Supporting device for prefabricated box girder moving pedestal track

Abstract

The utility model relates to a supporting device for a track of a prefabricated box girder moving pedestal, which comprises supporting mechanisms symmetrically arranged on two sides of the track in the width direction, each supporting mechanism comprises a supporting seat, the supporting seats are fixed with a roadbed through fixing components, and the supporting seats are connected with the side wall of the track through connecting components; the fixing assembly comprises two fixing rods, the two fixing rods are obliquely arranged in the opposite directions and arranged in a staggered mode, guide holes allowing the fixing rods to penetrate through are formed in the top face of the supporting base, the bottom ends of the fixing rods are conical and drill into the roadbed, and the top ends of the fixing rods are fixedly connected with a fixing plate. The bottom face of the fixing plate abuts against the top face of the supporting base, and the fixing plate is fixedly connected with the supporting base through fixing screws. The method has the effects of improving the stress stability of the track and reducing the settlement possibility of the track.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated box beams, in particular to a supporting device for a movable pedestal track of a prefabricated box beam. Background Art

[0002] At present, box girders are used in bridge and highway construction. Reinforced concrete box girders are one of the important structures in bridge engineering. According to the way of concrete pouring, they can be divided into prefabricated box girders and cast-in-place box girders. Among them, cast-in-place box girders refer to box girders directly cast at the construction site, while prefabricated box girders refer to prefabrication in an independent site in advance, and then hoisting after the lower structure of the beam is completed.

[0003] Traditional box girder prefabrication mostly uses fixed pedestals, and the templates need to be hoisted and assembled during construction. After the beam and slab are prefabricated, they need to be transported to the beam storage area by a transport vehicle or hoisted to the beam storage area by a gantry crane. The process of hoisting the template and hoisting the beam and slab requires the coordinated operation of lifting equipment and transportation equipment, but hoisting has corresponding safety risks and the hoisting and hoisting efficiency is low, which affects the progress of box girder construction. Therefore, in order to facilitate the construction and installation of prefabricated box girders, construction workers began to use mobile pedestals for construction.

[0004] The Chinese utility model patent with the announcement number CN218203890U discloses a prefabricated box beam transverse moving platform, which includes several transverse tracks arranged on the transverse concrete track foundation and three connected segments. Each segment is provided with active running wheels on both sides and a driven running wheel in the middle; the active running wheels and the driven running wheels are both arranged on the transverse track, and the active running wheels are connected to a running motor with a reducer, and the running motor drives the active running wheels to rotate, so as to realize the transverse movement of the prefabricated box beam to the beam storage area.

[0005] Regarding the above-mentioned related technologies, since the weight of the mobile pedestal and the box girder is heavy and the soil load weight of the roadbed is large, the track for the mobile pedestal to move may sink after a period of time, so a track support device is needed to reduce the possibility of track sinking. Utility Model Content

[0006] In order to solve the above technical problems, the present application provides a support device for a prefabricated box girder moving pedestal track.

[0007] The present application provides a support device for a prefabricated box girder mobile pedestal track using the following technical solution:

[0008] A support device for a prefabricated box girder mobile pedestal track, comprising support mechanisms symmetrically arranged on both sides of the track width direction, each group of the support mechanisms comprising a support seat, the support seat being fixed to the roadbed through a fixing assembly, and the support seat being connected to the side wall of the track through a connecting assembly;

[0009] The fixing assembly includes two fixing rods, the two fixing rods are tilted in opposite directions, the two fixing rods are staggered, a guide hole for the fixing rod to pass through is provided on the top surface of the support seat, the bottom end of the fixing rod is conical, the bottom end of the fixing rod is drilled into the roadbed, the top end of the fixing rod is fixedly connected with a fixing plate, the bottom surface of the fixing plate abuts against the top surface of the support seat, and the fixing plate is fixedly connected to the support seat by fixing screws.

[0010] By adopting the above technical solution, the support seat is first fixed to the side wall of the track through a connecting assembly. After the position of the support seat is determined, the fixing rod is pressed into the roadbed through a pile driver or other related tools. Since the fixing rods are inclined in opposite directions, the force directions of the fixing rods are different, which not only fixes the support seat, but also disperses the pressure of the track and the support seat on the roadbed. At the same time, the support seat supports the track, improves the stability of the track force, and reduces the possibility of track settlement.

[0011] Preferably, the connecting assembly includes a first connecting plate, which is fixedly connected to the side wall of the track by countersunk screws, a side of the first connecting plate away from the track is fixedly connected to a connecting rod, the bottom surface of the connecting rod is in contact with the top surface of the support seat, and a second connecting plate is provided on the top surface of the support seat, the second connecting plate includes an integrally formed horizontal section and a vertical section, the vertical section is fixedly connected to the support seat, and the horizontal section is fixedly connected to the connecting rod by connecting screws.

[0012] By adopting the above technical solution, the first connecting plate is first fixed to the side wall of the track by countersunk screws, and then the support seat is moved to align with the second connecting plate and the connecting rod, so that the bottom surface of the connecting rod is in contact with the top surface of the support seat, and the top surface of the connecting rod is in contact with the bottom surface of the horizontal section of the second connecting plate, and then the connecting screws are passed through the horizontal section of the second connecting plate and threadedly connected to the connecting rod, thereby fixing the support seat to the track.

[0013] Preferably, a support plate is provided on the surface of the first connecting plate close to the track, and the support plate is inclined. The end of the support plate away from the first connecting plate is higher than the end of the support plate close to the first connecting plate. A support groove for the support plate to penetrate is opened on the side wall of the track, and the support groove is also inclined and adapted to the inclination degree of the support plate.

[0014] By adopting the above technical solution, the inclined support plate provides an inclined supporting force to the track, so that the support base supports the track more stably.

[0015] Preferably, a positioning plate is horizontally arranged on a surface of the first connecting plate close to the support seat, and a positioning groove for the positioning plate to penetrate into is formed on a surface of the support seat close to the track.

[0016] By adopting the above technical solution, the support seat is moved horizontally close to the track, so that the positioning plate is inserted into the positioning groove, and the positioning groove of the support seat further supports the positioning plate.

[0017] Preferably, a dovetail strip is arranged on the top surface of the support seat, and a dovetail groove for the dovetail strip to pass through is opened on the bottom surface of the connecting rod, and the dovetail groove runs through both ends of the connecting rod in the length direction.

[0018] By adopting the above technical solution, the dovetail bar penetrates into the dovetail groove to guide the connection between the support seat and the first connecting plate.

[0019] Preferably, the side of the vertical section away from the horizontal section is inclined from top to bottom toward a direction away from the track.

[0020] By adopting the above technical solution, the stability of the second connecting plate is improved.

[0021] Preferably, the cross section of the fixing plate is elliptical, and the major axis of the cross section of the fixing plate is parallel to the length direction of the connecting rod.

[0022] By adopting the above technical solution, the area of ​​the fixing plate is reduced to the greatest extent, and interference between the connecting rod and the second connecting plate and the fixing plate is avoided when the fixing rod passes through the guide hole.

[0023] Preferably, a mounting ear plate is respectively provided at both ends of the support seat in the length direction, and the mounting ear plate is fixed to the roadbed by mounting screws.

[0024] By adopting the above technical solution, the mounting screws are passed through the mounting ear plates and then fastened to the foundation threads, thereby performing secondary fixation on the support seat.

[0025] Preferably, the longitudinal section of the support seat is trapezoidal.

[0026] By adopting the above technical solution, the overall stability of the support base is improved.

[0027] In summary, this application includes the following beneficial technical effects:

[0028] First, fix the support seat to the side wall of the track through the connecting assembly. After the position of the support seat is determined, press the fixing rod into the roadbed through a pile driver or other related tools. Since the fixing rods are inclined in opposite directions, the force directions of the fixing rods are different, which not only fixes the support seat, but also disperses the pressure of the track and the support seat on the roadbed. At the same time, the support seat supports the track, improves the stability of the track force, and reduces the possibility of track settlement. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a schematic diagram of the overall structure of a support device for a prefabricated box girder moving pedestal track in an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of the overall structure used to display a group of supporting mechanisms in an embodiment of the present application.

[0031] Figure 3 It is a cross-sectional structural schematic diagram used to demonstrate the connection relationship between the fixing rod, the support seat and the roadbed in the embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of a partial explosion structure used to show the support mechanism on one side of the track in the embodiment of the present application.

[0033] Figure 5 It is a schematic diagram of a partial explosion structure used to demonstrate the positioning groove in the embodiment of the present application.

[0034] Explanation of the accompanying drawings: 1. Support mechanism; 2. Support seat; 21. Guide hole; 22. Mounting ear plate; 221. Mounting screw; 3. Fixing assembly; 31. Fixing rod; 32. Fixing plate; 33. Fixing screw; 4. Connecting assembly; 41. First connecting plate; 42. Countersunk screw; 43. Connecting rod; 44. Second connecting plate; 441. Horizontal section; 442. Vertical section; 45. Connecting screw; 46. Support plate; 461. Support groove; 47. Positioning plate; 471. Positioning groove; 48. Dovetail strip; 481. Dovetail groove; 5. Track; 6. Roadbed. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The embodiment of the present application discloses a support device for a movable pedestal track 5 of a prefabricated box girder.

[0037] Reference Figure 1-5 The supporting device for the prefabricated box girder mobile pedestal track 5 includes supporting mechanisms 1 symmetrically arranged on both sides of the track 5 in the width direction, and each group of supporting mechanisms 1 includes a supporting seat 2, which is fixed to the roadbed 6 through a fixing assembly 3, and the supporting seat 2 is connected to the side wall of the track 5 through a connecting assembly 4. The longitudinal section of the supporting seat 2 is trapezoidal, which improves the overall stability of the supporting seat 2.

[0038] The fixing assembly 3 includes two fixing rods 31, and the two fixing rods 31 are tilted in opposite directions and staggered. A guide hole 21 for the fixing rod 31 to pass through is provided on the top surface of the support seat 2. The bottom end of the fixing rod 31 is conical, and the bottom end of the fixing rod 31 is drilled into the roadbed 6. A fixing plate 32 is fixedly welded to the top of the fixing rod 31. The bottom surface of the fixing plate 32 abuts against the top surface of the support seat 2. The fixing plate 32 is fixedly connected to the support seat 2 by a fixing screw 33, and the fixing screw 33 is threadedly connected to the fixing plate 32 and the support seat 2 at the same time.

[0039] The cross section of the fixing plate 32 is elliptical, and the long axis of the cross section of the fixing plate 32 is parallel to the length direction of the connecting rod 43. The fixing screws 33 are arranged at both ends of the long axis of the end face of the fixing plate 32 to minimize the area of ​​the fixing plate 32 and avoid interference between the connecting rod 43 and the second connecting plate 44 and the fixing plate 32 when the fixing rod 31 passes through the guide hole 21.

[0040] A mounting lug plate 22 is fixedly welded at each end of the length direction of the support seat 2, and the mounting lug plate 22 is fixed to the roadbed 6 by mounting screws 221. The mounting screws 221 are passed through the mounting lug plate 22 and then screwed and fixed to the foundation thread, and the support seat 2 is fixed for the second time.

[0041] According to the length of the track 5, a plurality of groups of support devices are arranged at intervals along the length direction of the track 5. When installing each group of support mechanisms 1, the support seat 2 is first fixed to the side wall of the track 5 by the connecting assembly 4. After the position of the support seat 2 is determined, the fixing rod 31 is pressed into the roadbed 6 by a pile driver or other related tools. Since the fixing rod 31 is inclined in opposite directions, the force directions of the fixing rod 31 are different, which not only fixes the support seat 2, but also disperses the pressure of the track 5 and the support seat 2 on the roadbed 6. At the same time, the support seat 2 supports the track 5, thereby improving the stability of the force on the track 5 and reducing the possibility of settlement of the track 5.

[0042] The connecting assembly 4 includes a first connecting plate 41, which is fixedly connected to the side wall of the track 5 by a countersunk screw 42, and the countersunk screw 42 passes through the first connecting plate 41 and is threadedly connected to the side wall of the track 5. A connecting rod 43 is fixedly welded to the side of the first connecting plate 41 away from the track 5. The connecting rod 43 is located at both ends of the length direction of the first connecting plate 41. The bottom surface of the connecting rod 43 is in contact with the top surface of the support seat 2. A second connecting plate 44 is provided on the top surface of the support seat 2. The second connecting plate 44 corresponds to the connecting rod 43 one by one. The second connecting plate 44 includes an integrally formed horizontal section 441 and a vertical section 442. The vertical section 442 is fixedly welded to the support seat 2. The horizontal section 441 is fixedly connected to the connecting rod 43 by a connecting screw 45. The connecting screw 45 is threadedly connected to the horizontal section 441 and the connecting rod 43 of the second connecting plate 44 at the same time.

[0043] The side of the vertical section 442 of the second connecting plate 44 away from the horizontal section 441 is tilted from top to bottom toward a direction away from the track 5 , thereby improving the stability of the second connecting plate 44 .

[0044] A support plate 46 is fixedly welded on the surface of the first connecting plate 41 close to the track 5. The support plate 46 is tilted, and the end of the support plate 46 away from the first connecting plate 41 is higher than the end of the support plate 46 close to the first connecting plate 41. A support groove 461 for the support plate 46 to penetrate is provided on the side wall of the track 5. The support groove 461 is also tilted and adapted to the tilt of the support plate 46. The tilted support plate 46 provides an inclined support force to the track 5, so that the support seat 2 supports the track 5 more stably.

[0045] A positioning plate 47 is fixedly welded on one surface of the first connecting plate 41 close to the support seat 2. The positioning plate 47 is horizontally arranged. A positioning groove 471 for the positioning plate 47 to penetrate into is opened on one surface of the support seat 2 close to the track 5. The support seat 2 is moved horizontally close to the track 5 so that the positioning plate 47 penetrates into the positioning groove 471. The positioning groove 471 of the support seat 2 further supports the positioning plate 47.

[0046] A dovetail strip 48 is fixedly welded on the top surface of the support seat 2, and a dovetail groove 481 is provided on the bottom surface of the connecting rod 43 for the dovetail strip 48 to pass through. The dovetail groove 481 runs through both ends of the connecting rod 43 in the length direction. The dovetail strip 48 passes through the dovetail groove 481 to guide the connection between the support seat 2 and the first connecting plate 41.

[0047] When connecting the support seat 2 and the track 5, first insert the support plate 46 into the support groove 461, then fix the first connecting plate 41 to the side wall of the track 5 by the countersunk screw 42, then align the dovetail bar 48 with the dovetail groove 481, move the support seat 2 close to the track 5 in the horizontal direction, so that the positioning plate 47 is inserted into the positioning groove 471, the bottom surface of the connecting rod 43 is in contact with the top surface of the support seat 2, and the top surface of the connecting rod 43 is in contact with the bottom surface of the horizontal section 441 of the second connecting plate 44, and then pass the connecting screw 45 through the horizontal section 441 of the second connecting plate 44 and threadedly connect it to the connecting rod 43, thereby fixing the support seat 2 and the track 5.

[0048] The implementation principle of a support device for a prefabricated box beam mobile pedestal track 5 in the embodiment of the present application is as follows:

[0049] When installing each set of support mechanisms 1, first insert the support plate 46 into the support groove 461, then fix the first connecting plate 41 to the side wall of the track 5 by the countersunk screw 42, then align the dovetail strip 48 with the dovetail groove 481, move the support seat 2 close to the track 5 in the horizontal direction, so that the positioning plate 47 is inserted into the positioning groove 471, the bottom surface of the connecting rod 43 is in contact with the top surface of the support seat 2, and the top surface of the connecting rod 43 is in contact with the bottom surface of the horizontal section 441 of the second connecting plate 44, and then the connecting screw 45 is passed through the horizontal section 441 of the second connecting plate 44 and threadedly connected to the connecting rod 43, thereby fixing the support seat 2 to the track 5, and fixing the position of the support seat 2 at this time.

[0050] After the position of the support seat 2 is determined, the fixing rod 31 is pressed into the roadbed 6 by a pile driver or other related tools, and then the fixing plate 32 is fixed to the support seat 2 by the fixing screws 33, that is, the fixing rod 31 and the support seat 2 are fixed, and finally, the mounting ear plate 22 is fixed to the roadbed 6 by the mounting screws 221 to make the support seat 2 and the roadbed 6 stably fixed for a second time.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A support device for a prefabricated box girder mobile pedestal track (5), characterized in that: It comprises support mechanisms (1) symmetrically arranged on both sides of the track (5) in the width direction, each group of the support mechanisms (1) comprises a support seat (2), the support seat (2) is fixed to the roadbed (6) via a fixing assembly (3), and the support seat (2) is connected to the side wall of the track (5) via a connecting assembly (4); The fixing assembly (3) comprises two fixing rods (31), the two fixing rods (31) are tilted and arranged in opposite directions, the two fixing rods (31) are staggered, a guide hole (21) for the fixing rods (31) to pass through is arranged on the top surface of the support seat (2), the bottom end of the fixing rod (31) is conical, the bottom end of the fixing rod (31) is drilled into the inside of the roadbed (6), the top end of the fixing rod (31) is fixedly connected to a fixing plate (32), the bottom surface of the fixing plate (32) is in contact with the top surface of the support seat (2), and the fixing plate (32) is fixedly connected to the support seat (2) by a fixing screw (33).

2. A support device for a prefabricated box beam movable pedestal track (5) according to claim 1, characterized in that: The connecting assembly (4) comprises a first connecting plate (41), wherein the first connecting plate (41) is fixedly connected to the side wall of the track (5) by means of countersunk screws (42); a connecting rod (43) is fixedly connected to a side of the first connecting plate (41) away from the track (5); the bottom surface of the connecting rod (43) is in contact with the top surface of the support seat (2); a second connecting plate (44) is arranged on the top surface of the support seat (2); the second connecting plate (44) comprises an integrally formed horizontal section (441) and a vertical section (442); the vertical section (442) is fixedly connected to the support seat (2); and the horizontal section (441) is fixedly connected to the connecting rod (43) by means of connecting screws (45).

3. A support device for a prefabricated box beam movable pedestal track (5) according to claim 2, characterized in that: A support plate (46) is arranged on a surface of the first connecting plate (41) close to the track (5); the support plate (46) is arranged obliquely; an end of the support plate (46) away from the first connecting plate (41) is higher than an end of the support plate (46) close to the first connecting plate (41); a support groove (461) for the support plate (46) to penetrate is provided on the side wall of the track (5); the support groove (461) is also arranged obliquely and is adapted to the degree of inclination of the support plate (46).

4. A support device for a prefabricated box beam movable pedestal track (5) according to claim 2, characterized in that: A positioning plate (47) is horizontally arranged on a surface of the first connecting plate (41) close to the support seat (2), and a positioning groove (471) for the positioning plate (47) to penetrate is provided on a surface of the support seat (2) close to the track (5).

5. A support device for a prefabricated box beam movable pedestal track (5) according to claim 2, characterized in that: A dovetail strip (48) is arranged on the top surface of the support seat (2), and a dovetail groove (481) for the dovetail strip (48) to pass through is opened on the bottom surface of the connecting rod (43), and the dovetail groove (481) passes through both ends of the connecting rod (43) in the length direction.

6. A support device for a prefabricated box beam movable pedestal track (5) according to claim 2, characterized in that: The side of the vertical section (442) away from the horizontal section (441) is inclined from top to bottom in a direction away from the track (5).

7. A support device for a prefabricated box beam movable pedestal track (5) according to claim 1, characterized in that: The cross section of the fixing plate (32) is elliptical, and the major axis of the cross section of the fixing plate (32) is parallel to the length direction of the connecting rod (43).

8. A support device for a prefabricated box beam movable pedestal track (5) according to claim 1, characterized in that: A mounting ear plate (22) is respectively provided at both ends of the support seat (2) in the length direction, and the mounting ear plate (22) is fixed to the roadbed (6) by means of mounting screws (221).

9. A support device for a prefabricated box beam movable pedestal track (5) according to claim 1, characterized in that: The longitudinal section of the support seat (2) is trapezoidal.

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