Adjusting and reinforcing mechanism for bent cap hoop

Abstract

The utility model provides a cover beam hoop adjusting and reinforcing mechanism which comprises a cover beam column vertically fixed to the surface of a foundation. The cover beam frame is horizontally erected on the top of the cover beam column; the annular hoop body is arranged on the outer wall of the cover beam column in a sleeving mode, the two sides of the annular hoop body extend outwards in the radial direction to form symmetrical supporting parts, and the upper surfaces of the supporting parts are provided with plane supporting faces for bearing the cover beam frame; the ring-shaped base sleeves the joint of the cover beam column and the foundation, and the lower end surface of the ring-shaped base is contacted with the surface of the foundation; the vertical adjusting supporting mechanism comprises a first connecting rod vertically fixed under the supporting part and an adjusting column in threaded connection with the bottom of the first connecting rod, the bottom face of the adjusting column and a vertical rotating hole in the top face of the base form a rotatable connecting pair through a rotating column, and conversion from rotating motion of the adjusting column to vertical displacement of the first connecting rod is achieved; and an anti-rotation structure. The cover beam hoop adjusting and reinforcing mechanism solves the problems that according to an existing cover beam hoop, the elevation of a cover beam frame is difficult to calibrate quickly and accurately, and no support exists in the axial direction.

Description

Technical Field

[0001] This utility model relates to the field of bridge cap beam manufacturing, specifically to a cap beam clamp adjustment and reinforcement mechanism. Background Technology

[0002] In bridge engineering, the cap beam, as a key load-bearing component supporting the superstructure, directly impacts project quality and safety through its support and reinforcement techniques during construction. However, the traditional clamp-based support system commonly used in cap beam construction has significant drawbacks: First, it lacks adjustment precision and construction efficiency. Height adjustment relies on external jacks or wedge blocks, requiring repeated disassembly and reassembly of clamps and support components for sequential adjustments. This process is cumbersome, prone to errors, and lacks an integrated vertical adjustment mechanism, making it difficult to quickly and accurately calibrate the cap beam elevation. During multi-span continuous construction, accumulated errors can easily lead to deviations in beam alignment from design requirements, increasing subsequent beam adjustment costs. Furthermore, existing cap beam clamps generally use radial clamping force for fixation, lacking axial support mechanisms, which can easily create safety hazards. Summary of the Invention

[0003] The problem this utility model aims to solve is to provide a girder clamp adjustment and reinforcement mechanism that addresses the issues of existing girder clamps being unable to quickly and accurately calibrate the girder frame elevation and lacking axial support.

[0004] The technical solution adopted by this utility model to solve the above problems is: a girder clamp adjustment and reinforcement mechanism, comprising:

[0005] A cap beam column is vertically fixed to the foundation surface; a cap beam frame is horizontally erected on top of the cap beam column; an annular clamp body is fitted onto the outer wall of the cap beam column, with its two sides extending radially outward to form symmetrical support parts, the upper surface of the support parts having a planar support surface for supporting the cap beam frame; a circular base is fitted onto the connection between the cap beam column and the foundation, with its lower end face contacting the foundation surface; a vertical adjustment support mechanism includes a first connecting rod vertically fixed directly below the support part and an adjustment column threadedly connected to the bottom of the first connecting rod, the bottom surface of the adjustment column forming a rotatable connection pair through a rotating column and a vertical rotating hole on the top surface of the base, realizing the conversion of the rotational movement of the adjustment column to the vertical displacement of the first connecting rod; an anti-rotation structure is used to limit the rotation of the adjustment column.

[0006] A cap beam frame is horizontally erected on top of the cap beam column, which is vertically fixed to the foundation. A ring-shaped clamp is fitted onto the outer wall of the cap beam column, and the planar support surfaces of the side supports bear the cap beam frame. A circular base is fitted onto the connection between the cap beam column and the foundation, forming the bottom support foundation. In the vertical adjustment support mechanism, a first connecting rod, vertically fixed below the support, is threadedly connected to an adjusting column. The adjusting column forms a rotating pair with the rotating hole of the base through a rotating column. By rotating the adjusting column, the rotational motion can be converted into the vertical displacement of the first connecting rod. The precision of the threaded transmission allows for millimeter-level elevation adjustment of the cap beam frame. The system allows for rapid adjustment, avoiding the tediousness and errors associated with traditional shim adjustments. Simultaneously, the anti-rotation structure restricts the rotation of the adjusting column after elevation calibration. Together with the base, it transfers the load of the cap beam frame to the foundation through the support, first connecting rod, adjusting column, and rotating column, forming a rigid vertical support chain. This compensates for the shortcomings of traditional clamps that rely solely on sidewall friction for load bearing. The base and clamp body provide bidirectional axial constraint on the cap beam column, suppressing movement and ensuring stable axial support. This enhances the structure's anti-overturning and seismic performance, achieving highly efficient and precise elevation adjustment and reliable and stable axial support.

[0007] Furthermore, the anti-rotation structure includes:

[0008] Fixed protruding ring: Extends radially outward along the bottom of the adjusting column, and has two semi-circular arc-shaped sliding grooves symmetrically arranged on its outer edge, namely the first fixed groove and the second fixed groove;

[0009] The arc angle of the first fixing groove is 180°~270°, its center coincides with the axis of the adjusting column and its radius is R1;

[0010] The arc angle of the second fixing groove is 180°~270°, its center coincides with the axis of the adjusting column and its radius is R2, and it satisfies R1>R2;

[0011] Locking components:

[0012] The top surface of the base has two sets of threaded holes pre-set along the circumference, and the position of each set of threaded holes corresponds to the sliding track of the first fixed groove or the second fixed groove.

[0013] The first and second fixing grooves are staggered in the circumferential direction, and their coverage areas are complementary, so that when the adjusting column is rotated to any angle, at least one groove is aligned with the threaded hole of the base. The locking screw can selectively pass through the groove area of ​​the first or second fixing groove and screw into the threaded hole of the base. The circumferential rotation of the adjusting column is restricted by the pressure and friction between the head of the locking screw and the contact surface of the fixing convex ring.

[0014] The first and second fixing grooves are circumferentially offset and their coverage areas are complementary, ensuring that at least one slide is aligned with the threaded hole of the base when the adjusting column is rotated to any angle. It can be locked without deliberately rotating to a specific scale, solving the problem of "precise alignment" required by traditional anti-rotation structures and greatly improving the convenience of construction.

[0015] Furthermore, the clamp body is composed of two symmetrically arranged annular clamp pieces. The open ends of the two clamp pieces are arranged opposite each other to close and surround the cap beam column. The two sides of the open ends extend radially outward to form a pair of opposite connecting ears. A semi-circular groove is provided on the inner contact surface of the connecting ears.

[0016] When the two clamping plates close and surround the cap beam column, the two connecting ears of each clamping plate are radially symmetrically coupled with the corresponding connecting ears of the other clamping plate, forming two independent support parts on the left and right sides; the semi-circular grooves on the inner side of the paired coupled connecting ears close to form a coaxial cylindrical limiting channel, the axis of which is perpendicular to the axis of the cap beam column and parallel to the extension direction of the cap beam frame; the top end of the first connecting rod is embedded in each limiting channel, and the arc surface of the semi-circular groove applies radial constraint to the rod body, while the locking bolt passes through the connecting ear and the vertical limiting hole at the top of the rod body to form an axial anti-shear locking.

[0017] Two symmetrical clamping plates are coupled through open-end connecting ears, allowing for quick assembly and disassembly, and can be closed around the cap beam column to accommodate cap beams of different diameters, offering strong versatility. The cylindrical limiting channel formed by the closed semi-circular groove inside the connecting ear radially constrains the first connecting rod, automatically aligning the rod axis and ensuring the verticality accuracy of elevation adjustments. Locking bolts pass through the connecting ear and the limiting hole at the top of the rod, forming an axial shear-resistant node that effectively resists the upward pull or shear force generated by the horizontal load on the cap beam frame, preventing the first connecting rod from detaching from the support. Simultaneously, the coaxial design of the limiting channel and the semi-circular groove constraint suppress radial swaying of the rod, improving the overall rigidity of the support system.

[0018] Furthermore, the middle part of the first connecting rod protrudes radially outward to form a support ring, and the upper end face of the support ring abuts against the bottom surface of the support part. The upper end face of the support ring rigidly abuts against the bottom surface of the support part to prevent the thread at the top of the rod from slipping or deforming due to direct pressure.

[0019] Furthermore, the base includes two semicircular rings, with their open ends facing each other and their ends extending vertically upward to form symmetrical connecting flanges. The connecting flanges are provided with coaxial mounting holes. In the closed state, the two semicircular rings are connected to form a ring-shaped structure by fasteners passing through the mounting holes. Their inner contact surfaces are in close contact with the outer wall of the cap beam column, and their lower end surfaces are flat against the foundation surface to distribute the vertical load.

[0020] Two semicircular rings can be quickly assembled into a circular shape through the assembly holes of the connecting flange. They can be manually transported and installed without hoisting equipment, making them especially suitable for narrow spaces or high-altitude operations. The inner contact surface is in close contact with the outer wall of the cap beam column. The spacing between the semicircular rings can be adjusted to adapt to different column diameters, making it more versatile than an integral base. Attached Figure Description

[0021] Figure 1 This is a side view of the present invention;

[0022] Figure 2 This is a perspective view of the present utility model;

[0023] Figure 3 This is a partial exploded perspective view of this utility model.

[0024] Diagram: 1. Cap beam column; 2. Cap beam frame; 3. Annular clamp body; 3.1. Support part; 3.2. Clamp plate; 3.3. Connecting ear; 3.4. Semicircular groove; 3.6. Locking bolt; 3.7. Vertical limiting hole; 4. Base; 4.1. Semicircular ring; 4.2. Connecting flange; 4.3. Assembly hole; 4.4. Fastener; 5. Vertical adjustment support mechanism; 5.1. First connecting rod; 5.1.1. Supporting protrusion ring; 5.2. Adjusting column; 5.3. Rotating column; 6. Anti-rotation structure; 6.1. Fixing protrusion ring; 6.2. First fixing groove; 6.3. Second fixing groove; 6.4. Locking assembly; 6.4.1. Threaded hole; 6.4.2. Locking screw. Detailed Implementation

[0025] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0026] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0027] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

[0028] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0029] Please see Figures 1 to 3A girder clamp adjustment and reinforcement mechanism includes a girder column 1 vertically fixed to the foundation surface, a girder frame 2 horizontally erected on top of the girder column 1, and an annular clamp body 3 fitted onto the outer wall of the girder column 1. The clamp body consists of two symmetrically arranged annular clamp pieces 3.2. The open ends of the two clamp pieces 3.2 are positioned opposite each other to close and surround the girder column 1. Both sides of their open ends extend radially outward to form a pair of opposing connecting ears 3.3. A semi-circular groove 3.4 is provided on the inner contact surface of the connecting ears 3.3. When the two clamp pieces 3.2 close and surround the girder column 1, the two connecting ears 3.3 of each clamp piece 3.2 are radially symmetrically coupled to the corresponding connecting ears 3.3 of the other clamp piece 3.2, forming two independent left and right support parts 3. 1. The inner semi-circular groove 3.4 of the paired coupling connecting ear 3.3 closes to form a coaxial cylindrical limiting channel. The axis of the channel is perpendicular to the axis of the cap beam column 1 and parallel to the extension direction of the cap beam frame 2. The top end of the first connecting rod 5.1 is embedded in each limiting channel. The arc surface of the semi-circular groove 3.4 applies radial constraint to the rod body. At the same time, the locking bolt 3.6 passes through the connecting ear 3.3 and the vertical limiting hole 3.7 at the top of the rod body to form an axial anti-shear locking. The upper surface of the support part 3.1 is provided with a planar support surface to support the cap beam frame 2. It also includes a ring-shaped base 4 that is fitted onto the connection between the cap beam column 1 and the foundation and whose lower end face contacts the foundation surface. The base 4 includes two semi-circular rings 4.1. The open ends of the two semi-circular rings 4.1 are arranged opposite each other and the ends extend vertically upward to form symmetrical connecting flanges 4.2. The connecting flanges 4.2 are provided with coaxial mounting holes 4.3. In the closed state, the two semi-circular rings 4.1 are connected to form a ring structure by fasteners 4.4 passing through the mounting holes 4.3. The inner contact surface of the ring is in close contact with the outer wall of the cap beam column 1, and the lower end face is flat against the foundation surface to distribute the vertical load.

[0030] The vertical adjustment support mechanism 5 includes a first connecting rod 5.1 vertically fixed below the support part 3.1. The middle part of the first connecting rod 5.1 protrudes radially outward to form a support convex ring 5.1.1. The upper end face of the support convex ring 5.1.1 abuts against the bottom surface of the support part 3.1. The bottom of the first connecting rod 5.1 is threadedly connected to an adjusting column 5.2. The bottom surface of the adjusting column 5.2 forms a rotatable connection pair with the vertical rotating hole on the top surface of the base 4 through a rotating column 5.3, realizing the conversion of the rotational movement of the adjusting column 5.2 to the vertical displacement of the first connecting rod 5.1.

[0031] The anti-rotation structure 6 is used to limit the rotation of the adjusting column 5.2. It includes a fixed protruding ring 6.1, which extends radially outward along the bottom of the adjusting column 5.2. Two semi-circular arc-shaped grooves are symmetrically arranged on its outer edge, namely the first fixed groove 6.2 and the second fixed groove 6.3. The arc angle of the first fixed groove 6.2 is 180°~270°, its center coincides with the axis of the adjusting column 5.2, and its radius is R1. The arc angle of the second fixed groove 6.3 is 180°~270°, its center coincides with the axis of the adjusting column 5.2, and its radius is R2, satisfying R1>R2. Two sets of threaded holes 6.4.1 are pre-set circumferentially on the top surface of the base 4. Each set of threaded holes 6.4.1... The position of .4.1 corresponds to the sliding track of the first fixing groove 6.2 or the second fixing groove 6.3; the first fixing groove 6.2 and the second fixing groove 6.3 are staggered in the circumferential direction, and their coverage areas are complementary, so that when the adjusting column 5.2 is rotated to any angle, at least one sliding groove is aligned with the threaded hole 6.4.1 of the base 4. The locking screw 6.4.2 in the locking assembly 6.4 can selectively pass through the sliding groove area of ​​the first fixing groove 6.2 or the second fixing groove 6.3 and screw into the threaded hole 6.4.1 of the base 4. The circumferential rotation of the adjusting column 5.2 is restricted by the pressure and friction between the head of the locking screw 6.4.2 and the contact surface of the fixing convex ring 6.1.

[0032] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A beam clamp adjustment and reinforcement mechanism, characterized in that, include: A cap beam column (1) is vertically fixed to the foundation surface; A cap beam frame (2) is horizontally erected on top of the cap beam column (1); The annular clamp body (3) fitted on the outer wall of the cap beam column (1) has radially outward extensions on both sides to form symmetrical support parts (3.1), and the upper surface of the support parts (3.1) is provided with a planar support surface for supporting the cap beam frame (2). A circular base (4) is fitted onto the connection between the cap beam column (1) and the foundation, with its lower end face contacting the foundation surface; The vertical adjustment support mechanism (5) includes a first connecting rod (5.1) vertically fixed directly below the support part (3.1) and an adjustment column (5.2) threadedly connected to the bottom of the first connecting rod (5.1). The bottom surface of the adjustment column (5.2) forms a rotatable connection pair with the vertical rotation hole on the top surface of the base (4) through a rotating column (5.3), thereby realizing the conversion of the rotational movement of the adjustment column (5.2) to the vertical displacement of the first connecting rod (5.1). Anti-rotation structure (6) is used to limit the rotation of the adjusting column (5.2).

2. The beam clamp adjustment and reinforcement mechanism according to claim 1, characterized in that, The anti-rotation structure (6) includes: Fixed protruding ring (6.1): Extends radially outward along the bottom of the adjusting column (5.2), and two semi-circular arc-shaped sliding grooves are symmetrically arranged on its outer edge, namely the first fixed groove (6.2) and the second fixed groove (6.3); The arc angle of the first fixing groove (6.2) is 180°~270°, and its center coincides with the axis of the adjusting column (5.2) and its radius is R1; The arc angle of the second fixing groove (6.3) is 180°~270°, its center coincides with the axis of the adjusting column (5.2) and its radius is R2, and it satisfies R1 > R2; Locking assembly (6.4): The top surface of the base (4) has two sets of threaded holes (6.4.1) pre-set along the circumference. The position of each set of threaded holes (6.4.1) corresponds to the sliding track of the first fixed groove (6.2) or the second fixed groove (6.3). The first fixing groove (6.2) and the second fixing groove (6.3) are staggered in the circumferential direction, and their coverage areas are complementary, so that when the adjusting column (5.2) is rotated to any angle, at least one groove is aligned with the threaded hole (6.4.1) of the base (4). The locking screw (6.4.2) can selectively pass through the groove area of ​​the first fixing groove (6.2) or the second fixing groove (6.3) and screw into the threaded hole (6.4.1) of the base (4). The circumferential rotation of the adjusting column (5.2) is restricted by the contact surface of the locking screw (6.4.2) and the fixing protrusion (6.1) pressed and rubbed by the head of the locking screw (6.4.2) against the contact surface of the fixing protrusion (6.1).

3. The beam clamp adjustment and reinforcement mechanism according to claim 1, characterized in that: The clamp body (3) is composed of two symmetrically arranged circular clamp pieces (3.2). The open ends of the two clamp pieces (3.2) are arranged opposite each other to close and surround the cap beam column (1). The two sides of their open ends extend radially outward to form a pair of opposite connecting ears (3.3). The inner side of the connecting ears (3.3) is provided with a semi-circular groove (3.4). When the two clamping plates (3.2) close and surround the cap beam column (1), the two connecting ears (3.3) of each clamping plate (3.2) are radially symmetrically coupled with the corresponding connecting ears (3.3) of the other clamping plate (3.2) to form two independent support parts (3.1) on the left and right sides; the semi-circular grooves (3.4) on the inner side of the paired coupled connecting ears (3.3) close to form a coaxial cylindrical limiting channel, the axis of which is perpendicular to the axis of the cap beam column (1) and parallel to the extension direction of the cap beam frame (2); the top end of the first connecting rod (5.1) is embedded in each limiting channel, and the rod body is radially constrained by the arc surface of the semi-circular groove (3.4), while the locking bolt (3.6) passes through the connecting ear (3.3) and the vertical limiting hole (3.7) at the top of the rod body to form an axial anti-shear locking.

4. The beam clamp adjustment and reinforcement mechanism according to claim 1, characterized in that: The middle part of the first connecting rod (5.1) protrudes radially outward to form a support ring (5.1.1), and the upper end face of the support ring (5.1.1) abuts against the bottom surface of the support part (3.1).

5. The beam clamp adjustment and reinforcement mechanism according to claim 1, characterized in that, The base (4) includes two semicircular rings (4.1), with the open ends of the two semicircular rings (4.1) facing each other and the ends extending vertically upward to form symmetrical connecting flanges (4.2). The connecting flanges (4.2) are provided with coaxial mounting holes (4.3). In the closed state, the two semicircular rings (4.1) are connected to form a ring structure by fasteners (4.4) passing through the mounting holes (4.3). The inner contact surface of the ring is in close contact with the outer wall of the cap beam column (1), and the lower end surface is flat against the foundation surface to distribute the vertical load.

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