A beam end expansion connecting device

Abstract

The utility model provides a kind of bailey beam sunhead extension connecting device, belong to bridge construction technical field.The bailey beam sunhead extension connecting device includes inclined brace and connecting device.The connecting device includes fixed frame, clamping piece and two sliding sleeves, the fixed frame is fixed with the inclined brace, the both sides of the fixed frame are formed with through hole and recess, the clamping piece includes clamping block, the both sides of the clamping block are fixed with connecting column, torsion spring is sleeved on the connecting column, the torsion spring is fixed between the clamping block and the through hole, the connecting column is rotatably connected inside the through hole, two the sliding sleeve is fixed in the top surface side of the fixed frame, limit piece is installed on two the sliding sleeve, clamping piece is installed on the recess.The utility model is used in the process can keep the stability of connection, simultaneously need not to be welded with bailey beam to the inclined brace, to facilitate repeated use to improve the flexibility of construction.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically, to a Bailey bridge head extension connection device. Background Technology

[0002] Bridge construction refers to the process of building a bridge according to its design specifications; it mainly includes bridge construction technology, construction organization, construction management, and construction quality.

[0003] Currently, during the construction of continuous rigid frame bridges, the outer formwork is usually quite high, requiring external diagonal bracing on both sides. When Bailey beams are used as the support distribution beams, they have the characteristic of being reusable. However, if high-temperature welding is used, they will no longer be allowed to be used because the properties of the structural steel will change due to high temperatures. In order to avoid welding the diagonal bracing directly to the Bailey beams and to enable the Bailey beams to be reused, it is necessary to propose a Bailey beam male head extension connection device to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a Bailey beam head extension connection device, which aims to improve the situation in continuous rigid frame bridges where the outer formwork is usually quite high and requires external diagonal bracing on both sides. When the support distribution beam is a Bailey beam, the Bailey beam has the characteristic of being reusable. However, if high-temperature welding is used, it will no longer be allowed to continue to be used because the properties of the structural steel will change due to high temperature. In order to avoid welding the diagonal bracing directly to the Bailey beam, this utility model addresses the issue of Bailey beams being reusable.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a Bailey beam male end extension connection device, including a diagonal brace and a connection device fixed to the diagonal brace, wherein the connection device is installed on the Bailey beam.

[0007] The connecting device includes a fixing frame, a snap-fit ​​component, and two sliding sleeves. The fixing frame is fixed to the diagonal brace. Through holes and grooves are formed on both sides of the fixing frame. The snap-fit ​​component includes a snap block. Connecting columns are fixed on both sides of the snap block. A torsion spring is sleeved on the connecting column. The torsion spring is fixed between the snap block and the through hole. The connecting column is rotatably connected inside the through hole. The snap block is snapped onto the Bailey beam. The two sliding sleeves are fixed to one side of the top surface of the fixing frame. Limiting components are installed on the two sliding sleeves. Clamping components are installed on the grooves.

[0008] In one embodiment of this utility model, the cross-section of the card block is triangular, a limiting plate is fixed on the card block, and a placement groove matching the limiting plate is formed at the upper end of the through hole.

[0009] In one embodiment of this utility model, the limiting member includes a rotating column and a threaded tube. A first threaded rod and a second threaded rod are respectively fixed at both ends of the rotating column. The first threaded rod and the second threaded rod rotatably pass through the sliding sleeve. The first threaded rod and the second threaded rod are threadedly connected to the threaded tube. The threaded tube is slidably connected to the inside of the sliding sleeve. A connecting plate is fixed at the end of the threaded tube. A limiting pin is fixed on one side of the connecting plate.

[0010] In one embodiment of this utility model, the inside of the fixing frame is provided with a circular hole that matches the limiting pin, and the limiting pin is inserted through the circular hole into the pin hole of the Bailey beam.

[0011] In one embodiment of this utility model, the cross-section of the rotating column is a regular hexagon, and the thread structures of the first threaded rod and the second threaded rod are arranged oppositely.

[0012] In one embodiment of this utility model, the clamping member includes a threaded post that rotatably passes through the groove. One end of the threaded post is keyed to a rotating handle, and the other end of the threaded post is threaded to a clamping plate. The clamping plate is slidably connected inside the groove and clamps both sides of the Bailey beam.

[0013] The beneficial effects of this utility model are as follows: The Bailey beam male head extension connection device obtained by the above design can be used by attaching the fixing frame to the Bailey beam. At this time, under the action of the torsion spring, the locking block can be locked on the Bailey beam. Then, by using a wrench to rotate the rotating column, the first threaded rod and the second threaded rod will rotate. This causes the threaded tube to move relative to each other, allowing the limiting pin to be inserted into the round hole of the Bailey beam for positioning. Then, by rotating the handle to rotate the threaded column, the clamping plate moves on the threaded column and clamps on both sides of the Bailey beam for further fixation. In this way, the stability of the connection can be maintained during use, and there is no need to weld the diagonal brace to the Bailey beam, which facilitates repeated use and improves the flexibility of construction. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the installation structure of the Bailey beam male head extension connection device provided in this utility model embodiment;

[0016] Figure 2An exploded view of the installation structure of the Bailey beam male head extension connection device provided for the embodiments of this utility model;

[0017] Figure 3 An exploded view of the Bailey beam male head extension connection device provided for an embodiment of this utility model.

[0018] Figure 4 This is a second-view exploded structural diagram of the Bailey beam male head extension connection device provided for an embodiment of this utility model.

[0019] In the diagram: 100-Diagonal brace; 200-Connecting device; 210-Fixing frame; 211-Through hole; 212-Groove; 220-Snap-fit ​​piece; 221-Snap-fit ​​block; 222-Connecting column; 223-Torsion spring; 224-Limiting plate; 230-Sliding sleeve; 240-Limiting piece; 241-Rotating column; 242-First threaded rod; 243-Second threaded rod; 244-Threaded tube; 245-Connecting plate; 246-Limiting pin; 250-Clamping piece; 251-Threaded column; 252-Rotating handle; 253-Clamping plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example

[0022] Please see Figures 1-4 This utility model provides a technical solution: a Bailey beam male end extension connection device, including a diagonal brace 100 and a connection device 200 fixed to the diagonal brace 100, the connection device 200 being installed on the Bailey beam.

[0023] Please see Figures 1-4The connecting device 200 includes a fixing frame 210, a snap-fit ​​component 220, and two sliding sleeves 230. The fixing frame 210 is fixed to the diagonal brace 100. Through holes 211 and grooves 212 are formed on both sides of the fixing frame 210. The snap-fit ​​component 220 includes a snap-fit ​​block 221. Connecting posts 222 are fixed on both sides of the snap-fit ​​block 221. Torsion springs 223 are sleeved on the connecting posts 222. The torsion springs 223 are fixed between the snap-fit ​​block 221 and the through holes 211. The connecting posts 222 are rotatably connected to the inside of the through holes 211. The snap-fit ​​block 221 is snapped onto the Bailey beam. The two sliding sleeves 230 are fixed to one side of the top surface of the fixing frame 210. Limiting components 240 are installed on the two sliding sleeves 230. Clamping components 250 are installed on the grooves 212.

[0024] The cross-section of the locking block 221 is triangular. A limiting plate 224 is fixed on the locking block 221. The upper end of the through hole 211 has a placement groove that matches the limiting plate 224. The limiting plate 224 is used to limit the locking block 221 and prevent it from rotating. At the same time, the upper end of the limiting plate 224 is tilted outward, which makes it easy to move by hand and thus facilitates disassembly and assembly.

[0025] The limiting component 240 includes a rotating column 241 and a threaded tube 244. A first threaded rod 242 and a second threaded rod 243 are fixed to both ends of the rotating column 241, respectively. The first threaded rod 242 and the second threaded rod 243 rotatably pass through the sliding sleeve 230. The first threaded rod 242 and the second threaded rod 243 are threadedly connected to the threaded tube 244, which is slidably connected to the interior of the sliding sleeve 230. A connecting plate 245 is fixed to the end of the threaded tube 244, and a limiting pin 246 is fixed to one side of the connecting plate 245. The fixing bracket 210 has a circular hole inside that matches the limiting pin 246, and the limiting pin 246 passes through the circular hole and is inserted into the pin hole of the Bailey beam. The rotating column 241 has a regular hexagonal cross section. The threaded structures of the first threaded rod 242 and the second threaded rod 243 are set oppositely. Here, the rotating column 241 can be easily rotated with a wrench. When the first threaded rod 242 and the second threaded rod 243 are rotated with a wrench, the threaded tube 244 can be moved relative to each other or in opposite directions at the same time, and then the limiting pin 246 is engaged in the round hole of the Bailey beam for positioning and installation.

[0026] The clamping member 250 includes a threaded post 251 that rotatably passes through a groove 212. One end of the threaded post 251 is keyed to a rotating handle 252, and the other end of the threaded post 251 is threaded to a clamping plate 253. The clamping plate 253 is slidably connected inside the groove 212 and clamps the two sides of the Bailey beam. By rotating the threaded post 251 through the rotating handle 252, the clamping plate 253 can be moved to clamp the two sides of the Bailey beam and remain stable. The interior of the clamping plate 253 has threaded holes that match the threaded post 251, which facilitates the back-and-forth movement of the clamping plate 253.

[0027] Specifically, the working principle of the Bailey beam male extension connection device is as follows: When in use, the fixing frame 210 is snapped onto the Bailey beam. At this time, under the action of the torsion spring 223, the locking block 221 can be snapped onto the Bailey beam. Then, the rotating column 241 is rotated by using a wrench, so that the first threaded rod 242 and the second threaded rod 243 rotate. This causes the threaded tube 244 to move relative to each other, so that the limiting pin 246 is inserted into the round hole of the Bailey beam for positioning. Then, the threaded column 251 is rotated by rotating the handle 252. This causes the clamping plate 253 to move on the threaded column 251 and clamp onto both sides of the Bailey beam for further fixation. In this way, the stability of the connection can be maintained during use, and there is no need to weld the diagonal brace 100 to the Bailey beam, which facilitates repeated use and improves the flexibility of construction.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A Bailey beam male-end extension connection device, comprising a diagonal brace (100) and a connection device (200) fixed to the diagonal brace (100), said connection device (200) being installed on the Bailey beam, characterized in that, The connecting device (200) includes a fixing frame (210), a snap-fit ​​component (220), and two sliding sleeves (230). The fixing frame (210) is fixed to the diagonal brace (100). Through holes (211) and grooves (212) are formed on both sides of the fixing frame (210). The snap-fit ​​component (220) includes a snap-fit ​​block (221). Connecting posts (222) are fixed on both sides of the snap-fit ​​block (221). Torsion springs (230) are sleeved on the connecting posts (222). 23) The torsion spring (223) is fixed between the locking block (221) and the through hole (211), the connecting column (222) is rotatably connected inside the through hole (211), the locking block (221) is locked onto the Bailey beam, the two sliding sleeves (230) are fixed on one side of the top surface of the fixing frame (210), the two sliding sleeves (230) are equipped with limiters (240), and the groove (212) is equipped with clamping members (250).

2. The beam end development connection device according to claim 1, characterized in that The cross-section of the card block (221) is triangular, and a limiting plate (224) is fixed on the card block (221). The upper end of the through hole (211) has a placement groove that matches the limiting plate (224).

3. The beam end development connection device of claim 1, wherein, The limiting component (240) includes a rotating column (241) and a threaded tube (244). The two ends of the rotating column (241) are respectively fixed with a first threaded rod (242) and a second threaded rod (243). The first threaded rod (242) and the second threaded rod (243) rotatably pass through the sliding sleeve (230). The first threaded rod (242) and the second threaded rod (243) are threadedly connected to the threaded tube (244). The threaded tube (244) is slidably connected to the inside of the sliding sleeve (230). The end of the threaded tube (244) is fixed with a connecting plate (245). One side of the connecting plate (245) is fixed with a limiting pin (246).

4. The beam-sill male head extension connecting device according to claim 3, characterized in that, The fixing frame (210) has a circular hole inside that matches the limiting pin (246), and the limiting pin (246) passes through the circular hole and is inserted into the pin hole of the Bailey beam.

5. The Bailey beam male end extension connection device according to claim 3, characterized in that, The rotating column (241) has a regular hexagonal cross section, and the thread structures of the first threaded rod (242) and the second threaded rod (243) are arranged oppositely.

6. The Bailey beam male end extension connection device according to claim 1, characterized in that, The clamping member (250) includes a threaded post (251) that rotatably passes through the groove (212). One end of the threaded post (251) is keyed to a rotating handle (252), and the other end of the threaded post (251) is threaded to a clamping plate (253). The clamping plate (253) is slidably connected inside the groove (212) and clamps the two sides of the Bailey beam.

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