CN220133359U - Assembled wall flush joint structure - Google Patents

Abstract

The utility model provides an assembled wall flush joint structure, including wallboard, splice and wallboard fixed subassembly, be equipped with the splice groove that is used for grafting splice on the wallboard lateral wall, splice's both ends are pegged graft respectively in the splice groove on two wallboards, thereby splice the equipment with two wallboards through the splice, wallboard fixed subassembly is connected with the concatenation department of wallboard, thereby fix the wallboard on the wall, carry out preliminary assembly connection to two wallboards through the splice, the clearance between the unified wallboard, improve the whole aesthetic property of assembled wall, the fixed subassembly of rethread wallboard is further to the concatenation department of two wallboards carry out fixed assembly, improve the assembly efficiency of assembled wall, increase the joint strength between assembled wall and the wall, guarantee the overall stability of assembled wall.

Description

Assembled wall flush joint structure

Technical Field

The utility model belongs to the technical field of assembled wall boards, and particularly relates to an assembled wall surface butt joint structure.

Background

The wall protection board is also called as a dado and a wallboard. The wall panel is a novel decorative wall material developed in recent years, and wood and the like are generally adopted as base materials. The wall panel has the advantages of light weight, fire resistance, moth resistance, safe use, obvious decorative effect and the like, so the wall panel is more and more popular with people and is more and more widely used. At present, the installation of the wall panels is connected with the wall body by adopting self-tapping screws or gluing modes, the wall panel structure and the wall body structure are easily damaged by adopting the screws, the wall panels are directly pasted on the wall by adopting the gluing modes, and chemical substances in the glue inevitably pollute the external environment, so that the environment-friendly effect is poor. And the wall panels are installed in two ways, and are greatly influenced by the environmental temperature, and as the thermal expansion coefficients of the wall panels are different from those of the wall panels, the wall panels are easy to deform due to the different expansion and contraction amounts of the wall panels when the environment changes, so that the decoration effect of the wall panels can be influenced.

The utility model of application number CN202110540418.1 discloses a wall panel butt joint structure suitable for ceramic tile composite wall boards, and relates to the technical field of decoration design, the wall panel butt joint structure comprises a first plate, a second plate and a connecting part, wherein one end of the first plate, which is close to the second plate, is provided with a first groove, one end of the second plate, which is close to the first plate, is provided with a second groove, a first clamping piece is arranged in the first groove, a second clamping piece is arranged in the second groove, the connecting part comprises a connecting plate, a fixing plate and a backing plate, at least one part of one end of the connecting plate is positioned in the first clamping piece, and at least one part of one end of the connecting plate, which is far away from the first clamping piece, is positioned in the second clamping piece; the structure of the butt joint structure is complex, so that the cost of the butt joint structure is easy to increase on one hand, and the assembly is not facilitated on the other hand.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide an assembled wall surface butt joint structure and an installation method thereof, which are used for improving the flatness and the attractiveness of an assembled cavity plate.

In order to solve the technical problems, the utility model adopts the technical proposal that,

the utility model provides an assembled wall flush joint structure, includes wallboard, splice and wallboard fixed subassembly, is equipped with the splice groove that is used for grafting splice on the wallboard lateral wall, through splice amalgamation between the adjacent wallboard, is equipped with the wallboard slot in the wallboard fixed subassembly, and the wallboard of amalgamation is pegged graft in the wallboard slot.

As a preferable scheme of the utility model, the middle part of the splicing piece is provided with a limiting boss which is arranged between adjacent wallboards so as to control the size of the joint between the wallboards.

As a preferable scheme of the utility model, limit strips are arranged on the edges of two sides of the splicing piece, and the splicing piece is fixed in the splicing groove through the limit strips.

As a preferable scheme of the utility model, the splicing piece comprises a middle limiting strip, an inserting strip and a limiting strip, wherein the inserting strip is respectively connected to two sides of the middle limiting strip, a limiting boss is formed at the joint of the middle limiting strip and the inserting strip, and the limiting strip is connected to the edge of the inserting strip.

As a preferable scheme of the utility model, the splicing groove comprises a limiting groove part, an inserting groove part and a movable groove part which are sequentially connected, wherein a middle limiting strip is arranged on the limiting groove part, an inserting strip is arranged on the inserting groove part, and a limiting strip is arranged on the movable groove part.

As a preferable scheme of the utility model, the end face of the wallboard is provided with a wallboard positioning groove, and the wallboard fixing component is in positioning connection with the wallboard through the wallboard positioning groove.

As a preferred scheme of the utility model, the wallboard fixing component comprises a wallboard mounting buckle, a keel hanging piece and a keel, wherein the wallboard mounting buckle is fixed on a wallboard, and the wallboard mounting buckle is mounted on the keel in a transitional manner through the keel hanging piece.

As a preferable scheme of the utility model, the two sides of the wallboard mounting buckle are provided with the mounting guide ribs and the plugboards, the wallboard mounting buckle is assembled on the wallboard in a positioning way through the mounting guide ribs, and the wallboard mounting buckle is assembled on the keel hanging piece through the plugboards.

As a preferable scheme of the utility model, the two sides of the keel hanging piece are provided with the wallboard slot and the keel fixing slot, the wallboard mounting buckle is inserted in the wallboard slot, and the keel hanging piece is assembled on the keel through the keel fixing slot.

The method for installing the assembled wall surface butt joint structure comprises the following steps,

s1, prefabricating a wallboard, splicing pieces, wallboard mounting buckles, keel hanging pieces and keels;

s2, assembling the wallboard fastener on the wallboard, and assembling the keel hanging piece on the keel;

s3, splicing the wallboards through the splicing pieces;

s4, assembling the spliced wallboard to the keel hanging piece.

The utility model has the beneficial effects that the two wallboards are initially assembled and connected through the splicing piece, the gap between the wallboards is unified, the overall aesthetic property of the assembled wall body is improved, the splicing part of the two wallboards is further fixedly assembled through the wallboard fixing component, the assembly efficiency of the assembled wall body is improved, the connection strength between the assembled wall body and the wall surface is increased, and the overall stability of the assembled wall body is ensured.

Drawings

Fig. 1 is an assembled schematic view of the present butt joint structure.

Fig. 2 is a top view of the present butt joint structure.

Fig. 3 is a schematic structural view of the wallboard mounting clasp.

Fig. 4 is a schematic structural view of a keel hanger.

Fig. 5 is a schematic structural view of the splice.

Reference numerals: the wallboard mounting buckle 1, the buckle limiting part 1-1, the buckle inserting part 1-2, the buckle 1-3, the guide rib 1-4, the guide groove through hole 1-5, the plugboard 1-6, the plugboard groove 1-7, the buckle screw hole 1-8, the groove 1-9, the wallboard 2, the wallboard positioning groove 2-1, the splicing groove 2-2, the limiting groove part 2-3, the inserting groove part 2-4, the movable groove part 2-5, the keel 3, the keel hanging piece 4, the wallboard inserting groove 4-3, the inserting groove unit 4-4, the keel fixing groove 4-5, the hanging piece plate 4-6, the fixing groove plate 4-7, the hanging piece fixing hole 4-8, the light-weight groove 4-9, the unit inserting groove plate 4-10, the through groove 4-11, the hanging piece grooving 4-12, the edge fixing hole 4-13, the central fixing hole 4-14, the splicing piece 5, the limiting boss 5-1, the limiting strip 5-2, the middle limiting strip 5-3 and the inserting strip 5-4.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The utility model provides an assembled wall flush joint structure, including wallboard 2, splice 5 and wallboard fixed subassembly, be equipped with the splice 2-2 that is used for pegging graft splice 5 on the wallboard 2 lateral wall, splice 5's both ends are pegged graft respectively in splice 2-2 on two wallboards 2, thereby carry out the amalgamation equipment with two wallboards 2 through splice 5, wallboard fixed subassembly is connected with the concatenation department of wallboard 2, thereby fix wallboard 2 on the wall, carry out preliminary assembly connection through splice 5 to two wallboards 2, unify the clearance between wallboard 2, improve the whole aesthetic property of assembled wall, the rethread wallboard fixed subassembly is further carries out fixed assembly to the concatenation department of two wallboards 2, improve the assembly efficiency of assembled wall, increase the joint strength between assembled wall and the wall, guarantee the overall stability of assembled wall.

The splice 5 comprises a middle limiting strip 5-3, a splicing strip 5-4 and a limiting strip 5-2, wherein the two sides of the middle limiting strip 5-3 are respectively connected with the splicing strip 5-4, the limiting strip 5-2 is connected to the edge of the splicing strip 5-4, namely, the splice 5 is a central symmetrical part, the splice 5 is convenient to connect with the wallboards 2 on the two sides, a limiting boss 5-1 is formed at the connection part of the middle limiting strip 5-3 and the splicing strip 5-4, and the limiting boss 5-1 is propped against the splicing surface of the wallboards 2, so that the size of a splice between adjacent wallboards 2 is controlled, and the gap between wallboards 2 is unified.

The limit strips 5-2 are arranged on the edges of the plug strips 5-4, the splicing element 5 is assembled in the splicing groove 2-2 in a limit mode through the limit strips 5-2, the plug strips 5-4 and the limit strips 5-2 form a T-shaped structure, a certain transverse limit is formed between the splicing element 5 and the wallboard 2 conveniently, when the wallboard 2 is prevented from being subjected to transverse acting force, the wallboard 2 and the splicing element 5 are separated, and the assembly stability between the wallboard 2 and the splicing element 5 is guaranteed.

Splice groove 2-2 is including spacing groove portion 2-3, grafting groove portion 2-4 and the movable groove portion 2-5 that connect gradually, and middle spacing 5-3 is laid at spacing groove portion 2-3, and grafting strip 5-4 is laid at grafting groove portion 2-4, and spacing 5-2 is laid at movable groove portion 2-5, and preferably, the length of grafting strip 5-4 is slightly greater than the length of grafting groove portion 2-4, and the length of movable groove portion 2-5 is greater than the thickness of spacing strip 5-2, guarantees that splice piece 5 can take place the displacement of removal relative wallboard 2 for have certain activity space between the adjacent wallboard 2, be convenient for wallboard 2 through splice piece 5 splice back with wallboard fixed component be connected, improve the assembly convenience.

The width of the movable groove part 2-5 is larger than that of the limit strip 5-2, the width of the limit groove part 2-3 is larger than that of the middle limit strip 5-3, the splicing piece 5 can perform certain displacement relative to the end face direction of the wallboard 2, the splicing strip 5-4 is excessively connected with the splicing groove part 2-4, the wallboards 2 on two sides are prevented from generating displacement in the direction perpendicular to the end face of the wallboard 2, and the flatness of the wallboard 2 after assembly is ensured.

When the splicing element 5 is assembled, the splicing element is spliced into the splicing groove 2-2 above or below the wallboard 2 along the height direction of the wallboard 2, and the installation is convenient.

The wallboard 2 that this wallboard installation was detained 1 adaptation is equipped with wallboard constant head tank 2-1 on, and wallboard constant head tank 2-1 sets up along the vertical or the horizontal of wallboard 2 to evenly install a plurality of wallboards installation knot 1 on wallboard 2, thereby be convenient for with wallboard 2 stable assembly on fossil fragments 3.

The wallboard mounting buckle 1 comprises a buckle plate limiting part 1-1 and a buckle plate inserting part 1-2, the wallboard mounting buckle 1 is positioned and mounted on the wallboard 2 through the buckle plate limiting part 1-1, so that the mounting precision between the wallboard mounting buckle 1 and the wallboard 2 is ensured, the wallboard mounting buckle 1 mounted on the wallboard is consistent in size, the size precision of the subsequent wallboard 2 is convenient to mount, the aesthetic property of the wallboard 2 after the mounting is finished is improved, the wallboard mounting buckle 1 is assembled on a keel of a wall body through the buckle plate inserting part 1-2, the wallboard 2 and the keel 3 are convenient to connect, and the assembly convenience of the wallboard 2 is improved.

The wallboard mounting buckle 1 comprises a mounting buckle plate 1-3, buckle plate limiting parts 1-1 and buckle plate inserting parts 1-2 are respectively arranged on two side end faces of the mounting buckle plate 1-3, so that the two side end faces of the mounting buckle plate 1-3 are respectively in transitional connection with the wallboard 2 and the keel 3, and the assembly convenience of the wallboard 2 is improved.

The buckle plate limiting portion 1-1 comprises a mounting guide rib 1-4, the wallboard mounting buckle 1 is positioned and mounted on the wallboard 2 through the mounting guide rib 1-4, in this embodiment, the mounting guide rib 1-4 is a long groove, that is, the mounting guide rib 1-4 is arranged along the height direction of the mounting buckle plate 1-3, the length of the mounting guide rib 1-4 is consistent with the height of the mounting buckle plate 1-3, and in some other embodiments, the buckle plate limiting portion 1-1 comprises a plurality of mounting guide ribs 1-4 which are arranged on the same straight line, and the mounting position of the mounting buckle plate 1-3 is positioned through the plurality of mounting guide ribs 1-4.

In this embodiment, the installation guide rib 1-4 is formed by bending the installation buckle plate 1-3, and the stamping machine is used for one-time stamping forming, so that the wallboard installation buckle 1 is conveniently processed, the production cost of the wallboard installation buckle 1 is reduced, in some other embodiments, the buckle plate limiting part 1-1 is provided with a protruding strip, the thickness of the buckle plate limiting part 1-1 is increased, and the installation guide rib 1-4 is formed.

The installation guide rib 1-4 is internally and uniformly provided with guide groove through holes 1-5, the installation guide rib 1-4 is fixed in a wallboard positioning groove 2-1 of a wallboard 2 through the guide groove through holes 1-5, a buckle screw hole 1-8 is arranged on a buckle plug-in part 1-2, the guide groove through holes 1-5 and the buckle screw hole 1-8 are used for installing self-tapping screws or wall tops, and when the wallboard installation buckle 1 is assembled, the installation guide rib 1-4 is fixed in the wallboard positioning groove 2-1 of the wallboard 2 through screws first, and then the wallboard installation buckle 1 and the wallboard 2 are connected through the buckle screw hole 1-8.

The buckling plate inserting part 1-2 is provided with the inserting plate 1-6, the inserting plate 1-6 is used for inserting the wallboard mounting buckle 1 on the keel 3, so that the wallboard 2 is connected with a wall body, an inserting gap is formed between the end face of the inserting plate 1-6 and the mounting buckling plate 1-3, the wallboard mounting buckle 1 is conveniently inserted on the keel 3 through the arrangement of the inserting gap, and the mounting convenience is improved; in this embodiment, a single plugboard 1-6 is disposed on the buckle board plug-in portion 1-2, so that the convenience in assembling the buckle board plug-in portion 1-2 is improved, in some other embodiments, a plurality of plugboards 1-6 are disposed on the board plug-in portion 1-2, the plurality of plugboards 1-6 are disposed along the same vertical line, and by means of the arrangement of the plurality of plugboards 1-6, the stability in assembling the wallboard mounting buckle 1 and the keel 3 can be improved.

In some preferred embodiments, the thickness of the insertion gap is 1-1.3 times of the thickness of the side wall of the keel 3, so that on one hand, the wallboard mounting buckle 1 is conveniently inserted on the keel 3, the mounting convenience is improved, and on the other hand, the wallboard can be prevented from shaking due to overlarge gap between the wallboard mounting buckle 1 and the keel 3.

In this embodiment, in order to reduce the production cost of the wallboard mounting buckle 1, the buckle plate inserting portion 1-2 is provided with the insert plate groove 1-7, and the plate in the insert plate groove 1-7 is bent to form the insert plate 1-6, that is, no other plate is required to be connected to the mounting buckle plate 1-3 to form the insert plate 1-6, so that on one hand, the quality of the wallboard mounting buckle 1 is reduced, and on the other hand, the production cost of the wallboard mounting buckle 1 can be saved.

In this embodiment, the buckle plate limiting portion 1-1 and the buckle plate inserting portion 1-2 are arranged in parallel, that is, the installation guide rib 1-4 on the buckle plate limiting portion 1-1 and the plugboard 1-6 of the buckle plate inserting portion 1-2 are all arranged along the height direction of the wallboard installation buckle 1, so that the wallboard 2 and the keel 3 can be connected in a transitional manner through the wallboard installation buckle 1.

Grooves 1-9 are formed in two sides of the buckling plate inserting portion 1-2, and the grooves 1-9 are used for carrying out light weight treatment on the wallboard mounting buckle 1, so that the stability of wallboard 2 mounting is further improved.

The wallboard mounting clasp 1 of the present embodiment is assembled to the keel 3 by way of the keel hanger 4,

the keel hanging piece 4 is provided with a wallboard fixing part 4-1 and a keel fixing part 4-2, the wallboard slot 4-3 is arranged on the wallboard fixing part 4-1, the wallboard structure is fixed on the wallboard fixing part 4-1 through the wallboard slot 4-3, and the keel fixing part 4-2 is used for assembling the keel hanging piece 4 on the keel 3.

Two wallboard installation buckles 1 are assembled in fossil fragments pendant 4 in this embodiment, can assemble two adjacent wallboard structures through this fossil fragments pendant 4 promptly, can reduce the fossil fragments subassembly quantity that is used for assembling wallboard structure on the one hand, on the other hand can unify the piece between the wallboard structure.

In order to facilitate the assembly of two wallboard mounting buckles 1 in the same keel hanging piece 4, two slot units 4-4 are arranged in the wallboard fixing part 4-1, the slot units 4-4 are oppositely arranged, wallboard slots 4-3 are formed between adjacent slot units 4-4, and plugboards 1-6 on two adjacent wallboard structures are respectively spliced in different slot units 4-4, so that the single keel hanging piece 4 is used for hanging two wallboard structures.

In this embodiment, the wall board slot 4-3 is formed by two unit slot boards 4-10, each unit slot board 4-10 forms a slot unit 4-4, and the board insert 1-6 on the wall board structure is inserted into one unit slot board 4-10.

To unify the size of the seam of each adjacent wall panel structure, the openings of the adjacent slot units 4-4 in the keel hanger 4 are disposed opposite, i.e., the unit slot plates 4-10 are disposed opposite, so that one side of the adjacent slot units 4-4 is in an opposite state.

The keel hanging piece 4 comprises a hanging piece board 4-6 and a fixing groove board 4-7, wallboard slots 4-3 and fixing groove boards 4-7 are respectively arranged on two sides of the hanging piece board 4-6, so that the wallboard structure and the keel 3 are connected in a transitional mode through the keel hanging piece 4, two fixing groove boards 4-7 are connected on one side of the hanging piece board 4-6, a keel fixing groove 4-5 is formed between every two adjacent fixing groove boards 4-7, and the keel hanging piece 4 is fixed on the keel 3 through the keel fixing groove 4-5.

In this embodiment, the hanging member board 4-6 is provided with a hanging member slot 4-12, the plate in the hanging member slot 4-12 is bent outwards to form a unit slot board 4-10, so as to form a slot unit 4-4 with three side openings, and a gap for inserting the inserting board 1-6 is arranged between the unit slot board 4-10 and the hanging member board 4-6.

The hanging piece plate 4-6 is provided with hanging piece fixing holes 4-8, the hanging piece fixing holes 4-8 are distributed towards the keel fixing grooves 4-5, namely, the hanging piece fixing holes 4-8 are distributed in the areas of the keel fixing grooves 4-5, bolts are arranged in the hanging piece fixing holes 4-8, the keel 3 is fixed in the keel fixing grooves 4-5 through the bolts, the assembly strength of the keel hanging pieces 4 and the keel 3 is guaranteed, the hanging piece fixing holes 4-8 preferably comprise edge fixing holes 4-13 and center fixing holes 4-14, the center fixing holes 4-14 are distributed on the center position of the hanging piece plate 4-6, the edge fixing holes 4-13 are distributed on the edges of the hanging piece 4-6, the keel hanging pieces 4 and the keel 3 are assembled through the edge fixing holes 4-13 and the center fixing holes 4-14, and the assembly strength is improved.

And a mounting gap is arranged between the adjacent unit slot plates 4-10, and the pendant fixing holes 4-8 are distributed in the mounting gap, so that bolts in the pendant fixing holes 4-8 can be screwed conveniently through the mounting gap, and the assembly convenience is improved.

The both sides of pendant board are equipped with light-weight recess 4-9, and light-weight recess 4-9 lays in the both sides of fossil fragments fixed slot 4-5, under the condition that does not influence fossil fragments pendant 4 intensity, can reduce fossil fragments pendant 4's quality through light-weight recess 4-9's setting.

The through grooves 4-11 are arranged on the unit inserting groove plates 4-10, so that the quality of the keel hanging pieces 4 is further reduced under the condition that the strength of the unit inserting plates 4-10 is not affected.

The method for installing the assembled wall surface butt joint structure comprises the following steps,

s1, prefabricating a wallboard 2, splicing pieces 5, wallboard mounting buckles 1, keel hanging pieces 4 and keels 3;

s2, assembling the wallboard 2 mounting buckle 1 on the wallboard 2, and assembling the keel hanging piece 4 on the keel 3;

s3, splicing the wallboards 2 through the splicing pieces 5;

and S4, assembling the spliced wallboard 2 on the keel hanging piece 4.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the terms corresponding to the reference numerals in the drawings are used more herein, the possibility of using other terms is not excluded; these terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (9)

1. The utility model provides an assembled wall flush joint structure, its characterized in that, including wallboard (2), splice (5) and wallboard fixed subassembly, be equipped with splice groove (2-2) that are used for grafting splice (5) on wallboard (2) lateral wall, splice through splice (5) between adjacent wallboard (2), be equipped with wallboard slot (4-3) in the wallboard fixed subassembly, splice wallboard (2) are pegged graft in wallboard slot (4-3).

2. The assembled wall flush joint structure according to claim 1, wherein a limiting boss (5-1) is arranged in the middle of the splicing element (5), and the limiting boss (5-1) is arranged between adjacent wall boards (2) to control the size of the joint between the wall boards (2).

3. The assembled wall flush joint structure according to claim 2, wherein limit strips (5-2) are arranged on two side edges of the splicing element (5), and the splicing element (5) is fixed in the splicing groove (2-2) through the limit strips (5-2).

4. A fabricated wall surface butt joint structure according to claim 3, wherein the splicing element (5) comprises a middle limiting strip (5-3), a plug strip (5-4) and a limiting strip (5-2), the two sides of the middle limiting strip (5-3) are respectively connected with the plug strip (5-4), a limiting boss (5-1) is formed at the joint of the middle limiting strip (5-3) and the plug strip (5-4), and the limiting strip (5-2) is connected to the edge of the plug strip (5-4).

5. The assembled wall flush joint structure according to claim 4, wherein the splicing groove (2-2) comprises a limiting groove part (2-3), an inserting groove part (2-4) and a movable groove part (2-5) which are sequentially connected, the middle limiting strip (5-3) is arranged on the limiting groove part (2-3), the inserting strip (5-4) is arranged on the inserting groove part (2-4), and the limiting strip (5-2) is arranged on the movable groove part (2-5).

6. The assembled wall flush joint structure according to claim 1, wherein the end face of the wall plate (2) is provided with a wall plate positioning groove (2-1), and the wall plate fixing assembly is in positioning connection with the wall plate (2) through the wall plate positioning groove (2-1).

7. The assembled wall flush joint structure according to claim 1, wherein the wall panel fixing assembly comprises a wall panel mounting buckle (1), a keel hanging piece (4) and a keel (3), the wall panel mounting buckle (1) is fixed on the wall panel (2), and the wall panel mounting buckle (1) is mounted on the keel (3) in a transitional manner through the keel hanging piece (4).

8. The assembled wall surface butt joint structure according to claim 7, wherein the two sides of the wallboard mounting buckle (1) are provided with mounting guide ribs (1-4) and plugboards (1-6), the wallboard mounting buckle (1) is assembled on the wallboard (2) in a positioning way through the mounting guide ribs (1-4), and the wallboard mounting buckle (1) is assembled on the keel hanging piece (4) through the plugboards (1-6).

9. The assembled wall flush joint structure according to claim 7, wherein the two sides of the keel hanging piece (4) are provided with a wallboard slot (4-3) and a keel fixing slot (4-5), the wallboard mounting buckle (1) is inserted into the wallboard slot (4-3), and the keel hanging piece (4) is assembled on the keel (3) through the keel fixing slot (4-5).