A double-layer bailey support device for cast-in-situ box girder of a through bridge

Abstract

The utility model relates to bridge construction technical field, and disclose a kind of keep open bridge cast-in-place box girder double-layer bailey support device, including double-layer bailey beam assembly, the bottom of double-layer bailey beam assembly is provided with bottom support assembly, bottom support assembly includes base, the top of base is symmetrically equipped with two support seats, the top of support seat is symmetrically equipped with side plate, two side plates between symmetrically equipped with two clamps, the side of two clamps mutually close is equipped with three positioning columns, wherein two clamps are clamped to double-layer bailey beam assembly, and positioning column is positioned to double-layer bailey beam assembly, the utility model, through support seat, double-layer bailey beam assembly is supported, and after two clamps mutually close, realize the clamping fixation of double-layer bailey beam assembly, and the three positioning angles formed by three positioning columns, girder body frame and prism reinforcing frame set up on clamp correspond, after positioning column is inserted into positioning angle, realize the position fixation of double-layer bailey beam assembly.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, specifically a double-layer Bailey support device for cast-in-place box girders of a bridge. Background Technology

[0002] According to the patent document with authorization announcement number "CN222290084U" and invention title "A Support Device for Building Bailey Frames", the description states that in use, the building Bailey frame is placed on a load-bearing frame, and the push block on the support frame is adjusted according to the size of the Bailey frame. The push rod is pushed to slide within the sliding cavity via a connecting slide rod, which then compresses the spring inside the positioning slide rail via a connecting rod. After adjusting to the appropriate distance, the push block is released, and the elasticity of the spring pushes the connecting rod to slide back to its original position within the positioning slide rail. As the push block slides, it is cushioned by anti-slip protrusions, facilitating the push rod to be pushed out of the sliding cavity. This allows the positioning plate to fit tightly against the outer wall of the building Bailey frame, adapting to Bailey frames of different sizes and shapes, improving construction efficiency, and effectively fixing the Bailey frame to ensure safety during construction. To adjust the processing position of the building Bailey frame, it can be pushed to one side, at which point the roller slides within the slide groove, assisting in the sliding and reducing resistance. However, the following drawbacks still exist: During the support process of Bailey bridge, it is not easy to effectively limit and fix the Bailey bridge, which makes the Bailey bridge easy to move laterally, thus affecting the stability of the fixation. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a double-layer Bailey support device for cast-in-place box girders of bridges, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double-layer Bailey support device for cast-in-place box girder of a bridge, comprising a double-layer Bailey beam assembly, wherein a bottom support assembly is provided at the bottom of the double-layer Bailey beam assembly; The bottom support assembly includes a base, with two support seats symmetrically installed at the top of the base, and side plates symmetrically installed at the top of the support seats. Two clamping plates are symmetrically arranged between the two side plates, and three positioning posts are installed on the side of the two clamping plates that are close to each other. The two clamping plates clamp the double-layer Bailey beam assembly, while the positioning posts limit the double-layer Bailey beam assembly.

[0005] Preferably, a slider is fixedly installed at the bottom end of the clamping plate, and the slider is slidably installed inside the slide groove, which is symmetrically opened on the support base.

[0006] Preferably, a screw barrel is installed on the side plate, and a push screw is installed on the internal thread of the screw barrel. One end of the push screw contacts the clamping plate, and a throttle is installed on the other end of the push screw.

[0007] Preferably, the support base has an internal movable groove, and two sliding grooves are connected to the movable groove. Four negative pressure grooves are evenly provided at the top of the movable groove, and sealing gaskets are evenly installed at the top of the support base, with each sealing gasket corresponding to a negative pressure groove.

[0008] Preferably, a piston block is movably installed inside the negative pressure groove, and a bottom rod is fixedly installed at the bottom end of the piston block. A connecting plate is provided inside the movable groove, and the connecting plate is fixedly connected to the bottom rod. Connecting rods are symmetrically hinged at both ends of the connecting plate, and the ends of the two connecting rods are respectively hinged to two sliders.

[0009] Preferably, the double-layer Bailey beam assembly includes two beam frames bolted together, a central plate fixedly installed in the middle of the beam frames, the central plate dividing the beam frames into two frames, and a prism-shaped reinforcing frame installed in each frame.

[0010] Preferably, the two prismatic reinforcing frames correspond to the two support seats respectively, and the bottom corners of the prismatic reinforcing frames and the bottom of the prismatic reinforcing frames and the beam frame form three positioning angles.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model supports the double-layer Bailey beam assembly through a support base. When the two clamping plates come close to each other, they clamp and fix the double-layer Bailey beam assembly. At the same time, the three positioning posts set on the clamping plates correspond to the three positioning angles formed by the beam frame and the prism reinforcement frame. After the positioning posts are inserted into the positioning angles, the double-layer Bailey beam assembly is limited and fixed. This new type of clamping device uses two clamping plates to hold the double-layer Bailey beam assembly close to each other. Since the two sliders are connected to the connecting plate through two connecting rods, the two clamping plates move downwards after they come close to each other, causing the piston block in the negative pressure groove to move downwards. This creates a negative pressure fixation between the negative pressure groove and the double-layer Bailey beam assembly, thereby improving the fixation strength of the double-layer Bailey beam assembly. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the double-layer Bailey support device for cast-in-place box girder of the Baotong Bridge according to this utility model; Figure 2 This is a schematic diagram of the double-layer Bailey beam assembly structure of this utility model; Figure 3 This is a schematic diagram of the bottom support component structure of this utility model; Figure 4 This is a schematic diagram of the external structure of the support base of this utility model; Figure 5 This is a schematic diagram of the internal structure of the support base of this utility model; In the diagram: 1. Double-layer Bailey beam assembly; 101. Beam frame; 102. Middle plate; 103. Prism-shaped reinforcing frame; 104. Positioning angle; 2. Bottom support assembly; 201. Base; 202. Support seat; 203. Side plate; 204. Slide groove; 205. Clamping plate; 206. Positioning post; 207. Slider; 208. Screw; 209. Push screw; 210. Rotary handle; 211. Negative pressure groove; 212. Sealing gasket; 213. Movable groove; 214. Piston block; 216. Bottom rod; 217. Connecting plate; 218. Connecting rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] Example 1, by Figures 1-5 The present invention relates to a double-layer Bailey support device for cast-in-place box girder of a bridge, comprising a double-layer Bailey beam assembly 1, and a bottom support assembly 2 provided at the bottom of the double-layer Bailey beam assembly 1.

[0016] The double-layer Bailey beam assembly 1 includes two beam frames 101, which are bolted together. A central plate 102 is fixedly installed in the middle of the beam frame 101, which divides the beam frame 101 into two frames. A prismatic reinforcing frame 103 is installed in each frame. The bottom corner of the prismatic reinforcing frame 103 and the bottom of the prismatic reinforcing frame 103 form three positioning angles 104 with the bottom of the beam frame 101.

[0017] The bottom support assembly 2 includes a base 201. Two support seats 202 are symmetrically mounted on the top of the base 201. Two rhomboid reinforcing frames 103 correspond to the two support seats 202 respectively. Side plates 203 are symmetrically mounted on the top of the support seats 202. Two clamping plates 205 are symmetrically arranged between the two side plates 203. Three positioning posts 206 are installed on the side of each clamping plate 205 that is close to each other. The two clamping plates 205 clamp the double-layer Bailey beam assembly 1, while the positioning posts 206... The 06 is inserted into the positioning angle 104 to limit the double-layer Bailey beam assembly 1. The support seat 202 supports the double-layer Bailey beam assembly 1. After the two clamping plates 205 come close to each other, they clamp and fix the double-layer Bailey beam assembly 1. At the same time, the three positioning posts 206 set on the clamping plate 205 correspond to the three positioning angles 104 formed by the beam frame 101 and the prism reinforcement frame 103. After the positioning posts 206 are inserted into the positioning angles 104, the double-layer Bailey beam assembly 1 is limited and fixed.

[0018] A slider 207 is fixedly installed at the bottom of the clamping plate 205. The slider 207 is slidably installed inside the slide groove 204. The slide groove 204 is symmetrically opened on the support base 202. A screw barrel 208 is installed on the side plate 203. A push screw 209 is installed in the internal thread of the screw barrel 208. One end of the push screw 209 contacts the clamping plate 205, and a throttle 210 is installed at the other end of the push screw 209.

[0019] The support base 202 has an internal movable groove 213, and two sliding grooves 204 are connected to the movable groove 213. Four negative pressure grooves 211 are evenly distributed at the top of the movable groove 213. Sealing gaskets 212 are evenly installed at the top of the support base 202, with each sealing gasket corresponding to one of the negative pressure grooves 211. A piston block 214 is movably installed inside the negative pressure groove 211, and a bottom rod 216 is fixedly installed at the bottom end of the piston block 214. A connecting plate 217 is provided inside the movable groove 213, and the connecting plate 217 is fixedly connected to the bottom rod 216. Connecting rods 218 are symmetrically hinged at both ends of the connecting plate 217. The ends of the two connecting rods 218 are respectively hinged to two sliders 207. After the two clamping plates 205 approach each other to clamp the double-layer Bailey beam assembly 1, since the two sliders 207 are connected to the connecting plate 217 through the two connecting rods 218, the two clamping plates 205 approach each other and drive the piston block 214 in the negative pressure groove 211 to move downward, so that the negative pressure groove 211 and the double-layer Bailey beam assembly 1 are fixed by negative pressure, thereby improving the fixing strength of the double-layer Bailey beam assembly 1.

[0020] Working principle: When using the double-layer Bailey beam assembly 1, firstly, when supporting and fixing the double-layer Bailey beam assembly 1, clean the bottom wall of the beam frame 101, and then place the double-layer Bailey beam assembly 1 on top of the two support seats 202, so that the bottom wall of the beam frame 101 is in close contact with the top wall of the sealing gasket 212, and the two prism reinforcing frames 103 on the beam frame 101 correspond to the two support seats 202 respectively. Then, turn the handle 210 to rotate the push screw 209, thereby pushing the two clamping plates 205 closer to each other, so that the two clamping plates 205 clamp the two sides of the double-layer Bailey beam assembly 1. The positioning posts 206 on the clamping plates 205 are respectively engaged in the three positioning angles 104 formed by the beam frame 101 and the prism reinforcement frame 103, thereby supporting and clamping the double-layer Bailey beam assembly 1 while limiting the position of the double-layer Bailey beam assembly 1. When the clamping plate 205 moves toward the double-layer Bailey beam assembly 1, the slider 207 slides in the groove 204 and pushes the connecting plate 217 downward through the connecting rod 218, so that the piston block 214 moves downward along the negative pressure groove 211, so that negative pressure is generated between the negative pressure groove 211 and the double-layer Bailey beam assembly 1, forming a negative pressure fixing effect and improving the fixing strength of the double-layer Bailey beam assembly 1.

Claims

1. A double-layer Bailey support device for cast-in-place box girder of a bridge, comprising a double-layer Bailey beam assembly (1), characterized in that: The bottom of the double-layer Bailey beam assembly (1) is provided with a bottom support assembly (2); The bottom support assembly (2) includes a base (201), two support seats (202) are symmetrically installed on the top of the base (201), and side plates (203) are symmetrically installed on the top of the support seats (202). Two clamping plates (205) are symmetrically arranged between the two side plates (203). Three positioning columns (206) are installed on the side of the two clamping plates (205) that are close to each other. The two clamping plates (205) clamp the double-layer Bailey beam assembly (1), while the positioning columns (206) limit the double-layer Bailey beam assembly (1).

2. The double-layer Bailey bridge support device for cast-in-place box girder of a bridge as described in claim 1, characterized in that: The bottom end of the clamp (205) is fixedly installed with a slider (207), which is slidably installed inside the slide groove (204). The slide groove (204) is symmetrically opened on the support base (202).

3. The double-layer Bailey bridge support device for cast-in-place box girder of a bridge as described in claim 1, characterized in that: A screw barrel (208) is installed on the side plate (203). A push screw (209) is installed on the internal thread of the screw barrel (208). One end of the push screw (209) is in contact with the clamp plate (205), and a throttle (210) is installed on the other end of the push screw (209).

4. The double-layer Bailey bridge support device for cast-in-place box girder of a bridge as described in claim 2, characterized in that: The support base (202) has an internal movable groove (213), and two sliding grooves (204) are connected to the movable groove (213). Four negative pressure grooves (211) are evenly provided at the top of the movable groove (213), and sealing gaskets (212) are evenly installed at the top of the support base (202). The sealing gaskets (212) correspond one-to-one with the negative pressure grooves (211).

5. A double-layer Bailey bridge support device for cast-in-place box girder of a bridge as described in claim 4, characterized in that: A piston block (214) is movably installed inside the negative pressure groove (211). A bottom rod (216) is fixedly installed at the bottom end of the piston block (214). A connecting plate (217) is provided inside the movable groove (213). The connecting plate (217) is fixedly connected to the bottom rod (216). Connecting rods (218) are symmetrically hinged at both ends of the connecting plate (217). The ends of the two connecting rods (218) are respectively hinged to two sliders (207).

6. The double-layer Bailey bridge support device for cast-in-place box girder of a bridge as described in claim 1, characterized in that: The double-layer Bailey beam assembly (1) includes two beam frames (101) which are bolted together. A middle plate (102) is fixedly installed in the middle of the beam frame (101). The middle plate (102) divides the beam frame (101) into two frames, and a prism-shaped reinforcing frame (103) is installed in each frame.

7. A double-layer Bailey bridge support device for cast-in-place box girder of a bridge as described in claim 6, characterized in that: The two prismatic reinforcing frames (103) correspond to the two support seats (202) respectively. The bottom corners of the prismatic reinforcing frames (103) and the bottom of the prismatic reinforcing frames (103) and the beam frame (101) form three positioning angles (104).

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