Device capable of circularly reserving cast-in-place stair water drip
By using stamped steel slats and floating edge structures, the stair drip line is automatically formed, which solves the problems of cumbersome construction and poor integrity in traditional construction, and achieves efficient and beautiful drip line molding, and reduces material consumption and construction costs.
Patent Information
- Application Number
- CN202421244367.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The construction of traditional stair drip lines is cumbersome, the integrity is poor, and the problems of hollowing and cracking are prone to occur. The finished drip lines consumables increase the construction cost, and the water flow is prone to stay, resulting in a poor visual feeling.
The stamped steel strips and floating edge structure are adopted. The steel strips are fixed with the stair casting formwork through self-tapping screws. The lower end of the floating edge is inclined to form an upward incline, which automatically forms a concave drip line after concrete pouring.
The construction method of one-piece forming is realized, which saves construction processes and speeds up construction progress. The drip line after pouring is good integrity, is not prone to cracking or falling off, has a good structure and is beautiful, and can be recycled and reused, reducing material consumption and reducing construction costs.
Smart Images
Figure CN222686127U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building moulds, in particular to a device capable of cyclically reserving a drip line for cast-in-place stairs. Background Art
[0002] In public and civil buildings, in the stairwell of the concrete structure, on the side of the step tread (near the stairwell), in order to prevent the water on the step tread from flowing along the side of the tread and causing pollution to the bottom of the tread, a drip line is generally set on the bottom of the tread near the side of the tread. The traditional construction method is to use cement mortar to apply the drip line. First, the concrete base is roughened (roughened or thrown with glue), and then a certain proportion of cement mortar or finished cement mortar is applied to form the drip line, and then maintained. The drip line obtained by this method is not only cumbersome to construct, but also has poor integrity and is prone to hollowing, cracking and other risks.
[0003] In modern buildings, the installation technology of drip lines in stairwells of buildings is generally to install finished drip lines later. In the construction of drip lines, the finished drip lines are mostly bonded to the bottom of the stairs by adhesives to form a drip line structure, but it is affected by the adhesion of the adhesive, and the finished drip lines are consumables, which increases the construction cost. In addition, the transmitted drip line structures mostly rely on their own edges to gather water. The water flow is easy to stay at the opening edge of the drip line, forming water drops that are difficult to fall. It will also cause pollution to the edge of the drip line, and the appearance is poor. Therefore, a device that can circulate and reserve cast-in-place stair drip lines is needed. Utility Model Content
[0004] The purpose of the present application is to provide a device that can cyclically reserve a drip line for cast-in-place stairs, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a device for cyclically reserving a drip line for cast-in-place stairs, comprising a steel strip stamped into a ∩ shape, a plurality of bolt holes are opened on the horizontal section of the steel strip, the steel strip is detachably fixed to the stair casting template by self-tapping screws, and when fixed, the convex surface of the steel strip faces upward;
[0006] A floating edge is integrally formed on one side of the lower end of the steel strip, and the lower end of the floating edge is inclined toward the side away from the steel strip, and the surface of one side of the floating edge forms an upward inclined surface inclined toward the edge of the stairs.
[0007] Preferably, the edge portion of the lower end of the floating flange is provided with a plurality of pointed protrusions protruding toward a side away from the steel strip, and the plurality of pointed protrusions are distributed in an array equidistantly along the length direction of the floating flange.
[0008] Preferably, the edge portion of the lower end of the floating edge is further provided with a plurality of round-headed protrusions protruding toward a side away from the steel strip, and the plurality of round-headed protrusions are also distributed in an array equidistantly along the length direction of the floating edge;
[0009] A plurality of round-headed convex blocks and a plurality of pointed-headed convex blocks are alternately distributed in sequence, and an inwardly concave triangular groove is formed between the round-headed convex blocks and the pointed-headed convex blocks.
[0010] Preferably, a vertical edge is formed on one side of the triangular groove close to the steel strip, and a sharp groove is formed on the lower end of the triangular groove close to the steel strip.
[0011] Preferably, a connection groove group is provided at the upper portion of one end of the steel strip, and a connection block that is snap-fitted with the connection groove group is fixed at the other end of the steel strip.
[0012] Preferably, the connecting groove group includes a transverse groove and a vertical groove, the transverse groove extends horizontally and forms an opening at one end of the steel strip, the vertical groove extends vertically and forms an opening at the upper end of the steel strip, and a connecting hook formed integrally with the steel strip is formed between the transverse groove and the vertical groove;
[0013] A hook adapted to the vertical connection groove is integrally formed at the upper end of the connection block, and a plug plate adapted to the horizontal connection groove is integrally formed at the lower end of the connection block, and a groove formed between the hook and the plug plate is adapted to the connection hook.
[0014] Preferably, a rubber strip with a triangular cross section is fixed to the bottom wall of the vertical groove, and a chamfered surface adapted to the rubber strip is provided at the lower end of the hook, and the chamfered surface on the hook is interference fit with the rubber strip.
[0015] In summary, the technical effects and advantages of the utility model are:
[0016] 1. In the utility model, after pouring concrete, the lower edge of the stairs automatically forms a concave drip line by setting the steel strips and the floating edge, which can avoid re-grooving after pouring, or the need to reserve the drip line position for secondary construction. The one-time forming construction method not only saves construction procedures and speeds up the construction progress, but also has good integrity of the drip line after pouring, and is not prone to cracking, falling off, etc., with a good structure and more beautiful appearance; at the same time, after removing the stair casting template, the device can also be disassembled, which is convenient for recycling and reuse of the device. Compared with the prior art of fixing the drip line as a whole in the staircase, material consumption is reduced and construction costs are reduced;
[0017] In addition, the setting of the floating edge makes the lower end of the drip line after pouring close to the edge of the stairs form a sharp corner with a triangular cross-section protruding inward, which is more conducive to gathering the water entering the edge of the drip line, so that the water drips quickly and will not stay on the drip line, further avoiding water infiltration and enhancing the protective effect of the drip line.
[0018] 2. In the utility model, through the arrangement of pointed protrusions and round protrusions, a plurality of continuous triangular grooves are formed on the edge of the floating edge. After casting, a plurality of continuous horizontal cross-sections of the same triangular sharp corners are formed on the inwardly protruding sharp corner portion of the lower end of the drip line with a triangular cross-section, and the inner triangular edges extend vertically, which can not only further accelerate the convergence and dripping of water flow, but also enhance the structural strength of the sharp corner portion to a certain extent, avoid the sharp corner portion from being blunted quickly and losing the function of quickly converging water flow, thereby improving the protection effect of the drip line while protecting the structure of the drip line itself and extending the service life of the drip line. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;
[0021] Figure 2 for Figure 1 A magnified view of the structure at A;
[0022] Figure 3 This is a schematic diagram of the enlarged structure of the connection point when two steel bars are connected in this embodiment.
[0023] In the figure: 1. steel strip; 11. bolt hole; 12. transverse groove; 13. vertical groove; 14. connecting hook; 2. floating edge; 21. round head protrusion; 22. pointed head protrusion; 23. triangular groove; 3. connecting block; 31. hook; 32. plug plate; 4. sealing strip. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Example: Reference Figure 1-3The device shown is a device for reserving drip lines for cast-in-place stairs in a recyclable manner, comprising a steel strip 1 that is stamped into a ∩ shape, a plurality of bolt holes 11 are opened on the horizontal section of the steel strip 1, and the steel strip 1 is detachably fixed to the stair casting template by self-tapping screws, and when fixed, the convex surface of the steel strip 1 faces upward;
[0026] A flange 2 is integrally formed on one side of the lower end of the steel strip 1. The lower end of the flange 2 is inclined toward the side away from the steel strip 1. The surface of one side of the flange 2 forms an upward inclined surface inclined toward the edge of the stairs.
[0027] Based on the above structure, after pouring concrete, the lower edge of the stairs automatically forms a concave drip line (drip groove), which can avoid re-grooving after pouring, or the need to reserve the drip line position for secondary construction. The one-time forming construction method not only saves construction procedures and speeds up the construction progress, but also the drip line after pouring has good integrity, is not prone to cracking, falling off, etc., has a good structure and is more beautiful; at the same time, after removing the stair casting template, the device can also be disassembled, which is convenient for recycling and reuse of the device. Compared with the prior art of fixing the drip line as a whole in the staircase, material consumption is reduced and construction costs are reduced;
[0028] In addition, the setting of the floating edge 2 allows the drip line after pouring to form a sharp corner with a triangular cross-section protruding inward near the lower end of the stair edge, which is more conducive to gathering the water entering the edge of the drip line, so that the water drips quickly and does not stay on the drip line, further avoiding water infiltration and enhancing the protective effect of the drip line.
[0029] Furthermore, the edge portion of the lower end of the floating edge 2 is provided with a plurality of pointed protrusions 22 protruding toward a side away from the steel strip 1, and the plurality of pointed protrusions 22 are distributed in an array equidistantly along the length direction of the floating edge 2;
[0030] The edge portion of the lower end of the floating edge 2 is also provided with a plurality of round-headed protrusions 21 protruding toward a side away from the steel strip 1, and the plurality of round-headed protrusions 21 are also distributed in an array equidistantly along the length direction of the floating edge 2;
[0031] A plurality of round-headed protrusions 21 and a plurality of pointed-headed protrusions 22 are alternately distributed in sequence, and a concave triangular groove 23 is formed between the round-headed protrusions 21 and the pointed-headed protrusions 22;
[0032] A vertical edge is formed on one side of the triangular groove 23 close to the steel strip 1 , and a sharp groove is formed on the lower end of the triangular groove 23 close to the steel strip 1 .
[0033] By setting the pointed protrusion 22 and the round protrusion 21, a plurality of continuous triangular grooves 23 are formed on the edge of the floating edge 2. After casting, a plurality of continuous horizontal cross-sections of the same triangular sharp corners are formed on the inwardly protruding sharp corner with a triangular cross section at the lower end of the drip line, and the inner triangular edges extend vertically, which can not only further accelerate the convergence and dripping of water flow, but also enhance the structural strength of the sharp corner to a certain extent, avoid the sharp corner from being blunted quickly and losing the function of quickly converging water flow, thereby improving the protection effect of the drip line while protecting the structure of the drip line itself and extending the service life of the drip line.
[0034] Furthermore, a connection groove group is provided at the upper part of one end of the steel strip 1, and a connection block 3 engaged with the connection groove group is fixed at the other end of the steel strip 1. The connection groove group includes a transverse groove 12 and a vertical groove 13. The transverse groove 12 extends horizontally and forms an opening at one end of the steel strip 1, and the vertical groove 13 extends vertically and forms an opening at the upper end of the steel strip 1, and a connection hook 14 formed integrally with the steel strip 1 is formed between the transverse groove 12 and the vertical groove 13;
[0035] A hook 31 adapted to the vertical groove 13 is integrally formed at the upper end of the connecting block 3 , and a plug plate 32 adapted to the horizontal groove 12 is integrally formed at the lower end of the connecting block 3 . The groove formed between the hook 31 and the plug plate 32 is adapted to the connecting hook 14 .
[0036] By respectively arranging a connecting groove group and a connecting block 3 at both ends of the steel strip 1, the two steel strips 1 can be easily clamped and fixed, and a special-shaped sealing gap structure is formed after clamping to block the penetration of concrete slurry, so that the inner wall of the drip line after pouring presents a smooth surface, a flat structure and a neat appearance. At the same time, it can prevent condensation between the device and the poured concrete, making it easy to dismantle the device.
[0037] Furthermore, a rubber strip 4 with a triangular cross section is fixed to the bottom wall of the vertical groove 13 , and a chamfered surface adapted to the rubber strip 4 is provided at the lower end of the hook 31 , and the chamfered surface on the hook 31 is interference fit with the rubber strip 4 .
[0038] The use of the rubber strip 4 can further seal the connection seam between the two steel strips 1, making the seal more reliable. At the same time, it can also generate horizontal lateral stress between the two steel strips 1 to avoid lateral relative movement of the two clamped steel strips 1 and ensure the stability of the connection.
[0039] Working principle of the utility model: in daily use, the device is first installed on the stair casting template through the bolt hole 11 by self-tapping screws, so that the convex surface of the steel plate strip 1 faces upward, and then a release agent is coated on the surface of the steel plate strip 1, which is helpful for later disassembly. After the installation is completed, the steel bars can be tied and concrete can be poured. After the concrete is poured, the lower edge of the stairs automatically forms a concave drip line, which can avoid re-grooving after pouring, or the need to reserve the drip line position for secondary construction. The one-time forming construction method not only saves construction procedures and speeds up the construction progress, but also the drip line after pouring has good integrity, is not prone to cracking, falling off, etc., has a good structure and is more beautiful; at the same time, after removing the stair casting template, the device can also be disassembled, which is convenient for recycling and reuse of the device. Compared with the prior art of fixing the drip line as a whole in the stairs, material consumption is reduced and construction costs are reduced;
[0040] In addition, the setting of the floating edge 2 allows the lower end of the drip line after casting to form a sharp corner portion with a triangular cross section protruding inwardly, which is closer to the edge of the stairs, thereby being more conducive to gathering the water entering the edge of the drip line. Through the setting of the pointed protrusion 22 and the round-headed protrusion 21, a plurality of continuous triangular grooves 23 are formed on the edge of the floating edge 2. After casting, a plurality of continuous horizontal cross-sections of the sharp corner portions with triangular cross sections are formed on the sharp corner portion with a triangular cross section protruding inwardly at the lower end of the drip line, and the inner triangular edges extend vertically, which can not only further accelerate the convergence and dripping of water flow, but also enhance the structural strength of the sharp corner portion to a certain extent, thereby avoiding the sharp corner portion from becoming blunt quickly and losing the function of quickly gathering water flow. Therefore, while improving the protection effect of the drip line, the structure of the drip line itself is protected, thereby extending the service life of the drip line.
[0041] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A device for cyclically reserving a drip line for cast-in-place stairs, comprising a steel strip (1) punched into a ∩ shape, characterized in that: A plurality of bolt holes (11) are provided on the horizontal section of the steel strip (1), and the steel strip (1) is detachably fixed to the stair casting formwork by self-tapping screws, and when fixed, the convex surface of the steel strip (1) faces upward; A flange (2) is integrally formed on one side of the lower end of the steel strip (1), the lower end of the flange (2) is inclined toward a side away from the steel strip (1), and a surface of one side of the flange (2) forms an upward inclined surface inclined toward the edge of the staircase.
2. A device for cyclically reserving a drip line for cast-in-place stairs according to claim 1, characterized in that: The edge portion of the lower end of the floating edge (2) is provided with a plurality of pointed protrusions (22) protruding toward a side away from the steel strip (1), and the plurality of pointed protrusions (22) are distributed in an array equidistantly along the length direction of the floating edge (2).
3. The device for cyclically reserving the drip line of cast-in-place stairs according to claim 1 is characterized in that: The edge portion of the lower end of the floating edge (2) is also provided with a plurality of round-headed protrusions (21) protruding toward a side away from the steel strip (1), and the plurality of round-headed protrusions (21) are also distributed in an array in an equidistant manner along the length direction of the floating edge (2); The plurality of round-headed convex blocks (21) and the plurality of pointed-headed convex blocks (22) are distributed alternately in sequence, and an inwardly concave triangular groove (23) is formed between the round-headed convex blocks (21) and the pointed-headed convex blocks (22).
4. The device for cyclically reserving the drip line of cast-in-place stairs according to claim 3 is characterized in that: A vertical edge is formed on one side of the triangular groove (23) close to the steel strip (1), and a sharp groove is formed on the lower end of one side of the triangular groove (23) close to the steel strip (1).
5. The device for cyclically reserving the drip line of cast-in-place stairs according to claim 1 is characterized in that: A connection groove group is provided on the upper part of one end of the steel strip (1), and a connection block (3) that is snap-fitted with the connection groove group is fixed on the other end of the steel strip (1).
6. The device for cyclically reserving drip lines for cast-in-place stairs according to claim 5, characterized in that: The connecting groove group comprises a transverse groove (12) and a vertical groove (13), wherein the transverse groove (12) extends horizontally and forms an opening at one end of the steel strip (1), and the vertical groove (13) extends vertically and forms an opening at the upper end of the steel strip (1), and a connecting hook (14) formed integrally with the steel strip (1) is formed between the transverse groove (12) and the vertical groove (13); The upper end of the connection block (3) is integrally formed with a hook (31) adapted to the vertical connection groove (13), the lower end of the connection block (3) is integrally formed with a plug plate (32) adapted to the horizontal connection groove (12), and the groove formed between the hook (31) and the plug plate (32) is adapted to the connection hook (14).
7. The device for cyclically reserving drip lines for cast-in-place stairs according to claim 6, characterized in that: A rubber strip (4) with a triangular cross section is fixed to the bottom wall of the vertical groove (13), and a chamfered surface adapted to the rubber strip (4) is provided at the lower end of the hook (31), and the chamfered surface on the hook (31) is interference-fitted with the rubber strip (4).