A structural connecting piece for cast-in-situ concrete sandwich insulation wall

Abstract

The utility model relates to a structure connecting piece for cast-in-situ concrete sandwich heat preservation wall body, it includes connecting rod and sets up sleeve on connecting rod, the both ends of connecting rod are provided with first anticorrosive cap and second anticorrosive cap respectively, first anticorrosive cap is screwed in one end of connecting rod, second anticorrosive cap is fixed in the other end of connecting rod, the sleeve is provided with support plate with each other perpendicular, the sleeve is fixed with clamping plate on the side close to second anticorrosive cap, clamping plate and support plate are provided with each other perpendicular, the outer end of clamping plate is provided with U-shaped clamping groove. The structure connecting piece simple structure, convenient installation, by setting up support plate can prevent the shift of thermal insulation layer to structural layer, and clamping plate can be clamped on the structural layer reinforcement through U-shaped clamping groove, thereby control the distance between structural layer reinforcement and thermal insulation board, prevent structural layer reinforcement corrosion in later period.

Description

Technical Field

[0001] This utility model relates to the field of building external insulation technology, specifically to a structural connector for cast-in-place concrete sandwich insulation walls. Background Technology

[0002] The existing cast-in-place concrete sandwich insulated wall consists of a protective layer, an insulation layer composed of insulation boards, and a structural layer. Both the protective layer and the structural layer are cast-in-place reinforced concrete structures. The insulation layer uses existing insulation materials. During construction, it is necessary to ensure that the position of the insulation layer does not deviate into the structural layer, and to ensure that the distance between the reinforcing bars of the structural layer and the insulation board is not less than 1.5cm.

[0003] In current construction processes, during formwork erection, the insulation board tends to shift into the structural layer due to the influence of tie bolts. This results in the actual thickness of the structural layer being less than the design thickness, and a smaller protective layer for the structural reinforcement. This not only affects the stability of the building structure but also causes the structural reinforcement to corrode during later use. Therefore, it is necessary to provide a structural connector to prevent the insulation board from shifting and to control the distance between the structural reinforcement and the insulation board. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a structural connector for cast-in-place concrete sandwich insulated walls that prevents the insulation board from shifting position and can control the distance between the structural layer steel bars and the insulation board.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A structural connector for cast-in-place concrete sandwich insulated walls includes a connecting rod and a sleeve disposed on the connecting rod. A first anti-corrosion cap and a second anti-corrosion cap are respectively disposed at both ends of the connecting rod. The first anti-corrosion cap is threaded to one end of the connecting rod, and the second anti-corrosion cap is fixed to the other end of the connecting rod.

[0007] A support plate is provided perpendicularly to the sleeve, and a clamping plate is fixed on the sleeve near the second anti-corrosion cap. The clamping plate is perpendicular to the support plate, and a U-shaped groove is provided at the outer end of the clamping plate.

[0008] In one embodiment of this utility model, the second anti-corrosion cap is injection molded onto the end of the connecting rod.

[0009] In one embodiment of this utility model, the first anti-corrosion cap is a washer nut and a cap-shaped nut; the end of the connecting rod where the first anti-corrosion cap is located is provided with an external thread.

[0010] In one embodiment of this utility model, the support plate is fan-shaped, circular, or square.

[0011] In one embodiment of this utility model, the support plate is semi-circular, the connecting rod is located in the middle of the straight edge of the support plate, the clamping plate is fixedly connected to the support plate, and the clamping plate and the straight edge of the support plate are arranged perpendicular to each other.

[0012] In one embodiment of this utility model, the sleeve, support plate and clamping plate are integrally injection molded.

[0013] In one embodiment of this utility model, the U-shaped groove is provided with a V-shaped opening; the width of the U-shaped groove is adapted to the diameter of the second steel bar in the structural layer; the second steel bar is horizontally arranged and parallel to the inner and outer sides of the insulation layer.

[0014] In one embodiment of this utility model, the connecting rod is provided with a threaded connecting section, the threaded connecting section and the clamping plate are respectively located on both sides of the support plate, and the threaded connecting section is equipped with a fixing nut.

[0015] In one embodiment of this utility model, the sleeve length of the support plate near the first anti-corrosion cap is the same as the thickness of the insulation layer, and the threaded connection section is connected to the end of the sleeve.

[0016] In one embodiment of this utility model, the total length of the structural connector is equal to the distance between the structural layer template and the protective layer template.

[0017] The beneficial effects of adopting the above technical solution are as follows:

[0018] The structural connector is simple in structure and easy to install. A support plate prevents the insulation layer from shifting towards the structural layer. The clamping plate, via a U-shaped groove, can be secured to the reinforcing steel in the structural layer, thus controlling the distance between the reinforcing steel and the insulation board and preventing corrosion of the structural steel later. The second anti-corrosion cap is injection-molded onto the connecting rod, making it less prone to detachment during transportation and installation. The first anti-corrosion cap uses a washer-nut design to hook the protective layer onto the connecting rod, creating a strong connection between the protective layer, insulation layer, and structural layer. This makes the structure of the protective layer and insulation layer more robust and less prone to detachment during natural disasters such as earthquakes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0021] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0022] Figure 4This is another schematic diagram of the main structure of this utility model.

[0023] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0024] Figure 6 This is a schematic diagram of the usage state of this utility model.

[0025] Figure 7 This is a structural schematic diagram of the structural connector and the reinforcing steel bars in the structural layer of this utility model.

[0026] The components are: 1. Structural layer, 2. Insulation layer, 3. Protective layer, 4. Structural layer formwork, 5. Protective layer formwork, 6. Structural layer reinforcement, 601. First reinforcement, 602. Second reinforcement, 603. Third reinforcement, 7. Connecting rod, 8. Sleeve, 9. Support plate, 10. Clip plate, 11. U-shaped slot, 12. V-shaped opening, 13. First anti-corrosion cap, 14. Second anti-corrosion cap, 15. Threaded connection section, 16. Fixing nut. Detailed Implementation

[0027] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0028] like Figures 1-3 The diagram shows a structural connector for cast-in-place concrete sandwich insulated walls, comprising a metal connecting rod 7 and a sleeve 8 mounted on the connecting rod 7. The connecting rod 7 has a first anti-corrosion cap 13 and a second anti-corrosion cap 14 at each end. The first anti-corrosion cap 13 is threaded to one end of the connecting rod 7, and the second anti-corrosion cap 14 is fixed to the other end of the connecting rod 7. The sleeve 8 is fixedly mounted on the connecting rod 7 with an interference fit, or the sleeve 8 is directly injection molded onto the connecting rod 7.

[0029] A support plate 9 is provided perpendicularly to the sleeve 8. A clamping plate 10 is fixed on the sleeve 8 on the side near the second anti-corrosion cap 14. The clamping plate 10 is provided perpendicularly to the support plate 9. A U-shaped groove 11 is provided at the outer end of the clamping plate 10 (the end away from the axis of the sleeve 8).

[0030] The structural connector is simple in structure and easy to install. The support plate 9 provides support and limits the insulation layer 2. When the insulation layer 2 bends and is about to intrude into the space of the structural layer 1, the structural reinforcement 6 applies a reverse force to the insulation layer 2 through the support plate 9, preventing deformation and displacement of the insulation layer 2 towards the structural layer 1. This ensures that the insulation board in the insulation layer 2 does not shift or deform, maintains the protective layer thickness of the structural reinforcement 6 in the structural layer 1, and prevents corrosion of the structural reinforcement 6 later. The clamping plate 10 can be clamped onto the structural reinforcement 6 through the U-shaped groove 11, thereby controlling the distance between the structural reinforcement and the insulation board. The connecting rod 7 has a second anti-corrosion cap 14 and a first anti-corrosion cap 13 made of non-metallic material, respectively, which contact the structural layer template 4 and the protective layer template 5. These protect the template, block thermal bridges, and increase horizontal pull-out force.

[0031] The second anti-corrosion cap 14 is injection molded onto the end of the connecting rod 7. Because the second anti-corrosion cap 14 is injection molded onto the connecting rod 7, it is less likely to fall off during transportation and installation.

[0032] The first anti-corrosion cap 13 is a washer-type nut; the connecting rod 7 has an external thread at one end where the first anti-corrosion cap 13 is located. The first anti-corrosion cap 13, being a washer-type nut, allows the protective layer 3 to be hooked onto the connecting rod 7, forming a strong connection between the protective layer 3, the insulation layer 2, and the structural layer 1. This makes the structure of the protective layer 3 and the insulation layer 2 more robust and less prone to detachment during natural disasters such as earthquakes.

[0033] The support plate 9 can be fan-shaped, circular, or square. Preferably, the support plate 9 is semi-circular, the connecting rod 7 is located at the middle of the straight edge of the support plate 9, and the clamping plate 10 is fixedly connected to the support plate 9. The straight edges of the clamping plate 10 and the support plate 9 are perpendicular to each other. That is, the clamping plate 10 and the support plate 9 are perpendicular to each other, and the extension line of the intersection of the clamping plate 10 and the support plate 9 passes through the axis of the connecting rod 7.

[0034] As a further optimization, the sleeve 8, support plate 9 and clamping plate 10 are integrally injection molded.

[0035] As a further optimization, the width of the U-shaped groove is adapted to the diameter of the second reinforcing bar 602 in the structural layer reinforcing bar 6; the structural layer reinforcing bar 6 is composed of a first reinforcing bar 601 arranged in the vertical direction, a second reinforcing bar 602 arranged in the front-back direction, and a third reinforcing bar 603 arranged in the left-right direction, the second reinforcing bar 602 is arranged horizontally and parallel to the inner and outer sides of the insulation layer 2; the U-shaped groove 11 is provided with a V-shaped opening 12 to facilitate the second reinforcing bar 602 to enter the U-shaped groove 11.

[0036] like Figure 4 and Figure 5As shown, as a further optimization, the connecting rod 7 is provided with a threaded connection section 15. The threaded connection section 15 and the clamping plate 10 are respectively located on both sides of the support plate 9. The threaded connection section 15 is equipped with a fixing nut 16. Through the fixing nut 16 and the threaded connection section 15, the side of the insulation layer 2 close to the protective layer 3 can be limited, preventing the insulation layer 2 from deviating to the side of the protective layer 3.

[0037] Specifically, the length of the sleeve 8 on the side of the support plate 9 closest to the first anti-corrosion cap 13 is the same as the thickness of the insulation layer 2, and the threaded connection section 15 is connected to the end of the sleeve 8. The threaded connection section 15 includes an annular step on the connecting rod 7 with a diameter larger than the diameter of the connecting rod 7 and smaller than the outer diameter of the sleeve 8. The step is provided with external threads so that the fixing nut 16 can be assembled smoothly.

[0038] As a further optimization, the total length of the structural connector is equal to the distance between the structural layer template 4 and the protective layer template 5, and the two ends of the structural connector abut against the two templates respectively.

[0039] Specific usage instructions:

[0040] like Figure 6 and Figure 7 As shown, Figure 6 There are four installation positions for structural connectors arranged from top to bottom. The clamping plate 10 of the structural connector at the second installation position from the top is in a horizontal state and has not yet clamped the second reinforcing bar 602. The clamping plates 10 of the structural connectors at the two installation positions below are in a vertical state and have clamped the second reinforcing bar 602.

[0041] Before pouring the cast-in-place concrete sandwich insulated wall, after the structural layer steel reinforcement 6 is tied, first place the insulation layer 2 on the outside of the structural wall. Then, the end of the structural connector away from the second anti-corrosion cap 14 is passed through the structural layer 1, insulation layer 2 and protective layer 3 in sequence. When the support plate 9 contacts the insulation layer 2, stop inserting and rotate the connecting rod 7 at the same time. When the U-shaped slot 11 locks the second steel reinforcement 602, stop rotating. Then fix the first anti-corrosion cap 13, protect the formwork, fix the support, repeat the above steps, set multiple structural connectors, and finally fix the structural layer formwork 4 and the protective layer formwork 5, and pour the concrete.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A structural connector for cast-in-place concrete sandwich insulated walls, characterized in that: It includes a connecting rod (7) and a sleeve (8) provided on the connecting rod (7). The two ends of the connecting rod (7) are respectively provided with a first anti-corrosion cap (13) and a second anti-corrosion cap (14). The first anti-corrosion cap (13) is threaded to one end of the connecting rod (7), and the second anti-corrosion cap (14) is fixed to the other end of the connecting rod (7). A support plate (9) is provided perpendicularly to the sleeve (8). A clamping plate (10) is fixed between the support plate (9) and the second anti-corrosion cap (14) on the sleeve (8). The clamping plate (10) and the support plate (9) are provided perpendicularly to each other. A U-shaped groove (11) is provided at the outer end of the clamping plate (10).

2. A structural connector for cast-in-place concrete sandwich insulated walls according to claim 1, characterized in that: The second anti-corrosion cap (14) is injection molded at the end of the connecting rod (7).

3. A structural connector for cast-in-place concrete sandwich insulated walls according to claim 2, characterized in that: The first anti-corrosion cap (13) is a washer nut and a cap-shaped nut; the connecting rod (7) has an external thread at one end where the first anti-corrosion cap (13) is located.

4. A structural connector for cast-in-place concrete sandwich insulated walls according to claim 1, characterized in that: The support plate (9) is fan-shaped, circular, or square.

5. A structural connector for cast-in-place concrete sandwich insulated walls according to claim 4, characterized in that: The support plate (9) is semi-circular, the connecting rod (7) is located in the middle of the straight edge of the support plate (9), the clamping plate (10) is fixedly connected to the support plate (9), and the straight edge of the clamping plate (10) and the support plate (9) are perpendicular to each other.

6. A structural connector for cast-in-place concrete sandwich insulated walls according to claim 5, characterized in that: The sleeve (8), support plate (9) and clamping plate (10) are integrally injection molded.

7. A structural connector for cast-in-place concrete sandwich insulated walls according to claim 1, characterized in that: The U-shaped slot (11) is provided with a V-shaped opening (12); the width of the U-shaped slot (11) is adapted to the diameter of the second steel bar (602) in the structural layer steel bar (6); the second steel bar (602) is set horizontally and is set parallel to the inner and outer sides of the insulation layer (2).

8. A structural connector for cast-in-place concrete sandwich insulated walls according to claim 1, characterized in that: The connecting rod (7) is provided with a threaded connecting section (15), and the threaded connecting section (15) and the clamping plate (10) are located on both sides of the support plate (9), and the threaded connecting section (15) is equipped with a fixing nut (16).

9. A structural connector for cast-in-place concrete sandwich insulated walls according to claim 8, characterized in that: The length of the sleeve (8) on the side of the support plate (9) near the first anti-corrosion cap (13) is the same as the thickness of the insulation layer (2), and the threaded connection section (15) is connected to the end of the sleeve (8); the threaded connection section (15) includes.

10. A structural connector for cast-in-place concrete sandwich insulated walls according to any one of claims 1-9, characterized in that: The total length of the structural connector is equal to the distance between the structural layer template (4) and the protective layer template (5).

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