A pre-embedded wire box structure suitable for fair-faced concrete

Abstract

The utility model relates to building construction equipment technical field discloses a kind of embedded wire box structures suitable for fair-faced concrete, comprising: main part, flexible pad piece and tensioning piece;By setting the cooperation of main part, flexible pad piece and tensioning piece, the close adhesion between embedded wire box and curved surface form can be realized. Among them, flexible pad piece is provided with curved cavity, and the side of flexible pad piece deviating from port is deformed by the tensioning effect of tensioning piece, to form close adhesion with curved surface form, to improve the matching degree between embedded wire box and free curved surface form during pouring process, avoid the generation of hollow, crack and other quality defects.In addition, flexible pad piece and main part are connected stably by the sleeve structure of opening and port, effectively prevent concrete slurry from seeping into wire cavity during pouring process, to guarantee the integrity of wire layout space.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically to a pre-embedded junction box structure suitable for fair-faced concrete. Background Technology

[0002] Fair-faced concrete, also known as decorative concrete, is a type of concrete material that requires no post-construction finishing, allowing the concrete surface to serve as the final decorative effect. With its rustic and natural surface texture, clean and powerful lines, and excellent environmental performance, it has been increasingly widely used in various modern building structures, particularly demonstrating unique advantages in embodying the minimalist aesthetics and sustainable development concepts of modern architecture. In recent years, with the deepening of green building concepts, the research and application of fair-faced concrete in the construction field has shown a rapid development trend.

[0003] In the specific construction process of fair-faced concrete, some building structures need to form free-form surfaces to meet specific design or functional requirements. Free-form surfaces are typically characterized by complex spatial shapes and varied curvatures, which places higher technical demands on construction accuracy and the placement of embedded parts. To meet the needs of electrical installation and subsequent maintenance, it is often necessary to reserve and embed back boxes in the free-form surface structure. However, due to the irregular shape of the free-form surface structure, traditional standardized embedded back boxes (such as the common 86-type back box) are difficult to meet actual construction needs in terms of size, shape, and installation position, resulting in poor adaptability, high installation difficulty, inaccurate positioning, and quality problems such as hollow areas and cracks. Utility Model Content

[0004] In view of this, the present invention provides a pre-embedded junction box structure suitable for fair-faced concrete, so as to solve the problem that the pre-embedded junction boxes in the prior art are difficult to fit with free-form surface modules, which leads to quality problems such as concrete cracking and breakage.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] This utility model provides a pre-embedded junction box structure suitable for fair-faced concrete, comprising: a main body, a flexible pad, and a tensioning member; the main body has a cable-receiving cavity, and an opening on the side of the main body facing the curved template; the flexible pad has a curved cavity, and one side of the flexible pad has a port communicating with the curved cavity, the port being adapted to fit with the outer edge of the opening, the side of the flexible pad away from the port being flat and adapted to abut against the curved template; the tensioning member is adapted to connect the main body and the curved template, and after squeezing the flexible pad to deform the side of the flexible pad away from the port, the side of the flexible pad away from the port is tightly fitted with the curved template, and the bottom of the curved cavity is tightly fitted with the outer edge of the opening.

[0007] It has the following advantages:

[0008] An embedded junction box structure suitable for fair-faced concrete achieves a tight fit between the junction box and curved formwork through the coordinated action of a main body, flexible pad, and tensioning components. The flexible pad has a curved cavity, and the tensioning components cause deformation on the side of the flexible pad away from the port, resulting in a tight fit with the curved formwork. This improves the matching degree between the embedded junction box and the free-form formwork during pouring, preventing quality defects such as voids and cracks. Furthermore, a stable connection is established between the flexible pad and the main body through an interlocking structure of openings and ports, effectively preventing concrete slurry from seeping into the cable cavity during pouring, thus ensuring the integrity of the wiring space. The overall structure is easy to install, highly adaptable, and particularly suitable for fair-faced concrete formwork construction sites with complex curved surfaces, demonstrating good engineering application value and promising prospects for widespread adoption.

[0009] According to some embodiments of the present invention, the outer edge of the opening is provided with an extension section, the extension section extends into the curved cavity, the end face of the extension section is a plane, and the end face of the extension section can abut against the bottom of the curved cavity.

[0010] According to some embodiments of the present invention, both the extension segment and the flexible pad are provided in multiples, and the number of the flexible pads is the same as that of the extension segment. An installation notch is provided between two adjacent extension segments, and a limiting boss is provided in the curved cavity. The installation notch and the limiting boss cooperate with each other.

[0011] According to some embodiments of the present invention, the bottom of the curved cavity has a concave structure, a convex structure, a continuous concave-convex structure, or a discontinuous concave-convex structure.

[0012] According to some embodiments of this utility model, the flexible pad is made of silicone or rubber.

[0013] According to some embodiments of the present invention, the cross-sectional area of ​​the side of the flexible pad with the port is smaller than the cross-sectional area of ​​the side of the flexible pad away from the port, and the side of the flexible pad away from the port extends from the inside to the outside, so that the outer surface of the flexible pad has an arc-shaped structure.

[0014] According to some embodiments of the present invention, the side of the main body is provided with a plurality of pipeline fixing holes, and the plurality of pipeline fixing holes are distributed at intervals.

[0015] According to some embodiments of the present invention, the exterior of the two opposite sides of the main body is provided with anti-detachment wing plates.

[0016] According to some embodiments of this utility model, the tensioning member is a fastening bolt. The tensioning member is disposed in the cavity of the cable, with one end fixedly connected to the bottom of the main body and the other end adapted to be fixedly connected to the curved template.

[0017] According to some embodiments of this utility model, one end of the tensioning member is welded to the bottom of the main body member or integrally formed. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of a pre-embedded junction box structure suitable for fair-faced concrete, provided in some embodiments of this utility model;

[0020] Figure 2 This is a structural diagram of the flexible pad provided in some embodiments of the present invention;

[0021] Figure 3 This is a cross-sectional view of the flexible pad provided in some embodiments of the present invention;

[0022] Figure 4 This is a cross-sectional view of another flexible pad provided in some embodiments of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Main body; 11. Opening; 12. Pipeline fixing hole; 13. Anti-detachment wing plate; 2. Flexible pad; 21. Port; 22. Curved cavity; 23. Limiting boss; 3. Tensioner. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] Reference Figure 1 and Figure 2 As shown, this utility model provides a pre-embedded wire box structure suitable for fair-faced concrete, including: a main body 1, a flexible pad 2, and a tensioning member 3; the main body 1 is provided with a wire receiving cavity, and an opening 11 is provided on the side of the main body 1 facing the curved template; the flexible pad 2 is provided with a curved cavity 22, and a port 21 communicating with the curved cavity 22 is provided on one side of the flexible pad 2, the port 21 is adapted to fit with the outer edge of the opening 11, the side of the flexible pad 2 away from the port 21 is flat and adapted to abut against the curved template; the tensioning member 3 is adapted to connect the curved template of the main body 1, and squeezes the flexible pad 2 so that the side of the flexible pad 2 away from the port 21 deforms and the side of the flexible pad 2 away from the port 21 fits tightly against the curved template, and the bottom of the curved cavity 22 fits tightly against the outer edge of the opening 11.

[0030] Specifically, the combination of the main component 1, the flexible pad 2, and the tensioning component 3 enables a tight fit between the embedded junction box and the curved template. The flexible pad 2 has a curved cavity 22, and the tensioning component 3 causes deformation on the side of the flexible pad 2 facing away from the port 21, thus forming a tight fit with the curved template. This improves the matching degree between the embedded junction box and the free-form template during casting, preventing quality defects such as hollow areas and cracks. Furthermore, the flexible pad 2 and the main component 1 are stably connected by an interlocking structure between the opening 11 and the port 21, effectively preventing concrete slurry from seeping into the cable cavity during casting, thereby ensuring the integrity of the wiring space. The overall structure is easy to install, highly adaptable, and particularly suitable for construction sites with complex curved concrete templates, demonstrating good engineering application value and promising prospects for promotion.

[0031] Understandably, by using the flexible pad 2, the edges of the pre-embedded junction box structure are made flexible, avoiding a hard connection between the main body 1 and the template, thus avoiding the problem of grout leakage at the connection and ensuring the pouring effect of the junction box edge.

[0032] In some embodiments of this utility model, the outer edge of the opening 11 is provided with an extension section, which extends into the curved cavity 22. The end face of the extension section is a plane, and the end face of the extension section can abut against the bottom of the curved cavity 22.

[0033] Specifically, the flexible pad 2 can be a washer structure or a pad block structure. When the flexible pad 2 is a washer structure, it can be fitted as a whole onto the outer edge of the opening 11 of the main body 1. When the flexible pad 2 is a pad block structure, it can be selected and installed according to the matching requirements of the curved template. Specifically, an extension section is provided on the outer edge of the opening 11 of the main body 1. The extension section is suitable for extending into the curved cavity 22 to connect with the flexible pad 2. The end face of the extension section is flat. Under the extrusion of the curved template, the end face of the extension section can fit and abut against the bottom of the curved cavity 22, or the end face of the extension section can be extruded against the bottom surface of the curved cavity 22. The side of the flexible pad 2 away from the port 21 deforms towards the curved template to fit tightly with the curved template.

[0034] In some embodiments of this utility model, multiple extension sections and flexible pads 2 are provided, and the number of flexible pads 2 is the same as that of the extension sections. An installation notch is provided between two adjacent extension sections, and a limiting boss 23 is provided in the curved cavity 22. The installation notch and the limiting boss 23 cooperate with each other.

[0035] It is understandable that excessive extrusion pressure causes excessive deformation of the flexible pad 2, resulting in damage to the main body 1. By setting a limiting boss 23 in the curved cavity 22, the limiting boss 23 is engaged with the installation notch to show the installation position of the extension section in the curved cavity 22.

[0036] Reference Figure 3 and Figure 4 As shown, in some embodiments of this utility model, the bottom of the curved cavity 22 has a concave structure, a convex structure, a continuous concave-convex structure, or a discontinuous concave-convex structure.

[0037] Specifically, when the curved template is a convex curved surface, a flexible pad 2 with a concave bottom structure is selected to cooperate with the curved template. When the tensioner 3 is tightened, the convex curved surface of the curved template squeezes the flexible pad 2, thereby causing the side of the flexible pad 2 away from the port 21 to deform towards the concave bottom of the curved cavity 22, so that the side of the flexible pad 2 away from the port 21 is tightly fitted with the convex curved surface of the curved template, and the extension section is fitted with the bottom of the curved cavity 22.

[0038] Similarly, when the curved template is a concave curved surface, a flexible pad 2 with a convex structure at the bottom of the curved cavity 22 is selected to cooperate with the curved template. When the tensioner 3 is tightened, the extension section and the convex part at the bottom are squeezed, so that the side of the flexible pad 2 away from the port 21 is deformed towards the curved template to fill the concave part of the curved template, so that the flexible pad 2 and the curved template fit tightly together.

[0039] In some embodiments of this utility model, the flexible pad 2 is made of silicone or rubber.

[0040] Specifically, silicone or rubber materials have good elasticity, which can meet the deformation requirements of the flexible pad 2, while ensuring sealing performance and avoiding leakage.

[0041] In some embodiments of this utility model, the cross-sectional area of ​​the side of the flexible pad 2 with the port 21 is smaller than the cross-sectional area of ​​the side of the flexible pad 2 away from the port 21. The side of the flexible pad 2 away from the port 21 extends from the inside to the outside, so that the outer surface of the flexible pad 2 has an arc-shaped structure.

[0042] Specifically, by increasing the contact area between the flexible pad 2 and the curved template, the tightness of the fit between the flexible pad 2 and the curved template is ensured; the outer surface of the flexible pad 2 has an arc-shaped structure, thereby increasing the deformation advantage and allowing the flexible pad 2 to fit better with the curved template.

[0043] In some embodiments of this utility model, the side of the main body 1 is provided with a plurality of pipeline fixing holes 12, and the plurality of pipeline fixing holes 12 are arranged at intervals.

[0044] In some embodiments of this utility model, anti-detachment wing plates 13 are provided on the exterior of two opposite sides of the main body 1.

[0045] Specifically, to improve the stability of pipeline installation, the main body 1 has several spaced pipeline fixing holes 12 on multiple sides, which can be used to temporarily fix wires or pipes before pre-embedding. In addition, the two opposite sides of the main body 1 are also provided with anti-detachment wing plates 13, which are used to increase the mechanical interlocking force with the concrete and provide horizontal positioning to prevent the pre-embedded junction box from shifting or floating during concrete vibration.

[0046] In some embodiments of this utility model, the tensioning member 3 is a fastening bolt. The tensioning member 3 is disposed in the cavity of the cable, with one end fixedly connected to the bottom of the main body 1 and the other end adapted to be fixedly connected to the curved template.

[0047] In some embodiments of this utility model, one end of the tensioning member 3 is welded to the bottom of the main body member 1 or integrally formed.

[0048] Specifically, the tensioning component 3 is a metal fastening bolt located within the cavity. One end is fixed to the bottom of the main body 1 by welding or integral molding, while the other end passes through the flexible pad 2 and extends to the outside of the curved template. A reliable connection with the curved template is achieved through the fastening nut or locking plate assembly on the back of the template. During the tensioning process, the side of the flexible pad 2 away from the port 21 undergoes compressive deformation, thus forming a tight fit with the curved template. At the same time, the bottom of the curved cavity 22 also makes tight contact with the end face of the extension section, effectively sealing the gap around the opening 11 and preventing concrete slurry from seeping into the cavity.

[0049] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A pre-embedded junction box structure suitable for fair-faced concrete, characterized in that, include: The main body (1) is provided with a cavity for receiving the wire, and the main body (1) has an opening (11) on the side facing the curved template; The flexible pad (2) is provided with a curved cavity (22). One side of the flexible pad (2) is provided with a port (21) communicating with the curved cavity (22). The port (21) is adapted to fit with the outer edge of the opening (11). The side of the flexible pad (2) away from the port (21) is a plane and is adapted to abut against the curved template. The tensioning member (3) is adapted to connect the curved template of the main body (1). After the flexible pad (2) is squeezed so that the side of the flexible pad (2) away from the port (21) is deformed, the side of the flexible pad (2) away from the port (21) is tightly fitted with the curved template, and the bottom of the curved cavity (22) is tightly fitted with the outer edge of the opening (11).

2. The embedded junction box structure suitable for fair-faced concrete according to claim 1, characterized in that, The outer edge of the opening (11) is provided with an extension section, which extends into the curved cavity (22). The end face of the extension section is a plane, and the end face of the extension section can abut against the bottom of the curved cavity (22).

3. The embedded junction box structure suitable for fair-faced concrete according to claim 2, characterized in that, Both the extension section and the flexible pad (2) are provided in multiples, and the number of the flexible pad (2) is the same as that of the extension section. An installation notch is provided between two adjacent extension sections. A limiting boss (23) is provided in the curved cavity (22). The installation notch and the limiting boss (23) cooperate with each other.

4. The embedded junction box structure suitable for fair-faced concrete according to any one of claims 1-3, characterized in that, The bottom of the curved cavity (22) has a concave structure, a convex structure, a continuous concave-convex structure, or a discontinuous concave-convex structure.

5. The embedded junction box structure suitable for fair-faced concrete according to any one of claims 1-3, characterized in that, The flexible pad (2) is made of silicone or rubber.

6. The embedded junction box structure suitable for fair-faced concrete according to any one of claims 1-3, characterized in that, The cross-sectional area of ​​the side of the flexible pad (2) with the port (21) is smaller than the cross-sectional area of ​​the side of the flexible pad (2) away from the port (21). The side of the flexible pad (2) away from the port (21) extends from the inside to the outside, so that the outer surface of the flexible pad (2) has an arc-shaped structure.

7. The embedded junction box structure suitable for fair-faced concrete according to claim 1, characterized in that, The main body (1) has multiple pipeline fixing holes (12) on its side, and the multiple pipeline fixing holes (12) are arranged at intervals.

8. The embedded junction box structure suitable for fair-faced concrete according to claim 1, characterized in that, The main body (1) has anti-detachment wing plates (13) on the outside of its two opposite sides.

9. The embedded junction box structure suitable for fair-faced concrete according to claim 1, characterized in that, The tensioning member (3) is a fastening bolt. The tensioning member (3) is located in the cavity of the cable. One end is fixedly connected to the bottom of the main body (1), and the other end is adapted to be fixedly connected to the curved template.

10. The embedded junction box structure suitable for fair-faced concrete according to claim 9, characterized in that, One end of the tensioning member (3) is welded to the bottom of the main body member (1) or integrally formed.

Images