Water-blocking and air-exhausting caulking combination strip for new floor tile joints
By combining the breathable caulking strip, barrier cover strip, and central square cover of the water-blocking and venting caulking combination strip, the construction obstacles of brick joint caulking and the drying period of the ash sand layer are solved, achieving construction continuity and waterproof and pollution-proof effects on brick joints.
Patent Information
- Application Number
- CN202520309126.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-25
AI Technical Summary
After the floor tiles are laid, the mortar remaining in the tile joints solidifies into sand blocks, making the grout sealing process difficult. The mortar layer takes a long time to dry, and moisture and pollutants can easily enter the tile joints during the construction process, affecting the construction progress and quality.
The system employs a combination of water-blocking and air-venting caulking strips, including a breathable caulking strip, a barrier cover strip, and a central square cover. The breathable caulking strip is embedded in the brick joint, the barrier cover strip is inserted into the upper part of the breathable caulking strip, and the central square cover is embedded in the four corners of the brick joint, thus achieving both air permeability and water blocking.
It effectively removes sand from brick joints, prevents contaminants from entering, allows moisture in the ash layer to dry naturally, avoids construction stagnation, and ensures construction progress and quality.
Smart Images

Figure CN223937540U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of interior decoration, and in particular to a water-blocking and air-venting caulking strip for newly laid floor tile joints. Background Technology
[0002] Nowadays, laying floor tiles and applying grout sealant to the tile joints is a very common interior decoration process. However, there are a few prerequisites for applying grout sealant to tiles:
[0003] 1. After the tiles are laid, the mortar remaining in the tile joints needs to be cleaned in time to prevent the mortar from hardening and forming sand blocks that will make it difficult to clean during the later grouting process.
[0004] 2. The moisture in the mortar layer under the newly laid wall and floor tiles needs to be dried naturally through the tile joints, which takes about 10 days.
[0005] 3. During the natural drying process of the mortar layer, dust and adhesive materials from subsequent renovations can easily scatter onto the tiles and seep into the grout lines, making cleaning more difficult during the later grout sealing process. This is especially true in kitchen and bathroom areas, where workers are often collecting water for construction. Carelessly left-behind water can cause the mortar layer to remain wet, preventing it from drying completely. After the grout sealing is completed, the moisture from the heat will expand, causing the grout to loosen and detach from the tile joints.
[0006] Therefore, industry professionals generally recommend cleaning the grout lines promptly after tiling and then pausing interior work for 10 days until the grout sealing is completed. This results in a 10-day delay in progress on the tiling area, extending the overall project timeline. Without paving the way, grout contamination and water seepage into the mortar layer are unavoidable. Utility Model Content
[0007] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a water-blocking and air-venting grouting combination strip for newly laid floor tiles. It can not only remove the sand block grout from the floor tiles, but also block some of the falling water and pollutants from entering the tile joints. Furthermore, it can allow the moisture in the mortar layer under the floor tiles to dry naturally through the tile joints. This solves the problems of traditional tile joint grouting, where the grouting and mortar layer drying period cannot be properly carried out, and the tile joints are easily contaminated and water can easily enter.
[0008] To achieve the above objectives, this utility model provides a water-blocking and air-venting caulking strip for newly laid floor tiles, comprising: a breathable caulking strip, embedded in the long tile joint between floor tiles, consisting of a caulking head, two water-repellent wings on both sides of the caulking head, and a central slot above the caulking head, wherein the caulking head has a through-ventilation hole; a barrier cover strip, inserted into the central slot above the breathable caulking strip and of the same length, consisting of a water-repellent cover plate and an insert below the water-repellent cover plate, wherein the insert is inserted into the central slot; and a central square cover, embedded in the cross-shaped tile joint formed at the four corners of the floor tiles, consisting of a conical top, a square cover body below the conical top, and a cross-shaped insert below the square cover body.
[0009] Preferably, the thickness of the hydrophobic wing decreases as it moves further away from the caulking head, and after the hydrophobic wing is installed, its edge is in pressure contact with the surface of the floor tile below.
[0010] Furthermore, the through-holes are spaced 3mm apart and are equidistantly arranged along the entire length of the breathable caulking strip.
[0011] Preferably, the cross-sectional shape of the center seam slot is an inverted trapezoid and is located at the central axis of the breathable seam strip.
[0012] Preferably, the thickness of the insert is the same as the width of the center seam slot, and the inserts are evenly distributed along the central axis of the entire length of the barrier cover strip; the spacing between the inserts is 4-6 times the spacing between the through-holes of the breathable seal strip.
[0013] Furthermore, the conical top is a square pyramid with a square base, and the planar shape of the square cover is square and has the same size as the square base of the conical top.
[0014] Furthermore, the cross-shaped insert coincides with the cross-shaped central axis of the square beneath the square cover.
[0015] Compared with the prior art, the water-blocking and air-venting caulking strip of this utility model for newly laid floor tile joints has at least the following beneficial effects:
[0016] 1. This utility model involves aligning the pre-cut breathable caulking strip's caulking head with the matching length of the tile joint, inserting the caulking head into the tile joint, and ensuring the lower part of the breathable caulking strip's hydrophobic fins is in close contact with the tile surface. After the breathable caulking strip is installed, the insert of the barrier cover strip is aligned with the central slot of the breathable caulking strip and pressed into place. After the barrier cover strip is installed, the cross-shaped insert of the central square cover is aligned with the "+" shaped tile joint and pressed into place. This utility model solves the problems of traditional grouting methods, such as the difficulty in properly advancing the caulking process during the drying period of the mortar layer, which can easily lead to grout contamination and water ingress.
[0017] 2. The water-blocking and air-venting caulking strip of this utility model can not only remove the sand block caulking of floor tiles, but also block some of the falling water and pollutants from entering the tile joints, without hindering the water vapor in the ash layer under the floor tiles from drying naturally through the tile joints. Attached Figure Description
[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of the water-blocking and air-venting caulking strip for newly laid floor tiles according to this utility model.
[0020] Figure 2 This is an exploded view of the water-blocking and air-venting caulking strip for newly laid floor tiles according to this utility model.
[0021] Figure 3 This is a field installation diagram of the water-blocking and air-venting caulking strip for newly laid floor tiles according to this utility model;
[0022] Figure 4 This is one of the structural schematic diagrams of the breathable caulking strip of this utility model;
[0023] Figure 5 This is the second structural schematic diagram of the breathable sealing strip of this utility model;
[0024] Figure 6 This is one of the structural schematic diagrams of the barrier cover strip of this utility model;
[0025] Figure 7 This is the second schematic diagram of the barrier cover strip of this utility model;
[0026] Figure 8 This is one of the structural schematic diagrams of the central square cover of this utility model;
[0027] Figure 9 This is the second schematic diagram of the central square cover of this utility model;
[0028] Figure 10 This is an installation diagram of the water-blocking and air-venting caulking strip for newly laid floor tiles according to this utility model.
[0029] Figure 11 This is a schematic diagram of the installation of the central square cover of this utility model;
[0030] Figure 12This is a schematic diagram of the water vapor emission of the water-blocking and air-venting caulking strip for newly laid floor tiles according to this utility model;
[0031] Figure 13 This is a schematic diagram of the water-blocking and water-venting caulking combination strip for newly laid floor tiles according to this utility model.
[0032] Figure 14 This is a schematic diagram showing the completed installation of the water-blocking and air-venting caulking strip for newly laid floor tiles according to this utility model.
[0033] Figure 15 This is a cross-sectional view of the water-blocking and air-venting caulking strip of this utility model applied to the junction of wall tiles and floor tiles.
[0034] Explanation of reference numerals in the attached figures:
[0035] 1-Breathable seam tape; 101-Hydrophobic wing; 1011-Wing edge; 102-Seam tape head; 1021-Through-ventilation hole; 103-Center seam slot;
[0036] 2-Barrier cover strip; 201-Drainage cover plate; 202-Insertion plate;
[0037] 3-Central square cover; 301-Conical top; 302-Square cover body; 303-Cross-shaped insert;
[0038] 4-Floor tiles;
[0039] 5-Wall bricks. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0041] See below. Figures 1 to 15 This invention provides a detailed description of the water-blocking and air-venting caulking strip for newly laid floor tiles.
[0042] This utility model discloses a water-blocking and ventilating joint sealing strip for newly laid floor tiles, comprising a breathable joint sealing strip 1, a barrier cover strip 2, and a central square cover 3. The breathable joint sealing strip 1 is embedded in the long strip joint between the floor tiles, the barrier cover strip 2 is inserted into the central joint slot 103 at the upper part of the breathable joint sealing strip 1 and is the same length as it, and the central square cover 3 is embedded in the cross-shaped joint formed by the four corners of the floor tiles.
[0043] like Figure 4 , Figure 5 As shown, the breathable joint sealant strip 1 is a strip-shaped hard rubber product with a completely uniform cross-sectional shape, consisting of two hydrophobic wings 101, a sealant head 102, and a center joint slot 103. The two hydrophobic wings 101 are located on both sides of the sealant head 102, and the length of the hydrophobic wings 101 is approximately 8mm-10mm. The thickness of the hydrophobic wings 101 decreases as they move away from the sealant head 102, with a thickness of approximately 4mm-5mm near the central axis of the breathable joint sealant strip 1, and approximately 1mm-1.5mm at the wing edges 1011. After the hydrophobic wings 101 are installed, their wing edges 1011 make pressure contact with the surface of the underlying floor tiles 4, thus providing a certain degree of water resistance. The cross-sectional shape of the caulking head 102 is similar to that of a ballpoint pen tip, with a width of approximately 1mm at the tip, approximately 3mm at the tail, and a height of approximately 5mm-7mm. The caulking head 102 has through-holes 1021 with a diameter of approximately 1mm, spaced 3mm apart and evenly spaced along the entire length of the breathable caulking strip 1. The center seam slot 103 has an inverted trapezoidal cross-section and is located above the caulking head 102. The height of the inverted trapezoid is approximately 6mm-7mm, and it is located at the central axis of the breathable caulking strip 1.
[0044] like Figure 6 , Figure 7 As shown, the barrier cover strip 2 is a strip-shaped rigid plastic product with a completely uniform cross-sectional shape. In cross-section, it consists of a hydrophobic cover 201 and inserts 202. The cross-section of the hydrophobic cover 201 resembles a flattened "V" shape, with each of its left and right wings approximately 5mm-8mm in length. The insert 202 is a rectangular rigid sheet structure located below the hydrophobic cover 201. The insert 202 is approximately 6mm-7mm long, 4mm-5mm wide, and 6mm-7mm high, with a thickness consistent with the width of the center slot 103. The inserts 202 are evenly spaced along the entire central axis of the barrier cover strip 2. The spacing between the inserts 202 is 4-6 times the spacing of the through-holes 1021 of the ventilated caulking strip 1, ensuring that the through-holes 1021 have more ventilation space.
[0045] like Figure 8 , Figure 9 As shown, the central square cover 3 is a rigid plastic product, composed of a conical top 301, a square cover body 302, and a cross-shaped insert 303. The conical top 301 is a square pyramid with a square base. The square cover body 302 is a block located below the conical top 301, and its planar shape is square, with dimensions consistent with the square base of the conical top 301. The cross-shaped insert 303 coincides with the cross-shaped central axis of the square below the square cover body 302. The cross-shaped insert 303 has a groove width of approximately 1 mm at the head, a tail width of approximately 3 mm, and a height of approximately 5 mm-7 mm.
[0046] Below, refer to Figures 10 to 15Based on the above description of structural features, the specific application of the water-blocking and venting caulking combination strip of this utility model is described below:
[0047] like Figure 10 and Figure 11 As shown, during the process of laying the floor tiles 4 in the kitchen and bathroom areas, the tiler must ensure that the grout lines between all floor tiles 4 are controlled to be within 3mm in width. After the floor tiles 4 are laid, the tiler cleans the surface of the floor tiles 4 and then immediately begins to install the water-blocking and air-venting grouting strip combination.
[0048] First, the workers cut the breathable grout strips 1 to be installed according to the length and width of the floor tile 4. The cut lengths are divided into two categories: the length of the long breathable grout strip 1 = the long side dimension of the floor tile 4 - the side length of the central square cover 3; the length of the short breathable grout strip 1 = the short side dimension of the floor tile 4 - the side length of the central square cover 3. At the same time, the length of the barrier cover strip 2 is also cut to match the lengths of the long and short breathable grout strips mentioned above. The tile setter first aligns the grout head 102 of the cut breathable grout strip 1 with the matching length of the grout line of the floor tile 4. Then, they press it down, inserting the grout head 102 into the grout line of the floor tile 4 and ensuring that the lower part of the water-repellent wing 101 of the breathable grout strip 1 is in close contact with the surface of the floor tile 4. The grout head 102 then forces any remaining mortar at the grout line of the floor tile 4 to the bottom of the floor tile 4. After the breathable joint sealant strip 1 is installed, immediately align the insert 202 of the barrier cover strip 2 with the center slot 103 of the breathable joint sealant strip 1 and press it in place. After the barrier cover strip 2 is installed, the grout lines at the four corners of the floor tile 4 are still exposed, forming a cross shape in this area. Then, align the cross insert 303 of the central square cover 3 with the cross-shaped grout lines and press it in place. This completes the installation of the water-blocking and air-venting joint sealant combination strip for the entire area of the floor tile 4.
[0049] like Figure 12 and Figure 13 As shown, after the water-blocking and venting caulking strip is installed on the floor tiles 4 in areas such as the kitchen and bathroom, moisture in the mortar layer under the floor tiles 4 can be discharged upwards through the numerous through-holes 1021 in the venting caulking strip 1 installed between the tile joints 4. The gap formed between the water-draining cover plate 201 of the barrier cover plate 2 and the venting caulking strip 1 after installation allows the water vapor discharged upwards through the through-holes 1021 to dissipate outwards through this gap. If construction workers splash construction water onto the tile joints of the floor tiles 4, the water-draining cover plate 201 of the barrier cover plate 2 can block and disperse the falling water to the water-draining wings 101 on both sides of the venting caulking strip 1 until it is discharged onto the surface of the floor tiles 4. The wing edges 1011 on both sides of the venting caulking strip 1 are close to the floor tiles 4, preventing the water discharged onto the surface of the floor tiles 4 from seeping into the tile joints of the floor tiles 4. Over time, the water exposed on the surface of the floor tiles 4 can evaporate naturally. All construction processes can proceed normally without needing to suspend construction due to moisture emanating from the ash layer beneath the floor tiles.
[0050] like Figure 14 and Figure 15 As shown, the water-blocking and venting caulking strip of this utility model is applied to the horizontal gap at the junction of floor tile 4 and wall tile 5. To prevent water from entering this gap, the venting caulking strip 1 can be flipped over, allowing the water-draining wings 101 to be inserted into the horizontal gap at the junction of floor tile 4 and wall tile 5 to achieve the water-blocking effect. After the water-blocking and venting caulking strip has been installed for more than 15 days, that is, after the moisture in the mortar layer has basically dissipated, the venting caulking strip 1, the barrier cover strip 2, and the central square cover 3 of the water-blocking and venting caulking strip can be removed. Finally, the grouting work in areas such as the kitchen and bathroom can then be carried out.
[0051] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any transformations or substitutions that can be understood by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of this utility model.
Claims
1. A water-blocking and air-venting caulking strip for newly laid floor tile joints, characterized in that, include: A breathable joint sealant strip (1) is embedded in the long joint between floor tiles. It consists of a joint sealant head (102), two hydrophobic wings (101) on both sides of the joint sealant head (102), and a central joint slot (103) above the joint sealant head (102). A through-hole (1021) is provided in the joint sealant head (102). A barrier cover strip (2) is inserted into the center seam slot (103) at the upper part of the breathable caulking strip (1) and is the same length as it. It consists of a hydrophobic cover plate (201) and an insert (202) located below the hydrophobic cover plate (201). The insert (202) is inserted into the center seam slot (103). The central square cover (3) is embedded in the cross-shaped brick joint formed by the four corners of the floor tile. It consists of a conical top (301), a square cover body (302) located below the conical top (301), and a cross-shaped insert (303) located below the square cover body (302).
2. The water-blocking and air-venting caulking strip for newly laid floor tile joints according to claim 1, characterized in that, The thickness of the hydrophobic wing (101) decreases as it moves further away from the caulking head (102). After the hydrophobic wing (101) is installed, its edge (1011) is in pressure contact with the surface of the floor tile (4) below.
3. The water-blocking and air-venting caulking strip for newly laid floor tile joints according to claim 1, characterized in that, The through-holes (1021) are spaced 3mm apart and are equidistantly arranged along the entire length of the breathable caulking strip (1).
4. The water-blocking and air-venting caulking strip for newly laid floor tile joints according to claim 1, characterized in that, The cross-sectional shape of the center seam slot (103) is an inverted trapezoid and is located at the central axis of the breathable caulking strip (1).
5. The water-blocking and air-venting caulking strip for newly laid floor tile joints according to claim 1, characterized in that, The thickness of the insert (202) is the same as the width of the center slot (103), and the insert (202) is distributed at equal intervals along the central axis of the entire length of the barrier cover strip (2). The spacing between the inserts (202) is 4-6 times the spacing between the through-holes (1021) of the breathable caulking strip (1).
6. The water-blocking and air-venting caulking strip for newly laid floor tile joints according to claim 1, characterized in that, The conical top (301) is a square pyramid with a square base, and the planar shape of the square cover (302) is square and has the same size as the square base of the conical top (301).
7. The water-blocking and air-venting caulking strip for newly laid floor tile joints according to claim 1, characterized in that, The cross-shaped insert (303) coincides with the cross-shaped central axis of the square under the square cover (302).