Tile corner support

Abstract

The utility model discloses a kind of ceramic tile chamfer support frame, it is related to ceramic tile cutting technical field.The ceramic tile chamfer support frame includes at least two groups of independent operating units, and each group of operating units includes long strip frame;Limiting structure is arranged on the long strip frame;Adjusting rod is hinged to the long strip frame;Wherein, two groups of operating units are arranged in parallel by adjustable spacing mode, so that the relative distance between the limiting structure can be changed, to adapt to ceramic tile of different sizes;The adjusting rod constitutes inclined support surface in unfolded state, for supporting ceramic tile to carry out angle cutting.This ceramic tile chamfer support frame can adapt to the angle cutting needs of ceramic tile of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of tile cutting technology, and in particular to a tile chamfering support frame. Background Technology

[0002] In the field of architectural decoration, especially in indoor and outdoor tile laying projects, the "begonia corner" technique is widely used to achieve a beautiful corner treatment effect. The core of this technique is to pre-cut the edge of the two adjacent tiles into a precise 45-degree angle, and then splice them at the corner. The resulting corner joint is delicate and smooth, effectively avoiding the exposure of the original tile body side, and significantly improving the overall aesthetics and refinement of the decoration.

[0003] However, existing technical documents on tile corner cutting devices generally have significant limitations: their structural dimensions and clamping range are often limited due to fixed or adjustable ranges, making it difficult to flexibly adapt to tiles of different sizes. This deficiency can barely handle small tiles, but the problem becomes particularly prominent when cutting large, bulky tiles. The physical constraints of the cutting device itself, such as insufficient worktable length and width, limited cutting stroke, and the inability of the clamping mechanism to effectively hold large tiles, directly result in the difficulty of effectively and stably cutting the edges of large tiles at a 45-degree angle. Even if forced, there are significant safety hazards and a risk of loss of precision, severely reducing work efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a tile chamfering support frame that can adapt to the corner cutting needs of tiles of different sizes.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A tile chamfering support frame includes at least two sets of independent operating units, each set of operating units including a long strip frame; a limiting structure disposed on the long strip frame; and an adjusting rod hinged to the long strip frame; wherein the two sets of operating units are arranged in parallel with an adjustable spacing, so that the relative distance between the limiting structures can be changed to accommodate tiles of different sizes; the adjusting rod, in the unfolded state, forms an inclined support surface for supporting the tile for chamfering.

[0007] In some embodiments, there is no rigid connection structure between the operating units, and the spacing is adjusted by the ground placement position.

[0008] In at least one embodiment, the limiting structure is a through groove formed in the side wall of the elongated frame, and the through grooves of the two sets of operating units remain coaxial after the spacing is adjusted.

[0009] In at least one embodiment, one end of the adjusting rod is provided with a hinge shaft, which is connected to the elongated frame and is disposed adjacent to the through groove.

[0010] In at least one embodiment, the tile chamfering support frame further includes a support rod, one end of which is hinged to the middle section of the adjusting rod, and the other end is detachably fixed to the elongated frame.

[0011] In at least one embodiment, the elongated frame is an H-shaped cross-section profile, including a first side plate, a second side plate, and a horizontal web connecting the first side plate and the second side plate; the first side plate and the second side plate extend inward on both sides to form a double-layer sidewall structure, which includes a first inner side plate and a second inner side plate; a snap-fit ​​gap extending along the length direction of the profile is formed between the first side plate and the first inner side plate, and between the second side plate and the second inner side plate; the first side plate and the first inner side plate are mutually parallel inclined surfaces, and the inclined surface forms an angle of ° with the horizontal web; the opening width of the snap-fit ​​gap is greater than or equal to the thickness of a standard ceramic tile, used to embed the side of the ceramic tile and keep it stably in an inclined state of °.

[0012] In at least one embodiment, the first side plate, the second side plate, the first inner side plate, and the second inner side plate are all V-shaped cross sections with openings facing the side, and the V-shaped openings of the first side plate and the second side plate are symmetrical and arranged facing each other.

[0013] In at least one embodiment, a first snap-fit ​​gap and a second snap-fit ​​gap are formed between the first side plate and the first inner side plate of the V-shaped cross-section; a third snap-fit ​​gap and a fourth snap-fit ​​gap are formed between the second side plate and the second inner side plate of the V-shaped cross-section.

[0014] In at least one embodiment, two through holes are provided extending along the length of the profile between the first and second snap-fit ​​gaps and between the third and fourth snap-fit ​​gaps, with the two through holes located on both sides of the horizontal web.

[0015] In at least one embodiment, the tile chamfering support bracket further includes a support foot, which is detachably mounted at the end of the elongated frame. The support foot has a C-shaped structure with the opening facing downwards. The two lower end faces of the support foot are flush with the bottom surface of the elongated frame when it is placed horizontally on the ground. Two insert rods are fixed to the upper side of the support foot and are used to insert into two horizontal through holes.

[0016] In at least one embodiment, the horizontal web divides the inner cavity of the H-shaped cross-section profile into an upper cavity and a lower cavity; the through groove is formed on the side wall of the upper cavity; and the adjusting rod and the support rod are housed in the upper cavity in a folded state.

[0017] In at least one embodiment, the side wall of the lower cavity has a through groove on the side opposite to the upper cavity; the lower cavity also has an adjusting rod hinged to it and a supporting rod provided thereon, and its structure is the same as that of the upper cavity, and it can be folded and accommodated in the lower cavity.

[0018] In at least one embodiment, the tile chamfering support further includes a locking assembly, which includes a hook with an upper part that can be hooked to the end of an adjusting rod and a lower part that is a rod body; a through hole on the horizontal web for the rod body of the hook to pass through; and a spring sleeved on the rod body located below the horizontal web, with its top end abutting against the bottom surface of the horizontal web and its bottom end fixedly connected to the end of the rod body.

[0019] Compared with existing technologies, this invention achieves at least the following beneficial effects: Because the two sets of operating units are independent and freely movable, construction personnel can steplessly adjust the parallel distance between them, thereby precisely matching the relative distance between the limiting structures to the width of the tile to be processed. This effectively solves the problem of existing devices having fixed structural dimensions that cannot accommodate both small and large tiles. Simultaneously, through its separate design, this invention completely eliminates the constraint of device size on the "size of the object being processed." For extra-large tiles, simply moving the two operating units to their respective edges provides stable support. Furthermore, this invention allows for rapid size switching by simply moving two independent units, making operation extremely convenient, eliminating complex debugging processes, significantly reducing auxiliary time, and improving overall construction efficiency. Attached Figure Description

[0020] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of the ceramic tile chamfering support frame of this utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the adjusting rod and support rod in the unfolded state according to the embodiment;

[0023] Figure 3 for Figure 2 Exploded view;

[0024] Figure 4 for Figure 3 A sectional view;

[0025] Figure 5 This is a front view of the elongated frame of this utility model;

[0026] Figure 6 for Figure 4 Enlarged view of region A in the middle;

[0027] Figure 7 This is a diagram showing the usage state of the tile chamfering support bracket of this utility model in the parallel adjustable mode.

[0028] Figure 8 This is a diagram showing the usage state of the ceramic tile chamfering support bracket in its coaxial alignment and extension mode according to this utility model.

[0029] Figure 9 This is a diagram showing the usage state of the ceramic tile chamfering support frame of this utility model when clamping conventional ceramic tiles.

[0030] The diagram is labeled as follows: 1. Long strip frame; 11. First side plate; 111. First inner side plate; 12. Second side plate; 121. Second inner side plate; 13. Horizontal web plate; 131. Through hole; 132. Reinforcing rib; 14. Snap-fit ​​gap; 14a. First snap-fit ​​gap; 14b. Second snap-fit ​​gap; 14c. Third snap-fit ​​gap; 14d. Fourth snap-fit ​​gap; 15. Through hole; 16. Upper cavity; 17. Lower cavity; 18. Shrinkage groove; 2. Limiting structure; 3. Adjusting rod; 31. Hinge shaft; 32. Through hole; 33. Hinge seat; 4. Support rod; 41. U-shaped limiting block; 5. Support foot; 51. Insert rod; 6. Locking assembly; 61. Hook; 611. Hook part; 612. Rod body part; 62. Spring. Detailed Implementation

[0031] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present invention more complete and to fully convey the concept of the present invention to those skilled in the art.

[0032] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0033] like Figures 1 to 9As shown, the tile chamfering support frame of this utility model includes at least two independent operating units. Each operating unit includes: a long strip frame 1, a limiting structure 2 disposed on the long strip frame 1, and an adjusting rod 3 hinged to the long strip frame 1. The two operating units are arranged in parallel with an adjustable spacing, allowing the relative distance between the limiting structures 2 to be varied to accommodate tiles of different sizes. In its unfolded state, the adjusting rod 3 forms an inclined support surface for supporting the tile during chamfering.

[0034] Specifically, in this embodiment, there is no rigid connection structure between the two sets of operating units; the spacing is adjusted by the placement position on the ground. The limiting structure 2 is a through slot formed in the side wall of the elongated frame 1, and the through slots of the two sets of operating units remain coaxial after the spacing is adjusted. One end of the adjusting rod 3 is provided with a hinge shaft 31, which is connected to the elongated frame 1 and is located adjacent to the through slot. Furthermore, in this embodiment, a hinge seat 33 is provided on the side of the elongated frame 1 adjacent to the through slot. The hinge shaft of the adjusting rod 3 is rotatably connected to the hinge seat 33, wherein the hinge seat 33 is detachably fixed to the elongated frame 1 by bolts and nuts.

[0035] During construction, the two sets of operating units are placed on a stable working surface with their long strip frames 1 parallel to each other along their length. The dimensions are then adjusted according to the actual width of the tile (T1) along a direction perpendicular to the length of the long strip frame 1 (i.e.,...). Figure 7 The two units are moved synchronously in the Y direction to adjust the distance between them. After adjustment, the tiles to be cut into the corners are respectively inserted into the corresponding through slots on the long strip frame 1 of the two units, thus effectively solving the technical dilemma in the prior art that the fixed size of the device cannot adapt to tiles of different widths.

[0036] To fix the tilted state of the adjusting rod 3 after it is unfolded, the tile chamfering support frame also includes a support rod 4. One end of the support rod 4 is hinged to the middle section of the adjusting rod 3, and the other end is detachably fixed to the elongated frame 1. Specifically, in this embodiment, the support rod 4 is detachably fixed to the elongated frame 1 by providing a U-shaped limiting block 41 on the upper surface of the elongated frame 1. The U-shaped limiting block 41 is detachably fixed to the elongated frame 1 by bolts and nuts, and the end of the support frame that rests on the elongated frame 1 is detachably placed inside the U-shaped limiting block 41.

[0037] refer to Figure 5Specifically, the elongated frame 1 is an H-shaped cross-section profile, including a first side plate 11, a second side plate 12, and a horizontal web 13 connecting the first side plate 11 and the second side plate 12. The first side plate 11 and the second side plate 12 extend inwards on both sides to form a double-layer sidewall structure, which includes a first inner side plate 111 and a second inner side plate 121. Interlocking gaps 14 extending along the length of the profile are formed between the first side plate 11 and the first inner side plate 111, and between the second side plate 12 and the second inner side plate 121. The first side plate 11 and the first inner side plate 111 are parallel inclined surfaces, and these inclined surfaces form a 60° angle with the horizontal web 13. The opening width of the interlocking gap 14 is greater than or equal to the thickness of a standard ceramic tile, used to embed the side edge of the tile and stably maintain it in a 60° inclined state. The first side plate 11, the second side plate 12, the first inner side plate 111, and the second inner side plate 121 all have V-shaped cross-sections with openings facing the sides, and the V-shaped openings of the first side plate 11 and the second side plate 12 are symmetrical and face each other. A first snap-fit ​​gap 14a and a second snap-fit ​​gap 14b are formed between the V-shaped cross-section of the first side plate 11 and the first inner side plate 111; a third snap-fit ​​gap 14c and a fourth snap-fit ​​gap 14d are formed between the V-shaped cross-section of the second side plate 12 and the second inner side plate 121. Specifically, in this embodiment, the width of the first interlocking gap 14a is 8.0±0.5mm; the width of the second interlocking gap 14b is 10.0±0.5mm; the width of the third interlocking gap 14c is 11.0±0.5mm; and the width of the fourth interlocking gap 14d is 12.0±0.5mm. The four interlocking gaps 14 constitute four different width specifications, which are used to clamp tiles with a width of 8mm, 10mm, 11mm, and 12mm thickness, respectively. During construction, the corresponding interlocking gap is selected according to the thickness of the tile. The 8mm thin tile is embedded in the first interlocking gap 14a; the 12mm thick tile is embedded in the fourth interlocking gap 14d; and the width tolerance of each interlocking gap is ±0.5mm to ensure interference fit and self-locking.

[0038] refer to Figure 9To prevent the support frame from tipping over due to excessive height when the tile is positioned at the corner of the joint 14, the tile chamfering support frame also includes support feet 5. Two through holes 15 are provided along the length of the profile between the first joint 14a and the second joint 14b, and between the third joint 14c and the fourth joint 14d. The two through holes 15 are located on both sides of the horizontal web 13. The support feet 5 are detachably mounted at the ends of the elongated frame 1, and have a downward-opening C-shaped structure. The two lower end faces of the support feet 5 are flush with the bottom surface of the elongated frame 1 when it is horizontally placed on the ground. Two insert rods 51 are fixed to the upper side of the support feet 5, and these two insert rods 51 are used to insert into the two horizontal through holes 15. Specifically, in this embodiment, the number of support feet 5 is equal to the number at the ends of the elongated frame 1, and each support foot 5 can be independently detached and installed in the through hole 15 at the end of the elongated frame 1.

[0039] The horizontal web 13 divides the inner cavity of the H-section profile into an upper cavity 16 and a lower cavity 17; a through groove is formed on the side wall of the upper cavity 16. The adjusting rod 3 and the support rod 4 are housed in the upper cavity 16 in a folded state. The side wall of the lower cavity 17, opposite to the upper cavity 16 with the through groove, also has a through groove. The lower cavity 17 also has an adjusting rod 3 hinged to it and a support rod 4 installed thereon, with the same structure as the upper cavity 16, and can be folded and housed within the lower cavity 17. Specifically, in this embodiment, the horizontal web 13 divides the inner cavity of the profile into an upper cavity 16 and a lower cavity 17, and the through groove is formed on the right side wall of the upper cavity 16; conversely, the lower cavity 17 has a through groove with the same function on its left side wall. This arrangement maximizes the structural continuity of the side walls of the H-section profile while achieving dual-sided functionality, thus ensuring the overall rigidity and strength of the support frame.

[0040] When needed, construction workers can choose to use either the upward-facing function (right through slot and adjusting rod 3 of the upper cavity 16) or the downward-facing function (left through slot and adjusting rod 3 of the lower cavity 17) based on their operating habits and available space. The two functions do not interfere with each other, and the staggered design of the through slots makes the structure more robust. For example, when using the third or fourth interlocking gap 14c or fourth interlocking gap 14d on both sides of the lower cavity 17 to cut corners on small-sized tiles, and then needing to switch to cutting corners on larger-sized tiles, it is not necessary to flip the long frame 1 back to have the through slot of the upper cavity 16 facing upwards. Instead, the through slot of the lower cavity 17, along with the adjusting rod 3 and support rod 4 of the lower cavity 17, can be used directly as an inclined support surface to support the tiles for corner cutting, avoiding the need to repeatedly flip the long frame 1 and further improving construction efficiency.

[0041] To ensure that the adjusting rod 3 housed in the cavity does not come out on its own during the rotation or movement of the bracket, the ceramic tile chamfering support bracket also includes a locking assembly 6 and a spring 62, wherein a through hole 32 is provided at the end of the adjusting rod 3 away from the hinge end.

[0042] refer to Figure 6 Specifically, the locking assembly 6 includes a hook 61, the upper part of which is a bent hook portion 611 that can be hooked onto the through hole 32 at the end of the adjusting rod 3, and the lower part is a rod body portion 612. A through hole 131 is provided on the horizontal web 13 for the rod body portion 612 of the hook 61 to pass through. A spring 62 is sleeved on the rod body portion 612 located below the horizontal web 13, with the top end of the spring 62 abutting against the bottom surface of the horizontal web 13 and the bottom end of the spring 62 fixedly connected to the end of the rod body portion 612. Under the preload of the spring 62, the bent hook portion 611 is pulled downwards and remains in the hooked state. With this arrangement, when flipping the support frame, there is no need to manually hold the adjusting rod 3; the force of the spring 62 always ensures that the hook 61 is in the locked position, effectively preventing the adjusting rod 3 from slipping out due to gravity or vibration. When it is necessary to unfold the adjusting rod 3, the construction personnel need to pull the hook part 611 of the hook 61 upward to overcome the elastic force of the spring 62, so that the hook part 611 rises and disengages from the through hole 32 of the adjusting rod 3. Then, rotate the hook 61 to make the hook part 611 disengage from the adjusting rod 3, thereby releasing the adjusting rod 3.

[0043] To prevent the tiles from being difficult to remove due to interference fit, at least one shrinkage groove 18 is provided on the outer surface of both side walls of the joint 14 extending along the length of the profile. In addition, to further ensure the overall rigidity and strength of the support frame, reinforcing ribs 132 are symmetrically provided on the upper and lower surfaces of the horizontal web 13 extending along the length of the profile. The horizontal web 13 and the reinforcing ribs 132 form a cross-section profile.

[0044] The method of using this tile chamfering support frame is as follows: First, according to the width of the tile to be processed, move and adjust the distance between the two sets of independent operating units in parallel so that the limiting structure 2 on the unit accurately corresponds to the edge of the tile; then, unfold the angle adjustment rod 3 of each unit and fix it with the support rod 4 to form a stable inclined support surface; finally, embed the side of the tile into the limiting structure 2 and place it stably on the support surface formed by the adjustment rod 3, and then the chamfering corner cutting operation can be carried out.

[0045] To address the challenge of using extremely long but narrow strip-shaped ceramic tiles (T2), this invention provides another solution. In use, two sets of operating units are placed with their long strip frames 1 parallel and aligned to each other along their length, ensuring that the beginning and end ends of the two long strip frames 1 are aligned as much as possible in a straight line. Then, along the axial direction of the long strip frame 1 (i.e.,...) Figure 8The relative distance between the two units is adjusted in the X direction, a process that allows for stepless adjustment. Finally, the long side of the extra-long tile (T2) is smoothly inserted into the continuous extra-long interlocking gap 14 formed by the two coaxially arranged long strip frames 1. Through this coaxial connection, this invention extends the effective support length from the length of a single profile (e.g., 1 meter) to nearly twice the length (e.g., close to 2 meters). In other words, as long as the length of the strip tile (T2) is close to the total length of this "extended" support frame, stable and precise support can be obtained, thus easily completing the corner opening operation.

[0046] For tiles that are short and narrow, the following method can be used for corner cutting. First, select a single independent operating unit; then, directly insert one side of the tile into and secure it to the locking gap 14 on the long strip frame 1 of the operating unit; at this time, with the help of the inclined structure of the two side walls of the locking gap 14, the tile is automatically and stably held in a preset 60° tilt state; finally, the construction worker can directly hold the cutting device to precisely cut the corner of the firmly positioned tile. It should be noted that the blade of the cutting device is equipped with an angle adjustment component to accommodate the requirement of cutting to a 45° angle when the tile is tilted. Additionally, the H-shaped cross-section profile in this embodiment is made of aluminum alloy, which is integrally formed by die extrusion.

[0047] It should be understood that all the above embodiments are exemplary and not restrictive. Various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this utility model should be within the protection scope of this utility model.

Claims

1. A tile corner support bracket, characterized by, The application relates to a ceramic tile chamfer support frame. The application comprises: at least two groups of independently operating units, each group of operating units comprising: a long strip-shaped frame (1); a limiting structure (2) arranged on the long strip-shaped frame (1); an adjusting rod (3) hinged to the long strip-shaped frame (1); wherein the two groups of operating units are arranged in parallel in an adjustable spacing mode, so that the relative distance between the limiting structures (2) can be changed to adapt to ceramic tiles of different sizes; and the adjusting rod (3) forms an inclined supporting surface in an unfolded state and is used for supporting the ceramic tile to perform open-angle cutting.

2. The ceramic tile chamfer support frame according to claim 1, wherein: the operating units are not rigidly connected and the spacing is adjusted by the position on the ground.

3. The ceramic tile chamfer support frame according to claim 2, wherein: the limiting structure (2) is a through groove arranged on the side wall of the long strip-shaped frame (1), and the through grooves of the two groups of operating units are coaxial after the spacing is adjusted.

4. The ceramic tile chamfer support frame according to claim 3, wherein: one end of the adjusting rod (3) is provided with a hinge shaft (31), the hinge shaft (31) is connected with the long strip-shaped frame (1), and the hinge shaft (31) is arranged adjacent to the through groove.

5. The ceramic tile chamfer support frame according to claim 4, further comprising a supporting rod (4), one end of the supporting rod (4) is hinged to the middle section of the adjusting rod (3), and the other end is detachably fixed on the long strip-shaped frame (1).

6. The ceramic tile chamfer support frame according to claim 5, wherein: the long strip-shaped frame (1) is an H-shaped section profile, comprising a first side plate (11), a second side plate (12) and a horizontal web plate (13) connecting the first side plate (11) and the second side plate (12); the two sides of the first side plate (11) and the second side plate (12) respectively extend inward to form a double-layer side wall structure, which comprises a first inner side plate (111) and a second inner side plate (121); a clamping gap (14) extending along the length direction of the profile is formed between the first side plate (11) and the first inner side plate (111) and between the second side plate (12) and the second inner side plate (121); the first side plate (11) and the first inner side plate (111) are mutually parallel inclined surfaces, and the inclined surfaces form an angle of 60 degrees with the horizontal web plate (13); the opening width of the clamping gap (14) is greater than or equal to the thickness of a standard ceramic tile, and the clamping gap (14) is used for embedding the side edge of the ceramic tile and stably maintaining the 60-degree inclined state.

7. The ceramic tile chamfer support frame according to claim 6, wherein: the first side plate (11), the second side plate (12), the first inner side plate (111) and the second inner side plate (121) are all V-shaped sections with the opening facing the side surface, and the V-shaped openings of the first side plate (11) and the second side plate (12) are symmetrically arranged and face each other.

8. The ceramic tile chamfer support frame according to claim 7, wherein: the first side plate (11) and the first inner side plate (111) of the V-shaped section form a first clamping gap (14a) and a second clamping gap (14b). The second side plate (12) of the V-shaped section and the second inner side plate (121) form a third clamping gap (14c) and a fourth clamping gap (14d). 9.The tile corner support frame according to claim 8, characterized in that: Two through holes (15) are provided between the first clamping gap (14a) and the second clamping gap (14b) and between the third clamping gap (14c) and the fourth clamping gap (14d) and extend along the length direction of the profile. 10.The tile corner support frame according to claim 9, characterized in that: Further comprising a support leg (5) which is detachably arranged at the end of the long strip-shaped frame (1) and has a downwardly open C-shaped structure, the two lower end faces of the support leg (5) are flush with the bottom surface of the long strip-shaped frame (1) when the long strip-shaped frame (1) is horizontally placed on the ground, and the upper side of the support leg (5) is fixedly connected with two insertion rods (51) which are arranged in the two horizontal through holes (15). 11.The tile corner support frame according to claim 10, characterized in that: The horizontal web plate (13) divides the inner cavity of the H-shaped section profile into an upper cavity (16) and a lower cavity (17), the through groove is arranged in the side wall of the upper cavity (16), and the adjusting rod (3) and the support rod (4) are accommodated in the upper cavity (16) in the folded state. 12.The tile corner support frame according to claim 11, characterized in that: The side wall of the lower cavity (17) opposite to the side wall of the upper cavity (16) where the through groove is arranged is also provided with a through groove, and the lower cavity (17) is also hingedly connected with an adjusting rod (3) and provided with a support rod (4), and the structure of the adjusting rod (3) and the support rod (4) in the lower cavity (17) is the same as that in the upper cavity (16) and can be folded and accommodated in the lower cavity (17). 13.The tile corner support frame according to claim 12, characterized in that: Further comprising a locking assembly (6) which comprises: a hook (61) whose upper part is a bent hook portion (611) which can be hung on the end of the adjusting rod (3) and whose lower part is a rod body portion (612); a through hole (131) provided on the horizontal web plate (13) and through which the rod body portion (612) of the hook (61) passes; a spring (62) which is sleeved on the rod body portion (612) below the horizontal web plate (13), the top end of the spring (62) abuts against the bottom surface of the horizontal web plate (13), and the bottom end of the spring (62) is fixedly connected with the end of the rod body portion (612).

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