Double-layered bali adjustable height positioning device for wide box girder

Abstract

The utility model relates to bridge construction technical field discloses a double -deck bailey adjustable height positioning device for wide box girder, including double -deck bailey beam subassembly, the bottom support subassembly is provided with the bottom support subassembly at the bottom of double -deck bailey beam subassembly, and the bottom support subassembly includes the base, and the top of base is installed with U type joint piece, and U type joint piece is used for adjusting the installation height of double -deck bailey beam subassembly, and the both sides symmetrical of U type joint piece are provided with two U type bracket, and the bottom of U type bracket is hinged and is installed with support connecting rod, the utility model discloses, and the middle part board body on double -deck bailey beam subassembly is equidistant and is provided with a plurality of support grooves, and the support groove can be with the support clamping plate on U type joint frame clamping, thereby realizing height adjustment, and simultaneously U type bracket can support the both sides of the bottom of double -deck bailey beam subassembly, and U type bracket is fixed through the clamping of positioning block, improves the support stability of double -deck bailey beam subassembly.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, specifically a double-layer Bailey adjustable height positioning device for wide box girders. 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 the Bailey bridge, adjusting the clamping and fixing height of the Bailey bridge causes the bottom support of the Bailey bridge to disappear, thereby reducing the support effect. 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 adjustable height positioning device for wide box girders, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a double-layer Bailey adjustable height positioning device for wide box girders, comprising a double-layer Bailey beam assembly, wherein a bottom support assembly is provided at the bottom end of the double-layer Bailey beam assembly; The bottom support assembly includes a base, and a U-shaped clip is installed at the top of the base. The U-shaped clip is used to adjust the installation height of the double-layer Bailey beam assembly. The U-shaped connector has two U-shaped brackets symmetrically arranged on both sides. The bottom of the U-shaped bracket is hinged with a support rod. The bottom of the two support rods is located on the side of the two U-shaped brackets that are far apart from each other. The bottom of the two support rods is hinged to the base. The two ends of the U-shaped bracket are provided with snap-fit ​​fasteners.

[0005] Preferably, the U-shaped connector includes a U-shaped connector frame fixedly installed at the top center of the base, with side boxes symmetrically installed on both sides of the U-shaped connector frame, and a support plate slidably installed inside the side boxes.

[0006] Preferably, a pull rod is fixedly installed on the side of the support plate away from the U-shaped clip frame, and springs are symmetrically installed on the side of the support plate away from the U-shaped clip frame, with one end of the springs fixedly connected to the inner wall of the end of the side box.

[0007] Preferably, the snap-fit ​​fastener includes vertical plates symmetrically and equidistantly arranged at both ends of the U-shaped bracket, the height of each vertical plate decreasing sequentially along the side closest to the U-shaped snap-fit ​​bracket, and positioning grooves symmetrically opened at both ends of the U-shaped bracket.

[0008] Preferably, a fixing cylinder is fixedly installed on the vertical plate, a positioning block is movably installed inside the fixing cylinder, a screw cylinder is installed at the end of the fixing cylinder, a screw rod is installed in the internal thread of the screw cylinder, and the positioning block is engaged in the positioning groove.

[0009] Preferably, the double-layer Bailey beam assembly includes two beam frames, which are bolted together. The two beam frames are located inside the U-shaped fastener and two U-shaped brackets, and the bottom wall of the beam frame contacts the inner bottom wall of the U-shaped bracket.

[0010] Preferably, a central plate is fixedly installed in the middle of the beam frame, and support grooves are provided on the sides of the two central plates that are far apart from each other. Two prismatic reinforcing frames are symmetrically installed on the inner side of the beam frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model features multiple support slots evenly spaced on the central plate of the double-layer Bailey beam assembly. These support slots can engage with support plates on the U-shaped bracket to achieve height adjustment. Meanwhile, the U-shaped bracket supports the bottom sides of the double-layer Bailey beam assembly, and the U-shaped bracket is fixed by positioning blocks to improve the support stability of the double-layer Bailey beam assembly. This new type of structure connects to the base via two U-shaped brackets and supporting rods. The bottom ends of the two supporting rods are located on opposite sides of the two U-shaped brackets. When the height of the double-layer Bailey beam assembly is adjusted, the support span of the two U-shaped brackets on the double-layer Bailey beam assembly increases as the height of the double-layer Bailey beam assembly increases, thereby improving the support stability 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 structure of the double-layer Bailey adjustable height positioning device for wide box girders 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 U-shaped clip structure of this utility model; Figure 5 This is a schematic diagram of the snap-fit ​​fastener structure 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. Support groove; 2. Bottom support assembly; 201. Base; 202. U-shaped clip; 2021. U-shaped clip frame; 2022. Side box; 2023. Support plate; 2024. Tie rod; 2025. Spring; 203. U-shaped bracket; 204. Support connecting rod; 205. Clip fastener; 2051. Positioning groove; 2052. Vertical plate; 2053. Fixing cylinder; 2054. Positioning block; 2055. Screw barrel; 2056. Screw. 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 an adjustable height positioning device for a double-layer Bailey beam for wide box girders, comprising a double-layer Bailey beam assembly 1, wherein a bottom support assembly 2 is provided at the bottom end 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. Support grooves 104 are provided on the opposite sides of the two central plates 102. Two prismatic reinforcing frames 103 are symmetrically installed on the inner side of the beam frame 101.

[0017] The bottom support assembly 2 includes a base 201, with a U-shaped connector 202 installed at the top of the base 201. Two beam frames 101 are located inside the U-shaped connector 202 and two U-shaped brackets 203. The U-shaped connector 202 is used to adjust the installation height of the double-layer Bailey beam assembly 1.

[0018] Two U-shaped brackets 203 are symmetrically arranged on both sides of the U-shaped connector 202. The bottom wall of the beam frame 101 contacts the inner bottom wall of the U-shaped bracket 203. Supporting rods 204 are hinged to the bottom end of the U-shaped bracket 203. The U-shaped brackets 203 can support the bottom sides of the double-layer Bailey beam assembly 1. The U-shaped brackets 203 are fixed by positioning blocks 2054 to improve the support stability of the double-layer Bailey beam assembly 1. The bottom ends of the two supporting rods 204 are located on the side of the two U-shaped brackets 203 that are far apart from each other. The bottom ends of 04 are hinged to the base 201. The two U-shaped brackets 203 are connected to the base 201 through the support rods 204. The bottom ends of the two support rods 204 are located on the opposite sides of the two U-shaped brackets 203. When the height of the double-layer Bailey beam assembly 1 is adjusted, as the height of the double-layer Bailey beam assembly 1 increases, the support span of the two U-shaped brackets 203 on the double-layer Bailey beam assembly 1 increases accordingly, thereby improving the support stability of the double-layer Bailey beam assembly 1. The two ends of the U-shaped brackets 203 are provided with snap-fit ​​fasteners 205.

[0019] The U-shaped connector 202 includes a U-shaped connector frame 2021 fixedly installed at the top center of the base 201. Side boxes 2022 are symmetrically installed on both sides of the U-shaped connector frame 2021. A support plate 2023 is slidably installed inside the side box 2022. The middle plate 102 of the double-layer Bailey beam assembly 1 has multiple support slots 104 equidistantly opened. The support slots 104 can engage with the support plate 2023 on the U-shaped connector frame 2021 to achieve height adjustment. A pull rod 2024 is fixedly installed on the side of the support plate 2023 away from the U-shaped connector frame 2021. Springs 2025 are symmetrically installed on the side of the support plate 2023 away from the U-shaped connector frame 2021. One end of the spring 2025 is fixedly connected to the inner wall of the end of the side box 2022.

[0020] The snap-fit ​​fastener 205 includes vertical plates 2052 symmetrically and equidistantly arranged at both ends of the U-shaped bracket 203. The height of each vertical plate 2052 decreases sequentially along the side closest to the U-shaped snap-fit ​​bracket 2021. Positioning grooves 2051 are symmetrically opened at both ends of the U-shaped bracket 203. A fixing cylinder 2053 is fixedly installed on the vertical plate 2052. A positioning block 2054 is movably installed inside the fixing cylinder 2053. A screw cylinder 2055 is installed at the end of the fixing cylinder 2053. A screw rod 2056 is installed in the internal thread of the screw cylinder 2055. The positioning block 2054 is snapped into the positioning groove 2051. Each vertical plate 2052 corresponds to a support groove 104.

[0021] Working principle: In use, the double-layer Bailey beam assembly 1 is first placed inside the U-shaped snap-fit ​​202 and the two U-shaped brackets 203, and the position of the U-shaped snap-fit ​​202 corresponds to the middle plate 102, so that the two U-shaped brackets 203 can provide lateral support for the double-layer Bailey beam assembly 1. At the same time, the support plate 2023 on the U-shaped snap-fit ​​202 is snapped into the support groove 104 at the corresponding height of the middle plate 102 to snap and fix the double-layer Bailey beam assembly 1. When adjusting the installation height of the double-layer Bailey beam assembly 1, after disengaging the support plate 2023 from the support groove 104, the height of the double-layer Bailey beam assembly 1 is adjusted. After adjusting to a suitable height, the support plate 2023 is inserted into the corresponding support groove 104 to complete the locking and fixing. During the height adjustment of the double-layer Bailey beam assembly 1, the U-shaped bracket 203 is moved along the length direction of the double-layer Bailey beam assembly 1 via the support connecting rod 204. As the height of the double-layer Bailey beam assembly 1 increases... As the height is increased, the distance between the two U-shaped brackets 203 continuously increases, so that when the center of gravity of the double-layer Bailey beam assembly 1 is at a higher position, the support span of the two U-shaped brackets 203 increases accordingly, improving support stability. At the same time, the position of the vertical plate 2052 corresponds one-to-one with the support groove 104, so that when the U-shaped bracket 203 is snapped into place, it can be aligned with one of the vertical plates 2052, and the positioning block 2054 can be snapped into the positioning groove 2051 to fix the U-shaped bracket 203.

Claims

1. A double-layer Bailey adjustable height positioning device for wide box girders, comprising a double-layer Bailey beam assembly (1), characterized in that: The bottom end 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), and a U-shaped clip (202) is installed on the top of the base (201). The U-shaped clip (202) is used to adjust the installation height of the double-layer Bailey beam assembly (1). Two U-shaped brackets (203) are symmetrically arranged on both sides of the U-shaped bracket (202). Support rods (204) are hinged to the bottom of the U-shaped brackets (203). The bottom ends of the two support rods (204) are located on the side of the two U-shaped brackets (203) that are far apart from each other. The bottom ends of the two support rods (204) are hinged to the base (201). Snap-fit ​​fasteners (205) are provided at both ends of the U-shaped brackets (203).

2. The adjustable height positioning device for a double-layer Bailey bridge for wide box girders according to claim 1, characterized in that: The U-shaped connector (202) includes a U-shaped connector frame (2021) fixedly installed at the top center of the base (201), and side boxes (2022) are symmetrically installed on both sides of the U-shaped connector frame (2021). A support plate (2023) is slidably installed inside the side box (2022).

3. The adjustable height positioning device for a double-layer Bailey bridge for wide box girders according to claim 2, characterized in that: A pull rod (2024) is fixedly installed on the side of the support plate (2023) away from the U-shaped card holder (2021), and springs (2025) are symmetrically installed on the side of the support plate (2023) away from the U-shaped card holder (2021). One end of the spring (2025) is fixedly connected to the inner wall of the end of the side box (2022).

4. The adjustable height positioning device for a double-layer Bailey bridge for wide box girders according to claim 1, characterized in that: The snap-fit ​​fastener (205) includes vertical plates (2052) symmetrically and equidistantly arranged at both ends of the U-shaped bracket (203). The height of each vertical plate (2052) decreases sequentially along the side closest to the U-shaped snap-fit ​​bracket (2021). Positioning grooves (2051) are symmetrically opened at both ends of the U-shaped bracket (203).

5. The adjustable height positioning device for a double-layer Bailey bridge for wide box girders according to claim 4, characterized in that: A fixed cylinder (2053) is fixedly installed on the vertical plate (2052). A positioning block (2054) is movably installed inside the fixed cylinder (2053). A screw cylinder (2055) is installed at the end of the fixed cylinder (2053). A screw rod (2056) is installed in the internal thread of the screw cylinder (2055). The positioning block (2054) is inserted into the positioning groove (2051).

6. The double-layer Bailey adjustable height positioning device for wide box girders according to claim 1, characterized in that: The double-layer Bailey beam assembly (1) includes two beam frames (101), which are bolted together. The two beam frames (101) are located inside the U-shaped snap-fit ​​(202) and the two U-shaped brackets (203), and the bottom wall of the beam frame (101) is in contact with the inner bottom wall of the U-shaped bracket (203).

7. A double-layer Bailey adjustable height positioning device for wide box girders according to claim 6, characterized in that: A central plate (102) is fixedly installed in the middle of the beam frame (101). Support grooves (104) are provided on the side of the two central plates (102) that are far apart from each other. Two rhomboid reinforcing frames (103) are symmetrically installed on the inner side of the beam frame (101).

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