A plastic keel structure and floor matching the same

Abstract

The present invention discloses a plastic keel structure, including keel units connected in sequence to form a whole keel, a male buckle is provided at one end of the keel unit in the length direction, and a female buckle matched with the male buckle is provided at the other end, and the keel unit includes an overlapping component horizontally arranged in the middle of the length direction for accommodating the edges of adjacent floors, and a lower top height adjustment component arranged in the middle of the length direction of the keel unit and directly below the overlapping component. The present invention also discloses a floor, which is installed on the plastic keel structure and has a groove and a lower protrusion, as well as an upper protrusion adapted to the edges of the external hanging block and the supporting cross column. The plastic keel structure and the floor are combined to facilitate the overall height adjustment of the keel itself, so that each installed keel is consistent in height with the floor installed thereon, and the height and relative angle of the edge between two adjacent floors are conveniently adjusted to ensure the flatness and consistency of the floor in details.

Description

Technical Field

[0001] The invention relates to the technical field of wooden floor connection, and in particular to a plastic keel structure and a floor matched therewith. Background Art

[0002] Wooden flooring, especially solid wooden flooring, has rich elasticity and surface texture. When people walk on solid wooden flooring, they can feel the elasticity brought by its material characteristics. Laying keels under solid wooden flooring can maximize the unique feeling of feet and walking brought by solid wooden flooring, and maximize the quality of solid wooden flooring compared with composite flooring. Laying keels can also prevent wooden flooring from direct contact with ground moisture, extend the life of the floor, and facilitate the later laying of floor heating, leveling the ground, noise reduction and other auxiliary functions.

[0003] The existing method of laying keels is to fix the keels on the ground with nails or wooden nails to form a grid-like bracket with crisscross and equal spacing, and then lay the wooden floor on the grid-like bracket. Most of the existing keels are made of relatively hard wood such as pine or light steel, which is prone to problems such as insect infestation, mildew, rot or rust after long-term use. In addition, nails or wooden nails are needed to fix the keels on the ground during installation, which is complicated and troublesome to install.

[0004] In recent years, keels made of plastic materials or components with similar functions have been developed on the market. For example, a patent application with application number 2018203385917 entitled A connection component for a wooden floor with an auxiliary buckle discloses a connection component that not only has the property of the plastic material itself that it is not easy to rot, deteriorate or rust, but also has a first male buckle and a second male buckle that match each other and can connect the connection components one by one. The connection is convenient and quick, making the installation of the keel very easy.

[0005] However, if the ground is uneven, simply splicing the connecting components together still requires the use of external tools such as pads to adjust the floor to make the overall flatness after splicing. The flatness of details such as the joints between two adjacent floors after splicing cannot be guaranteed. Summary of the invention

[0006] One object of the present invention is to provide a plastic keel structure that can overcome the shortcomings of the prior art and conveniently allow the keel itself to be adjusted in overall height, so that each installed keel and the floor installed thereon are of consistent height, and the height and relative angle of the edges between two adjacent floors can be conveniently adjusted to ensure the flatness and consistency of the floor in details.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] A plastic keel structure, including keel units connected in sequence to form a whole keel, one end of the keel unit in the length direction is provided with a male buckle, and the other end is provided with a female buckle that matches and overlaps with the male buckle. The keel unit includes an overlapping component horizontally arranged in the middle of the length direction for accommodating the edges of adjacent floors, and a lower top height adjustment component arranged in the middle of the length direction of the keel unit and directly below the overlapping component.

[0009] The overlapping parts are used to connect the edges of two adjacent floors and make the two edges consistent in height. The lower top height adjustment parts can adjust the height of the entire keel unit to offset and compensate for the unevenness of the paved ground. There is no need for additional pads or other objects such as those used in general construction to adjust the height.

[0010] Preferably, the overlapping member comprises a supporting cross column, and a plurality of external hanging blocks arranged alternately and side by side on the central supporting column and extending outwardly from both ends of the supporting cross column. The supporting cross column is used to support the external hanging blocks, and a certain gap is provided between the external hanging blocks and the main body of the keel unit, so as to facilitate the embedding of the floor adapted to the gap.

[0011] Preferably, the supporting crossbar comprises a vertical rigid side and a rigid bottom, a flexible core portion in the same position as the external suspension block, and a flexible core top portion covering the flexible core portion. When the two floors are connected, the lower edges of the two floors are pressed tightly against the rigid side of the supporting crossbar by the spring force between the two existing connecting components.

[0012] Preferably, the outer suspension block is made of flexible material, and comprises a left suspension block and a right suspension block separated at the center of the connecting surface, and a rigid support block for changing the edge size and shape of the left and right suspension blocks is hidden on the connecting surface of the left and right suspension blocks.

[0013] The rigid support block can move on the interface between the left and right suspension blocks, and its position will cause the outer suspension block at that position to expand outward, thereby changing the gap between the outer surface of the outer suspension block and the edge of the floor and the magnitude of the force between the two, thereby changing the relative position of the edges of the two floors. Specifically, if the edges of the two floors are arched upward, the rigid support block can be moved downward to reduce the support force of the upper part of the outer suspension block and increase the support force of the lower part of the outer suspension block, thereby causing the edge of the floor to shift downward and restore the floor to be flat; and when the edges of the two floors are concave downward, the rigid support block is moved upward to increase the squeezing force between the upper part of the outer suspension block and the floor, and the floor is propped up, so that the floor joint is always kept flat.

[0014] Furthermore, the existence of the left hanging block, the right hanging block, the flexible core top and the flexible core made of flexible material makes the rigid support block have a larger range of movement. It can completely break away from the outer hanging block and enter the supporting cross column. The outer hanging block can shrink inward to a large extent, greatly reducing the supporting effect of the outer hanging block on the floor, thereby correcting the large warping shape of the two floors.

[0015] The above-mentioned flexible material can be rubber, silicone or other materials with high density and good elastic supporting force.

[0016] Preferably, a through hole is provided in the overlapping part, which passes through the joint surface of the left hanging block and the right hanging block, the top of the flexible core and the same vertical position of the flexible core; a screw rod rotatably connected to the rigid bottom is provided in the through hole; the rigid support block is screwed on the screw rod. The rigid support block moves up and down along the through hole under the rotation of the screw rod, so that the rigid support block moves regularly and the height adjustment is orderly and precise.

[0017] Preferably, the top surface of the screw rod is not higher than the top of the external suspension block, and the top of the screw rod has an adjustment groove for conveniently rotating the screw rod to adjust the height of the rigid support block, making the adjustment of the position of the rigid support block more convenient and quick.

[0018] Preferably, the lower top height adjustment component is located in the middle of the vertical space between adjacent external suspension blocks, and includes a supporting bottom block, a connecting block fixed on the supporting bottom block, and a threaded rod rotatably connected to the connecting block. A storage hole for accommodating the supporting bottom block and the connecting block is provided on the bottom surface of the supporting cross column, and a screw hole for cooperating with the threaded rod is opened above the storage hole.

[0019] When the ground in the paving area is flat and the height adjustment of the keel is not required, the supporting bottom block is completely stored in the storage hole, and the lower surface of the keel unit body is completely in contact with the ground; when adjustment is required, the supporting bottom block is screwed out by the relative rotation of the threaded rod and the screw hole, and the supporting bottom block directly contacts the ground, so that the body of the keel unit is lifted upward and the height is increased. When adjusting, with the help of a certain level instrument, the height of the keel units at various positions can be adjusted to be consistent, so that the floor paving maintains a high degree of flatness.

[0020] Preferably, the top surface of the threaded rod is not higher than the top of the supporting cross column, and the top of the threaded rod has an adjustment slot for conveniently rotating the threaded rod to adjust the overall height of the keel unit, making the adjustment of the keel unit height more convenient and quick.

[0021] Preferably, one of the keel units has at least three external hanging blocks and two lower top height adjustment components, so that the positional relationship between the keel unit and the edge of the floor can be adjusted more carefully and evenly, with higher adjustment accuracy.

[0022] In summary, the present invention has the following beneficial effects:

[0023] A plastic keel structure uses a lower top height adjustment component to conveniently adjust the height of the keel itself. With the help of a level instrument, the height of each installed keel and the floor installed thereon can be easily made consistent. By changing the position of the rigid support block, the size of the extrusion force between the external hanging block and the edges of the two floors can be adjusted, and the height and relative angle of the edges between the two adjacent floors can be conveniently adjusted to ensure the flatness and consistency of the floor in details.

[0024] Another object of the present invention is to provide a floor that is used in conjunction with the above-mentioned plastic keel structure. The structure of the floor edge is simple, the dimensional accuracy requirement is low, it is easy to combine with the plastic keel structure, and the floor is installed flat and firmly.

[0025] The above technical objectives of the present invention are achieved through the following technical solutions:

[0026] A floor is installed on a plastic keel structure. The edge of the floor in the length direction is wide at the top and narrow at the bottom. It has a groove and a lower protrusion adapted to the edge of the outer suspension block and the supporting horizontal column, as well as an upper protrusion. When the lower protrusions of adjacent floors are tightly abutted against the two rigid side portions of the same supporting horizontal column, the upper protrusions of the adjacent floors are in contact or separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a keel unit of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure after a keel unit is connected to the floor;

[0029] Figure 3 Detailed structural drawing of overlapping parts;

[0030] Figure 4 This is a detailed structural diagram of the lower top height adjustment component. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and preferred solutions.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0033] Example: Figure 1-4As shown, a plastic keel structure includes keel units 10 connected in sequence to form a whole keel, a male buckle 1 is provided at one end of the keel unit in the length direction, and a female buckle 2 matching and overlapping the male buckle is provided at the other end, and the keel unit includes an overlapping component 3 arranged horizontally in the middle of the length direction for placing the edges of adjacent floors, and a lower top height adjustment component 4 arranged in the middle of the length direction of the keel unit and located directly below the overlapping component. The overlapping component includes a supporting cross column 31, and a plurality of external hanging blocks 32 arranged on the central supporting column and extending outwardly from both ends of the supporting cross column.

[0034] The supporting crossbar includes a vertical rigid side 311 and a rigid bottom 312, a flexible core 313 in the same position as the outer suspension block, and a flexible core top 314 covering the flexible core. The outer suspension block is made of flexible material and includes a left suspension block 321 and a right suspension block 322 separated at the center of the connecting surface. A rigid support block 323 for changing the edge size and shape of the left and right suspension blocks is hidden on the connecting surface of the left and right suspension blocks.

[0035] A through hole 33 is provided in the overlapping part, which passes through the joint surface of the left hanging block and the right hanging block, the top of the flexible core and the same vertical position of the flexible core; a screw rod 34 is provided in the through hole, which is rotatably connected to the rigid bottom; the rigid support block is screwed on the screw rod. The top surface of the screw rod is not higher than the top of the outer hanging block, and the top of the screw rod has an adjustment groove for conveniently rotating the screw rod to adjust the height of the rigid support block.

[0036] The lower top height adjustment component is located in the middle of the vertical space between adjacent external suspension blocks, including a support bottom block 41, a connection block 42 fixed on the support bottom block, a threaded rod 43 rotatably connected to the connection block, a receiving hole 44 for accommodating the support bottom block and the connection block is provided on the bottom surface of the support cross column, and a screw hole 45 for cooperating with the threaded rod is opened above the receiving hole. The top surface of the threaded rod is not higher than the top of the support cross column, and the top of the threaded rod has an adjustment slot for conveniently rotating the threaded rod to adjust the overall height of the keel unit.

[0037] A keel unit is provided with at least three external hanging blocks and two lower top height adjustment components.

[0038] like Figure 2 , 3 As shown, a floor has an edge in the length direction of the floor that is wider at the top and narrower at the bottom, and has a groove 50 and a lower protrusion 51, as well as an upper protrusion 52 that are adapted to the edges of the external suspension block and the supporting horizontal column. When the lower protrusions of adjacent floorboards are tightly abutted against the two rigid side portions of the same supporting horizontal column, the upper protrusions of the adjacent floorboards are in contact or separated.

Claims

1. A plastic keel structure, comprising keel units (10) connected in sequence to form a whole keel, wherein one end of the keel unit in the length direction is provided with a male buckle (1), and the other end is provided with a female buckle (2) matching and overlapping with the male buckle, characterized in that: The keel unit comprises an overlapping component (3) disposed transversely in the middle of the length direction for accommodating the edges of adjacent floors, and a lower top height adjustment component (4) disposed in the middle of the length direction of the keel unit and located directly below the overlapping component; The overlapping component comprises a supporting cross column (31), and a plurality of external hanging blocks (32) arranged alternately and side by side on the supporting cross column (31) and extending outwardly from both ends of the supporting cross column; The supporting cross column comprises a vertical rigid side portion (311) and a rigid bottom portion (312), a flexible core portion (313) which is located in the same position as the external suspension block, and a flexible core top portion (314) covering the flexible core portion; The outer suspension block is made of a flexible material and comprises a left suspension block (321) and a right suspension block (322) separated at the center of the connecting surface; a rigid support block (323) for changing the edge size and shape of the left and right suspension blocks is hidden on the connecting surface of the left and right suspension blocks; The overlapping component is provided with a through hole (33) penetrating the joint surface of the left hanging block and the right hanging block, the top of the flexible core and the same vertical position of the flexible core; a screw rod (34) rotatably connected to the rigid bottom is provided in the through hole; the rigid support block is screwed to the screw rod; A keel unit is provided with at least three external hanging blocks and two lower top height adjustment components.

2. A plastic keel structure according to claim 1, characterized in that: The top surface of the screw rod is not higher than the top end of the external suspension block, and the top of the screw rod is provided with an adjustment groove for conveniently rotating the screw rod to adjust the height of the rigid support block.

3. A plastic keel structure according to claim 1, characterized in that: The lower top height adjustment component is located in the middle of the vertical space between adjacent external suspension blocks, and includes a supporting bottom block (41), a connecting block (42) fixedly mounted on the supporting bottom block, and a threaded rod (43) rotatably connected to the connecting block. A receiving hole (44) for accommodating the supporting bottom block and the connecting block is provided on the bottom surface of the supporting cross column, and a screw hole (45) for cooperating with the threaded rod is opened above the receiving hole.

4. A plastic keel structure according to claim 3, characterized in that: The top surface of the threaded rod is not higher than the top end of the supporting cross column, and the top of the threaded rod is provided with an adjustment groove for conveniently rotating the threaded rod to adjust the overall height of the keel unit.

5. A floor matching the plastic keel structure according to any one of claims 1 to 4, characterized in that: The edge of the floor in the length direction is wider at the top and narrower at the bottom, and has a groove (50) and a lower protrusion (51) adapted to the edge of the outer suspension block and the supporting horizontal column, as well as an upper protrusion (52). When the lower protrusions of adjacent floors are tightly abutted against the two rigid side portions of the same supporting horizontal column, the upper protrusions of the adjacent floors are in contact or separated.

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