CN220620837U

CN220620837U - Keel and keel assembly

Info

Publication number: CN220620837U
Application number: CN202321024075.4U
Authority: CN
Inventors: 刘智彬; 王洪波; 张迎港; 肖耿
Original assignee: Beijing New Building Material Group Co Ltd
Current assignee: Beijing New Building Material Group Co Ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2024-03-19
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses a keel and a keel assembly, which comprises a base plate and a pair of side wall plates extending from two sides of the base plate away from a plate surface of the base plate, wherein the base plate and the pair of side wall plates form a slot; the side wall plates are provided with clamping flanges which are bent oppositely and inwards to the slots; the side wall plate is provided with an inwardly recessed clamping groove which extends along the length direction of the keel, and the keel is simple in structure and can be matched and assembled with various components, such as leveling pieces, clamping pieces, keels and the like.

Description

Keel and keel assembly

Technical Field

The present utility model relates to construction technology, and more particularly, to a keel, and a keel assembly.

Background

Along with the development of the building industry, the demand of the assembled market is increasing. The assembled keel structure in the current market is diversified, and the purpose is to adapt to various application scenes, so that great complexity is brought to manufacturing and assembly.

Disclosure of Invention

The embodiment of the utility model provides a keel and a keel assembly, which are simple in structure and can be matched and assembled with various components.

The keel provided by the embodiment of the utility model comprises: a base plate and a pair of side wall plates extending from two sides of the base plate away from a plate surface of the base plate, wherein the base plate and the pair of side wall plates form a slot; the keel further comprises a connecting wall surface opposite to the base plate, and the connecting wall surface is provided with a bayonet communicated with the slot; the side wall plate is provided with an inwardly recessed clamping groove extending along the length of the keel.

In one exemplary embodiment, the keel is integrally formed from a base material; the keel comprises a closed wall surface forming the base plate and an open wall surface forming the connecting wall surface;

the connecting wall surface comprises a pair of clamping flanges which are respectively bent from the pair of side wall plates in opposite directions and bent into the slot, and the bayonet is formed between the clamping flanges.

An embodiment of the present utility model provides a keel assembly comprising: an adjustment member, and a keel as in any of the embodiments above mounted to the adjustment member;

the adjusting piece comprises a base, a mounting seat and a leveling structure, wherein the base is fixedly connected with the mounting surface, the mounting seat is assembled with the keel, and the leveling structure is connected with the base and the mounting seat;

the mounting seat comprises a bottom plate, a buckle extending towards the clamping groove direction of the keel is arranged on at least one side of the bottom plate along the vertical direction, and the buckle is inserted into the clamping groove and clamped with the bayonet in a matched mode.

In one exemplary embodiment, the keel assembly further comprises a clip for clipping the keel, the clip comprising a connecting wall, and a pair of clip legs bent from opposite ends of the connecting wall, the clip legs having inwardly extending barbs and outwardly extending spring walls;

the pair of clamping feet respectively clamp the side wall plate, and the inverted hooks of the pair of clamping feet are respectively matched and clamped with the corresponding clamping grooves.

In one exemplary embodiment, the leveling structure is a swivel arm connecting the base and the mount, the swivel arm including opposite first and second ends that are rotatably connected to the base and the mount, respectively.

In one exemplary embodiment, the base includes a bottom wall, and a side wall extending from the bottom wall in a direction of the mount along at least one lateral direction, the first end of the rotating arm being rotatably connected to the side wall;

the first end of the rotating arm and the side wall are provided with a first rotating shaft, and the other is provided with a first mounting hole rotatably connected with the first rotating shaft.

In an exemplary embodiment, a plurality of first positioning holes are formed in a wall surface of the side wall, and the plurality of first positioning holes are arranged at intervals along an arc line taking a position point of a first rotating shaft or a first mounting hole of the side wall as a circle center;

the first end of the rotating arm is provided with a first convex part which can be matched and positioned with the first positioning hole.

In an exemplary embodiment, the side wall includes a connection end near the mounting seat, where the connection end is an arc shape with a point where the first rotation shaft or the first mounting hole of the side wall is located as a center of a circle;

the first end of the rotating arm is provided with a clamping wall which extends from the outer wall surface of the side wall to the outer wall surface and bends towards the direction where the base is located, the connecting end is inserted into a clamping opening formed by the clamping wall and the outer wall surface of the side wall, and the clamping wall clamps the outer wall surface of the side wall.

In an exemplary embodiment, the mounting base further includes a side plate extending from at least one side of the bottom plate in a lateral direction toward the base, the second end of the rotating arm being rotatably connected to the side plate;

the second end of the rotating arm and the side plate are provided with a second rotating shaft, and the other side plate is provided with a second mounting hole which is rotatably connected with the second rotating shaft.

In an exemplary embodiment, a plurality of second positioning holes are formed in the plate surface of the side plate, and the second positioning holes are arranged at intervals along an arc line taking the position point of the second rotating shaft or the second mounting hole of the side plate as the center of a circle; the second end of the rotating arm is provided with a second convex part which can be matched and positioned with the second positioning hole.

In an exemplary embodiment, the mounting base comprises at least two mounting base buckles arranged in a vertical arrangement, and the two mounting base buckles are inserted into the clamping grooves and clamped with the bayonet fittings;

the rotating arms comprise at least two rotating arms, and the at least two rotating arms respectively connect the at least two mounting seats with the base;

adjacent rotating arms in the at least two rotating arms are staggered in the transverse direction and the vertical direction, and the positions and the number of the side walls of the base are correspondingly arranged with the positions and the number of the rotating arms.

An embodiment of the present utility model provides a keel assembly comprising: the keels of any of the above embodiments, wherein the keels comprise a vertical keel, a pair of transverse keels vertically spliced on both sides of the vertical keel, and a fixing piece for splicing the vertical keel and the pair of transverse keels;

the fixing piece is in a cross shape and is provided with clamping wall plates extending in four directions, clamping jaws are arranged on two sides of the clamping wall plates, and clamping grooves on two sides of the vertical keel are clamped by the clamping jaws of the two vertical clamping wall plates along the vertical direction;

two clamping jaws for clamping the wallboard along the transverse direction, wherein one clamping jaw is used for clamping grooves on two sides of the transverse keel on one side of the vertical keel, and the other clamping jaw is used for clamping two sides of the transverse keel on the other side of the transverse keel.

The keel of the embodiment of the utility model has a simple structure, the connecting wall surface is provided with the bayonet matched with the clamping and adapting structural member, and the side wall plate is provided with the clamping groove matched with the clamping and adapting structural member, so that the keel of the embodiment of the utility model can be matched with various components, such as a leveling piece, a clamping piece, the keel and the like, thereby facilitating the unification of the structure of the keel, and having simple manufacture and convenient installation.

The adjusting piece of the keel assembly can be applied to a wall leveling system in a wall installation dry system, can better cope with various problems of uneven original wall surfaces, can be matched with a wall facing installation system diversified in the market, can finish the dry installation of decorative surfaces diversified in the market in a simple wall leveling mode, can quickly solve the problem of wall leveling, can be simplified, reduces the diversity of leveling components in a construction site, and satisfies the diversity of decorative surface selection.

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

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

Figure 1 is a perspective view of a keel according to an embodiment of the utility model;

figure 2 is a cross-sectional view of a keel according to an embodiment of the utility model;

figure 3 is a partial perspective assembly view of a keel assembly according to an embodiment of the utility model;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is an overall perspective view of a leveling member according to an embodiment of the present utility model;

FIG. 6 is a perspective exploded view of a leveling member according to an embodiment of the present utility model;

FIG. 7 is a schematic view of another leveling state of a leveling member according to an embodiment of the present utility model;

FIG. 8 is an enlarged view of a portion of FIG. 5;

figure 9 is a perspective view of a clip of a keel assembly according to an embodiment of the utility model

Figure 10 is an assembled view of another keel assembly according to an embodiment of the utility model;

fig. 11 is a perspective view of a fixing member according to an embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings. The embodiments of the present utility model and the features of the embodiments may be arbitrarily combined with each other without collision.

As shown in fig. 1-2, a keel 1 according to an embodiment of the utility model comprises: a base plate 10, and a pair of sidewall plates 11 extending from both sides of the base plate 10 to a plate surface away from the base plate 10. The base plate 10 and the pair of side wall plates 11 form a slot 12. The keel 1 further comprises a connecting wall 13 opposite to the base plate 11, the connecting wall 13 being provided with a bayonet 130 communicating with the slot 12. The side wall plate 11 is provided with an inwardly recessed clip groove 111, the clip groove 111 extending along the length of the keel 1.

In this embodiment, the keel 1 is formed by integrally bending a base material. The keel 1 includes a closed wall forming the base plate 10 and an open wall forming the connecting wall 13. The connection wall 13 includes a pair of holding flanges 110 which are respectively bent from the pair of side wall plates 11 toward each other and into the insertion slot 12, the bayonet 130 is formed between the pair of holding flanges 110, and the bayonet 130 extends along the longitudinal direction of the keel.

In one exemplary embodiment, the connection wall 13 may be a closed wall, and the bayonet 130 may be an opening provided in the connection wall 13, the opening communicating with the slot 12.

The keel 1 of the embodiment of the utility model has a simple structure, the connecting wall surface 13 is provided with the bayonet 130 which can be matched with the clamping and adapting structural member, and the side wall plate is provided with the clamping groove 111 which can be matched with the clamping and adapting structural member, so that the keel 1 of the embodiment of the utility model can be matched with various members, such as leveling pieces, clamping pieces, keels and the like, thereby facilitating the unification of the structure of the keel, and having simple manufacture and simple installation.

As shown in fig. 3-9, embodiments of the present utility model also provide a keel assembly 100 including an adjustment member 2, and a keel 1 as described in any of the embodiments above mounted on the adjustment member 2.

As shown in fig. 3 to 4, the adjusting member 2 includes a base 20, a mount 21, and a rotation arm 22 rotatably connected to the base 20 and the mount 21, respectively. The base 20 is configured for fixed connection to a mounting surface, which may be a mounting surface of a foundation wall. The mounting seat 21 is arranged to fit with the keel 1 (see fig. 4). The rotary arm 22 includes opposite first and second ends 22a, 22b, the first and second ends 22a, 22b being rotatably coupled to the base 20 and the mount 21, respectively. The distance between the base 20 and the mounting seat 12 can be adjusted by adjusting the rotation angle of the rotating arm 22, the base 20 and the mounting seat 21, so as to achieve the purpose of leveling the mounting surface.

The leveling base 20 of the adjusting member 2 of the keel assembly 100 of the embodiment of the utility model is fixed on the installation surface to be leveled, the upper keel 1 is installed, and the leveling is realized by adjusting the angle of the rotating arm 22 to achieve the adjustment of the distance.

The adjusting piece 2 of the keel assembly 100 can be applied to a wall leveling system in a wall installation dry system, can better cope with various uneven original wall surfaces, can be matched with a wall facing installation system diversified on the market, can finish the dry installation of decorative surfaces diversified on the market in a simple wall leveling mode, can quickly solve the wall leveling problem, can be simplified, reduces the diversity of leveling components on a construction site, and satisfies the diversity of decorative surface selection.

The adjusting member 2 of the keel assembly 100 of the present embodiment not only provides for easy and quick leveling, but also provides for reliable installation with the keel.

As shown in fig. 3 to 4, the base 20 includes a bottom wall 201 and a side wall 202 extending from at least one side of the bottom wall 201 in the lateral direction toward the mounting seat 21, and a first end 22a of the rotating arm 22 is rotatably connected to the side wall 202. The first end 22a of the rotation arm 22 and the side wall 202 are provided with a first rotation shaft 221 and the other with a first mounting hole 2020 rotatably coupled to the first rotation shaft 221. The first end 22a and the side wall 202 of the rotating arm 22 may also be provided with mounting holes, which are connected by a rotating shaft.

As shown in fig. 3-4, a plurality of first positioning holes 2021 are provided on the wall surface of the side wall 202 of the base 20. When the first mounting holes 2020 are formed in the side wall 202, the plurality of first positioning holes 2021 are arranged at intervals along an arc line centered on the location point of the first mounting hole 2020 of the side wall 202; when the first rotation shaft 221 is disposed on the side wall 202, the plurality of first positioning holes 2021 are spaced apart along an arc line centered on a location point of the side wall 202 where the first rotation shaft 221 is located. As shown in fig. 1 and 4, the first end 22a of the rotary arm 22 is provided with a first protrusion 222 that can be positioned in cooperation with the first positioning hole 2021. The first protruding portion 222 is matched with the first positioning holes 2021 at different positions, and the plurality of first positioning holes 2021 correspond to different angle scales of rotation of the rotating arm 22. In the illustration, the side wall 202 has 7 first positioning holes 2021 corresponding to 7 angular scales on which the first end 22a of the rotating arm 22 is rotatable.

As shown in fig. 8, the side wall 202 of the base 20 includes a connection end 20a near the mounting base 20, and the connection end 20a is arc-shaped with the first rotation axis 221 or the first mounting hole 2020 of the side wall 202 as the center of the location point. The first end 22a of the rotation arm 22 is provided with a grip wall 223 extending from the outer wall surface of the side wall 202 away from the outer wall surface and bent in the direction in which the base 20 is located. The connection end 20a is inserted into a clamping opening formed by the clamping wall 223 and the outer wall surface of the side wall 202, and the clamping wall 223 clamps the outer wall surface of the side wall 202.

As shown in fig. 3 to 4, the mounting base 21 includes a bottom plate 210 and a side plate 211 extending from at least one side of the bottom plate 210 in a lateral direction toward the base 20, and the second end 22b of the rotating arm 22 is rotatably connected to the side plate 211. The second end 22b of the rotation arm 22 and the side plate 211 are provided with a second rotation shaft 224 and a second mounting hole 2110 rotatably coupled to the second rotation shaft 224. The second end 22b of the rotating arm 22 and the side plate 211 may also be provided with mounting holes, which are connected by a rotating shaft.

As shown in fig. 8, the plate surface of the side plate 211 is provided with a plurality of second positioning holes 2111, and the second end 22b of the rotary arm 22 is provided with a second protrusion 225 that can be positioned in cooperation with the second positioning hole 111.

When the side plate 211 is set as the second rotating shaft 224, the plurality of second positioning holes 2111 are arranged at intervals along an arc line with the position point of the second rotating shaft 224 of the side plate 211 as the center; when the side plate 211 is provided as the second mounting hole 2110, the plurality of second positioning holes 2111 are arranged at intervals along an arc line centered on the point where the second mounting hole 2110 of the side plate 211 is located.

The rotating arm 22 gradually decreases in diameter from the first end 22a to the second end 22b thereof, and the number of the first positioning holes 2020 is greater than the number of the second positioning holes 2111. In the drawing, the side plate 211 has 5 second positioning holes 2111 corresponding to 5 angular scales on which the second end 22b of the rotating arm 22 is rotatable.

In the embodiment of the utility model, the locking of the leveling position and the leveling accuracy can be realized by arranging the plurality of first positioning holes 2020, the first convex parts 222 matched and positioned with the first positioning holes 2020 and the second convex parts 225 matched and positioned with the second positioning holes 2111 and the second positioning holes 2111.

As shown in fig. 3, the mounting seats 21 include at least two vertically arranged side by side, the rotating arms 22 include at least two, and the at least two rotating arms 22 respectively connect the at least two mounting seats 21 with the base 20. The adjacent rotating arms 22 in the at least two rotating arms 22 are staggered in the transverse direction and the vertical direction, and the number and the positions of the side walls of the base 20 are corresponding to those of the rotating arms 22. The installation seats 21 in the embodiment of the utility model are arranged in a plurality of ways, so that the connection firmness with the keel 1 is higher.

As shown in fig. 5, the bottom wall 201 of the base 20 includes a pair of fin walls 203 on both sides in the lateral direction, the pair of fin walls 203 extending beyond the side walls 202 on the respective sides along the respective sides. The bottom wall 201 and the fin wall 203 are each provided with a mounting hole 2030 fixedly connected to the mounting surface.

The base 20 and the mounting seat 21 of the embodiment of the utility model are formed by integrally bending and stamping the base material, and the whole base 20 is Z-shaped. The clamping wall 223 of the rotary arm 22 is formed by punching and bending.

As shown in fig. 5 and 7, when the adjusting member 2 is adjusted, the first end 22a of the rotating arm 22 and the side wall 202 of the base 20 rotate in one direction, and the second end 22b of the rotating arm 22 and the side plate 211 of the mounting seat 21 rotate in the opposite direction. When the adjustment of the required angle is achieved, the first protrusion 222 of the first end 22a of the rotating arm 22 is positioned in cooperation with the corresponding first positioning hole 2021, and the second protrusion 225 of the second section 12b of the rotating arm 22 is positioned in cooperation with the corresponding second positioning hole 2110. The grip wall 223 is movable along the arc-shaped connection end 20a of the base 20 to remain gripped with the connection end 20a during rotation of the first end 22a of the rotation arm 22.

As shown in fig. 5, the bottom plate 210 of the mount 21 of the regulator 2 is provided with a catch 212 extending in a direction away from the base 20 on at least one side in the vertical direction. The buckle 212 of the mounting seat 21 is matched and clamped with the clamping flanging 20 of the keel 1.

As shown in fig. 9, the keel assembly 100 further includes a clip 3 for clipping the keel 1, the clip 3 including a connecting wall 30 and a pair of clip legs 31 bent from opposite ends of the connecting wall 30, the clip legs 31 having inwardly extending barbs 311 and outwardly extending spring walls 312. The pair of clamping legs 31 respectively clamp the side wall plates 11 of the corresponding keels 1, and the barbs 311 of the pair of clamping legs 31 respectively engage and clamp the clamping grooves 111 of the corresponding keels 1.

According to the embodiment of the utility model, the clamping pieces 3 are arranged, so that the side wall plates 102 on the two sides of the keel 1 can be clamped and clung to the side surfaces of the keel 1, and the integral displacement of the adjusting piece 2 along the length direction of the keel 1 can be avoided.

As shown in fig. 3-4, when the keel 1 and the adjusting member 2 are assembled in a matched manner, the base 20 of the adjusting member 2 can be fixedly assembled with the mounting surface first, and then the mounting surface can be leveled by the adjusting member 2. Then install fossil fragments 1 and regulating part 2, fossil fragments 1 and mount pad 21 cooperation joint, fossil fragments 1's length direction and the horizontal direction mutually perpendicular installation of mount pad 21, the buckle 212 of mount pad 21 inserts the slot 1a of fossil fragments and the cooperation buckle 212 of the holding turn-ups of fossil fragments 1.

As shown in fig. 3, the first state of the adjusting member 2 is mounted in cooperation with the keel 1, and the two mounting seats 21 are mounted in cooperation with the same keel 1. As shown in fig. 7, the second state of the adjusting member 2 may be fitted with the keel 1, where two mounting seats 21 are fitted with different keels 1. The adjusting piece 2 of the embodiment of the utility model not only can realize rotation leveling, but also can realize simultaneous connection of a plurality of keels.

The keel assembly 100 of the embodiment of the utility model has the advantages of simple installation mode, easily understood leveling principle, less number of buckles, quick adaptation in the construction process of workers, high installation speed, high leveling quality, convenient secondary construction, and strong suitability, and the keel leveling system can be suitable for most assembly type wall construction processes in the current market. The matched fixing piece and the connecting piece are convenient to install, other auxiliary tools are not needed, and the installation speed is improved.

The keel assembly 100 of the embodiment of the utility model can better cope with the uneven problem of various original wall surfaces, can be adapted to a mounting system of diversified wall surface facing in the market, can finish a dry mounting mode of the diversified wall surfaces in the market by a simple wall surface leveling mode, can rapidly solve the problem of wall surface leveling, can be simplified, reduces the diversity of leveling components in a construction site, and satisfies the diversity of decorative surface selection.

As shown in fig. 10, the present application further provides a keel assembly 200, including a plurality of assembled keels 1 according to any of the embodiments described above, wherein the plurality of keels 1 includes a vertical keel 1a, a pair of transverse keels 1b vertically spliced on two sides of the vertical keel 1a, and a fixing member 5 for splicing the vertical keel 1a and the pair of transverse keels 1 b.

As shown in fig. 11, the fixing member 5 is in a cross shape, and has a clamping wall plate 50 extending in four directions of north and south, two sides of the clamping wall plate 50 are respectively provided with a clamping jaw 501, and the structure of the clamping jaw 501 is the same as that of the clamping foot 31, which is not described herein. The clamping jaw 501 of the clamping wall plate 50 in four directions clamps clamping grooves 2020 on two sides of the keel 1 along the clamping jaw 501 of the two clamping wall plates 50 in the vertical direction, and clamps the transverse keel 4 on one side of the keel 1 along the clamping jaw 501 of the two clamping wall plates 50 in the horizontal direction, and clamps the transverse keel 4 on the other side of the transverse keel 1.

The fixing piece 5 of the embodiment of the utility model is used for connecting the transverse keel 1b and the vertical keel 1a, and on the basis of leveling the vertical keel 1a, the clamping jaw 501 is used for fixing the transverse keel 4 on the vertical keel 1, so that keel reinforcement is completed, and gypsum board can be installed.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "one side", "the other side", "one end", "the other end", "the side", "the opposite", "four corners", "the periphery", "the letter structure", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus are not to be construed as limiting the present utility model.

In the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," "assembled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, and may also be in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is defined by the appended claims.

Claims

1. A keel, comprising: a base plate and a pair of side wall plates extending from two sides of the base plate away from a plate surface of the base plate, wherein the base plate and the pair of side wall plates form a slot;

the keel further comprises a connecting wall surface opposite to the base plate, and the connecting wall surface is provided with a bayonet communicated with the slot;

the side wall plate is provided with an inwardly recessed clamping groove extending along the length of the keel.

2. The runner of claim 1, wherein the runner is integrally formed from a base material; the keel comprises a closed wall surface forming the base plate and an open wall surface forming the connecting wall surface;

3. A keel assembly, comprising: an adjustment member, a keel according to any of claims 1-2 mounted to said adjustment member;

4. The runner assembly of claim 3 further comprising a clip for clipping the runner, the clip comprising a connecting wall and a pair of clip legs bent from opposite ends of the connecting wall, the clip legs having inwardly extending barbs and outwardly extending spring walls;

5. The keel assembly of claim 3, wherein the leveling structure is a swivel arm connecting the base and the mount, the swivel arm including opposed first and second ends, the first and second ends being rotatably connected to the base and the mount, respectively.

6. The keel assembly according to claim 5, wherein said base includes a bottom wall and a side wall extending from said bottom wall in a lateral direction at least one side to said mounting base, said first end of said swivel arm being rotatably connected to said side wall;

7. The keel assembly according to claim 5, wherein a plurality of first positioning holes are formed in the wall surface of the side wall, and the plurality of first positioning holes are arranged at intervals along an arc line taking the position point of the first rotating shaft or the first mounting hole of the side wall as the center of a circle;

8. The keel assembly according to claim 7, wherein said side wall includes a connecting end adjacent said mounting base, said connecting end being arcuate about a point of said side wall where said first axis of rotation or first mounting hole is located;

9. The keel assembly according to claim 5, wherein said mounting base further comprises a side plate extending from at least one side of said base plate in a lateral direction toward said base, a second end of said swivel arm being rotatably connected to said side plate;

10. The keel assembly according to claim 9, wherein a plurality of second positioning holes are formed in the plate surface of the side plate, and the second positioning holes are arranged at intervals along an arc line taking the position point of the second rotating shaft or the second mounting hole of the side plate as the center of a circle; the second end of the rotating arm is provided with a second convex part which can be matched and positioned with the second positioning hole.

11. The keel assembly according to claim 10, wherein said mounting base comprises at least two vertically aligned mounting base catches, both of which are inserted into said detents and retained with said bayonet fitting;

12. A keel assembly, comprising: a plurality of assembled keels according to any one of claims 1-2, said plurality of keels comprising a vertical keel, a pair of transverse keels vertically spliced on both sides of said vertical keel, and a fixing element splicing said vertical keel and said pair of transverse keels;