Positioning splicing type steel box girder

Abstract

The utility model belongs to the technical field of steel box girder splicing, and particularly relates to a positioning splicing type steel box girder which comprises a steel box girder body. A connecting mechanism is arranged on the inner surface of the steel box girder body, a splicing mechanism is arranged on the inner side of the steel box girder body, a positioning mechanism is arranged on the inner side of the splicing mechanism, the splicing mechanism comprises a connecting cylinder, handles are fixed to the two ends of the cross-shaped supporting frame, threaded rods are evenly and symmetrically fixed to the inner side of the cross-shaped supporting frame, and the cross-shaped supporting frame is fixedly connected with the connecting cylinder. Limiting plates are fixed to the ends, close to the threaded cylinders, of the fixing rods, hexagonal studs are fixed to one ends of the threaded cylinders, fixing holes are symmetrically formed in the surfaces of the two sides of the steel box girder bodies, and under cooperation of the connecting cylinders, the two steel box girder bodies are combined, the hexagonal studs are rotated to drive the threaded cylinders to rotate, the fixing rods are inserted into the inner sides of the fixing holes in a penetrating mode, and then the steel box girder bodies are fixed. The connecting cylinder is fixedly connected with the steel box girder body, at the moment, the connecting cylinder can support the steel box girder, and the problem that the connecting position of an existing steel box girder is prone to breakage due to stress is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box girder splicing, in particular to a positioning and splicing type steel box girder. Background Technique

[0002] A steel box girder, because its shape is similar to a box, is called a steel box girder, and can also be called a steel plate box girder. It is usually applied to long-span bridges to support the bridge deck. In order to facilitate the installation of the steel box girder without affecting its supporting capacity, the steel box girder is usually of a modular structure to improve the efficiency of its butt joint installation.

[0003] A positioning and splicing type steel box girder with the publication number of CN220977650U takes the steel box girder as the main body, and a splicing structure is arranged between the two side steel box girders. The splicing structure is composed of a fastener one, a fastener two and a hinge frame. A fastener one is fixed on the side wall of the steel box girder, a fastener two is fixed on the side wall of the steel box girder, a hinge frame is fixed on the side wall of the steel box, the hinge frame is connected with a hook through a suspension member, the hinge frame is connected with a rotating assembly through a rod one, the hook is fixed on the side wall of the steel box girder, the fastener one is composed of a slider one and a chute one, the slider one is fixed on the side wall of the steel box girder, and a chute one is arranged on the side wall of the steel box girder. The fastener two is composed of a fixed block one and a slider two. Through the cooperation of the fastener one, the fastener two and the hinge frame, when installing the steel box girder, each steel box girder is connected in sequence, and the operation in the installation process is simple, which can improve the docking efficiency of the steel box girder.

[0004] There are still problems in the above-mentioned positioning and splicing type steel box girder. During the use of the steel box girder, the connection position is more fragile than the beam body. During the use process, it is easy to be stressed and broken, resulting in the steel box girder being unable to play a supporting role. Therefore, a positioning and splicing type steel box girder is proposed. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, during the use of the steel box girder on the market, the connection position is more fragile than the beam body. During the use process, it is easy to be stressed and broken, resulting in the steel box girder being unable to play a supporting role. The utility model proposes a positioning and splicing type steel box girder.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a positioning and splicing type steel box girder described in the utility model includes a steel box girder body; a connection mechanism is arranged on the inner surface of the steel box girder body, a splicing mechanism is arranged inside the steel box girder, a positioning mechanism is arranged inside the splicing mechanism, and a connection cylinder is slidably installed inside the steel box girder.

[0007] Preferably, the splicing mechanism includes a connecting cylinder. Inside the connecting cylinder, a cross-shaped support frame is fixed. At both ends of the cross-shaped support frame, handles are fixed. Inside the cross-shaped support frame, threaded rods are evenly and symmetrically fixed. On the threaded rods, threaded cylinders are rotatably installed. At one end of the threaded cylinder, a fixed rod is fixed. Near one end of the threaded cylinder, a limiting plate is fixed to the fixed rod. At one end of the threaded cylinder, a hexagonal stud is fixed. On both side surfaces of the steel box girder body, fixing holes are symmetrically opened. One end of the fixed rod slidably penetrates inside the fixing hole. The structure of the connecting cylinder enables it to support at the connection position of the steel box girder. At the same time, with the cooperation of the cross-shaped support frame, a stable supporting effect can be achieved, preventing the connection position of the steel box girder from being fractured due to force.

[0008] Preferably, the positioning mechanism includes a plug rod. At one end of the plug rod, a limiting cap is fixed. Between the limiting cap and the connecting cylinder, a spring is fixedly connected, and the spring is sleeved on the plug rod. On the inner bottom end of the steel box girder body, positioning holes are symmetrically opened. One end of the plug rod is inserted and installed inside the positioning hole. Inside the steel box girder body, T-shaped slide rails are symmetrically fixed. By using the plug rod in cooperation with the positioning hole, the connecting cylinder can be accurately moved to the required position before and after installation, making it more convenient to use.

[0009] Preferably, the connecting mechanism ensures the T-shaped slide rails. On the T-shaped slide rails, a connecting cylinder is slidably installed through a limiting groove. On both sides at one end of the steel box girder body, clamping grooves are opened. At both ends symmetrically away from the clamping groove of the steel box girder body, clamping blocks are fixed. One side of the steel box girder body is buckled inside the clamping groove of the other side of the steel box girder body through the cooperation of the clamping blocks. Using the clamping groove and the clamping block, which are simple geometric shapes, is convenient for production and processing. At the same time, it can facilitate the accurate splicing of the connection of the steel box girder.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. Through the structural design of a positioning and splicing type steel box girder of the present utility model, by setting the splicing mechanism, the connecting cylinder is drawn out from one end inside the steel box girder body. Then, with the cooperation of the connecting cylinder, the two steel box girder bodies are combined and sleeved on the connecting cylinder. At this time, a tool can be used to rotate the hexagonal stud inside the connecting cylinder, driving the threaded cylinder to rotate. Thus, with the cooperation of the threaded rod, the fixed rod extends from the surface of the connecting cylinder and penetrates inside the fixing hole, thereby fixedly connecting the connecting cylinder and the steel box girder body. At the same time, the limiting plate contacts the inner surface of the connecting cylinder and presses against the inner wall of the connecting cylinder, making it closely fit inside the steel box girder body. At this time, with the cooperation of the cross-shaped support frame, the connecting cylinder can play a stable supporting role at the splicing position of the steel box girder body, preventing the splicing position of the steel box girder body from being fractured due to force, and solving the problem that the connection of the existing steel box girder is easily fractured under force.

[0012] 2. Through the structural design of a positioning and splicing type steel box girder, by setting a positioning mechanism, before use, the connecting cylinder is located at the center position inside the steel box girder body. At this time, the insertion rod is inserted inside the positioning hole at the center of the inner side of the steel box girder body. When splicing, the connecting cylinder is pulled out. At this time, the steel box girder body pushes the insertion rod to extract it from the inside of the positioning hole. When the connecting cylinder moves to the splicing position, the spring pulls the insertion rod to extend by its own elastic force and inserts it inside the positioning holes at both ends of the inner side of the steel box girder body, ensuring that the connecting cylinder can accurately move to the splicing position, thus facilitating subsequent splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a schematic three-dimensional structure view of the overall front view;

[0015] Figure 2 It is a sectional view of the three-dimensional structure of the splicing mechanism from the side;

[0016] Figure 3 It is a sectional view of the three-dimensional structure of the positioning mechanism from the side;

[0017] Figure 4 It is a sectional view of the three-dimensional structure of the connecting mechanism from the rear;

[0018] Figure 5 It is a schematic three-dimensional structure view of a partial structure from the top.

[0019] In the figure: 1, steel box girder body; 2, connecting cylinder; 3, limit groove; 4, cross support frame; 5, threaded rod; 6, threaded cylinder; 7, fixed rod; 8, limit plate; 9, hexagonal stud; 10, fixed hole; 11, insertion rod; 12, limit cap; 13, spring; 14, positioning hole; 15, handle; 16, T-shaped slide rail; 17, card slot; 18, card block; 19, internal hexagonal hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] Please refer toFigures 1-4 As shown, a positioning and splicing steel box girder includes a steel box girder body 1; a connecting mechanism is arranged on the inner surface of the steel box girder body 1, a splicing mechanism is arranged inside the steel box girder body 1, a positioning mechanism is arranged inside the splicing mechanism, and a connecting cylinder 2 is slidably installed inside the steel box girder body 1;

[0022] Please refer to Figure 2 As shown, the splicing mechanism includes a connecting cylinder 2, a cross support frame 4 is fixed inside the connecting cylinder 2, handles 15 are fixed at both ends of the cross support frame 4, threaded rods 5 are symmetrically and evenly fixed inside the cross support frame 4, a threaded cylinder 6 is rotatably installed on the threaded rods 5, a fixing rod 7 is fixed at one end of the threaded cylinder 6, a limiting plate 8 is fixed at one end of the fixing rod 7 close to the threaded cylinder 6, a hexagonal stud 9 is fixed at one end of the threaded cylinder 6, fixing holes 10 are symmetrically formed on both side surfaces of the steel box girder body 1, one end of the fixing rod 7 is slidably inserted inside the fixing hole 10, and inserting rods 11 are symmetrically and slidably inserted at the bottom end inside the connecting cylinder 2; during work, when encountering the problem that the connection part of the existing steel box girder is prone to force fracture, through the structure of the splicing mechanism, the connecting cylinder 2 is pulled out from one end inside the steel box girder body 1, and then, with the cooperation of the connecting cylinder 2, two steel box girder bodies 1 are combined and sleeved on the connecting cylinder 2. At this time, a tool can be used to rotate the hexagonal stud 9 inside the connecting cylinder 2, so as to drive the threaded cylinder 6 to rotate. Thus, with the cooperation of the threaded rod 5, the fixing rod 7 extends from the surface of the connecting cylinder 2 and is inserted inside the fixing hole 10, so as to fixedly connect the connecting cylinder 2 with the steel box girder body 1. At the same time, the limiting plate 8 contacts the inner surface of the connecting cylinder 2 and presses the inner wall of the connecting cylinder 2, so that it closely fits inside the steel box girder body 1. At this time, with the cooperation of the cross support frame 4, the connecting cylinder 2 can play a stable supporting role for the splicing part of the steel box girder body 1, preventing the splicing position of the steel box girder body 1 from being fractured due to force.

[0023] Please refer to Figure 3As shown in the figure, the positioning mechanism includes a plug rod 11. One end of the plug rod 11 is fixed with a limit cap 12. A spring 13 is fixedly connected between the limit cap 12 and the connecting cylinder 2, and the spring 13 is sleeved on the plug rod 11. Symmetric positioning holes 14 are opened at the inner bottom end of the steel box girder body 1. One end of the plug rod 11 is inserted into the inner side of the positioning hole 14. T-shaped slide rails 16 are symmetrically fixed inside the steel box girder body 1. During operation, when there is a problem that the connection position of the steel box girder is offset and it cannot play a supporting role, through the structure of the positioning mechanism, before use, the connecting cylinder 2 is located at the center position inside the steel box girder body 1. At this time, the plug rod 11 is inserted into the positioning hole 14 at the center inside the steel box girder body 1. When splicing, the connecting cylinder 2 is pulled out. At this time, the steel box girder body 1 pushes the plug rod 11 to pull it out from the inner side of the positioning hole 14. When the connecting cylinder 2 moves to the splicing position, the spring 13 pulls the plug rod 11 to extend through its own elastic force and is inserted into the positioning holes 14 at both ends inside the steel box girder body 1, ensuring that the connecting cylinder 2 can accurately move to the splicing position, thus facilitating subsequent splicing.

[0024] Please refer to Figure 4 As shown in the figure, the connecting mechanism ensures the T-shaped slide rail 16. The connecting cylinder 2 is slidably installed on the T-shaped slide rail 16 through a limit groove 3. Card slots 17 are opened on both sides at one end of the steel box girder body 1. Blocks 18 are symmetrically fixed at one end of the steel box girder body 1 away from the card slots 17. One side of the steel box girder body 1 is buckled inside the card slots 17 of the other side of the steel box girder body 1 through the cooperation of the blocks 18. During operation, when there is a problem that the splicing part of the steel box girder is uneven and it is prone to damage due to uneven force, through the structure of the connecting mechanism, with the cooperation of the T-shaped slide rail 16, the connecting cylinder 2 can be pulled out from the inside of the steel box girder body 1 and moved to the splicing position. Then, the two steel box girder bodies 1 to be spliced are connected, so that the block 18 on one side of the steel box girder body 1 is buckled inside the card slot 17 of the other side of the steel box girder body 1, enabling the steel box girder body 1 to be accurately connected, thus ensuring that the steel box girder can normally play a supporting role and ensuring the safe use of the bridge.

[0025] Please refer to Figure 5 As shown in the figure, an internal hexagonal hole 19 is opened at one end of the fixing rod 7. During operation, when the threaded cylinder 6 inside the connecting cylinder 2 is not convenient to rotate, through the structure of the internal hexagonal hole 19, the threaded cylinder 6 can be rotated through the fixing hole 10 on the surface of the steel box girder body 1 with the cooperation of a hexagonal wrench in the internal hexagonal hole 19 to fix the position of the connecting cylinder 2, making the operation of splicing the steel box girder simpler.

[0026] Working principle: The steel box girder, because its shape is similar to a box, is called a steel box girder, and can also be called a steel plate box girder. It is usually applied to long-span bridges to support the bridge deck. In order to facilitate the installation of the steel box girder without affecting its supporting capacity, the steel box girder is usually a modular structure to improve the efficiency of its butt joint installation. During the use of the existing steel box girder, the connection position is more vulnerable than the beam body. During use, it is prone to force fracture, resulting in the steel box girder being unable to play a supporting role. To solve this problem, by setting a splicing mechanism and a positioning mechanism, with the cooperation of the T-shaped slide rail 16, pull the handle 15 to draw out the connecting cylinder 2 from one end inside the steel box girder body 1. At this time, the steel box girder body 1 pushes the insertion rod 11 to draw it out from the inside of the positioning hole 14. When the connecting cylinder 2 is moved to the splicing position, at this time, the spring 13 pulls the insertion rod 11 to extend by its own elastic force and inserts it into the positioning holes 14 at both ends inside the steel box girder body 1 to ensure that the connecting cylinder 2 can accurately move to the splicing position. Then, connect the two steel box girder bodies 1 to be spliced, so that the clamping block 18 of one side of the steel box girder body 1 is buckled inside the clamping groove 17 of the other side of the steel box girder body 1 to accurately connect the steel box girder body 1. At this time, a tool can be used to rotate the hexagonal stud 9 inside the connecting cylinder 2 to drive the threaded cylinder 6 to rotate. Thus, with the cooperation of the threaded rod 5, the fixing rod 7 extends from the surface of the connecting cylinder 2 and inserts it into the fixing hole 10, thereby fixedly connecting the connecting cylinder 2 and the steel box girder body 1. At the same time, the limiting plate 8 contacts the inner surface of the connecting cylinder 2 and presses the inner wall of the connecting cylinder 2 to make it closely fit inside the steel box girder body 1. At this time, with the cooperation of the cross support frame 4, the connecting cylinder 2 can play a stable supporting role for the splicing part of the steel box girder body 1, preventing the splicing position of the steel box girder body 1 from being fractured by force, and solving the problem that the connection part of the existing steel box girder is prone to fracture under force.

[0027] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A positioning splicing steel box girder, characterized in that: It comprises a steel box girder body (1); a connection mechanism is arranged on the inner surface of the steel box girder body (1); a splicing mechanism is arranged on the inner side of the steel box girder body (1); a positioning mechanism is arranged on the inner side of the splicing mechanism; and a connection tube (2) is slidably mounted on the inner side of the steel box girder body (1); The splicing mechanism comprises a connecting tube (2), a cross support frame (4) is fixed inside the connecting tube (2), handles (15) are fixed at both ends of the cross support frame (4), threaded rods (5) are evenly and symmetrically fixed inside the cross support frame (4), a threaded tube (6) is rotatably mounted on the threaded rod (5), a fixing rod (7) is fixed to one end of the threaded tube (6), a limiting plate (8) is fixed to one end of the fixing rod (7) close to the threaded tube (6), a hexagonal stud (9) is fixed to one end of the threaded tube (6), and fixing holes (10) are symmetrically opened on the two side surfaces of the steel box girder body (1).

2. The positioning splicing type steel box girder according to claim 1 is characterized in that: One end of the fixing rod (7) is slidably inserted into the inner side of the fixing hole (10), and an insertion rod (11) is symmetrically slidably inserted into the inner bottom end of the connecting tube (2).

3. The positioning spliced ​​steel box girder according to claim 2 is characterized in that: The positioning mechanism comprises an insertion rod (11), one end of which is fixed with a limiting cap (12), a spring (13) is fixedly connected between the limiting cap (12) and the connecting tube (2), and the spring (13) is sleeved on the insertion rod (11).

4. The positioning spliced ​​steel box girder according to claim 3 is characterized in that: A positioning hole (14) is symmetrically provided at the bottom inner side of the steel box girder body (1), one end of the insertion rod (11) is inserted and installed inside the positioning hole (14), and a T-shaped slide rail (16) is symmetrically fixed inside the steel box girder body (1).

5. The positioning spliced ​​steel box girder according to claim 4 is characterized in that: The connection mechanism ensures the T-shaped slide rail (16), on which a connection tube (2) is slidably mounted in cooperation with a limit groove (3), and a clamping groove (17) is provided on both sides of one end of the steel box beam body (1).

6. The positioning spliced ​​steel box girder according to claim 5, characterized in that: A clamping block (18) is symmetrically fixed to one end of the steel box beam body (1) away from the clamping groove (17); the steel box beam body (1) on one side is buckled and mounted on the inner side of the clamping groove (17) of the steel box beam body (1) on the other side through the clamping block (18).

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