, use a period after, the ceramic tile is because expend with heat and contract with cold and produce the change, and the ceramic tile inflation department can produce the effort to receiving the limit section bar, makes the junction of receiving limit section bar and ceramic tile can take place not hard up, and then can follow the ceramic tile and peel off, receives the limit section bar and can't play fixed and the effect of sheltering from.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an edge structure is received to external corner ceramic tile metal can stabilize the connection of receipts limit section bar on the ceramic tile.

The above object of the present invention is achieved by the following technical solutions: a metal edge folding device for an external corner ceramic tile comprises a first ceramic tile and a second ceramic tile perpendicular to the first ceramic tile, wherein a first edge folding part used for shielding the end parts of the first ceramic tile and the second ceramic tile is arranged at the joint of the first ceramic tile and the second ceramic tile, the first ceramic tile and the second ceramic tile are arranged as a third ceramic tile perpendicular to the first ceramic tile and the second ceramic tile, the first ceramic tile, the second ceramic tile and the third ceramic tile form a vertex angle with mutually perpendicular edges, a longitudinal edge folding part is arranged at the joint of the second ceramic tile and the third ceramic tile, a second edge folding part is arranged at the joint of the first ceramic tile and the second ceramic tile, a connecting part is connected to one surface of the first edge folding part facing the second edge folding part and the longitudinal edge folding part, the connecting part comprises two fixing shafts connected with the end surface of the first edge folding part, an arc-shaped plate is connected to the end surface of the fixing shafts far away from the first edge folding part, one surface of the arc-shaped plate far away from the first edge folding part is arranged as an arc-, the cambered surfaces of the arc plates of the first edge folding piece, the second edge folding piece and the longitudinal edge folding piece form a circular ring; the ring is equipped with the disc in keeping away from first ceramic tile direction, and the disc is equipped with many peg graft poles towards the one side of ring, has enclosed into a through-hole between two fixed axles of connecting piece and the arc, and the peg graft pole on the disc passes the through-hole of connecting piece, and the disc is equipped with well axostylus axostyle towards the ring one side, and well axostylus axostyle passes the ring.

Through adopting above-mentioned technical scheme, with first receipts limit piece, the junction of second receipts limit piece and vertical receipts limit piece is all established by the connecting piece, the cambered plate concatenation on the three connecting piece forms a ring, couple together the ring through the disc, thereby can be with first receipts limit piece, the second is received limit piece and vertical receipts limit piece and is fixed, first receipts limit piece, the second is received limit piece and vertical receipts limit piece and is connected each other, make between the three obtain better support in the edge of ceramic tile, produce the interact, and then the receipts limit piece of ceramic tile junction is connected more firm, when one of them receives the limit piece and receives pressure ring rupture, be difficult for droing.

Preferably, the side of the disc far away from the circular ring is connected with an arc-shaped panel, the insertion rod and the middle shaft rod are both provided with expansion bolt sleeves, and the side of the arc-shaped panel facing the disc is provided with expansion bolt rods matched with the expansion bolt sleeves.

Through adopting above-mentioned technical scheme, peg graft pole and well axostylus axostyle all establish to the inflation bolt cover, make the disc more firm with being connected of ceramic tile, the inflation nail pole on the arc panel inserts in the inflation bolt cover, make the arc panel connect closely on the inflation bolt cover of disc, adopt the inflation nail pole to insert in order to fix the inflation bolt cover in the ceramic tile, the inflation nail pole inserts the inflation bolt cover, the inflation nail pole expands whole inflation bolt cover, inflation screw makes the ring fix on the ceramic tile more firmly with the disc with being connected of inflation bolt cover, make first receipts limit piece, the second receipts limit piece, vertical receipts limit piece and arc panel become interconnect's whole, and then difficult follow ceramic tile and drop.

Preferably, all be equipped with the mounting on the side that first receipts limit piece and first ceramic tile and second ceramic tile are connected, the mounting includes the deflector of two "L" types, and two relative "L" deflectors have formed an holding tank, and one side that first receipts limit piece was kept away from to the mounting is connected with the rubber slab, and the rubber slab is equipped with the sand grip the same with holding tank size, shape in the holding tank towards the one side of mounting, and the sand grip is pegged graft in the holding tank.

Through adopting above-mentioned technical scheme, set up the rubber slab between ceramic tile and first receipts limit piece, fix the rubber slab on first receipts limit piece through the mounting, take place expend with heat and contract with cold when the ceramic tile that first receipts limit piece and first receipts limit piece are connected, when the volume changes, the rubber slab provides ceramic tile "extension" space for expend with heat and contract with cold of ceramic tile, slows down the effort of the expanded change of ceramic tile to first receipts limit piece effectively, is difficult to again receive the limit at the metal and produces the space.

Preferably, the rubber slab is equipped with the arch of bar on keeping away from the side of sand grip, and the arch extends along the length direction of rubber slab, is equipped with on the first ceramic tile of being connected with first receipts limit piece with protruding size, shape assorted mounting groove, second receipts limit piece and vertical receipts limit piece also are equipped with the same mounting and the rubber slab with first receipts limit piece.

Through adopting above-mentioned technical scheme, the protruding area of contact that has increased rubber slab and connect the ceramic tile that makes first receipts limit piece and first receipts limit piece be connected is connected inseparabler.

Preferably, the side, far away from first ceramic tile and second ceramic tile, of first receipts limit piece is the cambered surface, and second receipts limit piece also has the same structure with vertical receipts limit piece.

Through adopting above-mentioned technical scheme, utilize first receipts limit piece to connect the gap between first ceramic tile and the second ceramic tile, make first ceramic tile and second ceramic tile be difficult for droing, the one side of keeping away from first ceramic tile and second ceramic tile with first receipts limit piece is the cambered surface, make first ceramic tile and second ceramic tile and first receipts limit piece connect the transition more level and smooth, the second is received limit piece and is vertically received limit piece and also establish same structure, the circular arc setting of metal receipts limit piece reduces people and is passed through the probability that the external corner is scratched.

Preferably, the first ceramic tile is in a step shape at the joint with the edge of the arc surface of the first edge folding piece, and the plate connected with the arc surface of the first edge folding piece is a connecting plate.

Through adopting above-mentioned technical scheme, the echelonment setting of first ceramic tile can make the transition of being connected of first receipts limit piece and first ceramic tile more level and smooth, promotes user's use and experiences.

Preferably, the cambered surface both ends of first receipts limit piece are equipped with the gusset plate respectively, and the gusset plate extends along the length direction of first receipts limit piece, and the gusset plate is connected with the connecting plate towards the one side of first ceramic tile.

By adopting the technical scheme, the reinforcing plate can shield the adhesive at the joint and the closing-in part, so that the attractiveness of the product is improved; meanwhile, the bonding part is protected from being cracked due to external action, and the service life of the bonding agent is prolonged.

Preferably, the first edge-closing piece, the second edge-closing piece and the longitudinal edge-closing piece are all made of aluminum alloy.

By adopting the technical scheme, the aluminum alloy has the characteristics of low density, light weight and high strength, has good mechanical property and corrosion resistance after heat treatment, and the edge-folding piece made of the aluminum alloy is low in price, good in quality and high in cost performance.

Preferably, the rubber sheet is made of Ethylene Propylene Diene Monomer (EPDM) rubber.

By adopting the technical scheme, the Ethylene Propylene Diene Monomer (EPDM) rubber has heat resistance, weather resistance and aging resistance, the molecular structure of the EPDM rubber has an electrodeless substituent group, the molecular cohesive energy is low, a molecular chain can keep flexibility in a wider range, the water absorption rate is low, the EPDM rubber can be subjected to thermal shrinkage after being heated, the ceramic tile and the edge folding part are subjected to thermal expansion and cold shrinkage, the acting force of the expansion change of the ceramic tile on the edge folding part can be effectively relieved by using the EPDM rubber material, a gap is not easy to generate in the metal edge folding, and the metal edge folding part is more stably connected with the ceramic tile.

To sum up, the utility model discloses a beneficial technological effect does:

1. with first receipts limit piece, the junction of second receipts limit piece and vertical receipts limit piece is all established by the connecting piece, the circular ring of cambered plate concatenation formation on the three connecting piece, couple together the circular ring through the disc, thereby can be with first receipts limit piece, second receipts limit piece and vertical receipts limit piece are fixed, make support and interact better in the edge of ceramic tile between the three, adopt the inflation nail pole to insert in order to fix the inflation bolt cover in the ceramic tile, the inflation nail pole inserts the inflation bolt cover, the inflation nail pole expands full whole inflation bolt cover, and then the more firm that the receipts limit piece of ceramic tile junction is connected, when one of them receipts limit piece received the pressure broken ring, be difficult for droing.

2. The rubber slab all adopts Ethylene Propylene Diene Monomer (EPDM) rubber preparation, when ambient temperature risees, the ceramic tile expend with heat changes, when the expanded ceramic tile of being heated is to receiving limit spare application of force, the rubber slab provides ceramic tile "extension" space because of expend with heat and contract with cold for the ceramic tile, simultaneously because Ethylene Propylene Diene Monomer (EPDM) rubber is heated the pyrocondensation, can slow down the expanded change metal of ceramic tile effectively and receive the effort of limit spare, be difficult to again produce the space in receipts limit, can solve the ceramic tile expend with heat effectively and change the not hard up problem of messenger receipts limit spare, the firm limit spare of receiving is connected with the ceramic tile.

Drawings

Fig. 1 is a schematic view of the explosion structure of a disc in an external corner ceramic tile edging.

Fig. 2 is a schematic view of an explosion structure of an arc-shaped panel in an external corner ceramic tile edge-closing piece.

Fig. 3 is a partial structure schematic view of the metal edge-closing member.

In the figure, 11, the first tile; 12. a second tile; 13. a third tile; 21. a longitudinal edging; 22. a first edging; 23. a second edge trim; 3. a connecting member; 31. a fixed shaft; 32. an arc-shaped plate; 33. a through hole; 4. a disc; 41. a plug rod; 42. a middle shaft lever; 5. an arcuate panel; 51. expanding the nail rod; 6. a fixing member; 61. a guide plate; 62. accommodating grooves; 7. a rubber plate; 71. a convex strip; 72. a protrusion; 81. a connecting plate; 82. and a reinforcing plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-3.

Referring to fig. 1 and 2, for the metal edge folding structure of the external corner ceramic tile disclosed by the present invention, comprising a first ceramic tile 11 and a second ceramic tile 12 perpendicular to the first ceramic tile 11, wherein a first edge folding member 22 for shielding the end portions of the first ceramic tile 11 and the second ceramic tile 12 is disposed at the joint of the first ceramic tile 11 and the second ceramic tile 12, a third ceramic tile 13 is disposed perpendicular to the first ceramic tile 11 and the second ceramic tile 12, the first ceramic tile 11, the second ceramic tile 12 and the third ceramic tile 13 form a vertex angle with mutually perpendicular edges, a longitudinal edge folding member 21 is disposed at the joint of the second ceramic tile 12 and the third ceramic tile 13, a second edge folding member 23 is disposed at the joint of the first ceramic tile 11 and the second ceramic tile 12, a connecting member 3 is connected to the first edge folding member 22 facing the second edge folding member 23 and the longitudinal edge folding member 21, the connecting member 3 comprises two fixing shafts 31 connected to the end surface of the first edge folding member 22, the end face, far away from the first edge folding piece 22, of the fixed shaft 31 is connected with an arc-shaped plate 32, one face, far away from the first edge folding piece 22, of the arc-shaped plate 32 is an arc face, the second edge folding piece 23 and the longitudinal edge folding piece 21 are provided with connecting pieces 3 with the same structure, and the arc faces of the arc-shaped plates 32 of the first edge folding piece 22, the second edge folding piece 23 and the longitudinal edge folding piece 21 are enclosed to form a closed circular ring; be equipped with disc 4 on the ring is kept away from first ceramic tile 11 direction, disc 4 is equipped with many spliced poles 41 towards the one side of ring, has enclosed into a through-hole 33 between two fixed axles 31 of connecting piece 3 and the arc 32, and spliced pole 41 on the disc 4 passes the through-hole 33 of connecting piece 3, and disc 4 is equipped with well axostylus axostyle 42 towards the ring one side, and well axostylus axostyle 42 passes the ring. Connect the ring through disc 4 to can be with first receipts limit piece 22, second receipts limit piece 23 and vertical receipts limit piece 21 are fixed, first receipts limit piece 22, second receipts limit piece 23 and vertical receipts limit piece 21 link together, make between the three link together more closely in the edge of ceramic tile, and then the receipts limit piece of ceramic tile junction connects more firmly, because the relation of connection between the three, when one of them receipts limit piece receives pressure to destroy difficult not hard up and then drops.

Referring to fig. 2, an arc panel 5 is connected to a side of the circular disc 4 away from the circular ring, the shape of the arc panel 5 is matched with a gap formed at the edge of the tile by the first edging member 22, the second edging member 23 and the longitudinal edging member 21, the insertion rod 41 and the middle shaft rod 42 are both provided as expansion bolt sleeves, an expansion bolt rod 51 matched with the expansion bolt sleeves is arranged on a side of the arc panel 5 facing the circular disc 4, so that the connection between the circular disc 4 and the tile is firmer, the expansion bolt rod 51 on the arc panel 5 is inserted into the expansion bolt sleeves, when the expansion bolt rod 51 is inserted into the expansion bolt sleeves, the expansion bolt rod 51 expands to the whole expansion bolt sleeves, because the expansion bolt sleeves are inserted into the tile, the expansion bolt sleeves expand in the adjacent tiles and are tightly fixed in the tiles, the expansion bolt rod 51 is also fastened in the expansion bolt sleeves, so that the arc panel 5 is fixed on the tiles, the expansion bolt sleeve is more firmly fixed on the ceramic tile, and the ring is more firmly fixed between arc panel 5 and ceramic tile with disc 4 for first receipts limit piece 22, second receipts limit piece 23, vertical receipts limit piece 21 and arc panel 5 become interconnect's whole, and then be difficult for coming off from the ceramic tile.

Referring to fig. 2 and 3, the fixing members 6 are disposed on the side surfaces of the first edge-closing member 22 connected to the first tile 11 and the second tile 12, each fixing member 6 includes two "L" -shaped guide plates 61, each two opposite "L" -shaped guide plates 61 form an accommodating groove 62, one side of each fixing member 6, which is far away from the first edge-closing member 22, is connected to a rubber plate 7, one surface of each rubber plate 7, which faces the fixing member 6, is provided with a protruding strip 71, which has the same size and shape as the accommodating grooves 62, and the protruding strip 71 is inserted into the accommodating grooves 62. Set up rubber slab 7 between ceramic tile and first receipts limit piece 22, fix rubber slab 7 on first receipts limit piece 22 through mounting 6, take place expend with heat and contract with cold as the ceramic tile that first receipts limit piece 22 and first receipts limit piece 22 are connected, when the volume changes, rubber slab 7 provides ceramic tile "extension" space for expend with heat and contract with cold of ceramic tile, slow down the expanded change of ceramic tile effectively and to the effort of first receipts limit piece 22, be difficult to again receive the limit at the metal and produce the space. The rubber sheet 7 is made of Ethylene Propylene Diene Monomer (EPDM) rubber. Ethylene Propylene Diene Monomer (EPDM) rubber has heat resistance, weather resistance and aging resistance, a molecular structure thereof has an electrodeless substituent group, the molecular cohesive energy is low, a molecular chain can keep flexibility in a wider range, the water absorption rate is low, thermal shrinkage can occur after heating, the ceramic tile and the edge folding piece expand when heated and contract when cooled, the acting force of the expansion change of the ceramic tile on the edge folding piece can be effectively slowed down by using the EPDM rubber material, a gap is not easy to generate at the metal edge folding, and the metal edge folding piece and the ceramic tile are connected more stably.

Referring to fig. 2 and 3, a strip-shaped protrusion 72 is disposed on a side surface of the rubber plate 7 away from the protruding strip 71, the protrusion 72 extends along a length direction of the rubber plate 7, and a mounting groove (not shown) matched with the size and shape of the protrusion 72 is disposed on the first tile 11 connected to the first edge-closing member 22. The protrusion 72 and the protruding strip 71 are formed integrally with the rubber sheet 7, and the second edging 23 and the longitudinal edging 21 are also provided with the same fixing member 6 and rubber sheet 7 as the first edging 22. The protrusion 72 increases the contact area between the rubber sheet 7 and the first tile 11 connected to the rubber sheet 7, so that the tile connection between the first edge member 22 and the first edge member 22 is more tight.

Referring to fig. 1 and 2, the first edge-receiving member 22 has a curved surface on a side thereof away from the first and

second tiles

11 and 12, and the second edge-receiving member 23 and the longitudinal edge-receiving member 21 have the same structure. First receipts limit piece 22, second receipts limit piece 23 and vertical receipts limit piece 21 are the fan-shaped structure of right angle, the one side of keeping away from first ceramic tile 11 and second ceramic tile 12 with first receipts limit piece 22 is the cambered surface, make first ceramic tile 11 and second ceramic tile 12 and first receipts limit piece 22 connect the transition more level and smooth, the second is received limit piece 23 and is vertically received limit piece 21 and also establish same structure, make the ceramic tile link up with receipts limit piece more, in order to avoid receiving limit piece edge too sharp-pointed, can reduce the probability of passing through the external corner department with people's scratch.

Referring to fig. 2 and 3, the first tile 11 is stepped at the connection point with the arc edge of the first edge retainer 22, and the first tile 11 is provided with a connection plate 81 at the connection point with the first edge retainer 22. The stair-shaped arrangement of the first ceramic tile 11 can make the connection transition between the first edge-closing member 22 and the first ceramic tile 11 smoother, and improve the use experience of a user.

Referring to fig. 2 and 3, reinforcing plates 82 are respectively disposed at two ends of the arc surface of the first edge-closing member 22, the reinforcing plates 82 extend along the length direction of the first edge-closing member 22, and one surface of the reinforcing plates 82 facing the first tile 11 is connected to the connecting plate 81. The reinforcing plate 82 can shield the adhesive at the connecting part, so that the attractiveness of the product is improved; meanwhile, the bonding part is protected from being cracked due to external action, and the service life of the bonding agent is prolonged.

Referring to fig. 1, the first bead member 22, the second bead member 23, and the longitudinal bead member 21 are each made of an aluminum alloy. The aluminum alloy has the characteristics of low density, light weight and high strength, has good mechanical property and corrosion resistance after heat treatment, and the edge-folding piece made of the aluminum alloy is low in price, good in quality and high in cost performance.

The implementation principle of the embodiment is as follows: the circular rings are connected through the expansion bolt sleeves on the circular discs 4, so that the first edge folding piece 22, the second edge folding piece 23 and the longitudinal edge folding piece 21 can be fixed, the first edge folding piece 22, the second edge folding piece 23 and the longitudinal edge folding piece 21 are connected with one another, the three pieces are better related to one another at the edge of the ceramic tile, the connection of the edge folding pieces at the connection position of the ceramic tile is more stable, and one edge folding piece is not easy to loosen and fall off when broken under pressure due to the connection relationship among the three pieces; when the expansion nail rod 51 on the arc-shaped panel 5 is inserted into the expansion bolt sleeve, the arc-shaped panel 5 is tightly connected on the expansion bolt sleeve, so that the connection between the disc 4 and the ceramic tile is more stable. Rubber slab 7 all adopts Ethylene Propylene Diene Monomer (EPDM) rubber preparation, and Ethylene Propylene Diene Monomer (EPDM) rubber is heated pyrocondensation, can slow down the expanded change of ceramic tile effectively to the effort of receiving the limit piece, is difficult to again produce the space receiving the limit piece for the ceramic tile is connected more firmly with receiving the limit piece.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an edge structure is received to external corner ceramic tile metal, including first ceramic tile (11), second ceramic tile (12) of the first ceramic tile of perpendicular to (11), the junction of first ceramic tile (11) and second ceramic tile (12) is equipped with first receipts limit spare (22) that are used for sheltering from first ceramic tile (11) and second ceramic tile (12) tip, establish to third ceramic tile (13) perpendicular to first ceramic tile (11) and second ceramic tile (12), first ceramic tile (11), second ceramic tile (12) and third ceramic tile (13) form the mutually perpendicular apex angle of edge, the junction of second ceramic tile (12) and third ceramic tile (13) is equipped with vertical receipts limit spare (21), the junction of first ceramic tile (11) and second ceramic tile (12) is equipped with second and receives limit spare (23), its characterized in that: the connecting piece (3) is connected to one face, facing the second edge folding piece (23), of the first edge folding piece (22) and one face, facing the longitudinal edge folding piece (21), of the first edge folding piece (22), the connecting piece (3) comprises two fixing shafts (31) connected with the end face of the first edge folding piece (22), an arc-shaped plate (32) is connected to the end face, far away from the first edge folding piece (22), of each fixing shaft (31), the arc-shaped plate (32) is arranged on the side, far away from the first edge folding piece (22), of each arc-shaped plate (32), the second edge folding piece (23) and the longitudinal edge folding piece (21) are provided with the connecting pieces (3) of the same structure, and the arc-shaped faces of the arc-shaped plates (32) of the first edge folding piece (22), the second edge folding piece (23) and the longitudinal; be equipped with disc (4) on the ring is kept away from first ceramic tile (11) direction, be equipped with many spliced poles (41) on disc (4) the one side towards the ring, enclosed into a through-hole (33) between two fixed axles (31) of connecting piece (3) and arc (32), spliced pole (41) on disc (4) pass through-hole (33) of connecting piece (3), disc (4) are equipped with well axostylus axostyle (42) towards the ring one side, well axostylus axostyle (42) pass the ring.

2. The metal edging structure of an external corner ceramic tile as claimed in claim 1, wherein: the expansion bolt sleeve is characterized in that an arc-shaped panel (5) is connected to one surface, far away from the circular ring, of the disc (4), the insertion rod (41) and the middle shaft rod (42) are both provided with expansion bolt sleeves, and one surface, facing the disc (4), of the arc-shaped panel (5) is provided with an expansion bolt rod (51) matched with the expansion bolt sleeves.

3. The metal edging structure of an external corner ceramic tile as claimed in claim 1, wherein: all be equipped with mounting (6) on the side that first receipts limit piece (22) and first ceramic tile (11) and second ceramic tile (12) are connected, mounting (6) include deflector (61) of two "L" types, two relative "L" deflectors (61) have formed an holding tank (62), one side that first receipts limit piece (22) was kept away from in mounting (6) is connected with rubber slab (7), rubber slab (7) are equipped with on the one side towards mounting (6) with holding tank (62) size, sand grip (71) that the shape is the same, sand grip (71) are pegged graft in holding tank (62).

4. The metal edging structure for external corner tiles according to claim 3, characterized in that: be equipped with protruding (72) of bar on the side of sand grip (71) is kept away from in rubber slab (7), protruding (72) extend along the length direction of rubber slab (7), be equipped with on first ceramic tile (11) of being connected with first receipts limit piece (22) with protruding (72) size, shape assorted mounting groove, second receipts limit piece (23) also are equipped with the same mounting (6) of first receipts limit piece (22) and rubber slab (7) with vertical receipts limit piece (21).

5. The metal edging structure of an external corner ceramic tile as claimed in claim 1, wherein: one surface of the first edge-closing piece (22) far away from the first ceramic tile (11) and the second ceramic tile (12) is an arc surface, and the second edge-closing piece (23) and the longitudinal edge-closing piece (21) also have the same structure.

6. The metal edging structure of an external corner ceramic tile as claimed in claim 5, wherein: the first ceramic tile (11) is in a step shape at the joint of the first edge folding piece (22) and the cambered surface edge, and the first ceramic tile (11) is provided with a connecting plate (81) at the joint of the first edge folding piece (22).

7. The metal edging structure for external corner tiles according to claim 6, wherein: and reinforcing plates (82) are respectively arranged at two ends of the cambered surface of the first edge-folding piece (22), the reinforcing plates (82) extend along the length direction of the first edge-folding piece (22), and one surface, facing the first ceramic tile (11), of each reinforcing plate (82) is connected with the connecting plate (81).

8. The metal edging structure of an external corner ceramic tile as claimed in claim 1, wherein: the first edge-closing piece (22), the second edge-closing piece (23) and the longitudinal edge-closing piece (21) are all made of aluminum alloy.

9. The metal edging structure for external corner tiles according to claim 4, wherein: the rubber plate (7) is prepared from Ethylene Propylene Diene Monomer (EPDM) rubber.