Protective device for ceramic tiles
By using a protective device with a guide structure during the installation of ceramic plates, the problems of fastener scratches and shortened lifespan are solved, enabling safe installation and extended service life of various fasteners.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GERMANS BOADA SA
- Filing Date
- 2021-11-04
- Publication Date
- 2026-04-17
AI Technical Summary
During the installation of existing ceramic discs, the surface of the ceramic discs is easily scratched when the fasteners rotate or move, and the lifespan of reusable fasteners is shortened during friction.
Design a protective device with a guide structure suitable for threaded and wedge-shaped fasteners, including radial protrusions and guide rails, to prevent the ceramic disc from being scratched when the fastener rotates or slides, and to extend the service life of the fastener through a low-friction coefficient material.
It effectively prevents fasteners from scratching the ceramic disc, extends the service life and reusability of fasteners, and is suitable for the installation of various fastener types.
Smart Images

Figure CN117355652B_ABST
Abstract
Description
Technical Field
[0001] This invention is applicable to the field of building component manufacturing, and more specifically relates to the installation of ceramic tiles. Background Technology
[0002] Currently, the installation of ceramic tiles, such as ceramic ceramic tiles, usually involves using a leveling device between adjacent ceramic tiles to align them, make them coplanar, and maintain a constant spacing.
[0003] These spacer leveling devices generally include: a base located below the ceramic sheet and extending upwards into a spacer of a certain thickness, the spacer extending into an upper structure on which fasteners act.
[0004] In the installation position, the spacer is located between the opposite edges of adjacent ceramic pieces; the thickness of the spacer determines the spacing between the ceramic pieces; at the same time, the structure protrudes above the ceramic piece to interact with the fastener, pressing the upper surface of the ceramic piece against the base, thereby leveling its upper surface.
[0005] In known types of spacer leveling devices, the upper structure consists of a threaded rod and a threaded bell-shaped fastener. When installed on the rod, the lower end of the fastener presses against the ceramic plate, thereby achieving leveling.
[0006] These devices have a problem: when the fastener rotates, it scratches the upper surface of the ceramic sheet.
[0007] The solution to this problem includes providing a disc-shaped protective device between the upper surface of the ceramic sheet and the fastener, which has a groove for receiving the rod and spacer of the spacing leveling device. However, when the fastener applies high pressure to the upper surface of the protective device, the protective device may rotate together with the fastener, thus posing a risk that the protective device itself may damage the ceramic sheet.
[0008] In another known type of leveling device, the protruding structure above the ceramic sheet consists of a plate with a window, and wedge-shaped fasteners are gradually inserted into the window from the front, thereby applying pressure to the upper surface of the ceramic sheet to level it.
[0009] In this situation, the fastener will not rotate as before, but will move along its length on the tile surface, which can also cause scratches or damage. To avoid such scratches, the current solution is to place a strip of material in the fastener's action area as a protective device, which is independent of the protective device used in the aforementioned threaded drive leveling device.
[0010] Another drawback is that reusable fasteners deteriorate due to friction with the surface of the ceramic sheet or the protective device of the ceramic sheet during displacement under progressive clamping force, reducing the service life and number of times the fastener can be reused.
[0011] Therefore, a protective device for ceramic plates is needed that can be used interchangeably with threaded or wedge-shaped leveling devices, is easy to hold, prevents unnecessary rotation when used with threaded leveling devices, and can extend the service life and number of reuses of the fasteners. Summary of the Invention
[0012] The protective device for ceramic sheets of the present invention has features suitable for solving the proposed technical problem and allows it to be used interchangeably with a leveling device provided with threaded fasteners or wedge fasteners.
[0013] The protective device includes a lower support surface, an upper surface, and a side surface located on the ceramic sheet to be installed. The side surface has at least a pair of radially opposite protrusions, providing a suitable surface for holding the device and preventing rotation when the protective device is fastened to the ceramic sheet using threaded fasteners.
[0014] The upper surface of the protective device includes at least two first attachments protruding into the upper region and arranged in a circular pattern, which define a first circular track for proper guidance to guide the first threaded fastener of the rotatable first spacer leveling device; and at least two radially opposite lateral openings.
[0015] The upper surface also includes at least two second attachments that project into the upper region, are arranged parallel to and define a second radial track aligned with the lateral opening, to provide reasonable guidance to a second fastener of a second spaced leveling device that acts as a wedge and is movable along its length.
[0016] Preferably, the main body of the protective device has a disc-shaped circular outline, and the aforementioned radially opposite protrusions protrude laterally from it.
[0017] According to the present invention, the protective device includes a first groove located in its central region and parallel to the second track, for mounting on a first spacer leveling device driven by a threaded fastener, and a second groove perpendicular to the first groove, for mounting on a second spacer leveling device driven by a wedge fastener. Attached Figure Description
[0018] To aid in the description and to facilitate a better understanding of the features of the invention, this specification is accompanied by a set of drawings, in which the following are illustrated for illustrative and non-limiting purposes:
[0019] Figure 1 A perspective view of a protective device for ceramic sheets according to one embodiment of the present invention is shown;
[0020] Figure 2 and Figure 3 They are shown respectively Figure 1 Top and side views of the ceramic disc protection device;
[0021] Figure 4 and Figure 5 The above figures show a top view and a front view of the protective device for ceramic sheets, together with the leveling device for the first spacer provided with the first threaded fastener, when in the use position.
[0022] Figure 6 and Figure 7 The accompanying drawings show a top view and a side view of the protective device, together with the second spacer leveling device equipped with the second wedge fastener, when in the use position. Detailed Implementation
[0023] In the embodiment shown in the attached figure, the protective device (10) for the ceramic sheet includes a flat lower support surface (101), an upper surface (102), and a generally circular side surface (103). The upper surface (102) is provided with a first attachment (105) and a second attachment (108) protruding upwards. In this case, two pairs of radially opposite and mutually perpendicular protrusions (104) are provided, which can significantly reduce the force required for tightening operations.
[0024] The first accessory (105) defines a first circular track (106) and two radially opposite lateral openings (107) in shape.
[0025] The second attachment (108) defines a second track (109) in the length direction, and the second track (109) is aligned radially with the lateral opening (107) defined by the first attachment (105).
[0026] As described below, the protective device (10) has a first groove (110) parallel to the second track (109) in its central region for installation on the first interval leveling device (20) and a second groove (111) perpendicular to the first groove for installation on the second interval leveling device (30).
[0027] The protective device (10) is also provided with a through hole (112) to reduce the weight of the protective device (10) and the materials required for its manufacture, especially considering that the first accessory (105) and the second accessory (108) also serve as reinforcing elements of the protective device.
[0028] Such as 4 and Figure 5 As shown, the protective device (10) in the use position is located between two ceramic pieces (40, 41) and is spaced and leveled by the first spacing leveling device (20), which includes: a base (201) located below the ceramic pieces (40, 41), a spacer (202) located between the opposite ends of the ceramic pieces to determine their spacing, and a structure (203) in which a first fastener (204) is installed by a screw, the first fastener having a threaded bell-shaped part that applies pressure to the first track (106) of the protective device (10) located between the upper surface of the ceramic pieces (40, 41) and the first fastener (204).
[0029] The protective device (10) prevents the first fastener (204) from directly contacting the upper surface of the ceramic pieces (40, 41), causing scratches or damage. Additionally, in this case, a pair of radially opposing protrusions (104) allow for a comfortable grip on the protective device (10), preventing it from being dragged and rotated by the first fastener (204), and preventing the protective device (10) itself from damaging the surface of the ceramic pieces (40, 41).
[0030] from Figure 6 and Figure 7 As can be seen, the characteristics of the protective device (10) also allow it to be used with a second spacing leveling device (30), which can be operated by a second fastener (305) having a wedge that moves along the length of the second track (109) of the protective device (10); the protective device (10) prevents the second fastener (305) from directly contacting the upper surface of the ceramic plates (40, 41).
[0031] In this case, as in the first case, the second leveling device (30) includes: a base (301) located below the ceramic pieces (40, 41), a spacer (302) disposed between the opposite ends of the ceramic pieces (40, 41), and a structure (303) protruding above the ceramic pieces, which is provided with a plate having a window (304). In this case, when the device moves along the length direction of the second track (109) of the protective device (10), the second wedge fastener (305) gradually enters the window (304), and the second fastener (305) presses the protective device (10) against the upper surface of the ceramic pieces (40, 41) to achieve its leveling.
[0032] from Figure 1 and Figure 2As can be seen more clearly, the first track (106) and the second track (109) include polished regions (106a, 109a) with a low coefficient of friction.
[0033] These polished areas (106a, 109a) respectively constitute the support and sliding surfaces of the fasteners (204, 305) of the first and second interval leveling devices (20, 30), and when the fasteners are replaced on the protective device (10), wear caused by friction can be reduced, extending the service life of the fasteners (204, 305) and the number of times they can be reused.
[0034] It is hereby declared that, having fully described the nature of the invention and its preferred embodiments, modifications may be made to the material, shape, size, and arrangement of the described elements for related purposes, provided that the essential features claimed by the invention are not altered.
Claims
1. A protective device for ceramic sheets, suitable for placement on the upper surface of at least two ceramic sheets (40, 41) and forming a support surface for fasteners (204, 305) for a ceramic sheet spacing and leveling device (20, 30), comprising a base (201, 301), spacers (202, 302) for the ceramic sheets (40, 41), and structures (203, 303) on which the fasteners (204, 305) act; characterized in that The protection device (10) includes: The lower support surface (101) is located on the ceramic plates (40, 41) to be installed. The upper surface (102) includes: At least two first attachments (105), arranged in a circle and protruding upwards, define a first track (106) for guiding a first threaded fastener (204) of a rotatable first spacing leveling device (20); and at least two radially opposite lateral openings (107). At least two second attachments (108) protrude upwards into the upper region, are arranged parallel to each other, and define second tracks (109) aligned with the lateral opening (107), forming a guideable surface that allows the second fastener (305), which serves as a wedge-shaped second spacing leveling device (30), to move along its length; and The side surface (103) is provided with at least a pair of radially opposing protrusions (104) for holding the protective device (10) during the thread tightening of the first spacing leveling device (20).
2. The protection device of claim 1, wherein It has a circular outline in the shape of a disc.
3. The protection device according to any one of claims 1 or 2, characterized in that: The central region includes a first groove (110) and a second groove (111), the first groove being parallel to the second track (109) and suitable for installation on the first interval leveling device (20); the second groove being perpendicular to the first groove (110) and suitable for installation on the second interval leveling device (30).
4. A protection device as claimed in any one of claims 1 or 2, characterised in that: The first track (106) and the second track (109) are provided with polished areas (106a, 109a) with a low coefficient of friction, which respectively form the support and sliding surfaces of the first and second fasteners (204, 305).
5. The protection device according to any one of claims 1 or 2, characterized in that: The side surface (103) includes two pairs of radially opposite and perpendicular protrusions (104).
Citation Information
Patent Citations
Semiconductor ceramic protection device and using method thereof
CN111874717A
Leveling spacer for laying tiles, floor tiles and the like with the interposition of gaps
US20150354231A1