Shoulder pole beam for bridge beam bottom construction

Abstract

The utility model discloses a carrying pole beam for bridge beam bottom construction, relates to the technical field of bridge engineering, and provides the following scheme aiming at the problems proposed in the background technology: the carrying pole beam comprises a carrying pole beam assembly, the carrying pole beam assembly comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with two side plates, and the upper surfaces of the two side plates are fixedly connected with a top plate; a limiting inserting groove is formed in the upper surface of the bottom plate, two limiting inserting plates are inserted into the inner wall of the limiting inserting groove, and clamping plate heads are fixedly connected to the upper surfaces of the two limiting inserting plates. Through the arrangement of the clamping plate head, the limiting inserting groove, the limiting inserting plate, the locking inserting pin and the first inserting pin holes, in the using process, the bearing capacity of the clamping plate head can be improved after the limiting inserting plate is inserted into the limiting inserting groove, meanwhile, the first inserting pin holes can be used for being suitable for the situation that the main longitudinal beam is different in section size, and the using effect is good. And the two clamping plate heads are always clamped on the lower flange plate of the main longitudinal beam, so that the stable effect of the construction platform is ensured.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, and in particular to a flat beam for bridge beam bottom construction. Background Technology

[0002] A spreader beam is a beam structure shaped like a spreader beam, whose main function is to bear the weight. Currently, when constructing bridges at the bottom of the beams, a construction platform is usually installed to facilitate the construction work of workers. Therefore, spreader beams are needed as a structure to improve the load-bearing capacity and enhance the stability of the construction platform.

[0003] Most existing spreader beams are fixedly installed on the platform frame during use, and their position relative to the lower flange of the main longitudinal beam remains fixed without any possibility of change. This means that the position of the platform frame on the lower flange can only be moved to a fixed position, and cannot be adjusted according to different cross-sectional dimensions of the lower flange, which has certain limitations and room for improvement. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a flat beam for bridge beam bottom construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bridge beam under-beam construction spreader beam includes a spreader beam assembly. The spreader beam assembly includes a base plate, two side plates fixedly connected to the upper surface of the base plate, and a top plate fixedly connected to the upper surface of each of the two side plates. A limit slot is formed on the upper surface of the base plate, and two limit plates are inserted into the inner wall of the limit slot. A locking plate head is fixedly connected to the upper surface of each of the two limit plates. Several first pin holes are formed on the front of each of the two side plates, and second pin holes are formed on the front of each of the two locking plate heads. A locking pin is inserted into the inner wall of each of the first pin holes. Two locking seats are fixedly connected to the lower surface of the base plate, and a locking groove is formed on the lower surface of each of the two locking seats. A third pin hole is formed on the side of each of the two locking seats.

[0007] A strip frame is fixedly connected to the upper surface of the base plate. Positioning grooves are provided on both the left and right sides of the strip frame. Positioning plates are fixedly connected to the inner walls of the two positioning grooves by locking bolts. Sleeves are fixedly connected to the opposite sides of the two positioning plates. Hydraulic cylinders are fixedly connected to the inner walls of the sleeves. Connecting rods are fixedly connected to the output ends of the two hydraulic cylinders. A U-shaped top plate is fixedly connected to the end of the connecting rod away from the hydraulic cylinder. Strip top grooves are provided on the opposite sides of the two U-shaped top plates.

[0008] Preferably, the two side plates and the top plate are symmetrically arranged on the upper surface of the bottom plate, and the distance between the two top plates is the same as the thickness of the card head.

[0009] Preferably, the first pin hole is adapted to the second pin hole, the locking pin is adapted to the second pin hole, and the locking pin can pass through the first pin hole and the second pin hole respectively, so as to lock the position of the side plate and the card head.

[0010] Preferably, the inner walls of both positioning grooves are provided with four threaded grooves that are compatible with the locking bolts, so that the hydraulic cylinder can be easily removed using the locking bolts and positioning plates.

[0011] Preferably, the positions of the two U-shaped top plates correspond to the positions of the two card heads, and the two U-shaped top plates can make the strip top groove lock onto the surface of the card head after being moved.

[0012] Preferably, the size of the strip-shaped top groove is greater than the thickness of the card head, and the strip-shaped top groove can be locked onto the surface of the card head and squeeze the card head to move to the side.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By setting up the card plate head, limit slot, limit insert plate, locking pin, and first pin hole, the load-bearing capacity of the card plate head can be improved by inserting the limit insert plate into the limit slot during use. At the same time, the multiple first pin holes can be used to adapt to different cross-sectional dimensions of the main longitudinal beam, so that the two card plate heads are always locked on the lower flange plate of the main longitudinal beam, ensuring the stability of the construction platform.

[0015] 2. The strip frame, hydraulic cylinder, connecting rod, U-shaped top plate and strip top groove facilitate the quick disengagement of the two clamping heads from the surface of the lower flange plate of the main longitudinal beam without the need for manual operation by the staff. This not only improves the disengagement efficiency of the clamping heads, but also ensures safety. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a spreader beam for bridge beam bottom construction proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the clamping plate head of a flat beam for bridge beam bottom construction proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the front section of a spreader beam for bridge beam bottom construction proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the U-shaped top plate structure of a flat beam for bridge bottom construction proposed in this utility model.

[0020] In the diagram: 1. Base plate; 2. Side plate; 3. Top plate; 4. Limiting slot; 5. Limiting insert plate; 6. Card plate head; 7. First pin hole; 8. Second pin hole; 9. Locking pin; 10. Card seat; 11. Third pin hole; 12. Strip frame; 13. Locking bolt; 14. Positioning plate; 15. Sleeve; 16. Hydraulic cylinder; 17. Connecting rod; 18. U-shaped top plate; 19. Strip top groove. Detailed Implementation

[0021] 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.

[0022] Example 1, referring to Figure 1 and Figure 2 A bridge beam under-beam construction spreader beam includes a spreader beam assembly. The spreader beam assembly includes a base plate 1. Two side plates 2 are fixedly connected to the upper surface of the base plate 1. A top plate 3 is fixedly connected to the upper surface of each of the two side plates 2. The two side plates 2 and the top plate 3 are symmetrically arranged on the upper surface of the base plate 1. A limit slot 4 is opened on the upper surface of the base plate 1. Two limit plates 5 are inserted into the inner wall of the limit slot 4. A clamping head 6 is fixedly connected to the upper surface of each of the two limit plates 5. The distance between the two top plates 3 is the same as the thickness of the clamping head 6.

[0023] The front of each of the two side plates 2 is provided with several first pin holes 7, and the front of each of the two card heads 6 is provided with second pin holes 8. A locking pin 9 is inserted into the inner wall of the first pin hole 7. The first pin hole 7 and the second pin hole 8 are adapted to each other, and the locking pin 9 and the second pin hole 8 are adapted to each other. Two card seats 10 are fixedly connected to the lower surface of the base plate 1. The lower surface of each of the two card seats 10 is provided with a card groove, and the side of each of the two card seats 10 is provided with a third pin hole 11.

[0024] The base plate 1 is fixedly installed above the platform frame, and the two clamping heads 6 can be clamped on the side of the lower flange of the main longitudinal beam. The two clamping heads 6 can provide the overall load-bearing capacity of the platform frame, thereby improving the stability of the construction platform during construction. In addition, the multiple first pin holes 7 and locking pins 9 cooperate with the second pin holes 8 on the surface of the clamping heads 6, which can be adapted to different cross-sectional dimensions of the main longitudinal beam, thus providing high flexibility.

[0025] Example 2: Refer to Figure 1 , Figure 3 and Figure 4A strip frame 12 is fixedly connected to the upper surface of the base plate 1. Positioning grooves are provided on both the left and right sides of the strip frame 12. Positioning plates 14 are fixedly connected to the inner walls of the two positioning grooves by locking bolts 13. Four threaded grooves that are compatible with the locking bolts 13 are provided on the inner walls of the two positioning grooves. Sleeves 15 are fixedly connected to the opposite sides of the two positioning plates 14. Hydraulic cylinders 16 are fixedly connected to the inner walls of the sleeves 15. Connecting rods 17 are fixedly connected to the output ends of the two hydraulic cylinders 16. A U-shaped top plate 18 is fixedly connected to the end of the connecting rod 17 away from the hydraulic cylinder 16. The positions of the two U-shaped top plates 18 correspond to the positions of the two clamping heads 6. Strip top grooves 19 are provided on the opposite sides of the two U-shaped top plates 18. The size of the strip top grooves 19 is larger than the thickness of the clamping heads 6.

[0026] After removing the two locking pins 9, open the two hydraulic cylinders 16. The two hydraulic cylinders 16 can drive the two U-shaped top plates 18 to move towards the back side through the connecting rod 17 until the two strip top grooves 19 contact the surface of the clamping head 6. At this time, the strip top grooves 19 can press against the surface of the clamping head 6. After the two hydraulic cylinders 16 continue to start, they can drive the two clamping heads 6 to continue to move towards the back side until the two clamping heads 6 disengage from the lower flange plate. No manual operation by the staff is required, which improves the disengagement efficiency and safety.

[0027] Working principle: First, the two clamping heads 6 can be used as the main load-bearing components of the construction platform. During operation, the two clamping heads 6 can clamp the lower flange plate of the main longitudinal beam, thereby supporting the construction platform. Multiple first pin holes 7 and locking pins 9 can cooperate with the second pin holes 8 on the clamping heads 6 to accommodate various changes in the cross-sectional dimensions of the main longitudinal beam, offering high flexibility. Furthermore, the use of a limiting plate 5 inserted into a limiting slot 4 to auxiliary lock the clamping heads 6 further enhances their load-bearing capacity and improves the safety of the construction platform during use. The two card holders 10 can connect the wheel set, which can be used to drive the platform frame to move longitudinally relative to the spreader beam assembly. When it is necessary to detach the two card heads 6 from the lower flange plate of the main longitudinal beam, after removing the locking pin 9, the two hydraulic cylinders 16 are opened. The two hydraulic cylinders 16 can drive the two U-shaped top plates 18 to move towards the opposite side through the connecting rod 17, thereby pressing the surfaces of the two card heads 6 against each other through the strip top groove 19. At this time, the hydraulic cylinders 16 can drive the two card heads 6 to move towards the opposite side, thereby quickly detaching the card heads 6 from the lower flange plate without the need for manual operation by the staff, thus improving the detachment efficiency.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spreader beam for bridge girder bottom construction, comprising a spreader beam assembly, characterized in that, The flat beam assembly includes a base plate (1), two side plates (2) are fixedly connected to the upper surface of the base plate (1), a top plate (3) is fixedly connected to the upper surface of each side plate (2), a limit slot (4) is opened on the upper surface of the base plate (1), two limit plates (5) are inserted into the inner wall of the limit slot (4), a locking plate head (6) is fixedly connected to the upper surface of each limit plate (5), several first pin holes (7) are opened on the front of each side plate (2), a second pin hole (8) is opened on the front of each locking plate head (6), a locking pin (9) is inserted into the inner wall of each first pin hole (7), two card seats (10) are fixedly connected to the lower surface of the base plate (1), a card groove is opened on the lower surface of each card seat (10), and a third pin hole (11) is opened on the side of each card seat (10). A strip frame (12) is fixedly connected to the upper surface of the base plate (1). Positioning grooves are provided on both the left and right sides of the strip frame (12). Positioning plates (14) are fixedly connected to the inner walls of the two positioning grooves by locking bolts (13). Sleeves (15) are fixedly connected to the opposite sides of the two positioning plates (14). Hydraulic cylinders (16) are fixedly connected to the inner walls of the sleeves (15). Connecting rods (17) are fixedly connected to the output ends of the two hydraulic cylinders (16). A U-shaped top plate (18) is fixedly connected to the end of the connecting rod (17) away from the hydraulic cylinder (16). Strip top grooves (19) are provided on the opposite sides of the two U-shaped top plates (18).

2. A spreader beam for bridge girder bottom construction according to claim 1, characterized in that, The two side plates (2) and the top plate (3) are symmetrically arranged on the upper surface of the bottom plate (1), and the distance between the two top plates (3) is the same as the thickness of the card head (6).

3. A spreader beam for bridge girder bottom construction according to claim 1, characterized in that, The first pin hole (7) is adapted to the second pin hole (8), and the locking pin (9) is adapted to the second pin hole (8).

4. A spreader beam for bridge girder bottom construction according to claim 1, characterized in that, The inner walls of both positioning grooves are provided with four threaded grooves that are compatible with the locking bolts (13).

5. A spreader beam for bridge girder bottom construction according to claim 1, characterized in that, The positions of the two U-shaped top plates (18) correspond to the positions of the two card heads (6).

6. A spreader beam for bridge girder bottom construction according to claim 1, characterized in that, The dimensions of the strip top groove (19) are greater than the thickness of the card plate head (6).

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