TWI672421B - Tile leveling structure - Google Patents

Abstract

The invention discloses a tile leveling auxiliary structure, which comprises a plate body, wherein an internal accommodating space is formed; and an extension member, a part of the accommodating limit is fixed in the accommodating space, and the other part is from the accommodating space toward The lower extension extends out of the plate body; in operation, after rotating the plate body, the adjustment block is advanced, so that the first extension portion (and the second extension portion) of the extension member is introduced into the long groove by using the V-shaped open end guide. Reusing the bottom end of the L-shaped first extension portion (and the second extension portion) and the card abutting end of the plate body and the upper inclined surface of the adjustment block to abut each other, so that the lower surface of the adjustment block is adjacent to the adjacent side at the same time The two tiles are leveled, which is easy to operate and easy to assemble. It can be recycled in reverse operation after the leveling of the tiles, to reduce cost and environmental protection.

Description

Tile leveling auxiliary structure

The present invention relates to a field of construction related, and more particularly to a tile leveling auxiliary structure.

According to the conventional magnetic tile leveler, a T-shaped seat and an abutting seat are formed, and the T-shaped seat is provided with a bottom plate including a front side plate and a rear side plate, and is connected with a handle portion and a handle portion. And a slab of a perforated portion, wherein the front side panel and the rear side panel have a plurality of cylindrical ribs, and the front side panel and the center of the rear side panel are respectively recessed inwardly to provide a recess; and the abutting portion passes through the through hole portion, After the abutting seat applies a downward force to the tile, the flatness between the top and bottom surfaces of each tile can be adjusted.

However, the front side panel and the rear side panel of the bottom plate of the T-shaped seat of the conventional tile screed are too large, which causes difficulty in construction, that is, when it is in the actual construction state, the two tiles and The cement glue and the tile adhesive can not be evenly filled between the gaps of the front side plate and the rear side plate, so that the tile and the cement cannot be firmly and firmly bonded, resulting in collapse of the force receiving end of the tile, and the non-stressed end is lifted. In the situation, it is impossible to achieve the effect of tile leveling.

An object of the present invention is to provide a tile leveling auxiliary structure, which is rotated after the plate body is rotated, so that the first extension portion (and the second extension portion) of the extension member utilizes a V-shaped The open end guide is introduced into the long groove, and the bottom end of the L-shaped first extension portion (and the bottom end of the L-shaped second extension portion) and the card abutment end of the plate body and the upper slope of the adjustment block are used. Relying on the limit position, the lower surface of the adjusting block simultaneously leveling the adjacent two tiles, which is not only easy to operate, but also easy to assemble, and can be recycled in the reverse operation step after the leveling of the tile is completed. Use to achieve cost reduction and environmental protection.

Furthermore, the accommodating space in the plate body may be provided with a plurality of fixed blocks arranged in a matrix to define at least two combined spaces arranged in an up-and-down manner, and the frame-shaped portions of the extending members may be adjusted and disposed in different combined spaces. In order to adjust the upper and lower positions of the extension members, corresponding to the tiles suitable for different thicknesses, increasing the breadth of use thereof.

The invention provides a tile leveling auxiliary structure, comprising a plate body having an accommodating space formed therein; and an extension member, a part of which is received and fixed in the accommodating space, and the other part The portion extends downward from the accommodating space of the plate body to pass through the plate body.

In certain embodiments, the panel system is integrally formed.

In some embodiments, the extension member has at least a frame portion and a first extension portion, and the frame portion is a ring frame fixed in the receiving space of the plate body, the first extension The portion is substantially L-shaped and extends downward from the bottom end of the frame portion and passes through the accommodating space of the plate body, and finally extends and extends toward the front side of the plate body.

In some embodiments, the extension further includes a second extension portion, substantially L-shaped, extending downward from the bottom end of the frame portion and passing through the accommodating space of the plate body, and finally The rear side direction of the plate body is curved and extended, and the left side or right side projection system of the first extension portion and the second extension portion is substantially inverted T-shaped.

In some embodiments, the front side bottom of the board body extends forwardly with a front bump, and the front bump forms a first recess corresponding to the first extension portion, and the rear side bottom of the board body faces backward A rear bump is further extended, and the rear bump is formed with a second recess corresponding to the second extension.

In some embodiments, the bottom surface of the front bump forms a concave arc slope from the board body toward the front and downward, or the front end of the front bump bottom surface forms a downward oblique plane, and at the end thereof The part forms a card end.

In certain embodiments, the panel system is comprised of at least two daughterboards.

In some embodiments, the at least two sub-boards are a first sub-board body and a second sub-board body, and the first sub-board body and the second sub-board system are detachably coupled by a male and female fastening means. Combined with fixation.

In some embodiments, the extension has at least a frame portion and a first extension The frame portion is a ring frame fixed in the accommodating space of the plate body. The first extending portion is substantially L-shaped and extends downward from the bottom end of the frame portion and passes through the frame. The accommodating space of the plate body is finally bent and extended toward the front side of the plate body.

In some embodiments, the extension member has at least a frame portion and a first extension portion, and the frame portion is a ring frame fixed in the receiving space of the plate body, the first extension The portion is substantially L-shaped and extends downward from the bottom end of the frame portion and passes through the accommodating space of the plate body, and finally extends and extends toward the front side of the plate body.

In some embodiments, a plurality of fixed blocks are formed in the accommodating space, and are arranged in a matrix to define at least two combined spaces arranged up and down, and the frame portion of the extending member is adjustable in different settings. Each of the combined spaces is adapted to adjust the up and down position of the extension.

In some embodiments, a plurality of fixed blocks are formed in the accommodating space, and are arranged in a matrix to define at least two combined frame grooves arranged up and down, and the frame portion of the extending member is adjustablely disposed at Different combinations of the frame slots are provided to adjust the upper and lower positions of the extension member.

In some embodiments, the front side bottom of the board body extends forwardly with a front bump, and the front bump forms a first recess corresponding to the first extension portion, and the rear side bottom of the board body faces backward A rear bump is further extended, and the rear bump is formed with a second recess corresponding to the second extension.

In some embodiments, the bottom surface of the front bump forms a concave arc slope from the board body toward the front and downward, or the front end of the front bump bottom surface forms a downward oblique plane, and at the end thereof The part forms a card end.

In some embodiments, an adjustment block is further included, the adjustment block is a triangular block, and an upper inclined surface of the triangular block is formed with a plurality of side-by-side protrusions, and the axial direction of each protrusion is It is perpendicular to the axial direction of the triangular block, and the triangular block is formed with a long groove in the axial direction for the portion of the extension exposed outside the plate to move therein.

In some embodiments, an open end of the elongated slot of the adjustment block is V-shaped.

100‧‧‧Block leveling auxiliary structure

1‧‧‧ board

10‧‧‧The first sub-board

101‧‧‧ male buckle

10’‧‧‧Second sub-plate

101’‧‧‧ Female button

11‧‧‧ accommodating space

12‧‧‧ front bump

121‧‧‧ concave arc bevel

121’‧‧‧lower inclined plane

122‧‧‧ card arrival

13‧‧‧ rear bumps

14‧‧‧First depression

15‧‧‧Second depression

16‧‧‧Fixed blocks

17‧‧‧Combined space

17’‧‧‧Combined space

2‧‧‧Extensions

21‧‧‧ Frame Department

22‧‧‧First Extension

23‧‧‧Second extension

200‧‧‧ tiles

300‧‧‧ tiles

400‧‧‧Adjustment block

410‧‧‧Triangular block

420‧‧ ‧ protrusion

430‧‧ long slot

440‧‧‧Open end

500‧‧‧cement layer

600‧‧‧floor

G‧‧‧ gap

100’‧‧‧ leveling auxiliary structure

1'‧‧‧floor

2’‧‧‧ vertical board

3’‧‧‧through hole

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the rear side view of a first embodiment in which the plate body is integrally formed in the tile leveling auxiliary structure of the present invention.

Fig. 2 is a perspective view showing the front side view of the first embodiment in which the plate body is integrally formed in the tile leveling auxiliary structure of the present invention.

Fig. 3A is a longitudinal cross-sectional view showing only the first extension portion in the first embodiment of the tile leveling auxiliary structure of the present invention.

Fig. 3B is a longitudinal cross-sectional view showing the first extension portion and the second extension portion in the first embodiment of the present invention.

Fig. 4 is a rear perspective view showing a second embodiment of the plate system in which the two-plate body is fastened and fixed to each other in the tile leveling auxiliary structure of the present invention.

Fig. 5 is a front perspective view showing the second embodiment of the plate system in which the two-plate body is fastened and fixed to each other in the tile leveling auxiliary structure of the present invention.

Fig. 6 is a cross-sectional view showing the line A-A in Fig. 4.

Fig. 7 is a schematic cross-sectional view taken along line B-B in Fig. 4.

Figure 8 is an exploded perspective view showing the second embodiment of the tile leveling auxiliary structure of the present invention.

Figure 9 is a side plan view showing the bottom surface of the front bump in the second embodiment of the present invention.

Figure 10 is a side plan view showing the bottom surface of the front bump of the second embodiment in a downward inclined plane in the tile leveling auxiliary structure of the present invention.

Figure 11 is a view showing the auxiliary structure of the tile leveling device of the present invention. In the second embodiment, the accommodating space has two joint frame slots, and the ring frame of the extension member is limited to the side view plane at the joint ring groove at the upper position. schematic diagram.

Figure 12 is a perspective view showing a tile leveling auxiliary structure of the present invention. In the second embodiment, the accommodating space has two joint frame slots, and the ring frame of the extension member is limited to a side view plane at a lower joint groove. schematic diagram.

Figure 13 is an exploded perspective view showing the second embodiment of the present invention in conjunction with an adjustment block.

Fig. 14 is a partially enlarged top plan view showing Fig. 13.

Fig. 15 is a view showing the operation of the second embodiment of the present invention, in which the second embodiment is inserted between adjacent two tiles and turned.

Figure 16 is a schematic view showing the operation of the tile leveling auxiliary structure of the present invention in which the second embodiment is inserted between adjacent two tiles and turned to be adjusted after the adjustment block.

Figure 17 is a schematic view showing the operation of the second embodiment of the present invention in combination with the adjustment block.

Figure 18 is a perspective view showing the second embodiment of the present invention in which the extension member of the second embodiment has a second extension portion.

Figure 19 is a cross-sectional view showing the 18th figure.

Figure 20 is a side plan view showing the 18th figure.

Figure 21 is a schematic view showing the second embodiment of the tile leveling auxiliary structure of the second extension portion of the present invention combined with the adjustment block.

Figure 22 is an exploded perspective view showing the adjustment block of the present invention in combination with other tile leveling auxiliary structures created by the inventors of the present invention.

Referring to FIGS. 1 to 3A, a tile leveling auxiliary structure 100 according to a first embodiment of the present invention includes a board body 1 and an extension member 2.

In the present embodiment, the plate body 1 is integrally formed, and an accommodation space 11 is formed inside thereof.

A part of the extension member 2 is received and fixed in the accommodating space 11, and another portion of the extension member 2 extends downwardly from the accommodating space 11 of the board body 1 through the board body 1; that is, The extension member 2 has at least a frame portion 21 and a first extension portion 22, and the frame portion 21 is a rectangular ring frame (the rectangular ring frame is illustrated as a legend, and may also be a polygon or a circle, etc., The limit is fixed in the accommodating space 11 of the plate body 1 , and the first extending portion 22 is substantially L-shaped, and extends from the bottom end of the frame portion 21 and penetrates the accommodating space of the plate body 1 . 11. Finally, it is bent and extended toward the front side of the board 1.

Furthermore, please refer to FIG. 3B at the same time, the extension member 2 further includes a second extension portion 23 (refer to FIGS. 18 to 20, the structure of which is explained in the following second embodiment) , which is substantially L-shaped, extends downward from the bottom end of the frame portion 21 and passes through the accommodating space 11 of the plate body 1 , and finally extends and extends toward the rear side of the plate body 1 , and the first extending portion 22 and the first portion The left or right projection system after the two extension portions 23 are combined is substantially inverted T-shaped, that is, the first extension portion 22 and the The L-directions of the two extensions 23 are mutually opposite directions.

In addition, a front bump 12 extends forwardly from the front side bottom of the board body 1, and a first recess 14 is formed in the front protrusion 12 corresponding to the first extension portion 22. The rear side bottom of the board body 1 extends rearward. a rear bump 13 and a rearward projection 13 corresponding to the second extension portion 23 is formed with a second recess 15; thereby, in use, the operator can pass through the first recess because the operator looks from the top to the bottom 14 The bottom end of the L-shaped portion of the first extension portion 22 is seen so that the bottom end of the L-shaped portion of the second extension portion 23 can be seen through the second recess portion 15 for the operator to align and operate.

The bottom surface of the front bump 12 forms a concave arc slope from the front and downward of the plate body 1 (refer to FIG. 9), or the front end of the front surface of the front bump 12 is downwardly formed to form a sloped plane. Referring to Fig. 10, it is convenient to offset the protrusions 420 of the adjusting block 400 against each other, which will be further described and numbered in the second embodiment of the present invention.

Referring to FIG. 4 to FIG. 8 again, the tile leveling auxiliary structure 100 of the second embodiment of the present invention includes a board body 1 and an extension member 2, which is the first embodiment and the foregoing first embodiment. The elements of the examples are partially overlapped, and therefore the component numbers in the drawings of the present embodiment are the component numbers of the components which are repeated or identical in the foregoing first embodiment.

The board body 1 of the embodiment is composed of a first sub-board body 10 and a second sub-board body 10'. Of course, the board body 1 can also be composed of a plurality of sub-board bodies. The board body is illustrated as a legend, but is not limited thereto; the first sub-board body 10 and the second sub-board body 10 ′ can be detachably coupled and fixed by a male-female fastening means, that is, the first sub-board body The 10 series may respectively form a male button portion 101 on opposite sides of the central axis thereof, and the second daughter board body 10' may respectively form a female button portion 101' on opposite sides of the central axis thereof, The male button portion 101 and the female button portion 101' are detachably coupled to each other to detachably combine the first daughter board body 10 and the second daughter board body 10' with each other; and the first daughter board body The detachable combination fixing manner between the 10 and the second sub-board body 10' can be applied to various means known at present, and therefore will not be described again.

A part of the extension member 2 is received and fixed in the accommodating space 11, and another portion of the extension member 2 extends downwardly from the accommodating space 11 of the board body 1 through the board body 1; that is, The extension member 2 has at least a frame portion 21 and a first extension portion 22, and the frame portion 21 is a rectangular ring frame (the rectangular ring frame is illustrated as a legend, and may also be a polygon or a circle, etc., The limit is fixed in the accommodating space 11 of the plate body 1 , and the first extending portion 22 is substantially L-shaped and is from the frame portion 21 . The bottom end extends downward and passes through the accommodating space 11 of the plate body 1, and finally extends in a direction toward the front side of the plate body 1.

Furthermore, as shown in FIGS. 18 to 20, the extension member 2 further includes a second extension portion 23 which is substantially L-shaped and extends downward from the bottom end of the frame portion 21 and passes through the plate body 1. The accommodating space 11 is finally bent and extended toward the rear side of the board body 1, and the left side or right side projection system of the first extending portion 22 and the second extending portion 23 is substantially inverted T-shaped, that is, the first extension. The L-directions of the portion 22 and the second extension portion 23 are mutually opposite directions.

Referring to FIG. 11 and FIG. 12 again, a plurality of fixing blocks 16 are formed in the accommodating space 11 and arranged in a matrix to define at least two joint spaces arranged in an up-and-down manner, and a frame portion of the extension member 2 The 21 series can be adjusted and arranged in different joint spaces to adjust the upper and lower positions of the extension member 2; in the 11th and 12th drawings, the two combined spaces 17, 17' arranged above and below are illustrated, but Not limited to this, it can be adjusted to the appropriate thickness according to the thickness of the tiles 200, 300 (as shown in Figures 15 to 17). As shown in Fig. 11, the frame portion 21 of the extension member 2 is fixed in the upper joint space 17 to match the thinner tile; and as shown in Fig. 12, the extension member The frame portion 21 of the second portion is fixed in the lower combined space 17' to match the thicker thickness of the tile.

A front protrusion 12 is formed on the front side of the front side of the board body 1, and a first recess 14 is formed in the front protrusion 12 corresponding to the first extension portion 22. The rear side bottom of the board body 1 extends rearward. a bump 13 is formed, and a second recess 15 is formed at the second extension 23 corresponding to the rear bump 13; thereby, when used, the operator can see through the first recess 14 because the operator looks from the top to the bottom. To the bottom end of the L-shaped portion of the first extension portion 22, the bottom end of the L-shaped portion of the second extension portion 23 can be seen through the second recess portion 15, facilitating alignment and operation by the operator.

Referring to FIG. 9 and FIG. 10 again, the bottom surface of the front bump 12 is formed with a concave arc slope 121 (shown in FIG. 9) from the front side of the board body 1 and downwardly, and a rear end portion is formed. The card abutting end 122, or the front end of the bottom surface of the front bump 12 is formed downwardly to form a lower inclined plane 121' (as shown in FIG. 10), and the card abutting end 122 is formed at the end portion, which is convenient and adjustable. The protrusions 420 of the block 400 are mutually offset and will be detailed in the following description of the actuation mode.

Referring to FIG. 13 and FIG. 14 , the adjustment block 400 is a triangular block 410, and a plurality of protrusions are formed side by side at an upper slope of the triangular block 410. 420, the axial direction of each protrusion 420 is perpendicular to the axial direction of the triangular block 410, and the triangular block 410 is formed with a long groove 430 in the axial direction for the extension member 2 to be exposed outside the plate body 1. The portion (ie, the first extension portion 22 and the second extension portion 23) moves therein; further, an open end 440 of the elongated slot 430 of the adjustment block 400 is V-shaped to facilitate the first extension portion 22 and the second portion The extension portion 23 is guided into the long groove 430 to achieve the guiding effect.

Referring to FIG. 15, the adjacent two tiles 200, 300 are adjacently disposed on a cement layer 500, and the cement layer 500 is laid on a floor 600, and the adjacent two tiles 200, 300 Laying on the cement layer 500 to make its horizontal position rugged; and the tile leveling auxiliary structure 100 of the present invention penetrates the gap G between the two tiles 200, 300 into the cement layer 500 with its extension 2 The plate body 1 and the gap G (or the surfaces of the two tiles 200, 300) are framed by a predetermined distance, and the bottom end of the L-shaped first extension portion 22 of the extension member 2 extends substantially in the gap G. The axial direction is parallel, and at this time, the longitudinal direction (or the longitudinal direction) of the plate body 1 is perpendicular to the axial direction of the gap G; thereafter, the plate body 1 is rotated by an angle of 90 degrees in the counterclockwise direction.

Referring to FIG. 16 again, after the plate body 1 is rotated by 90 degrees in the counterclockwise direction, the long axis direction (or the length direction) of the plate body 1 is parallel to the axial direction of the gap G, and the extension member 2 is presented. The bottom end of the L-shaped first extending portion 22 extends in the right direction as shown in FIG. 16, and is placed on the upper surface of one of the tiles 200 by the bottom surface of the adjusting block 400 to make the V-shaped groove 430. The open end 440 is oriented in the direction of the first extension 22 of the extension 2 and advances the adjustment block 400 in the direction of the first extension 22 of the extension 2.

Referring to FIG. 17 again, the V-shaped open end 440 of the long groove 430 of the adjusting block 400 touches the first extending portion 22 of the extending member 2 at a position between the gap G and the plate body 1 to The first extending portion 22 is guided into the long groove 430. Since the adjusting block 400 is a triangular block 410, the bottom surface of the plate body 1 interacts with the upper inclined surface of the triangular block 410 of the adjusting block 400, and is reused. The card abutting end 122 of the extending end 2 of the L-shaped first extending portion 22 having the same bottom end extending direction and the corresponding protruding portion 420 are mutually restrained, so that the first extension of the extension member 2 is L-shaped. The bottom end of the portion 22 is hooked against the lower surface of the tile 300 to be aligned with the bottom surface of the adjusting block 400. At the same time, the upper inclined surface of the triangular block 410 of the adjusting block 400 is abutted by the plate body 1 to adjust the block 400. The bottom surface of the triangular block 410 is pressed against the upper surface of the tile 200. Thus, since the lower surface of the triangular block 410 of the adjustment block 400 is a flat plane, the simultaneous pressing is performed. When the tiles 200 and 300 are pressed, the tiles 200 and 300 can be leveled.

By the above operation, after the leveling of the tiles 200, 300 is completed, the board 1 can be tilted by a small angle to disengage the card end 122 from the corresponding protrusion 420, and the adjustment block 400 is pushed away. The first extension 22 of the extension member 2, and then the plate body 1 is rotated 90 degrees in the counterclockwise direction (or clockwise direction) to move the tile leveling auxiliary structure 100 of the present invention upwardly away from the gap G, Therefore, the tile leveling auxiliary structure 100 of the present invention is not only easy to operate, but also easy to assemble, and can be used continuously after use, thereby achieving cost reduction and environmental protection effects.

Similarly, referring to FIGS. 18 to 21, the second extension portion 23 is added, and its function and efficacy are the same as those of the foregoing only the first extension portion 22, but since it is in operation, at the first The bottom end of the extending portion 22 is hooked against the lower surface of the tile 300. At the same time, the bottom end of the second extending portion 23 can be hooked against the lower surface of the tile 200, so that the two tiles 200, 300 can be further reliably The lower surface of the triangular block 410 of the adjustment block 400 is abutted to complete the leveling.

In addition, referring to FIG. 22, the adjustment block 400 of the present invention can also be used in conjunction with another leveling auxiliary structure 100', and the structure of the leveling auxiliary structure 100' includes a bottom plate 1' and a a vertical plate 2', and the vertical plate 2' is substantially inverted U-shaped and defines a through hole 3' with the bottom plate 1', and the adjustment block 400 used in the present invention can penetrate into the through hole 3'; Adjacent two tiles (not shown) can be respectively placed on the upper surface of the bottom plate 1' on the front and rear sides of the vertical plate 2', and the adjustment block 400 is inserted into the through hole 3' to adjust the block. The lower surface of 400 is simultaneously pressed against the upper surface of the adjacent two tiles (not shown), and the protrusion 420 of the upper slope of the triangular block 410 of the adjustment block 400 is fixed to the top of the vertical plate 2'. Above the hole 3', in order to level the adjacent two tiles, the effect of leveling the tile can also be achieved.

While the foregoing is directed to the various embodiments of the present invention, further or further embodiments of the present invention may be devised without departing from the basic scope thereof, and the basic scope thereof is defined by the following claims. Although the present invention has been explained in connection with the preferred embodiments, it is not intended to limit the invention. It should be noted that many other similar embodiments can be constructed in accordance with the teachings of the present invention, which are within the scope of the present invention.

Claims (7)

The utility model relates to a tile leveling auxiliary structure, which comprises: a plate body integrally formed with an accommodation space formed therein; and an extension piece, a part of which is received and fixed in the accommodation space The other part extends from the accommodating space of the board body downwardly to the board body; wherein the extension member has at least a frame portion and a first extension portion, and the frame portion is a ring frame The limiting portion is fixed in the accommodating space of the plate body, and the first extending portion is substantially L-shaped, extending downward from the bottom end of the frame portion and passing through the accommodating space of the plate body, and finally And extending to the front side of the plate body; wherein the extension member further comprises a second extension portion, substantially L-shaped, extending downward from the bottom end of the frame portion and passing through the receiving space of the plate body And finally extending toward the rear side of the plate body, the left or right projection system of the first extension portion and the second extension portion is substantially inverted T-shaped; and the front side bottom portion of the plate body extends forwardly a front bump, and the front bump corresponds to a first recess formed at the first extension, the board More towards the bottom of the rear side after extending a block kyphosis, kyphosis and the second block is formed with a recess at a portion corresponding to the second extension. The tile leveling auxiliary structure according to claim 1, wherein the bottom surface of the front bump forms a concave arc slope from the board body toward the front and downward, or the front end of the front bump is downwardly facing downward. An inclined plane is formed and a snap end is formed at the end. The tile leveling auxiliary structure according to claim 2, further comprising an adjusting block, wherein the adjusting block is a triangular block, and a plurality of protrusions are arranged side by side at an upper inclined surface of the triangular block. The axial direction of each of the protrusions is perpendicular to the axial direction of the triangular block, and the triangular block is formed with a long groove in the axial direction for the extension member to be exposed outside the plate body. Wherein, an open end of the long groove of the adjusting block is V-shaped. A tile leveling auxiliary structure includes: a plate body having an accommodating space formed therein; the plate system is composed of at least two sub-board bodies; and an extension member, a part of which is received and fixed in the limit In the accommodation space, another part Opening the board body from the accommodating space of the board body; wherein the at least two sub-board bodies are a first sub-board body and a second sub-board body, the first sub-board body and the second The sub-board system is detachably fixed and fixed by a male and female fastening means. The extension member has at least a frame portion and a first extension portion, and the frame portion is a ring frame, and the limit position is fixed on the plate body. In the accommodating space, the first extending portion is substantially L-shaped, extending downward from the bottom end of the frame portion and passing through the accommodating space of the plate body, and finally extending and extending toward the front side of the plate body; Wherein, the extension member further comprises a second extension portion, substantially L-shaped, extending downward from the bottom end of the frame portion and passing through the accommodating space of the plate body, and finally facing the rear side of the plate body The left side or the right side projection of the first extension portion and the second extension portion are substantially inverted T-shaped; and wherein the front side bottom portion of the board body extends forwardly with a front bump, and the front portion The bump is formed with a first recess at the first extension portion, and the rear side bottom of the plate body extends rearward and rearward. Block, kyphosis and the second block is formed with a recess at a portion corresponding to the second extension. The tile leveling auxiliary structure according to claim 4, wherein a plurality of fixed blocks are formed in the accommodating space, and are arranged in a matrix to define at least two joint spaces arranged up and down, the extension piece The frame portion is adjustably disposed in each of the different combination spaces to adjust the upper and lower positions of the extension member. The tile leveling auxiliary structure according to claim 4, wherein the bottom surface of the front bump forms a concave arc slope from the board body toward the front and downward, or the front end of the front bump is downwardly facing downward. An inclined plane is formed and a snap end is formed at the end. The tile leveling auxiliary structure according to claim 6, further comprising an adjusting block, wherein the adjusting block is a triangular block, and an upper inclined surface of the triangular block is formed with a plurality of protrusions arranged side by side. The axial direction of each of the protrusions is perpendicular to the axial direction of the triangular block, so that the card abutting end and the corresponding protrusion are mutually restrained, and the triangular block is formed with a long axial direction. a slot for the first extension portion and the second extension portion to move therein, and an open end of the elongated slot of the adjustment block is V-shaped.