Guiding device for installing longitudinal drainage pipe of steel box girder
By designing a guide device including a guide head, an outer cylinder, an elastic element and a support structure, the problem of jamming during installation of longitudinal drainage pipes is solved, and the effect of efficient installation and reducing damage to drainage pipes is achieved. The device can be reused. .
Patent Information
- Application Number
- CN202420037929.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-08
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-08
AI Technical Summary
When the existing steel box girder longitudinal drain pipe is installed, the longitudinal drain pipe is easily stuck when it passes through the round holes in the wind nozzle of multiple rows of steel box girders, which increases the adjustment time for workers, and the existing guidance device will be damaged when removed. And it cannot be reused.
Design a guide device including a guide head structure, an outer cylinder structure, an elastic element, a support structure and a fixing member. Through the cooperation of the tapered guide head and the elastic element of the guide head, the support structure is expanded and fixed to the inner wall of the longitudinal drainage pipe to avoid Welding fixation for detachable and reusable.
The guide device can easily pass through the round holes in multiple exhaust nozzles, reduce manual operation time, improve installation efficiency, and avoid damage to the drain pipe through clamping and installation, so as to achieve reusability.
Smart Images
Figure CN222139765U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of construction equipment, and in particular relates to a guiding device for installing a longitudinal drainage pipe of a steel box beam. Background Art
[0002] The drainage device of steel box girder bridge is to quickly drain rainwater from the bridge deck, prevent water accumulation from damaging the bridge deck, and improve the durability and safety of the bridge. The drainage device mainly includes longitudinal and transverse slopes, drainage pipes, downpipes, and bridgehead water collection facilities. Usually, circular holes are opened at the air nozzles of the box chambers on both sides of the bridge, and longitudinal drainage pipes are installed to guide the runoff from the bridge deck to the collection pools at both ends of the bridge.
[0003] Usually, the box room is well sealed and the interval between the air nozzle partitions is small. When installing the longitudinal drainage pipe, it needs to be installed from one side to the other along the direction of the bridge. The longitudinal drainage pipe needs to pass through the circular holes on the air nozzles of multiple rows of steel box girders, but the diameter of the circular hole is only slightly larger than the diameter of the longitudinal drainage pipe, which makes the longitudinal drainage pipe easy to get stuck during perforation, increasing the adjustment time of workers.
[0004] The existing guide device usually welds the conical steel part directly on the top of the longitudinal drain pipe, but this design will damage the drain pipe when it is removed and cannot be reused. Therefore, it is urgent to design a convenient perforation and reusable steel box girder longitudinal drain pipe installation guide device. Utility Model Content
[0005] The utility model aims to solve the deficiencies in the prior art and provide a guiding device for installing a longitudinal drainage pipe of a steel box girder.
[0006] The specific technical solutions adopted by this utility model are as follows:
[0007] The utility model provides a guiding device for installing a longitudinal drainage pipe of a steel box beam, which is characterized by comprising a guiding head structure, an outer tube structure, an elastic element, a supporting structure and a fixing piece. The guiding device is placed in the longitudinal drainage pipe to be installed.
[0008] The guide head structure is a guide head with an overall conical shape, including a guide column and a base plate. The bottom of the guide column is vertically fixed to the base plate, and the guide column is divided into a vertical part and an arrow part at the top. An outer cylinder structure is arranged around the vertical part of the guide column. The arrow part of the guide column radiates outward from the center, and the outer edge of the arrow part is flush with the outer diameter of the longitudinal drain pipe. A fixing hole is provided on the arrow part of the guide column, and a fixing member passes through the fixing hole to fix the guide column and the outer cylinder structure. The arrow part also has an operating hole for connecting a traction device.
[0009] The bottom of the outer tube structure is connected to the bottom plate by an elastic element. The outer wall of the outer tube structure is provided with a plurality of support structures connected to the bottom plate. The outer tube structure squeezes the elastic element to expand the support structure outward, so that the support structure bears against the inner wall of the longitudinal drainage pipe, and fixes the guide device in the longitudinal drainage pipe to be installed.
[0010] Preferably, each support structure includes a first support rod, a second support rod, a first hinged plate, a hinged top plate, and a second hinged plate. One end of the first hinged plate is fixed to the outer wall of the outer tube structure, and the other end is hinged to the first support rod. One end of the second hinged plate is fixed to the side wall of the bottom plate, and the other end is hinged to the second support rod. A hinged top plate is hingedly arranged between the first support rod and the second support rod. After the elastic element is subjected to force, the hinged top plate expands outward to support the inner wall of the longitudinal drain pipe.
[0011] Preferably, the guide column is composed of four vertical plates of the same shape, and the angle between each vertical plate is 90 degrees. Each vertical plate is a half arrow shape separated along the symmetry axis, divided into a triangle at the top and a rectangle at the bottom.
[0012] Furthermore, among the four vertical plates, fixing holes are provided on two vertical plates on the same plane, and operation holes are provided on the other two vertical plates.
[0013] Preferably, the elastic element is a compression spring.
[0014] Preferably, the guide column and the base plate are fixed by welding.
[0015] Preferably, one support structure is arranged every 90° along the periphery of the outer cylinder structure, with four support structures in total.
[0016] Preferably, one support structure is provided every 60° along the periphery of the outer cylinder structure, with a total of six support structures.
[0017] Preferably, the fixing member is a fixing pin.
[0018] Preferably, the longitudinal drain pipe is a steel pipe.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] (1) The guide device provided by the utility model is built into the longitudinal drainage pipe. By pressing the outer cylinder structure, the supporting structure on the outside thereof expands outward, thereby supporting the inner wall of the longitudinal drainage pipe and fixing it. The guide device can also be directly removed after use;
[0021] (2) The support structure provided by the utility model securely clamps the guide device on the inner wall of the longitudinal drain pipe by expanding outward, avoiding the need to fix the guide device on the drain pipe by welding, thereby reducing damage to the drain pipe; the clamping method makes the guide device detachable and reusable;
[0022] (3) The guide head structure provided by the utility model is a conical guide head, which can guide the longitudinal drainage pipe to smoothly pass through the circular holes on the air nozzles of multiple rows of steel box girders, thereby reducing the difficulty of punching, reducing manual operation time, and improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of a guiding device provided in this embodiment;
[0024] Figure 2 A schematic diagram of the guide head structure provided in this embodiment;
[0025] Figure 3 A schematic diagram of the pressing outer cylinder structure and the supporting structure provided in this embodiment;
[0026] Figure 4 This is a schematic diagram of installing the longitudinal drainage pipe of the steel box girder using a guide device in this embodiment;
[0027] Figure 5 for Figure 4 A partial enlarged view of
[0028] In the figure: guide head structure 1, outer tube structure 2, elastic element 3, support structure 4, fixing part 5, longitudinal drainage pipe 6, steel box girder nozzle 7, guide column 11, bottom plate 12, fixing hole 13, operation hole 14, first support rod 41, second support rod 42, first hinged plate 43, hinged top plate 44, second hinged plate 45. DETAILED DESCRIPTION
[0029] The present invention is further described and illustrated below in conjunction with the accompanying drawings and specific implementations. The technical features of each implementation of the present invention can be combined accordingly without conflicting with each other.
[0030] This embodiment, as a preferred embodiment of the present utility model, provides a guide device for installing a longitudinal drainage pipe of a steel box girder. Figure 1 As shown, the guide device includes a guide head structure 1, an outer tube structure 2, an elastic element 3, a support structure 4 and a fixing member 5. The guide device is placed in a longitudinal drainage pipe 6 to be installed, and then the longitudinal drainage pipe 6 is passed through a circular hole opened on a steel box girder nozzle 7. Generally, the longitudinal drainage pipe 6 is a steel pipe.
[0031] like Figure 2As shown, the guide head structure 1 provided in this embodiment includes a guide column 11 and a base plate 12. The guide head structure 1 is a conical guide head as a whole. The bottom of the guide column 11 is vertically fixed to the base plate 12 by welding. In this embodiment, the guide column 11 is composed of four vertical plates of the same shape, and the angle between each vertical plate is 90°; each vertical plate is a semi-arrow shape separated along the axis of symmetry, and is divided into a triangular arrow part at the top and a rectangular vertical part at the bottom. Among the four vertical plates, fixing holes 13 are opened on two vertical plates on the same plane, and operating holes 14 are opened on the other two. It should be noted that in the actual construction process, the four vertical plates can be welded to the base plate 12 separately, or they can be welded into a whole and then welded to the base plate 12.
[0032] like Figure 3 As shown, an outer cylinder structure 2 is arranged around the vertical part of the guide column 11; the arrow portion of the guide column 11 radiates outward from the center, and the outer edge of the arrow portion is flush with the outer diameter of the longitudinal drain pipe 6. The guide device is placed inside the longitudinal drain pipe, and the pipe wall at one end of the longitudinal drain pipe presses against the outer edge of the arrow portion, forming a reaction force with the pressing force when the outer cylinder structure 2 is pressed. A fixing hole 13 is provided on the arrow portion of the guide column 11, and the fixing member 5 passes through the fixing hole 13 to fix the guide column 11 and the outer cylinder structure 2 in connection. In this embodiment, the fixing member 5 adopts a fixing pin. The fixing pin passes through the fixing hole 13 to fix the guide column 11 and the outer cylinder structure 2 in connection. The arrow portion of the guide column 11 provided in this embodiment also has an operating hole 14 for connecting a traction device.
[0033] like Figure 3 As shown, the outer cylinder structure 2 is sleeved on the periphery of the vertical part of the guide column 11, and an elastic element 3 is also sleeved on the bottom of the outer cylinder structure 2. In this embodiment, the elastic element 3 is a compression spring. The elastic element 3 connects the bottom of the outer cylinder structure 2 and the bottom plate 12 of the guide column 11. In this embodiment, the outer cylinder structure 2 used is a hollow truncated cone structure with a larger top and a smaller bottom, that is, the inner diameter of the bottom of the outer cylinder structure 2 is smaller than the inner diameter of its top. The inner diameter of the bottom of the outer cylinder structure 2 is slightly larger than the outer edge of the vertical part of the guide column 11, ensuring that the vertical part of the guide column 11 can pass through the outer cylinder structure 2.
[0034] The outer wall of the outer cylinder structure 2 is provided with a plurality of support structures 4 connected to the bottom plate 12 of the guide column 11. In this embodiment, one support structure 4 is provided every 90° along the outer periphery of the outer cylinder structure 2, and a total of four support structures 4 are provided. It should be noted that if the diameter of the longitudinal drainage pipe is larger, six support structures 4 may also be provided, one support structure 4 is provided every 60° along the outer periphery of the outer cylinder structure 2.
[0035] like Figure 3As shown, each support structure 4 includes a first support rod 41, a second support rod 42, a first hinged plate 43, a hinged top plate 44 and a second hinged plate 45. One end of the first hinged plate 43 is fixed to the outer wall of the outer cylinder structure 2, and the other end is hinged to the first support rod 41. One end of the second hinged plate 45 is fixed to the side wall of the bottom plate 12, and the other end is hinged to the second support rod 42; a hinged top plate 44 is hingedly arranged between the first support rod 41 and the second support rod 42. The outer cylinder structure 2 squeezes the elastic element 3, and after the elastic element 3 is subjected to force, the support structure 4 is squeezed by the elastic element 3 and expands outward, so that the hinged top plate 44 in the support structure presses against the inner wall of the longitudinal drain pipe, and the guide device is fixed in the longitudinal drain pipe to be installed, as shown specifically. Figure 5 shown.
[0036] The specific method of using the guide device for installing the longitudinal drainage pipe of the steel box girder provided in this embodiment is as follows:
[0037] S1: Make a guiding device according to the above description.
[0038] S2: Place the guide device inside one end of the longitudinal drain pipe to be installed, and the pipe wall of one end of the longitudinal drain pipe presses against the outer edge of the arrow part of the guide column.
[0039] S3: Press the outer tube structure to expand the support structure outward to support the inner wall of the longitudinal drainage pipe.
[0040] S4: Insert the fixing pin into the fixing hole to fix the outer tube structure so that the guide device is clamped in the longitudinal drainage pipe.
[0041] S5: Lift the longitudinal drainage pipe to the circular hole at the air nozzle of the steel box girder on one side of the bridge, and pass through the first 2 to 3 rows of circular holes. Figure 4 shown.
[0042] S6: A traction device is set on the other side of the bridge, one end of the wire rope is set on the operating hole of the guide device, and the other end is connected to the traction device. The longitudinal drainage pipe is installed to the designated position through the traction device.
[0043] S7: Release the fixing pin, the spring element pushes out the outer cylinder structure, and takes out the guide device for installation of the next section of the longitudinal drainage pipe.
[0044] The guide device is easy to disassemble and assemble, which can reduce the time for workers to disassemble and assemble, thereby improving construction efficiency. At the same time, the support structure firmly clamps the guide device on the inner wall of the longitudinal drain pipe by expanding outward, avoiding the use of welding to fix it on the drain pipe, thereby reducing damage to the drain pipe; the clamping method makes the guide device detachable and reusable.
[0045] The above-described embodiment is only a preferred solution of the present invention, but it is not intended to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.
Claims
1. A guiding device for installing a longitudinal drainage pipe of a steel box girder, characterized in that: It comprises a guide head structure (1), an outer cylinder structure (2), an elastic element (3), a support structure (4) and a fixing member (5); the guide device is placed in a longitudinal drainage pipe (6) to be installed; The guide head structure (1) is a guide head in an overall conical shape, comprising a guide column (11) and a bottom plate (12); the bottom of the guide column (11) is vertically fixed to the bottom plate (12), and the guide column (11) is divided into a vertical portion and an arrow portion at the top; an outer cylinder structure (2) is arranged around the vertical portion of the guide column (11); the arrow portion of the guide column (11) radiates outward from the center, and the outer edge of the arrow portion is flush with the outer diameter of the longitudinal drain pipe (6); a fixing hole (13) is provided on the arrow portion of the guide column (11), and the fixing member (5) passes through the fixing hole (13) to fix the guide column (11) and the outer cylinder structure (2) together; the arrow portion also has an operating hole (14) for connecting a traction device; The bottom of the outer cylinder structure (2) and the bottom plate (12) are connected via an elastic element (3); a plurality of support structures (4) connected to the bottom plate (12) are arranged on the outer wall of the outer cylinder structure (2); the outer cylinder structure (2) presses the elastic element (3) to expand the support structure (4) outward, so that the support structure (4) bears against the inner wall of the longitudinal drainage pipe (6), thereby fixing the guide device in the longitudinal drainage pipe (6) to be installed.
2. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 1, characterized in that: Each support structure (4) comprises a first support rod (41), a second support rod (42), a first hinged plate (43), a hinged top plate (44) and a second hinged plate (45); one end of the first hinged plate (43) is fixed to the outer wall of the outer tube structure (2), and the other end is hinged to the first support rod (41); one end of the second hinged plate (45) is fixed to the side wall of the bottom plate (12), and the other end is hinged to the second support rod (42); a hinged top plate (44) is hingedly arranged between the first support rod (41) and the second support rod (42); after the elastic element (3) is subjected to force, the hinged top plate (44) expands outward to support the inner wall of the longitudinal drainage pipe (6).
3. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 1, characterized in that: The guide column (11) is composed of four vertical plates of the same shape, and the angle between each vertical plate is 90 degrees; each vertical plate is in the shape of a half arrow separated along the symmetry axis, and is divided into a triangle at the top and a rectangle at the bottom.
4. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 3, characterized in that: Among the four vertical plates, two vertical plates on the same plane are provided with fixing holes (13), and the other two vertical plates are provided with operation holes (14).
5. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 1, characterized in that: The elastic element (3) is a compression spring.
6. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 1, characterized in that: The guide column (11) and the bottom plate (12) are fixed by welding.
7. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 1, characterized in that: The support structures (4) are arranged every 90 degrees along the periphery of the outer cylinder structure (2), with a total of four structures being arranged.
8. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 1, characterized in that: The support structures (4) are arranged every 60° along the periphery of the outer cylinder structure (2), with a total of six structures being arranged.
9. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 1, characterized in that: The fixing member (5) is a fixing latch.
10. The guiding device for installing the longitudinal drainage pipe of a steel box girder according to claim 1, characterized in that: The longitudinal drainage pipe (6) is a steel pipe.