Hollow slab beam support embedded steel plate anchoring steel bar welding protection device

Abstract

The utility model relates to a hollow slab beam support embedded steel plate anchoring steel bar welding protection device, and belongs to the field of bridge engineering, the hollow slab beam support embedded steel plate anchoring steel bar welding protection device comprises a protection plate, a welding hole is formed in the protection plate, the protection plate is attached to an embedded steel plate, and an anchoring steel bar penetrates through the welding hole; and a welding seam between the embedded steel plate and the anchoring steel bar is positioned in the welding hole. Through the protection plate, the embedded steel plate is shielded and protected during welding, and the negative influence of welding flux splashing generated in the welding process on a zinc coating on the surface of the embedded steel plate is reduced.

Description

Technical Field

[0001] The present application relates to the field of bridge engineering, and in particular to a welding protection device for pre-embedded steel plates and anchored steel bars in hollow slab beam supports. Background Art

[0002] The superstructure of a bridge mainly includes plate beams, box beams and T-beams, which refer to the cross-sectional form of the main beams of the bridge. Plate beams are beam-type structural members composed of steel plates, which include I-shaped plate beams, hollow plate beams, etc. according to their shapes.

[0003] In the related art, a pre-embedded steel plate is provided in the hollow slab beam, and anchor steel bars are fixed on the pre-embedded steel plate by welding to improve the connection strength between the pre-embedded steel plate and the concrete structure. A galvanized layer is provided on the surface of the pre-embedded steel plate, and in the process of welding the anchor steel bar to the pre-embedded steel plate, the generated solder splashes will damage the galvanized layer on the surface of the pre-embedded steel plate, causing the structural strength of the pre-embedded steel plate to decrease. Utility Model Content

[0004] In order to improve the above-mentioned problems, the present application provides a welding protection device for pre-embedded steel plates and anchored steel bars in hollow slab beam supports.

[0005] The present application provides a hollow slab beam support embedded steel plate anchor steel bar welding protection device adopts the following technical solution:

[0006] A welding protection device for embedded steel plates and anchored steel bars in hollow slab beam supports comprises a protection plate with welding holes formed thereon. The protection plate is fitted with the embedded steel plates, the welding holes are for anchored steel bars to pass through, and the weld between the embedded steel plates and the anchored steel bars is located in the welding holes.

[0007] Preferably, it also includes a positioning component, which is used to relatively fix the protective plate and the embedded steel plate. The positioning component includes a fixing block, which is fixedly connected to the protective plate and abuts against the side edge of the embedded steel plate.

[0008] Preferably, the positioning assembly further comprises a clamping block, the clamping block and the protective plate slide relative to each other, the sliding direction is close to or away from the embedded steel plate, and the fixing block and the clamping block are respectively abutted against opposite sides of the embedded steel plate.

[0009] Preferably, the positioning assembly also includes an operating rod, the clamping block is fixedly connected to one side of the operating rod, a dovetail groove is provided on the side of the protective plate facing the embedded steel plate, the operating rod is inserted into the dovetail groove, and the clamping block extends from the notch of the dovetail groove.

[0010] Preferably, the positioning assembly also includes a fastening wedge, which is slidably connected to the protective plate, and the sliding direction is perpendicular to the sliding direction of the operating rod. A backstop ratchet is fixedly provided on the operating rod, and a section of the fastening wedge is inserted into the gap of the backstop ratchet. A thrust spring is connected between the fastening wedge and the protective plate, and the thrust spring applies thrust to the fastening wedge.

[0011] Preferably, a liquid storage chamfer is provided on the edge of the hole opening on the side of the welding hole close to the embedded steel plate.

[0012] The present application includes at least one of the following beneficial technical effects:

[0013] 1. Through the provision of a protective plate with welding holes, after the protective plate contacts the embedded steel plate, the welding holes provide welding space for anchoring steel bars, and at the same time, the protective plate shields and protects the surface of the embedded steel plate, thereby reducing the damage to the galvanized layer on the surface of the embedded steel plate caused by the solder splashes generated during welding;

[0014] 2. Through the setting of the clamping block and the fixing block, the clamping block moves close to the embedded steel plate, and finally the clamping block and the fixing block clamp the embedded steel plate temporarily to fix it, thereby improving the relative position certainty and stability of the protective plate and the embedded steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram used to embody the welding protection device for pre-embedded steel plates and anchored steel bars of hollow slab beam supports in Example 1 of the present application.

[0016] Figure 2 It is a schematic diagram of the matching structure of the embedded steel plate anchor steel bar welding protection device and the embedded steel plate of the hollow slab beam support in the second embodiment of the present application.

[0017] Figure 3 It is a schematic cross-sectional view of the structure of the positioning component used to illustrate the second embodiment of the present application.

[0018] Explanation of the reference numerals: 1. Embedded steel plate; 11. Anchor steel bar; 2. Protective plate; 21. Welding hole; 211. Liquid storage chamfer; 22. Dovetail groove; 3. Positioning assembly; 31. Fixing block; 32. Operating lever; 321. Clamping block; 322. Stop ratchet; 33. Fastening wedge; 34. Thrust spring. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 This application is described in further detail.

[0020] Embodiment 1:

[0021] The present application embodiment discloses a hollow slab beam support embedded steel plate anchor steel bar welding protection device, such as Figure 1As shown, the embedded steel plate 1 is a rectangular galvanized steel plate, and there are two anchoring steel bars 11, which are welded on the same side of the embedded steel plate 1. The welding protection device includes a protective plate 2, which is also a rectangular straight plate made of inorganic material. Two welding holes 21 are provided on the protective plate 2, and a single welding hole 21 corresponds to a weld between an anchoring steel bar 11 and the embedded steel plate 1. During the process of welding the anchoring steel bar 11 to the embedded steel plate 1, the anchoring steel bar 11 passes through the welding hole 21 and contacts the embedded steel plate 1, and the weld between the embedded steel plate 1 and the anchoring steel bar 11 is located in the welding hole 21. The protective plate 2 is used to isolate the flying solder spatter generated during the welding process and reduce the contact between the spatter and the galvanized layer on the surface of the embedded steel plate 1.

[0022] Embodiment 2:

[0023] like Figure 2 and 3 As shown, on the basis of the first embodiment, this embodiment includes a positioning assembly 3, which is used to relatively fix the protective plate 2 and the embedded steel plate 1 during the welding operation. The positioning assembly 3 includes a fixing block 31, a clamping block 321 and an operating rod 32. The fixing block 31 is fixedly connected to one side of the protective plate 2. There are two fixing blocks 31. During welding, the protective plate 2 and the embedded steel plate 1 are in contact with each other, and the two fixing blocks 31 are respectively in contact with two adjacent side edges of the embedded steel plate 1. There are also two operating rods 32 and clamping blocks 321, and a single clamping block 321 is fixedly set on the side wall of an operating rod 32. A dovetail groove 22 is provided on the side of the protective plate 2 facing the embedded steel plate 1, and the operating rod 32 is inserted into the dovetail groove 22 along the length direction of the dovetail groove 22, and the operating rod 32 is completely located within the depth range of the dovetail groove 22, and the clamping block 321 extends from the notch of the dovetail groove 22 and is located on the side of the protective plate 2 facing the embedded steel plate 1. The operator controls the movement of the clamping block 321 by sliding the operating rod 32, and the sliding direction is close to or away from the embedded steel plate 1, so that the clamping block 321 abuts against the edge of the side of the embedded steel plate 1 away from the fixed block 31. At this time, the clamping block 321 and the fixed block 31 form a clamping effect on the embedded steel plate 1, and the lateral relative position of the embedded steel plate 1 and the protective plate 2 remains stable.

[0024] like Figure 2 and 3 As shown, the positioning assembly 3 also includes a fastening wedge 33, which is slidably connected to the protective plate 2, and the sliding direction is perpendicular to the sliding direction of the operating rod 32. A stop ratchet 322 is fixedly provided on the operating rod 32, and a thrust spring 34 is connected between the fastening wedge 33 and the protective plate 2. In a natural state, the thrust spring 34 applies a thrust to the fastening wedge 33, so that a section of the fastening wedge 33 is inserted into the gap of the stop ratchet 322, so that the operating rod 32 and the clamping block 321 always have a tendency to move close to the embedded steel plate 1, and the clamping block 321 and the fixed block 31 always clamp the embedded steel plate 1.

[0025] like Figure 3 As shown, a liquid storage chamfer 211 is provided at the edge of the hole of the welding hole 21 close to the embedded steel plate 1; when the protective plate 2 is attached to the embedded steel plate 1, the liquid storage chamfer 211 forms a narrow space at the contour of the welding hole 21, and the operator can apply anti-splash liquid in this space.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hollow slab beam support embedded steel plate anchor steel bar welding protection device, characterized by: The invention comprises a protective plate (2), wherein a welding hole (21) is provided on the protective plate (2), the protective plate (2) is fitted with the embedded steel plate (1), the welding hole (21) is for the anchoring steel bar (11) to pass through, and the weld between the embedded steel plate (1) and the anchoring steel bar (11) is located in the welding hole (21).

2. A hollow slab beam support embedded steel plate anchor steel bar welding protection device according to claim 1, characterized in that: The invention also includes a positioning assembly (3), the positioning assembly (3) being used to relatively fix the protective plate (2) and the embedded steel plate (1), the positioning assembly (3) including a fixing block (31), the fixing block (31) being fixedly connected to the protective plate (2), and the fixing block (31) being in contact with the side edge of the embedded steel plate (1).

3. The hollow slab beam support embedded steel plate anchor steel bar welding protection device according to claim 2, characterized in that: The positioning assembly (3) further comprises a clamping block (321), wherein the clamping block (321) and the protective plate (2) slide relative to each other, and the sliding direction is toward or away from the embedded steel plate (1), and the fixing block (31) and the clamping block (321) respectively abut against opposite sides of the embedded steel plate (1).

4. The hollow slab beam support embedded steel plate anchor steel bar welding protection device according to claim 3, characterized in that: The positioning assembly (3) further includes an operating rod (32), the clamping block (321) is fixedly connected to one side of the operating rod (32), a dovetail groove (22) is provided on the side of the protective plate (2) facing the embedded steel plate (1), the operating rod (32) is inserted into the dovetail groove (22), and the clamping block (321) extends from the notch of the dovetail groove (22).

5. The hollow slab beam support embedded steel plate anchor steel bar welding protection device according to claim 4, characterized in that: The positioning assembly (3) further includes a fastening wedge (33), the fastening wedge (33) being slidably connected to the protective plate (2), the sliding direction of which is perpendicular to the sliding direction of the operating rod (32), the operating rod (32) being fixedly provided with a stop ratchet (322), a section of the fastening wedge (33) being inserted into the gap of the stop ratchet (322), a thrust spring (34) being connected between the fastening wedge (33) and the protective plate (2), the thrust spring (34) applying thrust to the fastening wedge (33).

6. A hollow slab beam support embedded steel plate anchor steel bar welding protection device according to any one of claims 1 to 5, characterized in that: A liquid storage chamfer (211) is provided on the edge of the opening of the welding hole (21) on one side close to the embedded steel plate (1).

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