Civil air defense roof beam body steel bar connecting structure

Abstract

The utility model relates to the technical field of steel bar connecting devices, and provides a civil air defense roof beam body steel bar connecting structure which comprises a base plate, a plurality of guide rods fixedly arranged on the inner surface of the base plate, a driving screw rotationally connected to the inner surface of the base plate, an adjusting block fixedly arranged on one end face of the driving screw, and two moving plates in threaded connection with the outer surface of the driving screw. Two to-be-connected steel bars are placed on the opposite inner surfaces of the first fastening plate and the second fastening plate in the base plate, the adjusting block is rotated through an external construction tool, the adjusting block drives the driving screw rod to rotate, and the two to-be-connected steel bars are fixed to the outer surface of the base plate under limiting and guiding of the guide rods in the base plate. The driving screw rotates to drive the moving plates on the two sides to move in the base plate in the opposite directions along the surfaces of the multiple guide rods, then the first fastening plate and the second fastening plate are driven to move in the opposite directions along the multiple guide rods to get close to and make contact with the surfaces of the two steel bars to be connected, and the two steel bars are fastened, clamped and positioned.

Description

Technical Field

[0001] This utility model relates to the technical field of steel bar connection devices, and in particular to a steel bar connection structure for the roof beam of a civil defense structure. Background Technology

[0002] The steel reinforcement connection structure of the roof slab beams of civil defense projects is a key component of the structure, playing an important role in the strength and stability of the steel reinforcement connection structure. The design and construction quality of the steel reinforcement connection structure of the roof slab beams of civil defense projects are directly related to the overall protective performance and durability of the civil defense projects.

[0003] In existing technologies, the reinforcement connection structure of the roof beam of civil defense is insufficient to secure the connection between two steel bars. This can easily lead to a reduction in the strength of the structural nodes, a decrease in the overall structural ductility and load-bearing capacity of the reinforcement connection structure, and an increase in the uneven stress on the reinforcement structure due to steel bar slippage, which in turn reduces the overall strength and stability. Furthermore, the lack of a structure to waterproof and seal the steel bar connection allows moisture to seep into the concrete through unsealed joints, accelerating steel bar corrosion, causing the protective layer to peel off and cross-sectional area to be lost. Ultimately, this results in a reduction in the durability and load-bearing capacity of the reinforcement connection structure. Utility Model Content

[0004] The purpose of this utility model is to provide a steel reinforcement connection structure for the roof beam of civil defense structures. This utility model designs a structure for fastening the connection of two steel bars, avoiding insufficient strength of the structural nodes, improving the overall structural ductility and load-bearing capacity of the steel reinforcement connection structure, and preventing uneven stress on the steel reinforcement structure caused by steel bar slippage, thereby improving the overall strength and stability. A waterproof sealing structure is designed for the steel bar connection, reducing the accelerated corrosion of the steel bars caused by moisture seeping into the concrete through unsealed nodes, reducing the peeling of the protective layer and cross-sectional loss, and improving the durability and structural bearing capacity of the steel reinforcement connection structure.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a steel reinforcement connection structure for a civil defense roof slab beam, comprising:

[0006] A substrate, wherein a plurality of guide rods are fixedly disposed on the inner surface of the substrate, and further includes:

[0007] A drive screw is rotatably connected to the inner surface of the substrate. An adjusting block is fixedly installed on one end face of the drive screw. Two movable plates are threadedly connected to the outer surface of the drive screw. The two movable plates are slidably connected to the outer surfaces of multiple guide rods. A first fastening plate is fixedly installed on the outer surface of one movable plate, and a second fastening plate is fixedly installed on the outer surface of the other movable plate. The first fastening plate and the second fastening plate are symmetrically arranged opposite to each other on the two movable plates. The two steel bars to be connected are placed on the inner surfaces of the first fastening plate and the second fastening plate opposite to each other in the substrate. The adjusting block is rotated using an external construction tool. The adjusting block drives the drive screw to rotate. Under the limiting guidance of multiple guide rods in the substrate, the rotation of the drive screw drives the two movable plates on both sides to move in opposite directions along the surfaces of multiple guide rods in the substrate. This causes the first fastening plate and the second fastening plate to move in opposite directions along multiple guide rods to approach and contact the surfaces of the two steel bars to be connected, thereby clamping and positioning the two steel bars.

[0008] Preferably, a plurality of first connecting plates are fixedly disposed on the outer surface of the first fastening plate. The plurality of first connecting plates are symmetrically disposed near the four corners of the outer surface of the first fastening plate, and the plurality of first connecting plates assist in positioning and fastening the first fastening plate.

[0009] Preferably, a plurality of second connecting plates are fixedly disposed on the outer surface of the second fastening plate. The plurality of second connecting plates are symmetrically disposed near the four corners of the second fastening plate, and the plurality of second connecting plates assist in positioning and fastening the second fastening plate.

[0010] Preferably, positioning holes are provided on the outer surfaces of the plurality of first connecting plates and the plurality of second connecting plates. The plurality of positioning holes are symmetrically arranged on the outer surfaces of the first connecting plates and the plurality of second connecting plates, and the first connecting plates and the plurality of second connecting plates are positioned by the plurality of positioning holes.

[0011] Preferably, a first sealing gasket is fixedly provided on the outer surface of each of the plurality of first connecting plates, and the inner diameter of the plurality of first sealing gaskets is the same as the diameter of the plurality of positioning holes. The plurality of first sealing gaskets provide waterproof sealing for the plurality of first connecting plates and the plurality of positioning holes.

[0012] Preferably, a second sealing gasket is fixedly provided on the outer surface of each of the plurality of second connecting plates, and the inner diameter of the plurality of second sealing gaskets is the same as the diameter of the plurality of positioning holes. The plurality of second sealing gaskets provide waterproof sealing for the plurality of second connecting plates and the plurality of positioning holes.

[0013] Preferably, each of the inner surfaces of the plurality of positioning holes is movably connected with a mounting bolt, and each of the outer surfaces of the plurality of mounting bolts is threaded with a fixing nut. The plurality of mounting bolts and fixing nuts are tightened, and the plurality of first connecting plates and second connecting plates are used to assist in positioning and fastening the first fastening plate and the second fastening plate.

[0014] Preferably, multiple metal-based friction particles are fixedly provided on the inner surfaces of the first and second fastening plates, and auxiliary threaded grooves are provided on the inner surfaces of the first and second fastening plates. The auxiliary threaded grooves in the first and second fastening plates assist in fastening the two reinforcing bars. The metal-based friction particles on the opposing surfaces of the first and second fastening plates have high hardness and strong wear resistance, which can significantly increase the roughness and friction of the inner surfaces of the first and second fastening plates.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, two steel bars to be connected are placed on the inner surfaces of the first and second fastening plates in the substrate. An external construction tool is used to rotate the adjusting block, which drives the drive screw to rotate. Under the limiting guidance of multiple guide rods in the substrate, the drive screw rotates and drives the two moving plates on both sides to move in opposite directions along the surfaces of multiple guide rods in the substrate. This causes the first and second fastening plates to move in opposite directions along multiple guide rods to approach and contact the surfaces of the two steel bars to be connected, thereby fastening and clamping the two steel bars for positioning.

[0017] 2. In this utility model, multiple mounting bolts are tightened with fixing nuts, and multiple first connecting plates and second connecting plates are used to assist in positioning and fastening the first fastening plate and the second fastening plate. Multiple first sealing gaskets and multiple second sealing gaskets are made of metal spiral wound gasket composite sealing material, which reduces the amount of water seeping into the device and causing accelerated corrosion of metal connectors, thereby affecting the durability of the steel reinforcement connection structure. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a steel reinforcement connection structure for a civil defense roof slab beam provided by this utility model;

[0019] Figure 2 A side perspective three-dimensional structural diagram of a steel reinforcement connection structure for a civil defense roof slab beam provided by this utility model;

[0020] Figure 3 A top view schematic diagram of the steel reinforcement connection structure of the roof beam of a civil defense structure provided by this utility model;

[0021] Figure 4 This utility model provides a steel reinforcement connection structure for the roof beam of a civil defense structure. Figure 1 A magnified three-dimensional structural diagram at point A in the diagram.

[0022] Legend:

[0023] 1. Base plate; 2. First fastening plate; 3. Guide rod; 4. Adjusting block; 5. First connecting plate; 6. First sealing gasket; 7. Metal-based friction particles; 8. Auxiliary threaded groove; 9. Second connecting plate; 10. Fixing nut; 11. Drive screw; 12. Second fastening plate; 13. Mounting bolt; 14. Moving plate; 15. Positioning hole; 16. Second sealing gasket. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1, as Figures 1 to 4 As shown, this utility model provides a steel reinforcement connection structure for a civil defense roof beam, including a base plate 1. Multiple guide rods 3 are fixedly arranged on the inner surface of the base plate 1. A drive screw 11 is rotatably connected to the inner surface of the base plate 1. An adjusting block 4 is fixedly arranged on one end face of the drive screw 11. Two movable plates 14 are threadedly connected to the outer surface of the drive screw 11. The two movable plates 14 are slidably connected to the outer surfaces of the multiple guide rods 3 respectively. A first fastening plate 2 is fixedly arranged on the outer surface of one movable plate 14, and a second fastening plate 12 is fixedly arranged on the outer surface of the other movable plate 14. The first fastening plate 2 and the second fastening plate 12 are connected at the two movable plates 14. The moving plates 14 are symmetrically arranged opposite each other. The two steel bars to be connected are placed on the inner surfaces of the first fastening plate 2 and the second fastening plate 12 in the base plate 1. The adjusting block 4 is rotated using an external construction tool. The adjusting block 4 drives the drive screw 11 to rotate. Under the limiting guidance of multiple guide rods 3 in the base plate 1, the drive screw 11 rotates and drives the moving plates 14 on both sides to move in opposite directions along the surfaces of multiple guide rods 3 in the base plate 1. This causes the first fastening plate 2 and the second fastening plate 12 to move in opposite directions along multiple guide rods 3 to approach and contact the surfaces of the two steel bars to be connected, thereby fastening and clamping the two steel bars for positioning.

[0027] Furthermore, such as Figures 1 to 4 As shown, a plurality of first connecting plates 5 are fixedly provided on the outer surface of the first fastening plate 2. The plurality of first connecting plates 5 are symmetrically arranged near the four corners on the outer surface of the first fastening plate 2, and the plurality of first connecting plates 5 provide auxiliary positioning and fastening for the first fastening plate 2.

[0028] Furthermore, such as Figures 1 to 4As shown, a plurality of second connecting plates 9 are fixedly provided on the outer surface of the second fastening plate 12. The plurality of second connecting plates 9 are symmetrically arranged near the four corners of the second fastening plate 12, and the plurality of second connecting plates 9 provide auxiliary positioning and fastening for the second fastening plate 12.

[0029] Furthermore, such as Figures 1 to 4 As shown, positioning holes 15 are provided on the outer surfaces of multiple first connecting plates 5 and multiple second connecting plates 9. The multiple positioning holes 15 are symmetrically arranged on the outer surfaces of the first connecting plates 5 and multiple second connecting plates 9, and the first connecting plates 5 and multiple second connecting plates 9 are positioned through the multiple positioning holes 15.

[0030] Furthermore, such as Figures 1 to 4 As shown, a first sealing gasket 6 is fixedly provided on the outer surface of a plurality of first connecting plates 5. The inner diameter of the plurality of first sealing gaskets 6 is the same as the diameter of the plurality of positioning holes 15. The plurality of first sealing gaskets 6 provide waterproof sealing for the plurality of first connecting plates 5 and the plurality of positioning holes 15.

[0031] Furthermore, such as Figures 1 to 4 As shown, a second sealing gasket 16 is fixedly provided on the outer surface of a plurality of second connecting plates 9. The inner diameter of the plurality of second sealing gaskets 16 is the same as the diameter of the plurality of positioning holes 15. The plurality of second sealing gaskets 16 provide waterproof sealing for the plurality of second connecting plates 9 and the plurality of positioning holes 15.

[0032] Furthermore, such as Figures 1 to 4 As shown, mounting bolts 13 are movably connected to the inner surfaces of multiple positioning holes 15, and fixing nuts 10 are threadedly connected to the outer surfaces of multiple mounting bolts 13. By tightening multiple mounting bolts 13 and fixing nuts 10, multiple first connecting plates 5 and second connecting plates 9 are used to assist in positioning and fastening the first fastening plate 2 and the second fastening plate 12.

[0033] Furthermore, such as Figures 1 to 4 As shown, multiple metal-based friction particles 7 are fixedly provided on the inner surfaces of the first fastening plate 2 and the second fastening plate 12. Auxiliary threaded grooves 8 are provided on the inner surfaces of the first fastening plate 2 and the second fastening plate 12. The auxiliary threaded grooves 8 in the first fastening plate 2 and the second fastening plate 12 assist in fastening the two reinforcing bars. The metal-based friction particles 7 on the inner surfaces of the first fastening plate 2 and the second fastening plate 12 have high hardness and strong wear resistance, which can significantly increase the roughness and friction of the inner surfaces of the first fastening plate 2 and the second fastening plate 12.

[0034] Working principle: The two reinforcing bars to be connected are placed on the inner surfaces of the first fastening plate 2 and the second fastening plate 12 in the base plate 1. An external construction tool is used to rotate the adjusting block 4, which drives the drive screw 11 to rotate. Under the limiting guidance of multiple guide rods 3 in the base plate 1, the drive screw 11 rotates, causing the two side moving plates 14 to move in opposite directions along the surfaces of the multiple guide rods 3 in the base plate 1. This, in turn, causes the first fastening plate 2 and the second fastening plate 12 to move in opposite directions along the multiple guide rods 3, approaching and contacting the surfaces of the two reinforcing bars to be connected, thus clamping and positioning the two reinforcing bars. The auxiliary components in the first fastening plate 2 and the second fastening plate 12... The threaded groove 8 assists in fastening the two reinforcing bars. The metal-based friction particles 7 in the opposing surfaces of the first fastening plate 2 and the second fastening plate 12 have high hardness and strong wear resistance, which can significantly increase the roughness and friction of the inner surfaces of the first fastening plate 2 and the second fastening plate 12. Multiple mounting bolts 13 and fixing nuts 10 are tightened. Multiple first connecting plates 5 and second connecting plates 9 are used to assist in positioning and fastening the first fastening plate 2 and the second fastening plate 12. Multiple first sealing gaskets 6 and multiple second sealing gaskets 16 adopt metal spiral wound gasket composite sealing material to reduce the infiltration of water into the device, which would accelerate the corrosion of the metal connectors and thus affect the durability of the reinforcing bar connection structure.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A human defense roof beam body steel bar connecting structure, comprising: The utility model provides a substrate (1), a plurality of guide rods (3) are fixedly arranged on the inner surface of substrate (1), characterized by further comprising: A drive screw (11) is rotatably connected to the inner surface of the substrate (1), one end of the drive screw (11) is fixedly provided with an adjusting block (4), the outer surface of the drive screw (11) is threadedly connected with two moving plates (14), the outer surface of the two moving plates (14) is slidably connected with the outer surface of the plurality of guide rods (3), the outer surface of one side of the moving plate (14) is fixedly provided with a first fastening plate (2), the outer surface of the other side of the moving plate (14) is fixedly provided with a second fastening plate (12), the first fastening plate (2) and the second fastening plate (12) are symmetrically arranged on the opposite surfaces of the two moving plates (14).

2. The reinforced concrete roof beam structure of civil air defense according to claim 1, characterized in that: The outer surface of the first fastening plate (2) is fixedly provided with a plurality of first connecting plates (5), and the plurality of first connecting plates (5) are symmetrically arranged on the outer surface of the first fastening plate (2) near the four corners.

3. The reinforced concrete roof beam structure of civil air defense according to claim 2, characterized in that: The outer surface of the second fastening plate (12) is fixedly provided with a plurality of second connecting plates (9), and the plurality of second connecting plates (9) are symmetrically arranged on the second fastening plate (12) near the four corners.

4. The reinforced concrete roof beam structure of civil air defense according to claim 3, characterized in that: The outer surfaces of the plurality of first connecting plates (5) and the plurality of second connecting plates (9) are each provided with a positioning hole (15), and the plurality of positioning holes (15) are symmetrically arranged on the outer surfaces of the first connecting plates (5) and the plurality of second connecting plates (9).

5. The reinforced concrete roof beam structure of civil air defense according to claim 4, characterized in that: The outer surfaces of the plurality of first connecting plates (5) are each fixedly provided with a first sealing gasket (6), and the inner diameters of the plurality of first sealing gaskets (6) are the same as the diameters of the plurality of positioning holes (15).

6. The reinforced concrete roof beam structure of civil air defense according to claim 4, characterized in that: The outer surfaces of the plurality of second connecting plates (9) are each fixedly provided with a second sealing gasket (16), and the inner diameters of the plurality of second sealing gaskets (16) are the same as the diameters of the plurality of positioning holes (15).

7. The reinforced concrete roof beam structure of civil air defense according to claim 6, characterized in that: The inner surfaces of the plurality of positioning holes (15) are each movably connected with a mounting bolt (13), and the outer surfaces of the plurality of mounting bolts (13) are each threadedly connected with a fixing nut (10).

8. The reinforced concrete roof beam structure of civil air defense according to claim 3, characterized in that: The inner surfaces of the first fastening plate (2) and the second fastening plate (12) opposite to each other are each fixedly provided with a plurality of metal-based friction particles (7), and the inner surfaces of the first fastening plate (2) and the second fastening plate (12) opposite to each other are each provided with an auxiliary threaded groove (8).

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