Anti-overturning device for storing small prefabricated box girder

Abstract

The utility model provides a prefabricated small box girder storage anti-overturning device which comprises a small box girder and flanges arranged on the left side and the right side of the small box girder, an auxiliary assembly used for preventing the small box girder from overturning in the placing process is arranged on the small box girder, and the auxiliary assembly comprises fixing frames arranged on the front face and the back face of the small box girder. Fixing plates are arranged on the left side and the right side of the fixing frame, electric push rods are arranged on the fixing plates, the electric push rods are fixedly installed on the fixing frame, a movable plate is arranged at the tops of the electric push rods, a connecting plate is arranged on one side of the movable plate, a first top plate is arranged on one side of the connecting plate, and the first top plate is tightly attached to the bottom face of the flange. And the first top plate and the second top plate are arranged, the first top plate can be tightly attached to the bottom face of the flange through the electric push rod, meanwhile, the electric air cylinder drives the movable rod to rotate, the second top plate is tightly attached to the inner top wall and the inner bottom wall of the small box girder, and the situation that the small box girder overturns in the storage process is prevented.

Description

Technical Field

[0001] This utility model relates to the field of small box girder storage technology, and more specifically, to a prefabricated small box girder storage anti-overturning device. Background Technology

[0002] Box girders can be classified into small box girders and large box girders according to their size. Box girders are a commonly used type of beam in bridge construction. The middle of a box girder is hollow, and the upper two sides are provided with flange structures, which resemble wings and extend from the middle of the box girder to both sides. On the construction site, box girders are usually constructed using two methods: prefabrication and on-site construction. Prefabricated box girders are processed and manufactured in a prefabrication yard, which usually has a construction area and a storage area. After the box girders are manufactured, they are placed in the storage area for storage. Due to the large volume of box girders, in order to save space, existing technologies mostly use overlapping storage. However, because the box girders are wider at the top and narrower at the bottom, they are prone to tipping over during storage, leading to damage. Therefore, this utility model proposes an anti-tipping device for storing prefabricated small box girders. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a prefabricated small box girder storage anti-overturning device, which has the advantages of preventing box girder overturning and improving storage stability, and solves the problem that box girders are prone to overturning during storage in existing technologies.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned goal of improving the stability of box girders during storage, this utility model provides the following technical solution: a prefabricated small box girder storage anti-overturning device, comprising a small box girder and flanges disposed on the left and right sides of the small box girder, wherein the small box girder is provided with an auxiliary component for preventing the small box girder from overturning during placement, the auxiliary component comprising a fixing frame disposed on the front and back of the small box girder, fixing plates disposed on the left and right sides of the fixing frame, an electric push rod disposed on the fixing plate, the electric push rod being fixedly installed on the fixing frame, a movable plate disposed on the top of the electric push rod, a connecting plate disposed on one side of the movable plate, a first top plate disposed on one side of the connecting plate, the first top plate being tightly fitted with the bottom surface of the flange;

[0007] The fixed frame has two frames on one side, and mounting brackets are provided on the left and right sides inside the frames. Two sets of movable rods are rotatably arranged on the front and rear sides inside the frames. An electric cylinder is provided between the two sets of movable rods. A second top plate is provided on one side of each of the two frames. The two second top plates are tightly fitted to the inner top wall and inner bottom wall of the small box girder, respectively. A connector is rotatably arranged between the two sets of movable rods. The connector is rotatably connected to the back of the fixed frame.

[0008] In an embodiment of this utility model, a fixing block is fixed to the top of the electric push rod, and a first connecting arm is rotatably connected to both the left and right sides of the fixing block. A second connecting arm is rotatably connected to the bottom of the first connecting arm, and a third connecting arm is rotatably connected to the top of the first connecting arm.

[0009] In an embodiment of this utility model, the other end of the second connecting arm is rotatably connected to the top surface of the fixed plate, and the other end of the third connecting arm is rotatably connected to the bottom surface of the movable plate.

[0010] In an embodiment of this utility model, fixing rods are fixed on both the left and right sides of the top surface of the fixed plate, and circular holes are opened on both the left and right sides of the top surface of the movable plate. The two fixing rods pass through the two circular holes respectively and are slidably connected to them.

[0011] In an embodiment of this utility model, a stop block is provided at the top of the fixing rod, and the diameter of the stop block is larger than the diameter of the circular hole.

[0012] In an embodiment of this utility model, sliding grooves are fixedly provided at both the front and rear ends of the right side inside the two frames. The two ends of the movable rod are rotatably connected to the mounting brackets on the left and right sides, respectively. The front and rear ends of the two mounting brackets on the right side are slidably connected to the four sliding grooves, respectively.

[0013] In an embodiment of this utility model, four connecting rods are fixed between the front and rear sets of movable rods, and mounting seats are fixed on the connecting rod and the connecting piece on the top right side. The two ends of the electric cylinder are rotatably connected to the two mounting seats respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model is provided with a first top plate and a second top plate. An electric push rod can be used to make the first top plate fit tightly against the bottom surface of the flange. At the same time, an electric cylinder drives the movable rod to rotate and make the second top plate fit tightly against the inner top wall and inner bottom wall of the small box girder, thereby providing a supporting effect for the flange of the small box girder and preventing the small box girder from tipping over during storage.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Attached Figure Description

[0017] 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.

[0018] Figure 1 This utility model provides an overall structural schematic diagram of its embodiments;

[0019] Figure 2 A schematic diagram of the structure of the first top plate provided for an embodiment of this utility model;

[0020] Figure 3 A schematic diagram of the structure of the second top plate provided for an embodiment of this utility model.

[0021] In the diagram: 10, small box girder; 1001, flange; 20, fixed frame; 30, fixed plate; 3001, electric push rod; 3002, fixed block; 3003, first connecting arm; 3004, second connecting arm; 3005, third connecting arm; 3006, fixed rod; 3007, movable plate; 3008, stop block; 3009, connecting plate; 3010, first top plate; 40, frame; 4001, slide rail; 4002, mounting bracket; 4003, movable rod; 4004, mounting base; 4005, electric cylinder; 4006, second top plate; 4007, connector; 4008, connecting rod. Detailed Implementation

[0022] 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.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-2 This utility model provides a technical solution: a prefabricated small box girder storage anti-overturning device, including a small box girder 10 and flanges 1001 arranged on the left and right sides of the small box girder 10. The small box girder 10 is provided with auxiliary components to prevent the small box girder 10 from overturning during placement.

[0025] Please see Figure 1 and Figure 2 The auxiliary components include fixed frames 20 set on the front and back of the small box girder 10. Fixed plates 30 are set on both the left and right sides of the fixed frames 20. Electric push rods 3001 are set on the fixed plates 30 and fixedly installed on the fixed frames 20. A movable plate 3007 is set on the top of the electric push rod 3001. A connecting plate 3009 is set on one side of the movable plate 3007. A first top plate 3010 is set on one side of the connecting plate 3009. The first top plate 3010 is in close contact with the bottom surface of the flange 1001. When the electric push rod 3001 is activated, the first top plate 3010 is moved upward until it is in close contact with the bottom surface of the flange 1001. At this time, it can provide support for the flange 1001 and prevent the small box girder 10 from overturning due to the different weight of the upper and lower parts of the small box girder 10.

[0026] In this embodiment, a fixing block 3002 is fixed to the top of the electric push rod 3001. First connecting arms 3003 are rotatably connected to both the left and right sides of the fixing block 3002. A second connecting arm 3004 is rotatably connected to the bottom of the first connecting arm 3003, and a third connecting arm 3005 is rotatably connected to the top of the first connecting arm 3003. During the extension and retraction process, the output shaft of the electric push rod 3001 drives the fixing block 3002 to move up and down. During the up and down movement of the fixing block 3002, the first connecting arm 3003 pulls or pushes the second connecting arm 3004 and the third connecting arm 3005 to rotate, thereby driving the movable plate 3007 to move up and down.

[0027] It should be noted that the other end of the second connecting arm 3004 is rotatably connected to the top surface of the fixed plate 30, and the other end of the third connecting arm 3005 is rotatably connected to the bottom surface of the movable plate 3007.

[0028] It is understandable that fixing rods 3006 are fixed on both the left and right sides of the top surface of the fixed plate 30, and circular holes are opened on both the left and right sides of the top surface of the movable plate 3007. The two fixing rods 3006 pass through the two circular holes respectively and are slidably connected to them. The fixing rods 3006 play a limiting and supporting role for the movable plate 3007, thereby improving the stability of the movable plate 3007.

[0029] It should be emphasized that a stop 3008 is provided at the top of the fixed rod 3006. The diameter of the stop 3008 is larger than the diameter of the circular hole to prevent the movable plate 3007 from moving out of the top of the fixed rod 3006.

[0030] Please see Figure 3 Two frames 40 are provided on one side of the fixed frame 20. Mounting brackets 4002 are provided on both the left and right sides inside the frames 40. Two sets of movable rods 4003 are rotatably arranged on the front and rear sides inside the frames 40. An electric cylinder 4005 is provided between the two sets of movable rods 4003. A second top plate 4006 is provided on one side of each of the two frames 40. The two second top plates 4006 are tightly fitted to the inner top and bottom walls of the small box girder 10, respectively. A connecting piece 4007 is rotatably arranged between the two sets of movable rods 4003. The connecting piece 4007 is rotatably connected to the back of the fixed frame 20. The electric cylinder 4005 can pull the two sets of movable rods 4003 to rotate. During the rotation of the two sets of movable rods 4003, the two second top plates 4006 are tightly fitted to the inner top and bottom walls of the small box girder 10, providing support for the interior of the small box girder 10. This, in conjunction with the first top plate 3010, improves the stability of the small box girder 10 during storage.

[0031] In this embodiment, slide grooves 4001 are fixedly provided at both the front and rear ends of the right side inside the two frames 40. The two ends of the movable rod 4003 are rotatably connected to the mounting brackets 4002 on the left and right sides respectively. The front and rear ends of the two mounting brackets 4002 on the right side are slidably connected to the four slide grooves 4001 respectively. During the rotation of the two sets of movable rods 4003, the right end of the movable rod 4003 slides left and right in the slide groove 4001.

[0032] Among them, four connecting rods 4008 are fixed between the front and rear sets of movable rods 4003. Mounting seats 4004 are fixed on the top right connecting rod 4008 and the connecting piece 4007. The two ends of the electric cylinder 4005 are rotatably connected to the two mounting seats 4004 respectively.

[0033] Specifically, the working principle of this precast small box girder storage anti-overturning device is as follows:

[0034] In use, first push the fixing frame 20 to a position close to the small box girder 10, so that the first top plate 3010 is located at the bottom of the flange 1001 and the second top plate 4006 is located inside the small box girder 10. Then, start the electric push rod 3001. During the extension and retraction process, the output shaft of the electric push rod 3001 drives the fixing block 3002 to move up and down. During the up and down movement of the fixing block 3002, the first connecting arm 3003 pulls or pushes the second connecting arm 3004 and the third connecting arm 3005 to rotate, thereby driving the movable plate. 3007 moves up and down until the movable plate 3007 drives the first top plate 3010 to fit tightly against the bottom surface of the flange 1001. At the same time, the electric cylinder 4005 pulls the two sets of movable rods 4003 to rotate. During the rotation, the two sets of movable rods 4003 make the two second top plates 4006 fit tightly against the inner top wall and inner bottom wall of the small box girder 10, which provides support for the interior of the small box girder 10 and works with the first top plate 3010 to improve the stability of the small box girder 10 during storage and prevent the small box girder 10 from tipping over.

[0035] It should be noted that the specific models and specifications of the electric push rod 3001, the first connecting arm 3003, the second connecting arm 3004, the third connecting arm 3005, the first top plate 3010, the movable rod 4003, the electric cylinder 4005, and the second top plate 4006 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0036] The power supply and operating principle of the electric actuator 3001 and the electric cylinder 4005 are clear to those skilled in the art and will not be described in detail here.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prefabricated small box girder storage anti-overturning device, comprising a small box girder (10) and flanges (1001) disposed on the left and right sides of the small box girder (10), characterized in that: The small box girder (10) is provided with an auxiliary component to prevent the small box girder (10) from tipping over during placement. The auxiliary component includes a fixing frame (20) provided on the front and back of the small box girder (10). The fixing frame (20) is provided with a fixing plate (30) on both the left and right sides. An electric push rod (3001) is provided on the fixing plate (30). The electric push rod (3001) is fixedly installed on the fixing frame (20). A movable plate (3007) is provided on the top of the electric push rod (3001). A connecting plate (3009) is provided on one side of the movable plate (3007). A first top plate (3010) is provided on one side of the connecting plate (3009). The first top plate (3010) is tightly attached to the bottom surface of the flange (1001). Two frames (40) are provided on one side of the fixed frame (20). Mounting brackets (4002) are provided on the left and right sides inside the frame (40). Two sets of movable rods (4003) are rotatably arranged on the front and rear sides inside the frame (40). An electric cylinder (4005) is provided between the two sets of movable rods (4003). A second top plate (4006) is provided on one side of each of the two frames (40). The two second top plates (4006) are tightly fitted to the inner top wall and inner bottom wall of the small box girder (10) respectively. A connector (4007) is rotatably arranged between the two sets of movable rods (4003). The connector (4007) is rotatably connected to the back of the fixed frame (20).

2. The precast small box girder storage anti-overturning device according to claim 1, characterized in that, The top of the electric push rod (3001) is fixed with a fixing block (3002), and the left and right sides of the fixing block (3002) are rotatably connected with a first connecting arm (3003). The bottom end of the first connecting arm (3003) is rotatably connected with a second connecting arm (3004), and the top of the first connecting arm (3003) is rotatably connected with a third connecting arm (3005).

3. The anti-overturning device for storing precast small box girders according to claim 2, characterized in that, The other end of the second connecting arm (3004) is rotatably connected to the top surface of the fixed plate (30), and the other end of the third connecting arm (3005) is rotatably connected to the bottom surface of the movable plate (3007).

4. The anti-overturning device for storing precast small box girders according to claim 2, characterized in that, Fixing rods (3006) are fixed on both the left and right sides of the top surface of the fixed plate (30), and circular holes are opened on both the left and right sides of the top surface of the movable plate (3007). The two fixing rods (3006) pass through the two circular holes respectively and are slidably connected to them.

5. The anti-overturning device for storing precast small box girders according to claim 4, characterized in that, The top end of the fixing rod (3006) is provided with a stop (3008), and the diameter of the stop (3008) is larger than the diameter of the circular hole.

6. The anti-overturning device for storing precast small box girders according to claim 1, characterized in that, The two frames (40) are fixedly provided with sliding grooves (4001) at both ends of the right side. The two ends of the movable rod (4003) are rotatably connected to the mounting brackets (4002) on the left and right sides respectively. The two mounting brackets (4002) on the right side are slidably connected to the four sliding grooves (4001) respectively.

7. The precast small box girder storage anti-overturning device according to claim 6, characterized in that, Four connecting rods (4008) are fixed between the two sets of movable rods (4003) at the front and rear. Mounting seats (4004) are fixed on the connecting rods (4008) and connecting parts (4007) at the top right side. The two ends of the electric cylinder (4005) are rotatably connected to the two mounting seats (4004) respectively.

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