A fixed frame for transporting bridge steel structure

Abstract

The present invention belongs to the technical field of fixed frames for transportation, and in particular to a fixed frame for transportation of bridge steel structures. The existing fixed frames for transportation of bridge steel structures are aimed at the problem that the protective coating on the steel plate is easily worn during transportation, which reduces the service life of the steel plate and is inconvenient to fix steel plates of different sizes. The following scheme is now proposed, which includes a movable base, and two symmetrical support plates are fixed on the top of the movable base. A fixed box is slidably connected between the two support plates, and guide blocks are fixed on both side walls of the fixed box. The present invention uses an adjustment mechanism and a hand wheel to rotate the one-way screw rod. Since the one-way screw rod is threadedly connected to the lifting plate, the lifting plate can be moved up or down on the slide groove on the inner wall of the fixed box through the slider, and at the same time, the spline sleeve moves up or down on the spline shaft, which is convenient for adjusting the distance between the lifting plate and the fixed plate for steel plates of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of transport fixing frames, and in particular to a transport fixing frame for bridge steel structures. Background Art

[0002] Bridge steel structures are bridges that are mainly built with steel. They have high strength and rigidity. Compared with concrete bridges, they can reduce beam height and deadweight. Steel bridges are manufactured in factories and spliced ​​on site, so the construction period is short.

[0003] The existing fixed frame for transporting bridge steel structures causes multiple steel plates to be stacked together for transportation, which easily causes wear on the protective coating on the steel plates and reduces the service life of the steel plates. It is also inconvenient to fix steel plates of different sizes and has a small scope of use. For this reason, we have designed a fixed frame for transporting bridge steel structures. Summary of the invention

[0004] The invention provides a fixing frame for transporting bridge steel structures, which solves the problem that the existing fixing frame for transporting bridge steel structures easily causes wear on the protective coating on the steel plates during transportation, reduces the service life of the steel plates, and is inconvenient to fix steel plates of different sizes.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The top of the lifting board is provided with a fixing plate, and the fixing plate is connected with the fixing plate by the fixing block, and the fixing plate is connected with the fixing block by the fixing block.

[0007] Preferably, the adjustment mechanism comprises sliding blocks fixed at both ends of the lifting plate, and the inner walls on both sides of the fixed box are provided with sliding grooves matching with the corresponding sliding blocks.

[0008] Preferably, a one-way screw is threadedly connected to the lifting plate, one end of the one-way screw is rotatably connected to the top of the fixed plate, and the other end extends to the top of the fixed box and is fixedly connected to a handwheel.

[0009] Preferably, the adjustable clamping mechanism includes a movable seat fixed at one end of the L-shaped movable plate, a movable groove matching the movable seat is opened on the mounting seat, a corresponding movable plate is fixed at the other end of the movable seat, and movable channels matching the movable plate are respectively opened on the mounting seat and the lifting plate, and the movable channels are connected to the corresponding movable grooves.

[0010] Preferably, the two movable plates on the same mounting seat are both threadedly connected with the same bidirectional screw rod, both ends of the bidirectional screw rod are rotatably connected with support blocks, the support blocks are fixed on the lifting plate and the fixed plate, and the adjacent ends of each bidirectional screw rod corresponding to the lifting plate and the fixed plate extend to the outside of the corresponding support block and are connected to each other, and one end of the bidirectional screw rod on the lifting plate and the fixed plate close to the right inner wall of the fixed box extends to the outside of the corresponding support block and is fixedly connected with a bevel gear.

[0011] Preferably, the fixed plate is rotatably connected to a rotating shaft, a spline shaft is fixed to the top of the rotating shaft, the top of the spline shaft is rotatably connected to the inner top wall of the fixed box, the outer side of the spline shaft is slidably sleeved with a spline sleeve, the spline sleeve is rotatably connected to the lifting plate, the spline sleeve and the outer side of the rotating shaft are fixedly connected with bevel gear 2 meshing with corresponding bevel gear 1, and hand wheel 2 is fixed to the bottom end of the rotating shaft.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the adjustment mechanism of the present invention, through the cooperation of the slider, the slide groove, the one-way screw and the hand wheel, the one-way screw is rotated by the hand wheel. Since the one-way screw is threadedly connected with the lifting plate, the lifting plate can be moved up or down on the slide groove on the inner wall of the fixed box through the slider, and at the same time, the spline sleeve moves up or down on the spline shaft, which is convenient for adjusting the distance between the lifting plate and the fixed plate for steel plates of different sizes, and has a wide range of uses.

[0014] 2. In the adjustable clamping mechanism of the present invention, with the cooperation of the movable seat, movable plate, bidirectional screw, support block, bevel gear one, rotating shaft, spline shaft, spline sleeve, bevel gear two and hand wheel two, the rotating shaft is rotated by hand wheel two, and then the spline sleeve and the spline shaft are rotated at the same time, and under the linkage action of multiple components, the two movable seats on each mounting seat are connected by the clamping plate connected by the L-shaped movable plate to clamp and fix the steel plate, and it is also convenient to clamp and fix steel plates of different thicknesses, further expanding the scope of use of the device. In addition, the device can realize the simultaneous clamping and fixation of multiple steel plates, is simple to operate, brings convenience to users, is flexible and convenient, and is convenient to ensure the stability of the steel plates during transportation.

[0015] 3. In the present invention, with the setting of the support plate, the guide block, the L-shaped bottom plate and the spring, the steel plate can be buffered during transportation through the spring to avoid damage to the coating on the surface of the steel plate caused by vibration, thereby effectively improving the service life of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a front view of a fixing frame for transporting a bridge steel structure proposed by the present invention;

[0017] Figure 2 It is a structural schematic diagram of a partial left side cross-section of an adjustable clamping mechanism of a fixing frame for transporting a bridge steel structure proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the enlarged position A of a fixing frame for transporting a bridge steel structure proposed by the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the enlarged position B of a fixing frame for transporting a bridge steel structure proposed by the present invention;

[0020] Figure 5 This is a schematic structural diagram of an enlarged view of position C of a fixing frame for transporting a bridge steel structure proposed by the present invention.

[0021] In the figure: 1. movable base; 2. support plate; 3. fixed box; 31. guide block; 32. L-shaped bottom plate; 33. spring; 4. lifting plate; 5. fixed plate; 6. mounting seat; 61. guide wheel; 62. L-shaped movable plate; 63. clamping plate; 64. protective pad; 7. adjustment mechanism; 701. slider; 702. slide groove; 703. one-way screw rod; 704. handwheel one; 8. adjustable clamping mechanism; 801. movable seat; 802. movable plate; 803. two-way screw rod; 804. support block; 805. bevel gear one; 806. rotating shaft; 807. spline shaft; 808. spline sleeve; 809. bevel gear two; 810. handwheel two. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-5A fixed frame for transporting a bridge steel structure includes a mobile base 1, a support plate 2, a fixed box 3, a guide block 31, an L-shaped bottom plate 32, a spring 33, a lifting plate 4, a fixed plate 5, a mounting seat 6, a guide wheel 61, an L-shaped movable plate 62, a clamping plate 63, a protective pad 64, an adjustment mechanism 7, a slider 701, a slide groove 702, a one-way screw rod 703, a hand wheel 704, an adjustable clamping mechanism 8, a mobile seat 801, a mobile plate 802, a two-way screw rod 803, a support block 804, a bevel gear The movable base 1 has two symmetrical support plates 2 fixed on the top, a fixed box 3 is slidably connected between the two support plates 2, guide blocks 31 are fixed on both side walls of the fixed box 3, guide grooves matching the corresponding guide blocks 31 are provided on the support plates 2, and two symmetrical L-shaped bottom plates 32 are fixed on the bottom of the fixed box 3, and the bottoms of the L-shaped bottom plates 32 are aligned with the bottom of the movable base 1. A spring 33 is connected to the top, a lifting plate 4 is slidably connected in the fixed box 3, a fixed plate 5 fixed in the fixed box 3 is provided below the lifting plate 4, a plurality of mounting seats 6 are equidistantly installed at the bottom of the lifting plate 4 and the top of the fixed plate 5, a concave cavity is opened on the mounting seat 6, a plurality of guide wheels 61 are equidistantly connected to the concave cavity, two symmetrical L-shaped movable plates 62 are slidably connected to each mounting seat 6, a clamping plate 63 is fixed at one end of the L-shaped movable plate 62, and an anti-locking device is fixed on one side of the clamping plate 63. The protective pad 64 is connected with an adjustment mechanism 7 between the lifting plate 4, the fixed plate 5 and the fixed box 3, and an adjustable clamping mechanism 8 is connected between the lifting plate 4 and the fixed plate 5 and multiple mounting seats 6. Universal wheels with braking function are fixed at the four corners of the bottom end of the mobile base 1, and the pushing handle on the right side wall of the mobile base 1 is used to facilitate the pushing of the device. The protective pad 64 can protect the coating on the surface of the steel plate when the clamping plate 63 clamps the steel plate. The setting of the guide wheel 61 facilitates the loading and unloading of the steel plate.

[0024] Furthermore, the adjustment mechanism 7 includes sliders 701 fixed at both ends of the lifting plate 4, and the inner walls on both sides of the fixed box 3 are provided with sliding grooves 702 that match the corresponding sliders 701. The lifting plate 4 is threadedly connected with a one-way screw rod 703, one end of the one-way screw rod 703 is rotatably connected to the top of the fixed plate 5, and the other end extends to the top of the fixed box 3 and is fixedly connected with a hand wheel 704. The one-way screw rod 703 is rotated by the hand wheel 704, and then the lifting plate 4 threadedly connected to the one-way screw rod 703 can be moved up or down on the fixed box 3, and at the same time, the spline sleeve 808 moves on the spline shaft 807.

[0025] Furthermore, the adjustable clamping mechanism 8 includes a movable seat 801 fixed at one end of the L-shaped movable plate 62, a movable groove matching the movable seat 801 is provided on the mounting seat 6, and a corresponding movable plate 802 is fixed to the other end of the movable seat 801, the cross-sectional length of the movable seat 801 is larger than the cross-sectional length of the L-shaped movable plate 62, and the cross-sectional length of the movable plate 802 is smaller than the cross-sectional length of the movable seat 801, and the mounting seat 6 and the lifting plate 4 are respectively provided with movable channels matching the movable plate 802, and the movable channels are connected to the corresponding movable grooves, and the two movable plates 802 on the same mounting seat 6 are both threadedly connected with the same bidirectional screw rod 803, and both ends of the bidirectional screw rod 803 are rotatably connected with support blocks 804, and the support blocks 804 are fixed on the lifting plate 4 and the fixed plate 5, and the corresponding adjacent one of each bidirectional screw rod 803 on the lifting plate 4 and the fixed plate 5 The ends of the two-way screw rods 803 on the lifting plate 4 and the fixed plate 5, which are close to the inner wall of the right side of the fixed box 3, are extended to the outside of the corresponding support block 804 and fixed with a bevel gear 805. The fixed plate 5 is rotatably connected with a rotating shaft 806, and the top of the rotating shaft 806 is fixed with a spline shaft 807. The top of the spline shaft 807 is rotatably connected to the inner top wall of the fixed box 3, and the outer side of the spline shaft 807 slides The movable sleeve is connected with a spline sleeve 808, and the spline sleeve 808 is rotatably connected to the lifting plate 4. The spline sleeve 808 and the outer side of the rotating shaft 806 are fixedly connected with bevel gear 2 809 meshing with the corresponding bevel gear 1 805. A handwheel 2 810 is fixed to the bottom end of the rotating shaft 806. Six groups of mounting seats 6 are provided on the lifting plate 4 and the fixed plate 5, and then six groups of bidirectional screw rods 803 are provided. Every twelve groups of support blocks 804 are fixed on the lifting plate 4 and the fixed plate 5.

[0026] Working principle: when the user needs to adjust the height of the lifting plate 4 according to the size of the bridge steel plate, the user can then rotate the one-way screw rod 703 through the hand wheel 1 704. Since the one-way screw rod 703 is threadedly connected to the lifting plate 4, the lifting plate 4 can be moved up or down on the slide groove 702 on the inner wall of the fixed box 3 through the slider 701, which is convenient for adjusting the distance between the lifting plate 4 and the fixed plate 5 for steel plates of different sizes, and is convenient for fixing steel plates of different sizes. It has a wide range of uses. In addition, the steel plates can be inserted in turn between the two clamping plates 63 corresponding to the two mounting seats 6 on the lifting plate 4 and the fixed plate 5, and the rotating shaft 806 is rotated through the hand wheel 2 810, so that the spline sleeve 808 and its spline shaft 807 rotate at the same time, and the two bevel gears The two 809 rotate simultaneously and transmit the corresponding and mutually connected bidirectional screw rods 803 through the corresponding bevel gear one 805. Since each bidirectional screw rod 803 is threadedly connected to the two corresponding movable plates 802, the two movable seats 801 on each mounting seat 6 can clamp and fix their steel plates through the clamping plate 63 connected by the L-shaped movable plate 62, and it is also convenient to clamp and fix steel plates of different thicknesses, further expanding the scope of use of the device. The device can clamp and fix multiple steel plates at the same time, is simple to operate, brings convenience to users, is flexible and convenient, and is convenient to ensure the stability of the steel plates during transportation. Under the setting of the spring 33, the steel plates can be buffered during transportation to avoid vibration that causes damage to the coating on the surface of the steel plates and affects the service life of the steel plates.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixed frame for transporting a bridge steel structure, comprising a mobile base (1), characterized in that: The top of the mobile base (1) is fixed with two symmetrical support plates (2), a fixed box (3) is slidably connected between the two support plates (2), guide blocks (31) are fixed on both side walls of the fixed box (3), the support plates (2) are provided with guide grooves matching the corresponding guide blocks (31), the bottom of the fixed box (3) is fixed with two symmetrical L-shaped bottom plates (32), the bottoms of the L-shaped bottom plates (32) are connected to the top of the mobile base (1) with springs (33), a lifting plate (4) is slidably connected in the fixed box (3), a fixed plate (5) fixed in the fixed box (3) is provided below the lifting plate (4), and the lifting plate A plurality of mounting seats (6) are equidistantly mounted at the bottom of the mounting seat (4) and the top of the fixed plate (5), each mounting seat (6) is provided with a concave cavity, and a plurality of guide wheels (61) are equidistantly rotatably connected in the concave cavity, and each mounting seat (6) is slidably connected to two symmetrical L-shaped movable plates (62), one end of each L-shaped movable plate (62) is fixed with a clamping plate (63), and one side of each clamping plate (63) is fixedly connected with a protective pad (64), an adjustment mechanism (7) is connected between the lifting plate (4), the fixed plate (5) and the fixed box (3), and an adjustable clamping mechanism (8) is connected between the lifting plate (4), the fixed plate (5) and the plurality of mounting seats (6); The adjusting mechanism (7) comprises sliding blocks (701) fixed at both ends of the lifting plate (4), and the inner walls on both sides of the fixed box (3) are provided with sliding grooves (702) matching with the corresponding sliding blocks (701); A one-way screw rod (703) is threadedly connected to the lifting plate (4), one end of the one-way screw rod (703) is rotatably connected to the top of the fixed plate (5), and the other end extends to the top of the fixed box (3) and is fixedly connected to a hand wheel (704); The adjustable clamping mechanism (8) comprises a movable seat (801) fixed to one end of the L-shaped movable plate (62), a movable groove matching the movable seat (801) is provided on the mounting seat (6), a corresponding movable plate (802) is fixed to the other end of the movable seat (801), and a movable channel matching the movable plate (802) is provided on the mounting seat (6) and the lifting plate (4), respectively, and the movable channels are connected to the corresponding movable grooves; The two movable plates (802) on the same mounting seat (6) are both threadedly connected with the same bidirectional screw rod (803), and both ends of the bidirectional screw rod (803) are rotatably connected with support blocks (804). The support blocks (804) are fixed on the lifting plate (4) and the fixed plate (5). The adjacent ends of each bidirectional screw rod (803) on the lifting plate (4) and the fixed plate (5) extend to the outside of the corresponding support block (804) and are connected to each other. The ends of the bidirectional screw rods (803) on the lifting plate (4) and the fixed plate (5) close to the right inner wall of the fixed box (3) extend to the outside of the corresponding support block (804) and are fixedly connected with a bevel gear (805).

2. A fixing frame for transporting a bridge steel structure according to claim 1, characterized in that: The fixed plate (5) is rotatably connected to a rotating shaft (806), a spline shaft (807) is fixed to the top of the rotating shaft (806), the top of the spline shaft (807) is rotatably connected to the inner top wall of the fixed box (3), a spline sleeve (808) is slidably sleeved on the outer side of the spline shaft (807), the spline sleeve (808) is rotatably connected to the lifting plate (4), the spline sleeve (808) and the outer side of the rotating shaft (806) are both fixedly connected to bevel teeth (809) (809) meshing with corresponding bevel teeth (805), and a hand wheel (810) is fixed to the bottom end of the rotating shaft (806).

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