A bridge swivel bearing

Abstract

The utility model relates to the technical field of bridge swivel bearings, and proposes a bridge swivel bearing, including a base. The design is provided with a calibration pointer at the bottom of a first plug-in plate and a scale mark in a ring array in a top notch of the base. The rotation angle is determined by the corresponding position of the calibration pointer and the scale mark. In particular, when the pier is rotated to a suitable angle, the staff operates the control button to control the driving element and make the driving element drive three groups of threaded rods to rotate synchronously, so that the bearing threadedly connected to the outside of the threaded rod synchronously drives the connecting rod and the clamping arc plate to move to one side of the pier until the inner circle of the clamping arc plate is completely clamped and fixed on the outside of the pier. Through this design, it can be avoided that the pier is affected by the traction equipment and other factors after the rotation work is completed, thereby causing a slight angle deviation, thereby affecting the subsequent pouring work of the pier.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge swivel bearings, and in particular to a bridge swivel bearing. Background Art

[0002] In bridge structures, the swivel bearing is an important structural component, which usually consists of two parts, the upper part is connected to the bridge body, and the lower part is connected to the pier or abutment. The function of the swivel bearing is to enable the bridge to rotate under different loads, thereby reducing the deformation and stress of the bridge and ensuring the safety and stability of the bridge.

[0003] For example, the publication number CN219886582U discloses a bridge pier combined swivel support, and the utility model relates to the technical field of bridge piers. The bridge pier combined swivel support, through the angle plate limit assembly, when rotating the pier body, first determine the angle that the pier body needs to rotate, then pull out the corresponding plug rods on both sides, insert them into the corresponding circular holes through the comparison of the scale ring frame, and then loosen the positioning bolts inside the traction frames on both sides, cancel the limit between the traction frame and the limit bottom ring, and hang it to the traction groove on both sides through the traction equipment, drive it, so that it drives the inner support to rotate through the cooperation of the bottom support, until the traction frame and the plug rod are fitted and repositioned through the positioning bolts, the rotation operation of the pier body can be completed, making the traction of the pier body more convenient when rotating, and at the same time ensuring the accuracy of the pier body rotation angle.

[0004] However, the above-mentioned bridge pier combination swivel bearing has the following problem: the above-mentioned bridge pier combination swivel bearing is not provided with a pre-positioning design for the pier body after rotation, which makes the pier body susceptible to the influence of traction equipment and other factors after the rotation work is completed, resulting in slight angle deviations, thereby causing the insertion rod to be unable to correspond to the positioning hole, thereby affecting the subsequent pouring and fixing work after rotation. Utility Model Content

[0005] The utility model proposes a bridge swivel bearing, which solves the problem that the above-mentioned bridge pier combined swivel bearing is not provided with a pre-positioning design for the pier body after rotation, which makes the pier body susceptible to the influence of traction equipment and other factors after the rotation work is completed, thereby causing slight angle deviations, resulting in the inability of the inserted rod to correspond to the positioning hole, thereby affecting the subsequent pouring and fixing work after rotation.

[0006] The technical solution of the utility model is as follows: a bridge swivel support, comprising a base, the inner cavity annular array of the base is provided with three groups of inner seats, the top of the inner seat is provided with a rail groove, a threaded rod is movably connected in the rail groove, the outer side of the threaded rod is threadedly connected to a bearing, one side of the bearing is symmetrically fixedly connected with a connecting rod, the connecting rod is fixedly connected with a clamping arc plate on the side away from the bearing, a bearing is installed in the top notch of the base, the inner wall of the top notch of the base is fixedly connected to the outer ring of the bearing, a pier is installed on the inner ring of the bearing, and a scale mark is provided in a ring at the top notch of the base.

[0007] Preferably, a thread groove is provided through the middle of the bearing, and the thread groove matches the size of the threaded rod. Through this design, the bearing can move as the threaded rod rotates forward / reverse, so that the bearing drives the connecting rod and the clamping arc plate on one side of the connecting rod to complete the clamping of the outer side of the pier.

[0008] Preferably, anti-skid strips are symmetrically fixedly connected to both sides of the bearing, and the bearing and the anti-skid strips match the shape of the rail groove. This design can prevent the bearing from lateral position deviation when it rotates and moves with the threaded rod.

[0009] Preferably, the inner ring array of the clamping arc plate is fixedly connected with anti-skid strips. When the clamping arc plate completes the clamping of the pier, the anti-skid strips on the inner ring of the clamping arc plate come into contact with the pier to effectively increase the clamping friction.

[0010] Preferably, a driving element is installed on the outer side of the base, and the driving element is electrically connected to the threaded rod. Two groups of control buttons are provided on the outer side of the base above the driving element. The driving element is controlled by operating the control buttons and drives the three groups of threaded rods to rotate forward / reverse synchronously.

[0011] Preferably, the bottom of the base is fixedly connected to a supporting base plate, and the supporting base plate can increase the contact surface with the ground and thus increase the overall stability.

[0012] Preferably, the supporting base plate is provided with ground-drilled grooves in an annular array throughout its periphery, and the reserved ground-drilled grooves can facilitate subsequent installation and fixing of the entire base on the ground.

[0013] Preferably, the pier is provided with a first insert plate on one side above the base, and a second insert plate is provided on the outer side of the pier parallel to the first insert plate. Insert blocks are symmetrically opened through one side of the second insert plate and the first insert plate is opened with corresponding grooves.

[0014] Preferably, a bolt is threadedly connected to the top groove of the first plug plate, and the first plug plate and the second plug plate are plugged in on the outside of the pier, and the two can be fixed after plugging in by the bolt. This design can facilitate the subsequent use of traction equipment to clamp the first plug plate / the second plug plate for rotation to complete the overall rotation of the pier, avoiding direct contact and clamping of the traction equipment on the pier to avoid damage to the pier.

[0015] Preferably, a calibration pointer is fixedly connected to one side of the bottom of the first plug plate, and the rotation angle of the pier column on the top of the base can be known by penetrating the calibration pointer and the corresponding position of the scale mark. This can avoid the staff from observing the rotation angle in time, and the first plug plate and the second plug plate are threadedly connected on the outside of the pier column. When the pier column completes rotation in the slot on the top of the base, the first plug plate and the second plug plate can be removed from the outside of the pier column for subsequent work.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model is provided with three groups of inner seats and corresponding clamping arc plates in the circular array of the inner cavity of the base. When the pier column is rotated, the traction equipment can be used to clamp the first plug plate / the second plug plate to drive the pier column to rotate. The design is provided with a bearing at the connection between the base and the pier column, which can make the pier column rotation work smoother. In addition, the design is provided with a calibration pointer at the bottom of the first plug plate and a scale mark is provided in the circular array of the top notch of the base. The rotation angle is determined by the corresponding position of the calibration pointer and the scale mark. In particular, when the pier column is rotated to a suitable angle, the staff operates the control button to control the driving element and make the driving element drive the three groups of threaded rods to rotate synchronously, so that the bearing threadedly connected to the outside of the threaded rod synchronously drives the connecting rod and the clamping arc plate to move to one side of the pier column until the inner circle of the clamping arc plate is completely clamped and fixed on the outside of the pier column. Through this design, it can be avoided that the pier column is affected by the traction equipment and other factors after the rotation work is completed, thereby causing a slight angle deviation and affecting the subsequent pouring work of the pier column. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall device structure of the utility model.

[0019] Figure 2 This is a structural separation diagram of the first plug-in tray and the second plug-in tray of the utility model.

[0020] Figure 3 This is a schematic diagram of the pier column and bearing structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0022] Figure 5 It is a schematic diagram of the inner seat structure of the utility model.

[0023] Figure 6 This is a schematic diagram of the bearing and clamping arc plate structure of the utility model.

[0024] The accompanying drawings are marked as follows: 1. base; 2. supporting bottom plate; 3. drilling groove; 4. control button; 5. driving element; 6. scale mark; 7. first plug-in plate; 8. second plug-in plate; 9. pier; 10. bolt; 11. plug-in block; 12. calibration pointer; 13. bearing; 14. inner seat; 15. rail groove; 16. threaded rod; 17. connecting rod; 18. clamping arc plate; 19. anti-slip strip; 20. threaded groove. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1 - Figure 6The utility model provides a bridge swivel support, including a base 1, an inner cavity annular array of the base 1 is provided with three groups of inner seats 14, a rail groove 15 is opened on the top of the inner seat 14, a threaded rod 16 is movably connected in the rail groove 15, a bearing 13 is threadedly connected to the outer side of the threaded rod 16, a connecting rod 17 is symmetrically fixedly connected to one side of the bearing 13, and a clamping arc plate 18 is fixedly connected to the connecting rod 17 on the side away from the bearing 13, a bearing 13 is installed in the top notch of the base 1, the inner wall of the top notch of the base 1 is fixedly connected to the outer ring of the bearing 13, a pier 9 is installed on the inner ring of the bearing 13, and a scale mark 6 is opened in a ring at the top notch of the base 1. By arranging three groups of inner seats 14 and corresponding clamping arc plates 18 in the inner cavity annular array of the base 1, when the pier 9 is rotated, the traction equipment can be used to clamp the first plug plate 7 / the second plug plate 8 to drive the pier 9 to rotate. A bearing 13 is provided at the connection between the base 1 and the pier 9. This design can make the rotation of the pier 9 smoother. In addition, a calibration pointer 12 is provided at the bottom of the first plug plate 7 and a scale mark 6 is provided in a circular array in the top notch of the base 1. The rotation angle is determined by the corresponding position of the calibration pointer 12 and the scale mark 6. In particular, when the pier 9 is rotated to a suitable angle, the staff operates the control button 4 to control the driving element 5 and make the driving element 5 drive the three groups of threaded rods 16 to rotate synchronously, so that the bearing 13 threadedly connected to the outside of the threaded rod 16 synchronously drives the connecting rod 17 and the clamping arc plate 18 to move toward one side of the pier 9 until the inner circle of the clamping arc plate 18 is completely clamped and fixed on the outside of the pier 9. This design can prevent the pier 9 from being affected by the traction equipment and other factors after the rotation work is completed, thereby causing a slight angle deviation and affecting the subsequent pouring of the pier 9.

[0027] Reference Figure 1 - Figure 6 A thread groove 20 is provided through the middle of the bearing 13, and the thread groove 20 matches the size of the threaded rod 16. Through this design, the bearing 13 can move along with the forward / reverse rotation of the threaded rod 16, so that the bearing 13 drives the connecting rod 17 and the clamping arc plate 18 on one side of the connecting rod 17 to complete the clamping work on the outer side of the pier column 9.

[0028] Reference Figure 1 - Figure 6 The two sides of the bearing 13 are symmetrically fixedly connected with anti-skid strips 19, and the bearing 13 and the anti-skid strips 19 match the shape of the rail groove 15. This design can prevent the bearing 13 from being lateral positionally offset when the threaded rod 16 rotates and moves.

[0029] Reference Figure 1 - Figure 6The inner ring array of the clamping arc plate 18 is fixedly connected with an anti-slip strip 19. When the clamping arc plate 18 completes the clamping work of the pier 9, the anti-slip strip 19 on the inner ring of the clamping arc plate 18 contacts the pier 9, thereby effectively increasing the clamping friction.

[0030] Reference Figure 1 - Figure 6 A driving element 5 is installed on the outer side of the base 1, and the driving element 5 is electrically connected to the threaded rod 16. Two groups of control buttons 4 are arranged on the outer side of the base 1 above the driving element 5. The driving element 5 is controlled by operating the control buttons 4, and the driving element 5 drives the three groups of threaded rods 16 to rotate forward / reverse synchronously.

[0031] Reference Figure 1 - Figure 6 The bottom of the base 1 is fixedly connected with a supporting base plate 2, and the supporting base plate 2 can increase the contact surface with the ground and thus increase the overall stability.

[0032] Reference Figure 1 - Figure 6 A circular array of ground-drilled grooves 3 are formed throughout the supporting base plate 2. The ground-drilled grooves 3 are reserved to facilitate the subsequent installation and fixing of the base 1 as a whole on the ground.

[0033] Reference Figure 1 - Figure 6 A first insert plate 7 is arranged on one side of the pier column 9 above the base 1, and a second insert plate 8 is arranged on the outer side of the pier column 9 parallel to the first insert plate 7. Insert blocks 11 are symmetrically opened on one side of the second insert plate 8, and the first insert plate 7 is opened with corresponding grooves.

[0034] Reference Figure 1 - Figure 6 The top notch of the first plug-in plate 7 is threadedly connected with a bolt 10, and the first plug-in plate 7 and the second plug-in plate 8 are plugged in on the outside of the pier 9, and the bolt 10 can be used to fix the two after plugging. This design can facilitate the subsequent use of a traction device to clamp the first plug-in plate 7 / the second plug-in plate 8 for rotation to complete the overall rotation of the pier 9, avoiding direct contact and clamping of the traction device on the pier 9, thereby avoiding damage to the pier 9.

[0035] Reference Figure 1 - Figure 6 A calibration pointer 12 is fixedly connected to one side of the bottom of the first plug disk 7. The rotation angle of the pier column 9 at the top of the base 1 can be known by penetrating the calibration pointer 12 and the corresponding position of the scale mark 6. This world can avoid the staff from observing the rotation angle in time, and the first plug disk 7 and the second plug disk 8 are threadedly connected on the outside of the pier column 9. When the pier column 9 completes rotation in the top slot of the base 1, the first plug disk 7 and the second plug disk 8 can be removed from the outside of the pier column 9 for subsequent work.

[0036] Working principle of the utility model: In the present invention, three sets of inner seats 14 and corresponding clamping arc plates 18 are arranged in the inner cavity annular array of the base 1. When the pier column 9 is rotated, the traction equipment can be used to clamp the first plug plate 7 / the second plug plate 8 to drive the pier column 9 to rotate. In the present invention, a bearing 13 is arranged at the connection between the base 1 and the pier column 9, which can make the rotation of the pier column 9 smoother. In addition, the present invention is provided with a calibration pointer 12 at the bottom of the first plug plate 7 and a scale mark 6 is arranged in the top notch annular array of the base 1. By calibrating the position of the calibration pointer 12 and the scale mark 6, The rotation angle is determined according to the situation. In particular, when the pier 9 is rotated to a suitable angle, the staff operates the control button 4 to control the driving element 5 and make the driving element 5 drive the three groups of threaded rods 16 to rotate synchronously, so that the bearing 13 threadedly connected to the outside of the threaded rod 16 synchronously drives the connecting rod 17 and the clamping arc plate 18 to move toward the side of the pier 9 until the inner circle of the clamping arc plate 18 is completely clamped and fixed on the outside of the pier 9. This design can prevent the pier 9 from being affected by the traction equipment and other factors after the rotation work is completed, thereby preventing a slight angle deviation from occurring, thereby affecting the subsequent pouring work of the pier 9.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bridge swivel support, comprising a base (1), characterized in that: The inner cavity annular array of the base (1) is provided with three groups of inner seats (14), the top of the inner seat (14) is provided with a rail groove (15), a threaded rod (16) is movably connected in the rail groove (15), the outer side of the threaded rod (16) is threadedly connected to a bearing (13), one side of the bearing (13) is symmetrically fixedly connected with a connecting rod (17), and the connecting rod (17) is fixedly connected with a clamping arc plate (18) on the side away from the bearing (13), the top notch of the base (1) is equipped with a bearing (13), the inner wall of the top notch of the base (1) is fixedly connected to the outer ring of the bearing (13), the inner ring of the bearing (13) is equipped with a pier (9), and the top notch of the base (1) is provided with a scale mark (6) in an annular shape.

2. A bridge swivel bearing according to claim 1, characterized in that: A thread groove (20) is provided through the middle of the bearing (13), and the thread groove (20) matches the size of the threaded rod (16).

3. A bridge swivel bearing according to claim 1, characterized in that: Anti-slip strips (19) are symmetrically fixedly connected to both sides of the bearing (13), and the shapes of the bearing (13) and the anti-slip strips (19) match those of the rail groove (15).

4. A bridge swivel bearing according to claim 1, characterized in that: The inner ring array of the clamping arc plate (18) is fixedly connected with an anti-slip strip (19). When the clamping arc plate (18) completes the clamping work on the pier column (9), the anti-slip strip (19) on the inner ring of the clamping arc plate (18) contacts the pier column (9), thereby effectively increasing the clamping friction force.

5. The bridge swivel bearing according to claim 1, characterized in that: A driving element (5) is installed on the outer side of the base (1), and the driving element (5) is electrically connected to the threaded rod (16). Two groups of control buttons (4) are arranged on the outer side of the base (1) above the driving element (5), and the driving element (5) is controlled by operating the control buttons (4) so ​​that the driving element (5) drives the three groups of threaded rods (16) to rotate forward / reverse synchronously.

6. The bridge swivel bearing according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected to a supporting base plate (2), and the supporting base plate (2) can increase the contact surface with the ground and thus increase the overall stability.

7. A bridge swivel bearing according to claim 6, characterized in that: The supporting base plate (2) is provided with a circular array of ground-drilled grooves (3) extending through the entire body thereof. The ground-drilled grooves (3) are reserved to facilitate subsequent installation and fixing of the entire base (1) on the ground.

8. The bridge swivel bearing according to claim 1, characterized in that: The pier column (9) is provided with a first insert plate (7) on one side above the base (1), and a second insert plate (8) is provided on the outer side of the pier column (9) parallel to the first insert plate (7), and an insert block (11) is symmetrically provided on one side of the second insert plate (8), and the first insert plate (7) is provided with a corresponding groove.

9. A bridge swivel bearing according to claim 8, characterized in that: A bolt (10) is threadedly connected to the inner groove of the top of the first inserting plate (7).

10. The bridge swivel bearing according to claim 8, characterized in that: A calibration pointer (12) is fixedly connected to one side of the bottom of the first inserting plate (7).

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