Decorative bare concrete screw plug

Abstract

The utility model discloses a decorative fair-faced concrete screw plug which is assembled on a screw on decorative fair-faced concrete. Comprising a circular truncated cone body and a cylinder, the circular truncated cone body is connected with a sleeve assembled outside the screw rod, the bottom surface of the cylinder is in contact with bare concrete, and the circular truncated cone body and the cylinder are both provided with mounting holes used for being arranged on the screw rod in a sleeving manner; the plug is firmly installed on the screw rod, so that potential safety hazards caused by loosening or falling off of the screw rod to a concrete structure can be prevented; due to the design of the screw plug, holes formed in the surface of the fair-faced concrete due to installation of the screw can be remarkably improved, and the overall appearance is neater and more attractive; the plug is tightly attached to the surface of concrete, water, dust or other pollutants can be prevented from entering the screw hole, and therefore the concrete is protected against erosion and damage.

Description

Technical Field

[0001] The utility model relates to the technical field of construction tools, in particular to a decorative plain concrete screw plug. Background Art

[0002] Decorative bare concrete utilizes the rubbing properties of concrete to create decorative patterns on its surface. The placement of screw holes, a key element of the surface, significantly impacts the overall finish of the concrete. Furthermore, the placement of these holes must meet the requirements of formwork reinforcement, particularly for the construction of artistically textured bare concrete. Currently, the screws commonly used in bare concrete construction often require the use of matching pipes, resulting in cumbersome construction and demolding procedures. The subsequent sealing of the screw holes is labor-intensive and can easily lead to water seepage.

[0003] In the "A construction screw hole sealing head and a method for sealing a screw hole thereof" disclosed in publication number CN110820962A, it includes a plug body; a plug handle is provided at one end of the plug body, and a group of ring wings are provided on the plug handle; the plug body, the plug handle and the ring wings are an integrated structure; the plug body, the plug handle and the ring wings are all made of rubber parts that expand when exposed to water, which can easily block the screw hole and greatly reduce the risk of water leakage; but this device cannot be used for decorative plain concrete, and problems such as honeycomb, rough surface, deformation and uneven wall surface are very likely to occur at the holes of decorative plain concrete. Summary of the Invention

[0004] In order to overcome the defects in the above-mentioned prior art, a screw plug is provided which has high efficiency, can ensure the forming effect of plain concrete, and is better suitable for plain concrete construction.

[0005] The technical solution of the utility model is as follows: a decorative plain concrete screw plug is assembled on a screw on the decorative plain concrete; it includes a frustum and a cylinder connected to each other; the frustum is connected to a sleeve assembled outside the screw, the bottom surface of the cylinder is in contact with the plain concrete, and both the frustum and the cylinder are provided with mounting holes for being sleeved on the screw; by firmly mounting the plug on the screw, the screw can be prevented from loosening or falling off, which may cause potential safety hazards to the concrete structure; the bottom surface of the cylinder in the screw plug is in contact with the plain concrete, which can prevent moisture, dust or other pollutants from entering the screw hole, thereby protecting the concrete from erosion and damage.

[0006] As a preference, a countersunk hole is provided in the top of the truncated cone, and the diameter of the countersunk hole matches the outer diameter of the sleeve. Due to the precise fit between the countersunk hole and the sleeve, the assembly process can be smoother and more efficient.

[0007] Preferably, the countersunk hole is connected to the mounting hole, and the diameter of the countersunk hole is larger than the diameter of the mounting hole, so as to ensure that the sleeve can be smoothly installed and hidden in the countersunk hole.

[0008] Preferably, the height of the frustum is greater than that of the cylinder.

[0009] Preferably, the height of the cylinder is no less than the thickness of the panel mounted on the decorative exposed concrete. This sufficient height facilitates maintenance and replacement of the decorative panel, reducing maintenance effort and costs. When the height of the cylinder is balanced with the thickness of the decorative panel, a more harmonious and aesthetically pleasing visual effect is created. This design enhances the overall aesthetics and quality of the building.

[0010] Preferably, the top radius of the truncated cone is smaller than the bottom radius of the truncated cone. Since the bottom radius of the truncated cone is larger, the weight and pressure from the upper structure can be more effectively dispersed, stress concentration can be reduced, and the stability of the overall structure can be improved.

[0011] Preferably, the inner diameter of the mounting hole matches the outer diameter of the screw; since the inner diameter and the outer diameter match, the screw does not require excessive adjustment and correction during installation and can be quickly and accurately inserted into the mounting hole, saving installation time and labor costs; for some installation environments with limited space or difficult operation, matching inner and outer diameters can reduce the difficulty and risk of installation.

[0012] Preferably, a groove is provided at the bottom of the cylinder. The groove serves as a filling space for sealing material. Sealant or a sealing gasket is used to fill the groove, thereby improving the sealing performance between the plug and the exposed concrete. This increases the contact area between the cylinder and the exposed concrete, thereby enhancing grip and preventing the cylinder from sliding or tipping over during use.

[0013] Preferably, a plurality of grooves are provided, equidistantly arranged around the bottom of the cylinder. The equidistant arrangement ensures that the grooves are evenly distributed around the bottom of the cylinder, so that the cylinder can be evenly stressed when subjected to external forces, thereby reducing stress concentration and improving the durability of the structure.

[0014] Preferably, the frustum and the cylinder are an integrally formed structure; the frustum and the cylinder are connected by integral molding, which avoids the joint problems that may be caused by traditional connection methods, thereby enhancing the stability and strength of the overall structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A decorative exposed concrete screw plug features a tightly integrated frustum and sleeve, resulting in high overall strength and minimal installation error. Suitable for the construction of exposed concrete with embossed, artistic textures, it tightly integrates with exposed concrete panels, effectively preventing moisture loss and grout leakage. The frustum allows for easy removal without damaging the hole.

[0017] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the installation structure of the truncated cone and the cylindrical body of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the groove on the cylinder of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation of a decorative plain concrete screw plug according to the present invention;

[0022] The following are the descriptions of the reference numerals:

[0023] Cone body 1, cylinder 2, screw 3, sleeve 4, plain concrete 5, panel 6, mounting hole 11, countersunk hole 12, groove 21. DETAILED DESCRIPTION

[0024] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0025] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0026] like Figures 1 to 3 The figure shows a decorative exposed concrete screw plug, which is assembled on a screw 3 on a decorative exposed concrete 5. It comprises a connected frustum 1 and a cylinder 2. Both the frustum 1 and the cylinder 2 are provided with a mounting hole 11 for fitting over the screw 3. The inner diameter of the mounting hole 11 matches the outer diameter of the screw 3. This matching inner and outer diameters minimizes the gap between the screw 3 and the mounting hole 11, ensuring a tight connection between them. This tight connection helps prevent loosening and slippage, improving the stability and safety of the overall structure.

[0027] The frustum 1 is connected to a sleeve 4 mounted on the outside of the screw 3, while the bottom surface of the cylinder 2 contacts the exposed concrete 5. The frustum 1 and cylinder 2 form an integral structure. This integrated structure allows for smoother stress transfer between the frustum and cylinder, reducing stress concentration and improving the durability of the structure. Furthermore, a screw plug is mounted on the screw 3. After the screw 3 is subsequently removed, it can be installed in the exposed concrete surface left by the installation of the screw 3, making the overall appearance more neat and aesthetically pleasing.

[0028] Furthermore, a countersunk hole 12 is provided within the top of the frustum 1. The diameter of countersunk hole 12 matches the outer diameter of sleeve 4. Countersunk hole 12 communicates with mounting hole 11. Serving as a transitional area between mounting hole 11 and sleeve 4, countersunk hole 12 helps guide sleeve 4 smoothly into mounting hole 11, reducing resistance and difficulty during installation. The larger diameter of countersunk hole 12 than mounting hole 11 allows sleeve 4 to fit within countersunk hole 12 of frustum 1, preventing the infiltration of moisture, dust, and other debris, thereby protecting the durability of the screw and the exposed concrete structure.

[0029] Among them, the height of the frustum 1 is greater than that of the cylinder 2; the frustum serves as the main load-bearing and connecting part, and its larger height increases the contact area with the screw and sleeve, thereby dispersing stress and improving the overall tensile and compressive resistance. The top radius of the frustum 1 is smaller than the bottom radius of the frustum 1; this conical design enables the frustum to produce a certain self-locking effect when subjected to external force, further enhancing the stability of the structure. The height of the cylinder 2 is not less than the thickness of the panel 6 assembled on the plain concrete 5; when installing the screw plug, it is convenient for the operator to install it, and it will not be blocked by the panel 6, and there will be no gaps or protrusions on the entire panel 6. This not only ensures a neat and beautiful appearance, but also avoids problems such as water seepage and dust accumulation caused by gaps.

[0030] Furthermore, the combined design of the frustum 1 and cylinder 2, and their coordinated combination with the panel 6 assembled on the exposed concrete surface, together create a simple yet layered decorative effect. The tapered design of the frustum 1 and the linear design of the cylinder 2 echo each other, making the plug more visually harmonious and unified.

[0031] The bottom of the cylinder 2 is provided with grooves 21. Multiple grooves 21 are provided, equidistantly spaced around the bottom of the cylinder 2. These grooves 21 serve as a filling space for sealing material, which can be filled with sealant or gaskets to further enhance the seal between the plug and the exposed concrete, preventing the infiltration of moisture, dust, and other debris, and protecting the durability of the exposed concrete structure. This increases the contact area and friction between the bottom of the cylinder 2 and the exposed concrete, making the plug more stable and less likely to loosen after installation.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A decorative plain concrete screw plug, assembled on a screw (3) on a decorative plain concrete (5); characterized by: The invention comprises a connected truncated cone (1) and a cylindrical body (2); the truncated cone (1) is connected to a sleeve (4) assembled on the outside of a screw rod (3); the bottom surface of the cylindrical body (2) is in contact with decorative plain concrete (5); and both the truncated cone (1) and the cylindrical body (2) are provided with a mounting hole (11) for being sleeved on the screw rod (3).

2. A decorative plain concrete screw plug according to claim 1, characterized in that: A countersunk hole (12) is provided in the top end of the truncated cone (1), and the diameter of the countersunk hole (12) matches the outer diameter of the sleeve (4).

3. A decorative plain concrete screw plug according to claim 2, characterized in that: The countersunk hole (12) is connected to the mounting hole (11), and the diameter of the countersunk hole (12) is larger than the diameter of the mounting hole (11).

4. The decorative plain concrete screw plug according to claim 1, characterized in that: The height of the frustum (1) is greater than the height of the cylinder (2).

5. The decorative plain concrete screw plug according to claim 1, characterized in that: The height of the cylinder (2) is not less than the thickness of the panel (6) assembled on the decorative plain concrete (5).

6. The decorative plain concrete screw plug according to claim 1, characterized in that: The top radius of the frustum (1) is smaller than the bottom radius of the frustum (1).

7. The decorative plain concrete screw plug according to claim 1, characterized in that: The inner diameter of the mounting hole (11) matches the outer diameter of the screw (3).

8. The decorative plain concrete screw plug according to claim 1, characterized in that: A groove (21) is provided at the bottom of the cylinder (2).

9. The decorative plain concrete screw plug according to claim 8, characterized in that: There are a plurality of grooves (21) arranged equidistantly in the circumferential direction at the bottom of the cylinder (2).

10. The decorative plain concrete screw plug according to claim 1, characterized in that: The frustum (1) and the cylinder (2) are an integrally formed structure.

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