CN219528250U - Section bar for co-extrusion wallboard internal corner connector - Google Patents

Abstract

The utility model discloses a section bar for a co-extrusion wallboard internal corner connector, relates to a section bar, is mainly used for manufacturing the co-extrusion wallboard internal corner connector, and belongs to the technical field of new materials. The section bar for the co-extrusion wallboard internal corner connecting piece comprises a section bar body structure for the co-extrusion wallboard internal corner connecting piece, wherein the section bar body structure comprises first to eighth vertical plates and first to seventh transverse plates, and a left hollow cavity, a right hollow cavity and a clamping groove are arranged in the section bar body structure. The utility model adopts the design of the internal corner section bar with the fixed cross section shape, can intercept proper lengths from the section bar according to the installation requirement of the wallboard to manufacture internal corner connecting pieces with different specifications, and has high production efficiency. The inner wall boards in two different directions can be integrally installed, and the exposed wall board section is not formed at the joint internal corner of the wall boards, so that the installed wall board is integrally stable and attractive.

Description

Section bar for co-extrusion wallboard internal corner connector

Technical Field

The utility model discloses a section bar for a co-extrusion wallboard internal corner connector, relates to a section bar, is mainly used for manufacturing the co-extrusion wallboard internal corner connector, and belongs to the technical field of new materials.

Background

The plate co-extrusion technology adopts two or more extrusion devices, raw materials with different formulas are respectively extruded through different extruder heads, and then are converged in one die and are co-extruded, so that the obtained plate has a multi-layer structure, and each layer shows different performances due to different raw materials, so that the co-extruded plate has more excellent comprehensive performance than the plate extruded by a single formula. The co-extrusion wallboard using plastic-wood materials as raw materials is a typical representative of the application of the co-extrusion board technology, and has been developed rapidly in recent years. The co-extruded wallboard obtained in this way has the characteristics of ageing resistance on the surface, high pattern selectivity, high strength and high hardness of the structural layer, and is manufactured by adopting cheap raw materials, so that the cost is low. Thus, such co-extruded wallboard is becoming more popular in the marketplace, with greater application.

The co-extrusion wallboard is in the use, often involve the installation of equidirectional wallboard, traditional wallboard mounting technique is all installed respectively along different directions, the wallboard of adjacent wall on-wall installation is mutually unconnected each other, do not do special treatment in the junction of turning, to the wallboard that interior wall used, foretell conventional installation result often can cause reentrant corner department wallboard tip to expose, perhaps appear obvious seam, even appear the gap when more serious, influence the whole after the wallboard is installed pleasing to the eye, and wallboard on the adjacent wall does not form a overall structure, stability is relatively poor. In order to overcome the defects, the utility model discloses a section bar for co-extrusion wallboard internal corner connecting pieces, which is used for processing connecting pieces at internal corners in the wallboard installation process, and is necessary for carrying out end-sealing connection on wallboards in different directions and improving the attractiveness and stability of wallboard use.

Disclosure of Invention

The utility model aims to provide a section bar for a co-extrusion wallboard internal corner connector, which solves the problems of internal corner end-capped connection and attractive appearance in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the section bar for the co-extrusion wallboard internal corner connecting piece comprises a section bar body structure for the co-extrusion wallboard internal corner connecting piece, wherein the section bar body structure for the co-extrusion wallboard internal corner connecting piece comprises a first vertical plate, a second vertical plate, a third vertical plate, a fourth vertical plate, a fifth vertical plate, a sixth vertical plate, a seventh vertical plate, an eighth vertical plate, a first transverse plate, a second transverse plate, a third transverse plate, a fourth transverse plate, a fifth transverse plate, a sixth transverse plate and a seventh transverse plate.

The upper side of the first vertical plate is a first outer transverse side, the left side of the first vertical plate is a first outer vertical side, a first outer convex arc edge is formed between the left end of the first outer transverse side and the upper end of the first outer vertical side, and the lower end of the first outer vertical side is connected with the left upper end of the second outer convex arc edge to form an integral structure; the left side edge of the second vertical plate is a second outer vertical side edge, a first outer concave arc edge is formed between the upper end of the second outer vertical side edge and the right lower end of the second outer convex arc edge, and the lower end of the second outer vertical side edge is connected with the right upper end of the second outer concave arc edge; the left side edge of the third transverse plate is a third outer vertical side edge, the lower side edge of the third transverse plate is a second outer transverse side edge, a third outer convex arc edge is formed between the upper end of the third outer vertical side edge and the left lower end of the second outer concave arc edge, and a fourth outer convex arc edge is formed between the lower end of the third transverse plate and the left end of the second outer transverse side edge; the right side edge of the lower half part of the fourth vertical plate is a fourth outer vertical side edge, and a fifth outer convex arc edge is formed between the lower end of the fourth outer vertical side edge and the right end of the second outer transverse side edge; the lower side of the fourth transverse plate is a third outer transverse side, and a third outer concave arc edge is formed between the left end of the third outer transverse side and the upper end of the fourth outer vertical side; the left side edge of the sixth vertical plate is a fifth outer vertical side edge, the lower side edge of the sixth vertical plate is a fourth outer transverse side edge, the right side edge of the sixth vertical plate is a sixth outer vertical side edge, a fourth outer concave arc edge is formed between the upper end of the fifth outer vertical side edge and the right end of the third outer transverse side edge, a sixth outer convex arc edge is formed between the lower end of the sixth vertical plate and the left end of the fourth outer transverse side edge, and a seventh outer convex arc edge is formed between the right end of the fourth outer transverse side edge and the lower end of the sixth outer vertical side edge; the lower side of the sixth transverse plate is a fifth outer transverse side, and a fifth outer concave arc edge is formed between the left end of the fifth outer transverse side and the upper end of the sixth outer vertical side; the left side edge of the eighth vertical plate is a seventh outer vertical side edge, the lower side edge of the eighth vertical plate is a sixth outer transverse side edge, the right side edge of the eighth vertical plate is an eighth outer vertical side edge, a sixth outer concave arc edge is formed between the upper end of the seventh outer vertical side edge and the right end of the fifth outer transverse side edge, an eighth outer convex arc edge is formed between the lower end of the eighth vertical plate and the left end of the sixth outer transverse side edge, and a ninth outer convex arc edge is formed between the right end of the sixth outer transverse side edge and the lower end of the eighth outer vertical side edge; the seventh transverse plate is characterized in that the lower side of the seventh transverse plate is a seventh outer transverse side, the right side of the seventh transverse plate is a ninth outer vertical side, the upper side of the seventh transverse plate is an eighth outer transverse side, a seventh outer concave arc edge is formed between the left end of the seventh outer transverse side and the upper end of the eighth outer vertical side, a tenth outer convex arc edge is formed between the right end of the seventh transverse plate and the lower end of the ninth outer vertical side, and an eleventh outer convex arc edge is formed between the upper end of the ninth outer vertical side and the right end of the eighth outer transverse side; the right side of the seventh vertical plate is a tenth external vertical side, and an eighth external concave arc edge is formed between the lower end of the tenth external vertical side and the left end of the eighth external transverse side; the upper side of the fifth transverse plate is a ninth outer transverse side, and a twelfth outer convex arc edge is formed between the right end of the ninth outer transverse side and the upper end of the tenth outer vertical side; the left side edge of the fifth vertical plate is an eleventh outer vertical side edge, and a thirteenth outer convex arc edge is formed between the upper end of the eleventh outer vertical side edge and the left end of the ninth outer transverse side edge; the upper side of the fourth transverse plate is a tenth outer transverse side, and a ninth outer concave arc edge is formed between the right end of the tenth outer transverse side and the lower end of the eleventh outer vertical side; the right side of the upper half part of the fourth vertical plate is a twelfth outer vertical side, and a tenth outer concave arc edge is formed between the lower end of the twelfth outer vertical side and the left end of the tenth outer transverse side; the upper side of the first transverse plate is an eleventh outer transverse side, and a fourteenth outer convex arc edge is formed between the right end of the eleventh outer transverse side and the upper end of the twelfth outer vertical side; the left side edge of the third vertical plate is a thirteenth outer vertical side edge, a fifteenth outer convex arc edge is formed between the upper end of the thirteenth outer vertical side edge and the left end of the eleventh outer transverse side edge, and the lower half part of the third vertical plate comprises a first convex edge; the upper side edge of the second transverse plate is a twelfth outer transverse side edge, and the right end of the twelfth outer transverse side edge is connected with the lower end of the first convex edge to form an eleventh outer concave arc edge; the right side edge of the first vertical plate comprises a second convex edge, a tenth external vertical side edge, a first arc-shaped edge, a fifteenth external vertical side edge, a second arc-shaped edge and a sixteenth external vertical side edge, a concave edge is arranged in the middle of the fifteenth external vertical side edge, a twelfth external concave arc edge is formed between the lower end of the second convex edge and the left end of the twelfth external transverse side edge, and the upper end of the second convex edge is connected with the lower end of the fourteenth external vertical side edge to form an integral structure; a second arc-shaped edge is formed between the upper end of the tenth external vertical side edge and the lower end of the sixteenth external vertical side edge; a sixteenth outer convex arc edge is formed between the upper end of the sixteenth outer vertical side edge and the right end of the first outer transverse side edge.

The lower side edge of the second transverse plate is a first inner transverse side edge; the right side edge of the second vertical plate is a first inner vertical side edge; the upper side edge of the third transverse plate is a second inner transverse side edge; the left side edge of the fourth vertical plate is a second inner vertical side edge; the lower side edge of the first transverse plate is a concave side edge with a lower opening; the right side edge of the third vertical plate is a third inner vertical side edge; a first inner concave arc edge is formed between the left end of the first inner transverse side edge and the upper end of the first inner vertical side edge, and a first inner convex arc edge is formed between the right end of the first inner transverse side edge and the lower end of the third inner vertical side edge; a second inner concave arc edge is formed between the left end of the second inner transverse side edge and the lower end of the first inner vertical side edge, and a third inner concave arc edge is formed between the right end of the second inner transverse side edge and the lower end of the second inner vertical side edge; the left end of the lower opening concave side edge is connected with the upper end of the third inner vertical side edge to form an integral structure, and the right end of the lower opening concave side edge is connected with the upper end of the second inner vertical side edge to form an integral structure.

The lower side edge of the fifth transverse plate is a third inner transverse side edge; the right side edge of the fifth vertical plate is a fourth inner vertical side edge; the upper side edge of the sixth transverse plate is a fourth inner transverse side edge; the left side edge of the seventh vertical plate is a fifth inner vertical side edge; a fourth concave arc edge is formed between the upper end of the fourth inner vertical side and the left end of the third inner transverse side, and a fifth concave arc edge is formed between the lower end of the fourth inner vertical side and the left end of the fourth inner transverse side; and a sixth concave arc edge is formed between the lower end of the fifth inner vertical side edge and the right end of the fourth inner transverse side edge, and a seventh concave arc edge is formed between the upper end of the fifth inner vertical side edge and the right end of the third inner transverse side edge.

The left hollow cavity is formed among the first inner transverse side edge, the first inner concave arc edge, the first inner vertical side edge, the second inner concave arc edge, the second inner transverse side edge, the third inner concave arc edge, the second inner vertical side edge, the lower opening inner concave side edge, the third inner vertical side edge and the first inner convex arc edge; and a right hollow cavity is formed among the third inner transverse side edge, the fourth inner concave arc edge, the fourth inner vertical side edge, the fifth inner concave arc edge, the fourth inner transverse side edge, the sixth inner concave arc edge, the fifth inner vertical side edge and the seventh inner concave arc edge.

And clamping grooves are formed among the thirteenth outer vertical side edge, the first raised side edge, the eleventh outer concave arc side edge, the tenth outer transverse side edge, the twelfth outer concave arc side edge, the second raised side edge and the tenth outer vertical side edge.

Preferably, the section bar for the co-extrusion wallboard internal corner connecting piece is made of plastic wood, and the plastic wood is made of polyethylene-based plastic wood.

Compared with the prior art, the utility model has the beneficial effects that:

1. the design of the internal corner section bar with the fixed cross section shape is adopted, the section bar can be cut into proper lengths according to the installation requirement of the wallboard, internal corner connecting pieces with different specifications can be manufactured, and the production efficiency is high.

2. The double design of the clamping grooves and the seventh transverse plates is adopted, when the inner wall plates are installed in two different directions, the inserting plate on the wall plate in one direction can be directly inserted into the clamping groove of the internal corner connecting piece formed by the profile, meanwhile, the seventh transverse plates can be used as the inserting plate to be inserted into the clamping groove of the wall plate in the other direction, so that the inner wall plates in two different directions are integrally installed, seamless installation is realized at the internal corner of the wall plate in two directions, exposed wall plate sections are not arranged at the corner of the internal corner, and the overall stability and the aesthetic degree of the wall plate are greatly improved.

3. The left and right hollow cavity designs are adopted, and the section bar for the co-extrusion wallboard internal corner connecting piece is lighter in weight and lower in cost than the solid section bar.

Drawings

The utility model will be further described with reference to the accompanying drawings in which:

fig. 1 is a schematic perspective view of the present utility model.

FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1.

Fig. 3 is a schematic diagram of the front view structure of the present utility model.

01-first riser, 02-second riser, 03-third riser, 04-fourth riser, 05-fifth riser, 06-sixth riser, 07-seventh riser, 08-eighth riser, 09-first cross-plate, 010-second cross-plate, 011-third cross-plate, 012-fourth cross-plate, 013-fifth cross-plate, 014-sixth cross-plate, 015-seventh cross-plate, 1-first outer lateral edge, 2-first outer arcuate edge, 3-first outer arcuate edge, 4-second outer arcuate edge, 5-first outer concave arcuate edge, 6-second outer arcuate edge, 7-second outer concave arcuate edge, 8-third outer arcuate edge, 9-third outer arcuate edge, 10-fourth outer arcuate edge, 11-second outer lateral edge, 12-fifth outer arcuate edge, 13-fourth outer vertical side, 14-third outer concave side, 15-third outer lateral side, 16-fourth outer concave side, 17-fifth outer vertical side, 18-sixth outer convex side, 19-fourth outer lateral side, 20-seventh outer convex side, 21-sixth outer vertical side, 22-fifth outer concave side, 23-fifth outer lateral side, 24-sixth outer concave side, 25-seventh outer vertical side, 26-eighth outer convex side, 27-sixth outer lateral side, 28-ninth outer convex side, 29-eighth outer vertical side, 30-seventh outer concave side, 31-seventh outer lateral side, 32-tenth outer convex side, 33-ninth outer vertical side, 34-eleventh outer convex side, 35-eighth outer lateral side, 36-eighth outer concave arc edge, 37-tenth outer vertical edge, 38-twelfth outer arc edge, 39-ninth outer lateral edge, 40-thirteenth outer arc edge, 41-eleventh outer vertical edge, 42-ninth outer concave arc edge, 43-tenth outer lateral edge, 44-tenth outer concave arc edge, 45-twelfth outer vertical edge, 46-fourteenth outer arc edge, 47-eleventh outer lateral edge, 48-fifteenth outer arc edge, 49-thirteenth outer vertical edge, 50-first convex edge, 51-eleventh outer concave arc edge, 52-tenth outer lateral edge, 53-twelfth outer concave arc edge, 54-second convex edge, 55-tenth outer vertical edge, 56-first arc edge, 57-fifteenth outer vertical edge, 58-concave edge, 59-second arcuate edge, 60-sixteenth outer vertical edge, 61-sixteenth outer convex edge, 62-first inner lateral edge, 63-first inner concave arcuate edge, 64-first inner vertical edge, 65-second inner concave arcuate edge, 66-second inner lateral edge, 67-third inner concave arcuate edge, 68-second inner vertical edge, 69-lower open concave side edge, 70-third inner vertical edge, 71-first inner convex arcuate edge, 72-third inner lateral edge, 73-fourth inner concave arcuate edge, 74-fourth inner vertical edge, 75-fifth inner concave arcuate edge, 76-fourth inner lateral edge, 77-sixth inner concave arcuate edge, 78-fifth inner vertical edge, 79-seventh inner concave arcuate edge, 80-left hollow cavity, 81-right hollow cavity, 82-clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a section bar for a co-extrusion wallboard internal corner connecting piece, which can be used for rapidly processing and manufacturing the internal corner connecting piece for wallboard installation, can improve the overall installation effect and stability of the wallboard, and can avoid the phenomenon that the internal corner part is opposite to a joint to influence the appearance when the co-extrusion wallboard is installed.

Referring to fig. 1-3, the profile for the co-extruded wallboard internal corner connector comprises a profile body structure for the co-extruded wallboard internal corner connector, wherein the profile body structure for the co-extruded wallboard internal corner connector is composed of a first riser 01, a second riser 02, a third riser 03, a fourth riser 04, a fifth riser 05, a sixth riser 06, a seventh riser 07, an eighth riser 08, a first diaphragm 09, a second diaphragm 010, a third diaphragm 011, a fourth diaphragm 012, a fifth diaphragm 013, a sixth diaphragm 014 and a seventh diaphragm 015.

A first outer convex arc edge 2 is formed between the left end of the first outer transverse side 1 of the upper side of the first vertical plate 01 and the upper end of the first outer vertical side 3 of the left side of the first vertical plate to form an integral structure, and the lower end of the first outer vertical side 3 is connected with the left upper end of the second outer convex arc edge 4 to form an integral structure; a first outer concave arc edge 5 is formed between the upper end of a second outer vertical side 6 of the left side edge of the second vertical plate 02 and the right lower end of the second outer convex arc edge 4 to form an integral structure, and the lower end of the first outer concave arc edge is connected with the right upper end of the second outer concave arc edge 7 to form an integral structure; a third outer convex arc edge 8 is formed between the upper end of a third outer vertical side edge 9 of the left side edge of the third transverse plate 011 and the left lower end of the second outer concave arc edge 7 to form an integral structure, and a fourth outer convex arc edge 10 is formed between the lower end of the third transverse plate 011 and the left end of the second outer transverse side edge 11 of the lower side edge to form an integral structure; a fifth outer arc edge 12 is formed between the lower end of the fourth outer vertical side edge 13 of the right side edge of the lower half part of the fourth vertical plate 04 and the right end of the second outer transverse side edge 11 to form an integral structure; a third outer concave arc edge 14 is formed between the left end of the third outer transverse side edge 15 of the lower side edge of the fourth transverse plate 012 and the upper end of the fourth outer vertical side edge 13 to form an integral structure; a fourth outer concave arc edge 16 is formed between the upper end of a fifth outer vertical side edge 17 of the left side edge of the sixth vertical plate 06 and the right end of the third outer transverse side edge 15 to form an integral structure, a sixth outer convex arc edge 18 is formed between the upper end of a fourth outer transverse side edge 19 of the lower side edge to form an integral structure, and a seventh outer convex arc edge 20 is formed between the right end of the fourth outer transverse side edge 19 and the lower end of a sixth outer vertical side edge 21 of the right side edge to form an integral structure; a fifth outer concave arc edge 22 is formed between the left end of the fifth outer lateral side 23 of the lower side of the sixth transverse plate 014 and the upper end of the sixth outer vertical side 21 to form an integral structure; a sixth outer concave arc edge 24 is formed between the upper end of the seventh outer vertical side edge 25 of the left side edge of the eighth vertical plate 08 and the right end of the fifth outer transverse side edge 23, an eighth outer convex arc edge 26 is formed between the lower end of the eighth outer vertical side edge and the left end of the sixth outer transverse side edge 27 of the lower side edge to form an integral structure, and a ninth outer convex arc edge 28 is formed between the right end of the sixth outer transverse side edge 27 and the lower end of the eighth outer vertical side edge 29 of the right side edge to form an integral structure; a seventh outer concave arc edge 30 is formed between the left end of a seventh outer transverse side 31 of the lower side of the seventh transverse plate 015 and the upper end of an eighth outer vertical side 29 to form an integral structure, a tenth outer arc edge 32 is formed between the right end of the seventh transverse plate 015 and the lower end of a ninth outer vertical side 33 of the right side to form an integral structure, and an eleventh outer arc edge 34 is formed between the upper end of the ninth outer vertical side 33 and the right end of the eighth outer transverse side 35 of the upper side to form an integral structure; an eighth outer concave arc edge 36 is formed between the lower end of the tenth outer vertical side edge 37 of the right side edge of the seventh vertical plate 07 and the left end of the eighth outer transverse side edge 35 to form an integral structure; a twelfth outer convex arc edge 38 is formed between the right end of the ninth outer transverse side 39 of the upper side of the fifth transverse plate 013 and the upper end 7 of the tenth outer vertical side 3 to form an integral structure; a thirteenth outer convex arc edge 40 is formed between the upper end of the eleventh outer vertical edge 41 on the left side edge of the fifth vertical plate 05 and the left end of the ninth outer transverse edge 39 to form an integral structure; a ninth outer concave arc edge 42 is formed between the right end of the tenth outer transverse side 43 of the upper side edge of the fourth transverse plate 012 and the lower end of the eleventh outer vertical side 41 to form an integral structure; a tenth outer concave arc edge 44 is formed between the lower end of the tenth outer vertical side edge 45 of the right side edge of the upper half part of the fourth vertical plate 04 and the left end of the tenth outer transverse side edge 43 to form an integral structure; a fourteenth outer convex arc edge 46 is formed between the right end of the eleventh outer transverse side 47 of the upper side of the first transverse plate 09 and the upper end of the twelfth outer vertical side 45 to form an integral structure; a fifteenth outer convex arc edge 48 is formed between the upper end of a thirteenth outer vertical edge 49 of the left side edge of the third vertical plate 03 and the left end of an eleventh outer transverse edge 47 to form an integral structure, and the lower half part of the third vertical plate 03 comprises a first convex edge 50; the right end of the tenth external transverse side 52 of the upper side of the second transverse plate 010 is connected with the lower end of the first convex side 50 to form an eleventh external concave arc side 51 to form an integral structure; the right side edge of the first vertical plate 01 comprises a second convex edge 54, a tenth external vertical side edge 55, a first arc edge 56, a fifteenth external vertical side edge 57, a second arc edge 59 and a sixteenth external vertical side edge 60, a concave edge 58 is arranged in the middle of the fifteenth external vertical side edge 57, a twelfth external concave arc edge 53 is formed between the lower end of the second convex edge 54 and the left end of the twelfth external transverse side edge 52 to form an integral structure, and the upper end of the twelfth external concave arc edge 53 is connected with the lower end of the fourteenth external vertical side edge 55 to form an integral structure; a second arc-shaped edge 59 is formed between the upper end of the tenth external vertical side edge 55 and the lower end of the sixteenth external vertical side edge 60 to form a whole structure; a sixteenth outer arcuate edge 61 is formed between the upper end of the sixteenth outer vertical side edge 60 and the right end of the first outer lateral side edge 1 to form a unitary structure.

A first inner concave arc edge 63 is formed between the left end of the first inner transverse side edge 62 of the lower side edge of the second transverse plate 010 and the upper end of the first inner vertical side edge 64 of the right side edge of the second vertical plate 02 to form an integral structure, and a first inner convex arc edge 71 is formed between the right end and the lower end of the third inner vertical side edge 70 of the right side edge of the third vertical plate 03; a second concave arc edge 65 is formed between the left end of the second inner transverse side 66 of the upper side edge of the third transverse plate 011 and the lower end of the first inner vertical side 64 to form an integral structure, and a third concave arc edge 67 is formed between the right end and the lower end of the second inner vertical side 68 of the left side edge of the fourth vertical plate 04 to form an integral structure; the left end of the concave side 69 of the lower opening of the lower side of the first transverse plate 09 is connected with the upper end of the third inner vertical side 70 to form a unitary structure, and the right end is connected with the upper end of the second inner vertical side 68 to form a unitary structure.

A fourth concave arc edge 73 is formed between the left end of the third inner transverse side 72 of the lower side of the fifth transverse plate 013 and the upper end of the fourth inner vertical side 74 of the right side of the fifth vertical plate 05 to form an integral structure, and a seventh concave arc edge 79 is formed between the right end and the upper end of the fifth inner vertical side 78 of the left side of the seventh vertical plate 07 to form an integral structure; a fifth concave arc edge 75 is formed between the left end of the fourth inner transverse side 76 and the lower end of the fourth inner vertical side 74 of the upper side of the sixth transverse plate 014 to form an integral structure, and a sixth concave arc edge 77 is formed between the right end and the lower end of the fifth inner vertical side 78 to form an integral structure.

A left hollow cavity 80 is formed among the first inner transverse side edge 62, the first inner concave arc edge 63, the first inner vertical side edge 64, the second inner concave arc edge 65, the second inner transverse side edge 66, the third inner concave arc edge 67, the second inner vertical side edge 68, the lower opening inner concave side edge 69, the third inner vertical side edge 70 and the first inner convex arc edge 71; right hollow cavity 81 is formed between third inner lateral side 72, fourth inner concave arc side 73, fourth inner vertical side 74, fifth inner concave arc side 75, fourth inner lateral side 76, sixth inner concave arc side 77, fifth inner vertical side 78 and seventh inner concave arc side 79. The design of the left hollow cavity 80 and the right hollow cavity 81 not only reduces the overall weight of the profile and the raw material cost of the profile, but also is beneficial to improving the rigidity and deformation resistance of the profile.

A slot 82 is formed between thirteenth outer vertical side 49, first raised edge 50, eleventh outer concave arcuate edge 51, tenth outer transverse side 52, twelfth outer concave arcuate edge 53, second raised edge 54, and tenth outer vertical side 55. When the connecting piece is made of this profile, the connecting piece is structurally provided with a seventh transverse plate 015, while retaining a clamping groove 82. When the co-extruded wallboards in two directions are installed, the inserting plate at one wallboard end is inserted into the clamping groove 82, meanwhile, the seventh transverse plate 015 on the connecting piece made of the sectional materials is inserted into the clamping groove at the other wallboard end as the inserting plate, after the installation is finished, only the ninth outer transverse side 39, the tenth outer transverse side 43, the eleventh outer transverse side 47 and other side edges on the connecting piece made of the sectional materials can be seen at the corner of the inside corner, and the whole stability and the attractive appearance of the wallboards are ensured instead of the joint or the end face of the joint of the two wallboards.

When the profile for the co-extrusion wallboard internal corner connector is produced, continuous and rapid production of the profile for the co-extrusion wallboard internal corner connector can be realized by adopting a die with the cross section consistent with that of FIG. 2, respectively mixing and extruding various raw materials in different extruders and finally converging the raw materials in the die for extrusion.

It should be noted that, terms such as connection, formation, constitution, and the like mentioned in the embodiment process refer to that the profile is automatically manufactured by using the raw materials in the production process, and no additional manual operation or additional auxiliary connectors are required.

Also, it should be noted that in this document relational terms such as horizontal, vertical, inner, outer, upper, lower, left, right, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of brevity and resource saving. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. The profile for the co-extrusion wallboard internal corner connecting piece is characterized by comprising a profile body structure for the co-extrusion wallboard internal corner connecting piece, wherein the profile body structure for the co-extrusion wallboard internal corner connecting piece consists of a first vertical plate, a second vertical plate, a third vertical plate, a fourth vertical plate, a fifth vertical plate, a sixth vertical plate, a seventh vertical plate, an eighth vertical plate, a first transverse plate, a second transverse plate, a third transverse plate, a fourth transverse plate, a fifth transverse plate, a sixth transverse plate and a seventh transverse plate.

2. The profile for the co-extruded wallboard female corner connector according to claim 1, wherein the upper side of the first vertical plate is a first outer transverse side, the left side of the first vertical plate is a first outer vertical side, a first outer convex arc edge is formed between the left end of the first outer transverse side and the upper end of the first outer vertical side, and the lower end of the first outer vertical side is connected with the left upper end of the second outer convex arc edge to form an integral structure; the left side edge of the second vertical plate is a second outer vertical side edge, a first outer concave arc edge is formed between the upper end of the second outer vertical side edge and the right lower end of the second outer convex arc edge, and the lower end of the second outer vertical side edge is connected with the right upper end of the second outer concave arc edge; the left side edge of the third transverse plate is a third outer vertical side edge, the lower side edge of the third transverse plate is a second outer transverse side edge, a third outer convex arc edge is formed between the upper end of the third outer vertical side edge and the left lower end of the second outer concave arc edge, and a fourth outer convex arc edge is formed between the lower end of the third transverse plate and the left end of the second outer transverse side edge; the right side edge of the lower half part of the fourth vertical plate is a fourth outer vertical side edge, and a fifth outer convex arc edge is formed between the lower end of the fourth outer vertical side edge and the right end of the second outer transverse side edge; the lower side of the fourth transverse plate is a third outer transverse side, and a third outer concave arc edge is formed between the left end of the third outer transverse side and the upper end of the fourth outer vertical side; the left side edge of the sixth vertical plate is a fifth outer vertical side edge, the lower side edge of the sixth vertical plate is a fourth outer transverse side edge, the right side edge of the sixth vertical plate is a sixth outer vertical side edge, a fourth outer concave arc edge is formed between the upper end of the fifth outer vertical side edge and the right end of the third outer transverse side edge, a sixth outer convex arc edge is formed between the lower end of the sixth vertical plate and the left end of the fourth outer transverse side edge, and a seventh outer convex arc edge is formed between the right end of the fourth outer transverse side edge and the lower end of the sixth outer vertical side edge; the lower side of the sixth transverse plate is a fifth outer transverse side, and a fifth outer concave arc edge is formed between the left end of the fifth outer transverse side and the upper end of the sixth outer vertical side; the left side edge of the eighth vertical plate is a seventh outer vertical side edge, the lower side edge of the eighth vertical plate is a sixth outer transverse side edge, the right side edge of the eighth vertical plate is an eighth outer vertical side edge, a sixth outer concave arc edge is formed between the upper end of the seventh outer vertical side edge and the right end of the fifth outer transverse side edge, an eighth outer convex arc edge is formed between the lower end of the eighth vertical plate and the left end of the sixth outer transverse side edge, and a ninth outer convex arc edge is formed between the right end of the sixth outer transverse side edge and the lower end of the eighth outer vertical side edge; the seventh transverse plate is characterized in that the lower side of the seventh transverse plate is a seventh outer transverse side, the right side of the seventh transverse plate is a ninth outer vertical side, the upper side of the seventh transverse plate is an eighth outer transverse side, a seventh outer concave arc edge is formed between the left end of the seventh outer transverse side and the upper end of the eighth outer vertical side, a tenth outer convex arc edge is formed between the right end of the seventh transverse plate and the lower end of the ninth outer vertical side, and an eleventh outer convex arc edge is formed between the upper end of the ninth outer vertical side and the right end of the eighth outer transverse side; the right side of the seventh vertical plate is a tenth external vertical side, and an eighth external concave arc edge is formed between the lower end of the tenth external vertical side and the left end of the eighth external transverse side; the upper side of the fifth transverse plate is a ninth outer transverse side, and a twelfth outer convex arc edge is formed between the right end of the ninth outer transverse side and the upper end of the tenth outer vertical side; the left side edge of the fifth vertical plate is an eleventh outer vertical side edge, and a thirteenth outer convex arc edge is formed between the upper end of the eleventh outer vertical side edge and the left end of the ninth outer transverse side edge; the upper side of the fourth transverse plate is a tenth outer transverse side, and a ninth outer concave arc edge is formed between the right end of the tenth outer transverse side and the lower end of the eleventh outer vertical side; the right side of the upper half part of the fourth vertical plate is a twelfth outer vertical side, and a tenth outer concave arc edge is formed between the lower end of the twelfth outer vertical side and the left end of the tenth outer transverse side; the upper side of the first transverse plate is an eleventh outer transverse side, and a fourteenth outer convex arc edge is formed between the right end of the eleventh outer transverse side and the upper end of the twelfth outer vertical side; the left side edge of the third vertical plate is a thirteenth outer vertical side edge, a fifteenth outer convex arc edge is formed between the upper end of the thirteenth outer vertical side edge and the left end of the eleventh outer transverse side edge, and the lower half part of the third vertical plate comprises a first convex edge; the upper side edge of the second transverse plate is a twelfth outer transverse side edge, and the right end of the twelfth outer transverse side edge is connected with the lower end of the first convex edge to form an eleventh outer concave arc edge; the right side edge of the first vertical plate comprises a second convex edge, a tenth external vertical side edge, a first arc-shaped edge, a fifteenth external vertical side edge, a second arc-shaped edge and a sixteenth external vertical side edge, a concave edge is arranged in the middle of the fifteenth external vertical side edge, a twelfth external concave arc edge is formed between the lower end of the second convex edge and the left end of the twelfth external transverse side edge, and the upper end of the second convex edge is connected with the lower end of the fourteenth external vertical side edge to form an integral structure; a second arc-shaped edge is formed between the upper end of the tenth external vertical side edge and the lower end of the sixteenth external vertical side edge; a sixteenth outer convex arc edge is formed between the upper end of the sixteenth outer vertical side edge and the right end of the first outer transverse side edge.

3. The profile for a co-extruded wallboard female angle connector according to claim 1, wherein the lower side of said second transverse plate is a first inner transverse side; the right side edge of the second vertical plate is a first inner vertical side edge; the upper side edge of the third transverse plate is a second inner transverse side edge; the left side edge of the fourth vertical plate is a second inner vertical side edge; the lower side edge of the first transverse plate is a concave side edge with a lower opening; the right side edge of the third vertical plate is a third inner vertical side edge; a first inner concave arc edge is formed between the left end of the first inner transverse side edge and the upper end of the first inner vertical side edge, and a first inner convex arc edge is formed between the right end of the first inner transverse side edge and the lower end of the third inner vertical side edge; a second inner concave arc edge is formed between the left end of the second inner transverse side edge and the lower end of the first inner vertical side edge, and a third inner concave arc edge is formed between the right end of the second inner transverse side edge and the lower end of the second inner vertical side edge; the left end of the lower opening concave side edge is connected with the upper end of the third inner vertical side edge to form an integral structure, and the right end of the lower opening concave side edge is connected with the upper end of the second inner vertical side edge to form an integral structure.

4. The profile for a female corner connector of a coextruded wall panel according to claim 1, characterized in that the lower side of the fifth transverse plate is a third inner transverse side; the right side edge of the fifth vertical plate is a fourth inner vertical side edge; the upper side edge of the sixth transverse plate is a fourth inner transverse side edge; the left side edge of the seventh vertical plate is a fifth inner vertical side edge; a fourth concave arc edge is formed between the upper end of the fourth inner vertical side and the left end of the third inner transverse side, and a fifth concave arc edge is formed between the lower end of the fourth inner vertical side and the left end of the fourth inner transverse side; and a sixth concave arc edge is formed between the lower end of the fifth inner vertical side edge and the right end of the fourth inner transverse side edge, and a seventh concave arc edge is formed between the upper end of the fifth inner vertical side edge and the right end of the third inner transverse side edge.

5. The profile for a female corner connector of a co-extruded wall panel according to claim 3, wherein a left hollow cavity is formed between the first inner lateral side, the first inner concave arc side, the first inner vertical side, the second inner concave arc side, the second inner lateral side, the third inner concave arc side, the second inner vertical side, the lower opening inner concave side, the third inner vertical side and the first inner convex arc side.

6. The profile for a female corner connector of a co-extruded wallboard of claim 4, wherein a right hollow cavity is formed between the third inner lateral side, the fourth inner concave arc side, the fourth inner vertical side, the fifth inner concave arc side, the fourth inner lateral side, the sixth inner concave arc side, the fifth inner vertical side and the seventh inner concave arc side.

7. The profile for a female corner connector of a co-extruded wall panel according to claim 2, wherein the thirteenth outer vertical side, the first convex side, the eleventh outer concave arc side, the tenth outer transverse side, the twelfth outer concave arc side, the second convex side and the tenth outer vertical side form a clamping groove therebetween.