Anti-slip swivel support and installation method thereof

Abstract

The present application belongs to bridge swivel support and its installation, especially refers to a kind of anti-loose empty swivel support and its installation method.Anti-loose empty swivel support includes longitudinally stacked and inner side abutment place is equipped with upper spherical swing and lower spherical swing by spherical slide plate rotation, upper spherical swing and lower spherical swing outside is provided with anchoring component that can be connected with adjacent beam body or lower bearing platform;Lower spherical swing outside surface uses outward convex spherical surface or conical surface structure, or outward convex prism or ridge shape structure, or the slope surface structure with effective angle with horizontal line.The present application solves the problem that air bubble is easily retained when swivel support falls and contacts with concrete in the prior art using seat slip method construction.The present application has the advantages of not easy to produce air bubble, easy to discharge the air bubble produced, effectively avoid support emptying, safe and reliable in swivel process, etc.

Description

Technical Field

[0001] The invention relates to a bridge swivel support and its installation, in particular to an anti-loosening swivel support and its installation method. Background Art

[0002] As more and more new bridge projects intersect with existing roads, railways and rivers, the vast majority of new cross-line bridges are constructed using the rotation method due to its technical advantages such as high safety and little impact on traffic.

[0003] Early rotational construction methods used a swivel ball joint device. This swivel ball joint is a skeleton assembly structure that needs to be assembled on site. It requires high precision, is difficult to ensure construction quality, and has a long construction period and high costs. To solve these problems, the development of swivel bearings has been promoted on a large scale.

[0004] The swivel bearing is a monolithic structure, requiring no on-site assembly and offering easy installation. It is installed integrally using the seat-and-mortar method. The upper and lower spherical pendulums of the swivel bearing utilize spherical structures and serve as the core components for rotation, weighing, and the central axis. Rotational engineering requires the highest level of safety and reliability for the swivel bearing. Failure of the swivel bearing's rotational structure would severely impact the project and be unremediable.

[0005] Existing swivel supports have significant structural design flaws, resulting in problems in actual use. The diameter of the swivel support is typically large, and when the swivel support is seated on the concrete during construction using the mortar method, this can easily lead to air trapped inside the contact surface between the swivel support and the concrete, which cannot be exhausted. Alternatively, when the swivel support cannot be lowered horizontally during the hoisting process, this can easily lead to internal air accumulation that cannot be exhausted. This situation causes the swivel support to become detached from the concrete, causing the lower pendulum to deform under the weight of the upper beam, resulting in the upper and lower pendulum surfaces not being able to effectively fit together. The spherical slide between the upper and lower pendulums collapses and fails, resulting in rotation failure or other serious hazards due to the increased rotational force.

[0006] Patent application publication number CN111139748A discloses a bridge swivel bearing with a backup horizontal rotation function. The embedded plate is equipped with multiple vibration holes and vent holes. This arrangement facilitates the degassing of concrete beneath the embedded plate, ensuring a dense concrete base during installation. However, the technical proposal does not disclose the specific structure of the vent holes. Because the embedded plate is detachably connected to the swivel bearing body via bolts, effective gas discharge is difficult when large bubbles are present in the area adjacent to the concrete.

[0007] The applicant has not found any literature report identical or similar to the present invention in the domestic patent database. Summary of the Invention

[0008] The purpose of the present invention is to provide an anti-slip swivel support and an installation method thereof, which can effectively solve the structural design hidden dangers of the existing swivel support and ensure the effective implementation of the swivel construction.

[0009] The overall technical concept of the present invention is:

[0010] The anti-slip swivel support includes an upper ball pendulum and a lower ball pendulum which are longitudinally stacked and assembled by rotating spherical slides at the inner adjacent parts. The outer sides of the upper ball pendulum and the lower ball pendulum are provided with anchoring components that can be matched with adjacent beams or lower pedestals; the outer surface of the lower ball pendulum adopts an outwardly protruding spherical or conical structure, or an outwardly protruding prismatic or ridge-shaped structure, or a slope structure with an effective angle to the horizontal line.

[0011] The installation method of the anti-slip swivel support includes the following steps:

[0012] A. Reserve bolt holes at the swivel support position when pouring the lower cap;

[0013] B. After the swivel support is assembled, assemble the anchor bolts with the swivel support, and hoist the swivel support into the reserved bolt holes;

[0014] C. Adjust the support nut to make the swivel support in a horizontal state;

[0015] D. Install the template on the outer side of the swivel support on the upper part of the lower pedestal to form a reserved groove closed on all sides, and pour concrete into the reserved bolt holes to form a primary pouring layer;

[0016] E. Remove the swivel support and wait for the first pouring layer to solidify;

[0017] F. Pour concrete into the reserved groove to form a secondary pouring layer. When the secondary pouring layer has not solidified, use the mortar method to install the swivel support and tighten the anchor nut.

[0018] The specific technical concepts of the present invention include:

[0019] The outer surface of the lower spherical pendulum adopts an outwardly convex spherical or conical surface structure, a prismatic or ridge-shaped structure that convexes along the centerline, or a sloped structure that forms an effective angle with the horizontal line. The main function of the structure is to minimize the contact area between the swivel support and the uncured concrete when it falls, thereby reducing or eliminating the accumulation of bubbles caused by contact and preventing air from being trapped under the swivel support. The convex spherical or conical surface structure on the outer surface of the lower spherical pendulum adopts one of the following shapes: cone, pyramid, truncated cone, spherical table, prism, spherical crown, or a combination thereof.

[0020] In order to facilitate the arrangement of the exhaust channel and facilitate the realization of the exhaust function, the preferred technical implementation method is that the exhaust channel is opened in the lower ball pendulum and one end opens to the outer surface of the lower ball pendulum, and the other end of the exhaust channel opens to the outside through the inside or all around the lower ball pendulum.

[0021] In order to facilitate the setting of the spherical slide, the preferred technical means is that the inner side of the lower ball swing is provided with a groove for inlaying and fixing the spherical slide.

[0022] In order to facilitate the manufacture of the exhaust passage in the lower ball swing, and because the seat grouting method is used for installation, the bubbles are easy to escape along the exhaust passage under the action of pressure. In order to avoid the accumulation of bubbles in the center of the lower ball swing from affecting the structure, the more preferred technical means is that the exhaust passage comprises first passages which are arranged at intervals along the radial direction and penetrate the inside and outside of the lower ball swing along the axial direction; second passages which are radially distributed on the inner side surface of the lower ball swing and are in communication with the upper ends of the first passages, and the outer ends of the second passages are opened on the inner side or around the lower ball swing outside the spherical slide.

[0023] In order to avoid the phenomenon that bubbles are not easy to be discharged due to poor exhaust of individual first and second passages, the preferred technical means is that it further comprises third passages which are distributed on the inner side surface of the lower ball swing, and the third passages communicate the second passages with each other.

[0024] The main function of the third passage is to communicate the second passages. In order to facilitate the realization of the above function, the third passage comprises but is not limited to the following structures, that is, the third passage is annular, arc-shaped or linearly distributed on the inner side surface of the lower ball swing.

[0025] In order to avoid the spherical slide hindering the exhaust of gas, the second and third passages are located below the spherical slide.

[0026] The main function of the anchoring member is to form a stable connection relationship with the pouring layer, and to form a stable support for the body support and to adjust the horizontal state of the body support. The preferred technical means is that the anchoring member comprises an anchoring bolt, a supporting nut matched with the anchoring bolt, and an anchoring nut.

[0027] In order to make the laying of concrete more compact during the pouring process, the preferred technical means is that a vibrating rod is used to realize the compaction of concrete during the pouring process of step D.

[0028] The main function of the secondary pouring layer is to place the body support and form a stable support for it. In order to shorten the construction period and reduce the storage of bubbles, the preferred technical means is that it further comprises a step G, that is, after the step F of pouring concrete into the reserved groove to form the secondary pouring layer and solidifying, the formwork is removed, and the upper surface of the primary pouring layer outside the reserved groove is poured with concrete to make the concrete inside and outside the reserved groove flush.

[0029] The applicant needs to explain that:

[0030] In the description of the present invention, terms such as "inside," "outside," "outer end," and "below" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "first," "second," and "third" are used solely to descriptively distinguish and should not be construed to imply importance.

[0031] The substantial features and significant technical advancements of the present invention are:

[0032] 1. The outer surface of the lower ball pendulum in the swivel bearing of the present invention adopts an outwardly protruding spherical or conical structure, or an outwardly protruding prismatic or ridge-shaped structure, or a slope structure design with an effective angle to the horizontal line. When using the seat mortar method for construction, the air retention at the contact surface between the lower surface of the lower ball pendulum and the concrete is reduced or even eliminated by greatly reducing the contact area between the bottom of the bearing and the concrete, thereby effectively avoiding the phenomenon of the bearing becoming empty.

[0033] 2. The present invention adopts the structural design of the exhaust channel, so that when there is a small amount of air at the junction of the outer surface of the lower ball pendulum and the concrete, it can also be discharged through the exhaust channel, ensuring that the swivel support is completely close to the concrete and there is no air leakage problem, ensuring the safety and reliability of the rotation process.

[0034] 3. The present invention adopts a structural design of radially distributed second channels and a third channel connecting each second channel, so that the first, second and third channels are connected as one, effectively realizing the smooth discharge of the air stored in the outer side of the lower ball pendulum and the adjacent concrete.

[0035] 4. The installation method adopts the process steps of first pouring the main body of the lower pedestal and pre-setting the reserved groove, then pouring concrete in the reserved groove and using the mortar method to install the swivel bearing. While realizing the rapid construction of the lower pedestal by pouring concrete, it effectively meets the process requirements of installing the swivel bearing by the mortar method. While ensuring the horizontal installation of the swivel bearing, the installation period of the swivel bearing is greatly shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings of the present invention include:

[0037] Figure 1 It is a schematic diagram of the anti-slip swivel support structure in the present invention.

[0038] Figure 2 It is a schematic diagram of the exhaust channel arrangement structure in the present invention.

[0039] Figure 3 yes Figure 2 Top view of .

[0040] Figure 4A It is a schematic diagram of the reserved hole structure of the lower bearing platform in the present invention.

[0041] Figure 4B yes Figure 4A AA view.

[0042] Figure 5 It is a structural schematic diagram of placing the swivel support in the reserved hole when installing the anti-slip swivel support of the present invention.

[0043] Figure 6 It is a structural schematic diagram of the anti-slip swivel support of the present invention after a template is installed on the outside of the swivel support.

[0044] Figure 7 It is a schematic diagram of the structure of a single casting layer formed by pouring reserved holes when installing the anti-slip rotation support in the present invention.

[0045] Figure 8 It is a structural schematic diagram of removing the swivel support and waiting for the primary casting layer to solidify when installing the anti-slip swivel support in the present invention.

[0046] Figure 9 It is a structural schematic diagram of a secondary pouring layer formed when installing the anti-slip rotation support in the present invention.

[0047] Figure 10 It is a schematic diagram of a conical surface structure with a center-outward protrusion on the outer side of the lower ball pendulum of the anti-slip swivel support of the present invention.

[0048] Figure 11 yes Figure 10 Y direction view.

[0049] Figure 12 The present invention is a schematic diagram of a slope structure with an effective angle to the horizontal line on the outer side of the lower ball pendulum of the anti-slip swivel support.

[0050] Figure 13 yes Figure 12 Y direction view.

[0051] Figure 14 The present invention is a schematic diagram of a triangular prism structure in which the outer side of the lower ball pendulum of the anti-slip swivel support adopts an isosceles triangle bottom surface.

[0052] Figure 15 yes Figure 14 Y direction view.

[0053] Figure 16 The diagram is a schematic diagram showing that the outer side of the lower ball pendulum of the anti-slip swivel support of the present invention adopts a triangular prism structure with an unequal bottom surface.

[0054] Figure 17 yes Figure 16 Y direction view.

[0055] The reference numerals in the accompanying drawings are as follows:

[0056] 1. Upper ball pendulum; 2. Spherical slide; 3. Lower ball pendulum; 4A. First channel; 4B. Second channel; 4C. Third channel; 5. Lower pedestal; 6. Anchor bolts; 7. Support nuts; 8. Reserved bolt holes; 9. Primary casting layer; 10. Reserved grooves; 11. Secondary casting layer; 12. Anchor nuts. DETAILED DESCRIPTION

[0057] The following further describes the embodiments of the present invention in conjunction with the accompanying drawings, but does not limit the present invention. Any equivalent technical means made according to the description does not depart from the scope of protection of the present invention.

[0058] Example 1

[0059] The overall structure and installation steps of this embodiment are as follows Figure 1-11 As shown, the anti-slip swivel support includes an upper ball pendulum 1 and a lower ball pendulum 3 which are longitudinally stacked and assembled by rotating through a spherical slide 2 at the inner adjacent parts. Anchor components that can be matched with adjacent beams or lower pedestals are provided on the outer sides of the upper ball pendulum 1 and the lower ball pendulum 3; the outer surface of the lower ball pendulum 3 adopts a conical surface structure with a center convex outward.

[0060] The exhaust passage is opened in the lower spherical pendulum 3 and one end is opened on the outer surface of the lower spherical pendulum 3 , and the other end of the exhaust passage is opened and communicates with the outside through the inner side or the surrounding of the lower spherical pendulum 3 .

[0061] A groove for embedding and fixing the spherical slide plate 2 is provided on the inner side of the lower spherical pendulum 3 .

[0062] The exhaust channel includes a first channel 4A which is arranged at radial intervals and axially penetrates the inside and outside of the lower spherical pendulum 3; a second channel 4B which is radially distributed on the inner side of the lower spherical pendulum 3 and connected to the upper end of the first channel 4A, and the outer end of the second channel 4B opens to the inner side or around the lower spherical pendulum 3 outside the spherical skateboard 2.

[0063] A third channel 4C is also included on the inner side of the lower spherical pendulum 3. This third channel 4C connects the second channel 4B to the other channel. The third channel 4C is arranged in a circular, arc-shaped, or linear shape on the inner side of the lower spherical pendulum 3. The second channel 4B and the third channel 4C are located below the spherical slide 2.

[0064] The anchoring member includes an anchoring bolt 6 , a supporting nut 7 and an anchoring nut 12 adapted therewith.

[0065] The installation method of the anti-slip swivel support includes the following steps:

[0066] A. When pouring the lower cap 5, reserve bolt holes 8 at the swivel support position;

[0067] B. After the swivel support is assembled, assemble the anchor bolts 6 with the swivel support, and hoist the swivel support into the reserved bolt holes;

[0068] C. Adjust the support nut 7 so that the swivel support is in a horizontal state;

[0069] D. Install a template on the outer side of the swivel support on the upper part of the lower pedestal 5 to form a reserved groove 10 that is closed on all sides, and pour concrete into the reserved bolt holes 8 to form a primary pouring layer 9;

[0070] E. Remove the swivel support and wait for the primary pouring layer 9 to solidify;

[0071] F. Pour concrete into the reserved groove 10 to form a secondary pouring layer 11. When the secondary pouring layer 11 is not solidified, use the mortar method to install the swivel support and tighten the anchor nut 12.

[0072] The invention also includes a step G, in which after the concrete is poured into the reserved groove 10 in step F to form the secondary pouring layer 11 and solidified, the formwork is removed and concrete is poured on the upper surface of the lower base 5 outside the reserved groove 10 to make the concrete inside and outside the reserved groove 10 flush.

[0073] Example 2

[0074] The overall structure of this embodiment is as follows Figure 12 、 13 As shown, the difference between this embodiment and embodiment 1 is:

[0075] The outer surface of the lower ball pendulum 3 adopts a slope structure that forms an effective angle with the horizontal line.

[0076] The rest of the content is the same as in Example 1.

[0077] Example 3

[0078] The overall structure of this embodiment is as follows Figure 14 、 15 As shown, the difference between this embodiment and embodiment 1 is:

[0079] The outer surface of the lower ball pendulum 3 adopts a triangular prism or a roof-shaped structure whose longitudinal section is an isosceles triangle.

[0080] The rest of the content is the same as in Example 1.

[0081] Example 4

[0082] The overall structure of this embodiment is as follows Figure 16 、 17 As shown, the difference between this embodiment and embodiment 1 is:

[0083] The outer surface of the lower ball pendulum 3 adopts a triangular prism structure with a longitudinal section being an unequal triangle.

[0084] The rest of the content is the same as in Example 1.

Claims

1. An anti-slip swivel support, comprising an upper spherical pendulum (1) and a lower spherical pendulum (3) stacked longitudinally and rotatably assembled at the inner adjacent portions thereof by means of a spherical slide plate (2), wherein the outer sides of the upper spherical pendulum (1) and the lower spherical pendulum (3) are provided with anchoring members that can be connected to adjacent beams or lower bearing platforms; The outer surface of the lower ball pendulum (3) adopts an outwardly protruding spherical or conical structure, or an outwardly protruding prism or roof-shaped structure, or a slope structure with an effective angle to the horizontal line; the exhaust channel includes a first channel (4A) arranged at intervals along the radial direction and axially pendulumed inside and outside the lower ball pendulum (3); a second channel (4B) radially distributed on the inner side of the lower ball pendulum (3) and connected to the upper end of the first channel (4A), the outer end of the second channel (4B) opens to the inner side or surrounding of the lower ball pendulum (3) outside the spherical slide (2), and also includes a third channel (4C) distributed on the inner side of the lower ball pendulum (3), and the third channel (4C) connects the second channels (4B) to each other.

2. The anti-slip swivel support according to claim 1, characterized in that The convex spherical or conical surface structure of the outer surface of the lower ball pendulum (3) adopts one of the following shapes: cone, pyramid, truncated cone, spherical table, prism, spherical crown, or a combination thereof.

3. The anti-slip swivel support according to claim 1 or 2, characterized in that The exhaust passage is opened in the lower spherical pendulum (3) and one end is opened on the outer surface of the lower spherical pendulum (3), and the other end of the exhaust passage is opened and communicates with the outside through the inner side or the periphery of the lower spherical pendulum (3).

4. The anti-slip swivel support according to claim 1, characterized in that A groove for inlaying and fixing the spherical slide plate (2) is provided on the inner side of the lower ball pendulum (3).

5. The anti-slip swivel support according to claim 1, characterized in that The third channel (4C) is distributed in a ring shape, an arc shape or a straight line shape on the inner side surface of the lower ball pendulum (3).

6. The anti-slip swivel support according to claim 5, characterized in that The second channel (4B) and the third channel (4C) are located below the spherical slide (2).

7. The anti-slip swivel support according to claim 1, characterized in that The anchoring member comprises an anchoring bolt (6), a supporting nut (7) and an anchoring nut (12) adapted thereto.

8. The method for installing the anti-slip swivel support according to any one of claims 1 to 7, characterized in that The steps include: A. When pouring the lower bearing platform (5), a bolt hole (8) is reserved at the position of the swivel support; B. After the swivel support is assembled, assemble the anchor bolts (6) with the swivel support, and hoist the swivel support into the reserved bolt holes; C. Adjust the support nut (7) so that the swivel support is in a horizontal state; D. Install a template on the outer side of the swivel support on the upper part of the lower pedestal (5) to form a reserved groove (10) with four sides closed, and pour concrete into the reserved bolt holes (8) to form a primary pouring layer (9); E. Remove the swivel support and wait for the primary pouring layer (9) to solidify; F. Pour concrete into the reserved groove (10) to form a secondary pouring layer (11). When the secondary pouring layer (11) is not solidified, the swivel support is installed using the mortar method and the anchor nut (12) is tightened.

9. The method for installing the anti-slip swivel support according to claim 8, characterized in that During the pouring process of step D, a vibrating rod is used to achieve concrete compaction.

10. The method for installing the anti-slip swivel support according to claim 8, characterized in that The method further comprises a step G, wherein after pouring concrete into the reserved groove (10) in step F to form a secondary pouring layer (11) and solidifying the concrete, the formwork is removed, and concrete is poured onto the upper surface of the lower support platform (5) outside the reserved groove (10) so that the concrete inside and outside the reserved groove (10) are flush.

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