Prefabricated bridge pier column turnover mechanism

Abstract

The prefabricated bridge pier column turnover mechanism is characterized in that a prefabricated part can be placed in a tray cavity of a tray, and a gap exists between the outer wall of the prefabricated part and the inner wall of the tray; the part, away from the tray cavity, of the tray is rotationally connected to the base. The wedge-caulking assembly penetrates through at least three side plates, away from the outer wall of the prefabricated part, of the tray, can stretch into the gap and can wedge the prefabricated part in the tray cavity of the tray when the prefabricated part is vertically placed in or taken out of the tray cavity of the tray. In the horizontal transportation process, a wedge-caulking assembly is arranged in a gap between the tray and the prefabricated part, the prefabricated part is restrained in a tray cavity of the tray, the situation that the prefabricated part jumps in the tray cavity due to the complexity of the transportation environment is avoided, and therefore it is guaranteed that the surface of the prefabricated part and the tray are in a relatively static state in the transportation process; in the overturning operation, the wedge-caulking piece abuts against the outer wall of the prefabricated part, the relative position of the prefabricated part and the tray support is limited, the prefabricated part is prevented from being rubbed with the inner wall of the tray, meanwhile, guiding is provided for hoisting operation of the prefabricated part, and stable hoisting operation of the prefabricated part is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of bridge erection equipment, and particularly to a precast bridge pier turning mechanism. Background Art

[0002] When constructing bridges such as railways or highways, the superstructures such as bridge decks and the substructures such as bridge piers are usually constructed separately. First, the substructure is completed and then the superstructure is constructed. With the progress of construction technology, in the construction of the lower part of bridges and other buildings in the prior art, the method of pre-constructing precast components is mostly adopted. First, the bridge piers are prefabricated, then the precast bridge piers are transported to the construction site, and then the precast bridge piers are transported to the installation position for installation through pier gates.

[0003] During the construction of precast bridge piers, the precast bridge piers are transported lying flat, and there is a gap between the precast bridge piers and the bearing members. Due to the complexity of the transportation environment during the transportation of the precast bridge piers, the precast bridge piers bounce in the bearing members; during the process of turning the precast bridge piers from the lying state to the state perpendicular to the ground by workers or lifting machines, the precast bridge piers are in a free state in the bearing members, resulting in the outer walls of the precast bridge piers colliding with the bearing members, exacerbating the damage to the outer walls of the precast bridge piers.

[0004] Therefore, there is an urgent need for a new precast bridge pier turning mechanism to solve the above defects. Summary of the Utility Model

[0005] By providing a precast bridge pier turning mechanism in the embodiments of this application, while ensuring the normal turning operation of the precast bridge piers, the integrity of the surfaces of the precast bridge piers is improved.

[0006] To achieve the above object, the embodiments of this application provide the following technical solutions:

[0007] A precast bridge pier turning mechanism includes a tray, a base, and a wedging component;

[0008] The cavity of the tray can place precast components, and there is a gap between the outer wall of the precast component and the inner wall of the tray;

[0009] The part of the tray away from the cavity is rotatably connected to the base;

[0010] The wedging component passes through at least three side plates of the tray away from the outer wall of the precast component and can extend into the gap, and can wedge the precast component in the cavity of the tray when the precast component is vertically placed into or taken out of the cavity of the tray.

[0011] Further, the wedging component includes a wedging rod and a ball;

[0012] The wedging rod passes through at least three side plates of the tray away from the outer wall of the precast component, and the wedging rod is threadedly connected to the side plates;

[0013] The ball is arranged at one end of the wedging rod close to the outer wall of the prefabricated member. The ball is movably connected to the wedging rod, and a part of the end face of the ball abuts against the outer wall of the prefabricated member.

[0014] Further, a spherical groove is formed at one end of the wedging rod close to the prefabricated member. The ball is embedded in the cavity of the spherical groove and is slidably connected to the spherical groove.

[0015] Further, the wedging rod is a stepped rod with one section wide and one section narrow. The small-diameter section of the wedging rod is a smooth surface, and its length is the same as the length of the gap; the large-diameter section of the wedging rod is a threaded surface, and its length is the same as the thickness of the side plate.

[0016] Further, a plurality of threaded holes are uniformly formed in the side plate along the plate thickness direction. The hole wall of the threaded hole is threadedly connected to the large-diameter section of the wedging rod, and the hole diameter of the threaded hole is the same as the rod diameter of the large-diameter section of the wedging rod.

[0017] Further, at least two bearings are arranged at intervals along the width direction of the bottom of the tray. Roller supports are fixedly arranged at intervals on the top of the base. The roller surfaces of the roller supports are arranged in the same direction as the bearings, and the roller surfaces of the roller supports pass through the bearings and are rotationally connected to the bearings.

[0018] Further, a reinforcing plate is arranged between the bearing and the tray. One side surface of the reinforcing plate is fixedly connected to the bottom surface of the tray, and the other side surface of the reinforcing plate away from the tray is fixedly connected to the bearing.

[0019] Further, roller seats are respectively fixedly connected to both sides of the roller support along the length direction; the roller seat includes a horizontal section and a vertical section. The horizontal section is screwed to the upper end surface of the base, and the vertical section is fixedly connected to the end surface of the roller support.

[0020] Further, the height of the vertical section is greater than or equal to half of the width of the tray.

[0021] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0022] During the horizontal transportation process, a wedging assembly is arranged in the gap between the tray and the prefabricated member to confine the prefabricated member in the cavity of the tray, avoiding the prefabricated member jumping in the cavity due to the complexity of the transportation environment, such as uneven road surfaces and vibrations of the transportation tool itself, so as to ensure that the surface of the prefabricated member is relatively stationary with respect to the tray during transportation; during the flipping operation, the part of the tray away from the cavity is rotatably connected to the base, facilitating the staff to rotate the prefabricated member in the tray from a lying posture to a vertical posture. The wedging member abuts against the outer wall of the prefabricated member, restricting the relative position between the prefabricated member and the tray support, avoiding rubbing between the prefabricated member and the inner wall of the tray and providing guidance for the hoisting operation of the prefabricated member, ensuring the stable hoisting operation of the prefabricated member. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments of the present invention or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Schematic diagram of the assembly structure when the prefabricated part provided by the embodiment of the present application is in a horizontal state;

[0025] Figure 2 Schematic diagram of the assembly structure when the prefabricated part provided by the embodiment of the present application is in a vertical state;

[0026] Figure 3 Front view of the wedge tightening assembly provided by the embodiment of the present application;

[0027] Figure 4 Schematic diagram of the structure of the wedge tightening assembly in a sectional state provided by the embodiment of the present application;

[0028] Figure 5 Schematic diagram of the structure of the wedge tightening rod provided by the embodiment of the present application;

[0029] Figure 6 Assembly diagram of the wedge tightening assembly and the side plate provided by the embodiment of the present application.

[0030] Icon: 1 - prefabricated part; 10 - base; 11 - idler roller; 12 - roller seat; 121 - horizontal section; 122 - vertical section; 20 - tray; 21 - side plate; 22 - threaded hole; 23 - bearing; 24 - reinforcing plate; 30 - wedge tightening rod; 31 - spherical groove; 32 - ball. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, rather than all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0032] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] Combined with Figures 1-6 As shown, a precast bridge pier flipping mechanism includes a tray 20, a base 10, and a wedging component; the cavity of the tray 20 can place the precast member 1, and there is a gap between the outer wall of the precast member 1 and the inner wall of the tray 20; the part of the tray 20 away from the cavity is rotatably connected to the base 10; the wedging component passes through at least three side plates 21 of the tray 20 away from the outer wall of the precast member 1 and can extend into the gap, and can wedge the precast member 1 in the cavity of the tray 20 when the precast member 1 is vertically placed into or taken out of the cavity of the tray 20.

[0034] The precast bridge pier flipping mechanism in this application is applied to the flipping operation of precast bridge piers from a horizontal state to a vertical state, and can also be used for the flipping operation of precast column members of different volumes. It should be noted that the precast member 1 in this application is a bridge pier with an overall structure in the shape of a T or Y. The bottom of the bridge pier is usually square or circular. Due to its large self-weight, it is usually transported in a lying posture. During the horizontal transportation process, a wedging component is arranged in the gap between the tray 20 and the precast member 1 to restrain the precast member 1 in the cavity of the tray 20, avoiding the precast member 1 from jumping in the cavity due to the complexity of the transportation environment, such as uneven road surface and vibration of the transportation tool itself, so as to ensure that the surface of the precast member 1 is relatively stationary with respect to the tray 20 during transportation; during the flipping operation, the part of the tray 20 away from the cavity is rotatably connected to the base, which is convenient for the staff to rotate the precast member 1 in the tray 20 from a lying posture to a vertical posture. The end of the wedging member abuts against the outer wall of the precast member 1, restricting the relative position between the precast member 1 and the bracket of the tray 20, avoiding the scraping between the precast member 1 and the inner wall of the tray 20 and providing guidance for the lifting operation of the precast member 1, ensuring the stable lifting operation of the precast member 1.

[0035] The power source of this application is an external crane. The crane is fixed to one end of the prefabricated component 1 relative to the tray 20 using a lifting rope, and then the prefabricated component 1 is lifted. During the hoisting operation, the bottom of the prefabricated component 1 has no contact with the ground, reducing the wear rate of the prefabricated component 1.

[0036] The wedging assembly includes a wedging rod 30 and a ball 32; the wedging rod 30 passes through at least three side plates 21 of the tray 20 away from the outer wall of the prefabricated component 1, and the wedging rod 30 is threadedly connected to the side plates 21; the ball 32 is arranged at one end of the wedging rod 30 close to the outer wall of the prefabricated component 1, the ball 32 is movably connected to the wedging rod 30, and a part of the end face of the ball 32 abuts against the outer wall of the prefabricated component 1.

[0037] The wedging assembly in this application is composed of a wedging rod 30 and a ball 32. The wedging rods 30 are respectively arranged on three side plates 21 of the tray 20, forming a three-point constraint on the prefabricated component 1 in the cavity of the tray 20, and well restricting the movement posture of the prefabricated component 1 in the cavity of the tray 20. The ball 32 is in a movable posture on the wedging rod 30, and a part of the end face of the ball 32 abuts against the outer wall of the prefabricated component 1. This setting can ensure that during the process of the prefabricated component 1 in a vertical posture after flipping and detaching from the tray 20, the ball 32 can not only still effectively restrain the prefabricated component 1, but also the spherical surface of the ball 32 can have a sliding friction with the outer wall of the prefabricated component 1 to reduce the damage degree of the surface of the prefabricated component 1.

[0038] To ensure that the ball 32 can be movably connected to the wedging rod 30, a spherical groove 31 is opened at one end of the wedging rod 30 close to the prefabricated component 1, and the inner wall of the spherical groove 31 is a smooth surface; the ball 32 is embedded in the cavity of the spherical groove 31, and the spherical surface of the ball 32 is slidably connected to the groove wall of the spherical groove 31; the orifice area of the spherical groove 31 is smaller than the diameter of the ball 32. The purpose of this setting is to be able to restrain the ball 32 in the spherical groove 31, avoid large-amplitude bouncing of the ball 32 in the spherical groove 31, and thus be able to stably restrain the prefabricated component 1.

[0039] The wedging rod 30 is a stepped rod with one section wide and one section narrow. The circumferential surface of the small-diameter section of the wedging rod 30 is a smooth surface, and its length is the same as the length of the gap; the circumferential surface of the large-diameter section of the wedging rod 30 is a threaded surface, and its length is the same as the thickness of the side plate 21.

[0040] The wedging rod 30 in this application is a stepped rod. The circumferential surface of the large-diameter section being a threaded surface is for facilitating the connection with the side plate 21. The staff can threadedly connect the wedging rod 30 and the side plate 21 manually or using tools, so that the small-diameter section extends into the gap while fixing the wedging rod 30 on the side plate 21. The setting of the small-diameter section also facilitates the wedging rod 30 to pass through the side plate 21, eliminating the need for the staff to calibrate the docking of the wedging rod 30 and the side plate 21 multiple times and reducing the labor intensity of the staff.

[0041] The side plate 21 is evenly provided with a plurality of threaded holes 22 in the plate thickness direction. The hole wall of the threaded hole 22 is threadedly connected to the large-diameter section of the wedging rod 30, and the hole diameter of the threaded hole 22 is the same as the rod diameter of the large-diameter section of the wedging rod 30. The purpose of such a setting is to facilitate the setting of a plurality of wedging rods 30 on the same side plate 21 to improve the constraint of the wedging rod 30 on the outer wall of the prefabricated member 1. The threaded connection between the side plate 21 and the wedging rod 30 facilitates the installation and disassembly of the wedging rod 30.

[0042] At least two bearings 23 are arranged at intervals along the width direction of the bottom of the tray 20. The top of the base 10 is fixedly provided with idler rollers 11 at intervals. The idler rollers 11 are arranged in the same direction as the bearings 23, and the roller surface of the idler roller 11 passes through the bearing 23 and is rotatably connected to the bearing 23.

[0043] In this application, the flipping of the prefabricated member 1 is realized by the rotational connection between the bearing 23 fixed to the bottom of the tray 20 and the idler roller 11 on the base 10. The base 10 of this application can be an independent workbench or a vehicle-mounted platform. The idler roller 11 is fixedly connected to the base 10 to limit the relative position of the tray 20 to ensure the stable connection between the tray 20 and the base 10. The number of bearings 23 in this application is 3. The purpose of such a setting is to ensure the stable connection between the tray 20 and the idler roller 11 while preventing the tray 20 from swinging left and right on the base 10.

[0044] A reinforcing plate 24 is arranged between the bearing 23 and the tray 20. One side surface of the reinforcing plate 24 is fixedly connected to the bottom surface of the tray 20, and the side surface of the reinforcing plate 24 away from the tray 20 is fixedly connected to the bearing 23. In the above scheme, the setting of the reinforcing plate 24 not only enhances the modal strength of the tray 20 and avoids the stress generated by the weight of the prefabricated member 1 during the flipping process, but also improves the stable connection between the bearing 23 and the tray 20.

[0045] Idler roller seats 12 are respectively fixedly connected to both sides of the idler roller 11 along the length direction; the idler roller seat 12 includes a horizontal section 121 and a vertical section 122. The horizontal section 121 is screwed to the base 10, and the vertical section 122 is fixedly connected to the end face of the idler roller 11.

[0046] The setting of the idler roller seat 12 can improve the supporting ability of the idler roller 11 for the tray 20 and avoid the separation of the tray 20 from the idler roller 11 due to the stress generated by the weight of the prefabricated member 1 itself. Among them, the screwing connection between the horizontal section 121 and the base 10 not only simplifies the installation operation of the flipping mechanism of the prefabricated bridge pier in this application, but also enriches the application environment of the flipping mechanism of the prefabricated bridge pier in this application.

[0047] The height of the vertical section 122 is greater than or equal to half of the width of the tray 20. The purpose of such a setting is to facilitate the rotation of the tray 20 around the idler roller 11 to realize the flipping operation of the prefabricated member 1, and at the same time avoid the vertical section 122 interfering with the tray 20 and preventing the tray 20 from being flipped by 90° due to the ground clearance of the vertical section 122 being less than the tray 20.

[0048] In addition, a protective plate may be additionally provided at the top of the tray 20 in this application. The cross-sectional shape of the protective plate is consistent with the cross-sectional contour of the tray 20. One end of the protective plate and the top edge of the tray 20 can be fixed in a form of welding or threaded connection, further expanding the protection of the tray 20 for the peripheral surface of the prefabricated member 1 (bridge pier) vertical section in this application, thereby improving the integrity of the peripheral surface of the prefabricated member 1.

[0049] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0050] The above embodiments are only used to illustrate the technical solutions of this application, rather than limiting this application; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A precast bridge pier turning mechanism, characterized in that It includes a tray (20), a base (10), and a wedging component; The cavity of the tray (20) can place a prefabricated part (1), and there is a gap between the outer wall of the prefabricated part (1) and the inner wall of the tray (20); The part of the tray (20) away from the cavity is rotatably connected to the base (10); The wedging piece of the wedging component passes through at least three side plates (21) of the tray (20) away from the outer wall of the prefabricated part (1), and can extend into the gap and abut against the outer wall of the prefabricated part (1), and can wedge the prefabricated part (1) in the cavity of the tray (20) when the prefabricated part (1) is vertically placed into or taken out of the cavity of the tray (20).

2. The precast bridge pier turning mechanism according to claim 1, characterized in that, The wedging component includes a wedging rod (30) and a ball (32); The wedging rod (30) passes through at least three side plates (21) of the tray (20) away from the outer wall of the prefabricated part (1), and the wedging rod (30) is threadedly connected to the side plate (21); The ball (32) is arranged at one end of the wedging rod (30) close to the outer wall of the prefabricated part (1), the ball (32) is movably connected to the wedging rod (30), and a part of the end face of the ball (32) abuts against the outer wall of the prefabricated part (1).

3. The precast bridge pier turning mechanism according to claim 2, characterized in that, A spherical groove (31) is opened at one end of the wedging rod (30) close to the prefabricated part (1), and the inner wall of the spherical groove (31) is a smooth surface; The ball (32) is embedded in the cavity of the spherical groove (31), and the spherical surface of the ball (32) is slidably connected to the groove wall of the spherical groove (31); the mouth area of the spherical groove (31) is smaller than the diameter of the ball (32).

4. The precast bridge pier turning mechanism according to claim 2, characterized in that, The wedging rod (30) is a stepped rod with one section wide and one section narrow. The small-diameter section of the wedging rod (30) is a smooth surface, and its length is the same as the length of the gap; the large-diameter section of the wedging rod (30) is a threaded surface, and its length is the same as the thickness of the side plate (21).

5. The precast bridge pier overturning mechanism according to claim 4, characterized in that, A plurality of threaded holes (22) are uniformly opened in the side plate (21) along the plate thickness direction. The hole wall of the threaded hole (22) is threadedly connected to the large-diameter section of the wedging rod (30), and the hole diameter of the threaded hole (22) is the same as the rod diameter of the large-diameter section of the wedging rod (30).

6. The precast bridge pier turning mechanism according to claim 1, characterized in that, At least two bearings (23) are arranged at intervals along the width direction at the bottom of the tray (20). Roller supports (11) are fixedly arranged at intervals on the top of the base (10). The roller supports (11) are arranged in the same direction as the bearings (23), and the roller surface of the roller supports (11) passes through the bearings (23) and is rotatably connected to the bearings (23).

7. The precast bridge pier overturning mechanism according to claim 6, characterized in that, A reinforcing plate (24) is arranged between the bearing (23) and the tray (20). One side surface of the reinforcing plate (24) is fixedly connected to the bottom surface of the tray (20), and the side surface of the reinforcing plate (24) away from the tray (20) is fixedly connected to the bearing (23).

8. The precast bridge pier turnover mechanism according to claim 6, characterized in that, Both sides of the idler roller (11) along the length direction are fixedly connected with roller seats (12) respectively; the roller seats (12) include a horizontal section (121) and a vertical section (122), the horizontal section (121) is screwed to the upper end surface of the base (10), and the vertical section (122) is fixedly connected to the end surface of the idler roller (11).

9. The precast bridge pier turning mechanism according to claim 8, wherein, The height of the vertical section (122) is greater than or equal to one half of the width of the tray (20).

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