Fabricated bridge pier column quick connecting device

Abstract

The utility model discloses a quick connecting device for an assembled bridge pier column, which is used for quickly and accurately mounting a prefabricated pier column and a bearing platform and comprises an adjusting component, a mounting base and a guide column. The adjusting component is detachably connected to the peripheral face of the bottom of the prefabricated pier column and provided with a symmetrical guide structure and a conical hole. The mounting base is fixed to the top face of the bearing platform and surrounds the pre-mounting position, and guide columns corresponding to the conical holes are fixedly arranged on the mounting base. When the prefabricated pier column is installed, the guide column penetrates into the conical hole, the pier column is guided to automatically correct the position through the large-diameter fault-tolerant design and conical surface matching of the conical hole, and accurate butt joint of the bearing platform embedded steel bar and the sleeve at the bottom of the pier column is achieved. In addition, a jack and a leveling structure are arranged, and levelness fine adjustment is completed through cooperation of the jack and the leveling structure. The device can ensure the quick and accurate butt joint of the embedded steel bar and the sleeve, and has the advantages of improving the mounting precision and the construction efficiency and reducing the manual adjustment time.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled bridges, in particular to a quick connection device for assembled bridge piers. Background Art

[0002] In prefabricated bridge construction, the connection between prefabricated piers and caps is a critical step. Precise alignment of the prefabricated pier sleeves with the embedded rebar on the caps is crucial. However, due to the heavy weight and size of prefabricated piers, rapid and accurate installation is difficult to achieve with only cranes and manpower during the hoisting process. This results in inefficient connection between the rebar and sleeves, leading to large errors and impacting construction quality and progress.

[0003] Therefore, there is an urgent need to improve the existing technology. Utility Model Content

[0004] The utility model aims to solve the technical problems of difficult positioning and alignment, complicated leveling, insufficient precision, etc. during the installation process of prefabricated pier columns.

[0005] In order to achieve the above technical objectives, the technical solution of the utility model is as follows:

[0006] A prefabricated bridge pier quick connection device is used for the installation of prefabricated piers and pedestals, comprising an adjusting member, a mounting base and a guide column, wherein: the adjusting member is detachably connected to the bottom outer peripheral surface of the prefabricated pier; two guide structures are symmetrically arranged on the adjusting member, each guide structure is provided with a tapered hole, the large-diameter end of the tapered hole faces downward, and the small-diameter end faces upward; the mounting base is fixed to the top surface of the pedestal, and the pre-installation position surrounding the prefabricated pier is arranged below the adjusting member; guide columns corresponding to the tapered holes are fixed on the mounting base; the guide columns are configured to: penetrate into the corresponding tapered holes when the prefabricated pier is installed, and guide the prefabricated pier to the target position through the cooperation of the tapered inner wall of the tapered hole and the guide column, thereby realizing automatic position correction and allowing the embedded steel bars of the pedestal to be inserted into the bottom sleeve of the prefabricated pier.

[0007] Furthermore, the present invention also proposes that the inner diameter of the large-diameter end of the tapered hole is greater than 3 times the diameter of the guide post, and the diameter of the guide post is smaller than the inner diameter of the small-diameter end of the tapered hole.

[0008] Furthermore, the present invention also proposes that the top end of the guide column is a tapered guide head, and the taper of the tapered guide head matches the inner wall of the tapered hole.

[0009] Furthermore, the present invention also proposes that the height of the guide column is greater than the depth of the tapered hole, and the height of the guide column is greater than the exposed height of the embedded steel bars on the base.

[0010] Furthermore, the present invention also proposes that a mounting groove is provided in the middle of the adjusting component, and a leveling structure is fixed in the mounting groove.

[0011] Furthermore, the present invention also proposes that a jack is provided on the installation base, and the lifting end of the jack acts on the bottom of the leveling structure to drive the horizontal adjustment of the prefabricated pier column.

[0012] Furthermore, the present invention also proposes that the adjusting member is detachably connected to the prefabricated pier column via a first high-strength bolt.

[0013] Furthermore, the present invention also proposes that the mounting base includes a base plate and a plurality of mounting ears distributed along the circumferential direction, each mounting ear is provided with a bolt hole and is fixed to the base by a second high-strength bolt.

[0014] The beneficial effect of the present invention is that it provides a quick connection device and method for assembled bridge piers, which cooperates with the guide column on the installation base through the adjustment component, utilizes the tapered hole structure to guide the prefabricated pier to be precisely positioned, and realizes automatic correction of the installation position of the prefabricated pier through the tapered guide structure during the falling process of the pier, ensuring that the embedded steel bars and the sleeve are quickly and accurately connected, which has the advantages of improving installation accuracy and construction efficiency and reducing manual adjustment time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0016] Figure 1 This is a structural diagram of the prefabricated pier and the pedestal before docking in the embodiment of the present application.

[0017] Figure 2 for Figure 1 Schematic diagram of the locally enlarged structure of area A in the middle.

[0018] Figure 3 This is a schematic diagram of the completed structure of the prefabricated pier and the base in the embodiment of the present application.

[0019] Figure 4 for Figure 2 Schematic diagram of the locally enlarged structure of area B in the middle.

[0020] Figure 5 Schematic diagram of the regulating component structure.

[0021] Figure 6 Schematic diagram of the cross-sectional structure of the regulating component.

[0022] Figure 7 This is a schematic diagram of the connection structure of the installation base, jack and guide column.

[0023] Figure 8 Schematic diagram of prefabricated pier structure.

[0024] Among them, the figure numbers are:

[0025] 10. Prefabricated pier; 11. Bottom sleeve; 20. Cap; 21. Embedded steel bars; 30. Adjusting member; 31. Guide structure; 311. Conical hole; 32. Mounting groove; 33. Leveling structure; 40. Mounting base; 41. Base plate; 42. Mounting ear; 421. Bolt hole; 50. Guide column; 51. Conical guide head; 60. Jack; 61. Lifting end; 70. First high-strength bolt; 80. Second high-strength bolt. DETAILED DESCRIPTION

[0026] The following, in conjunction with the accompanying drawings, provides a clear and complete description of the technical solutions of the present invention. It should be understood that the described embodiments represent only a portion of the embodiments of the present invention, and are not intended to be exhaustive. The components of the present invention generally described and illustrated in the accompanying drawings may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings. Furthermore, in the description of the present invention, the terms "first," "second," etc., are used solely to distinguish descriptions and are not to be construed as indicating or implying relative importance.

[0027] Please refer to Figures 1 to 8 The utility model proposes a quick connection device for assembled bridge piers, including an adjusting member 30, a mounting base 40 and a guide column 50. The adjusting member 30 is detachably connected to the outer peripheral surface of the bottom of the prefabricated pier 10, and two guide structures 31 with tapered holes 311 are symmetrically arranged thereon. The mounting base 40 is fixed to the top surface of the pedestal 20 and surrounds the pre-installation position of the prefabricated pier 10, and the guide column 50 corresponding to the tapered hole 311 is fixed on its surface. When the prefabricated pier 10 is installed, the guide column 50 is inserted into the tapered hole 311, and the position is automatically corrected through the contact between the tapered inner wall and the guide column 50, so that the embedded steel bars 21 of the pedestal 20 are accurately inserted into the bottom sleeve 11 of the prefabricated pier 10.

[0028] Among them, the adjustment member 30 can be detachably connected to the bottom outer peripheral surface of the prefabricated pier 10, and can be specifically implemented by high-strength bolt connection, which is used to temporarily fix and adjust the position of the prefabricated pier 10. The guide structure 31 is symmetrically arranged on the adjustment member 30, and can be specifically implemented by welding or bolt fixing. The symmetrical distribution ensures uniform force and avoids deflection. The conical hole 311 is opened in the guide structure 31, with the large diameter end facing downward and the small diameter end facing upward. Specifically, it can be machined to form a conical through hole, and the position correction is achieved by the contact between the conical inner wall and the inclined surface of the guide column 50. The mounting base 40 is fixed to the top surface of the base 20 and surrounds the pre-installed position of the prefabricated pier 10. Specifically, it can be implemented by combining embedded steel plates with concrete pouring to provide a stable support base for the adjustment member 30. The guide column 50 is a steel cylinder, which is fixed to the mounting base 40 and corresponds one-to-one with the tapered hole 311. Specifically, it can be fixed to the mounting base 40 by welding or bolts. Its axis is aligned with the axis of the tapered hole 311. By penetrating into the tapered hole 311, it guides the prefabricated pier 10 to move in the vertical direction, forcing the embedded steel bars 21 to automatically align with the bottom sleeve 11.

[0029] The core innovation of the present invention is that by cooperating with the tapered hole 311 and the inclined surface of the guide column 50, gravity and the self-correcting characteristics of the tapered structure are utilized during the falling process of the prefabricated pier 10 to achieve rapid and accurate docking of the embedded steel bars 21 and the sleeve without relying on manual intervention or complex leveling equipment.

[0030] The working process and principle of this utility model are as follows: the prefabricated bridge pier quick-connect device includes an adjustment member 30, a mounting base 40, and a guide post 50. The adjustment member 30 is detachably connected to the outer peripheral surface of the bottom of the prefabricated pier 10 and is provided with two symmetrical guide structures 31. Each guide structure 31 defines a tapered hole 311, with the large-diameter end facing downward and the small-diameter end facing upward. The mounting base 40 is fixed to the top surface of the pedestal 20 and is positioned below the adjustment member 30, surrounding the prefabricated pier 10 pre-installation position. The guide post 50 corresponding to the tapered hole 311 is fixed to the mounting base 40.

[0031] During the installation of the precast pier 10, the guide post 50 is inserted into the corresponding tapered hole 311. Because the tapered inner wall of the tapered hole 311 cooperates with the guide post 50, when the precast pier 10 is lowered, if there is any horizontal deviation, the inner wall of the tapered hole 311 will contact the guide post 50, generating a horizontal force component. This horizontal force propels the precast pier 10 toward the target position, achieving automatic position correction. Through this mechanical coordination, the precast pier 10 is guided to the correct position, allowing the embedded rebar 21 in the pedestal 20 to be accurately inserted into the sleeve 11 at the bottom of the precast pier 10.

[0032] The design of the tapered hole 311 and the guide post 50 is crucial. The larger diameter end of the tapered hole 311 accommodates significant initial misalignment while allowing the guide post 50 to be quickly inserted into the tapered hole 311 without requiring precise alignment. The smaller diameter end is slightly larger than the diameter of the guide post 50, ensuring precise final positioning. This design utilizes simple mechanical principles, eliminating the need for complex power systems, to automatically center the prefabricated pier 10. It overcomes the limitations of traditional manual adjustment and improves installation accuracy and efficiency.

[0033] Through the above-described solution, the present invention achieves automatic position correction during the installation of the prefabricated pier column 10 and the pedestal 20. Due to the mechanical coordination between the tapered hole 311 and the guide column 50, precise positioning can be achieved without the need for a complex power system. This design overcomes the limitations of traditional manual adjustment and significantly improves installation accuracy and efficiency. Furthermore, by reducing manual intervention, the safety risks of high-altitude operations are reduced. Furthermore, precise positioning ensures accurate docking of the embedded rebar 21 with the sleeve, avoiding structural damage and improving the stress-bearing capacity and durability of the connection node.

[0034] For further information, please refer to Figures 5 to 7 The inner diameter of the large-diameter end of the tapered hole 311 is greater than 3 times the diameter of the guide column 50 , and the diameter of the guide column 50 is smaller than the inner diameter of the small-diameter end of the tapered hole 311 .

[0035] The inner diameter of the large-diameter end of the tapered hole 311 is set to be at least three times the diameter of the guide post 50, creating a large initial tolerance, allowing for some horizontal offset of the prefabricated pier 10 during installation. The diameter of the guide post 50 is smaller than the inner diameter of the small-diameter end of the tapered hole 311, ensuring that the guide post 50 gradually converges to the target position within the constraints of the inner wall of the tapered hole 311.

[0036] Specifically, during the hoisting process of the prefabricated pier 10, the size design of the large-diameter end of the tapered hole 311 allows the guide column 50 to quickly and easily enter the tapered hole 311. Even if there is an initial position offset, the inner wall of the tapered hole 311 can still generate a horizontal component of force through inclined contact to push the pier to move. When the prefabricated pier 10 falls, the guide column 50 first enters the large-diameter end of the tapered hole 311. At this time, the larger aperture can absorb the lateral offset caused by the hoisting. As the pier continues to descend, the inner wall of the tapered hole 311 contacts the guide column 50. The difference between the diameter of the guide column 50 and the inner diameter of the small-diameter end forms a progressive guide gap, forcing the pier to move along the axis of the tapered hole 311. During this process, the contact area between the guide column 50 and the inner wall of the tapered hole 311 gradually increases, and ultimately the axis error between the sleeve of the prefabricated pier 10 and the embedded steel bar 21 is controlled within the allowable range. Through the above-mentioned dimensional coordination, the tolerance range of the initial positioning is expanded, and the final positioning accuracy is guaranteed, avoiding secondary adjustments or structural interference caused by unreasonable dimensional design.

[0037] Through the above-mentioned technical solution, the present invention achieves precise positioning and automatic correction during the installation of the prefabricated pier column 10. The larger size of the large-diameter end of the tapered hole 311 provides sufficient space for the initial insertion of the guide column 50, reducing the risk of collision during installation. Furthermore, the slight gap between the small-diameter end of the tapered hole 311 and the guide column 50 ensures the accuracy of the final positioning. This design not only improves installation efficiency but also significantly reduces operator error, ensuring precise docking of the prefabricated pier column 10 with the pedestal 20.

[0038] In some of the above-mentioned schemes, when the guide column 50 passes through the tapered hole 311, due to the lack of a guiding structure at the end of the column, radial deviation may occur when the column contacts the inner wall of the tapered hole 311, resulting in a hard collision between the column and the hole wall, affecting the smoothness of the position correction of the prefabricated pier 10.

[0039] For further information, please refer to Figure 7 The top end of the guide column 50 is a conical guide head 51 , and the taper of the conical guide head 51 matches the inner wall of the conical hole 311 .

[0040] The conical guide head 51 refers to the end of the guide column 50 being processed into a conical structure, which can be achieved by cutting or casting technology. The inclination angle of the conical surface is consistent with the inclination angle of the inner wall of the conical hole 311.

[0041] Specifically, when the prefabricated pier 10 is hoisted and lowered, the conical guide head 51 at the top of the guide column 50 preferentially contacts the entrance edge of the conical hole 311. The inclined surface of the conical guide head 51 forms a continuous contact surface with the inner wall of the conical hole 311, and the radial offset is converted into axial displacement through the sliding contact between the conical surfaces. As the pier continues to descend, the conical guide head 51 slides along the inner wall of the conical hole 311, forcing the prefabricated pier 10 to produce horizontal displacement compensation until the guide column 50 completely enters the conical hole 311. In this process, the tapered matching relationship between the conical guide head 51 and the inner wall of the conical hole 311 eliminates the risk of hard collision, and the guide column 50 and the conical hole 311 form a self-centering effect, ensuring that the prefabricated pier 10 automatically corrects the horizontal deviation under the action of gravity. The conical surface roughness control of the conical guide head 51 reduces the sliding friction resistance, making the position correction process smoother.

[0042] Through the above-mentioned technical solution, the present invention achieves a precise fit between the guide post 50 and the tapered hole 311, improving the accuracy of the installation and positioning of the prefabricated pier 10. The matching design of the tapered guide head 51 and the inner wall of the tapered hole 311 enhances the guiding effect and reduces deviation during the installation of the prefabricated pier 10. Furthermore, the design of the tapered guide head 51 reduces friction between the guide post 50 and the tapered hole 311, allowing the prefabricated pier 10 to move more smoothly to the target position.

[0043] In some of the above solutions, insufficient height of the guide column 50 may result in the embedded steel bars 21 being unable to be fully inserted into the bottom sleeve 11 after the prefabricated pier column 10 is moved to the target position, thereby affecting installation accuracy and efficiency.

[0044] For further information, please refer to Figures 1 to 7 The height of the guide column 50 is greater than the depth of the tapered hole 311 , and the height of the guide column 50 is greater than the exposed height of the embedded steel bars 21 on the base 20 .

[0045] It can be understood that the height of the guide column 50 is greater than the depth of the tapered hole 311 to ensure that during the entire process of the pier column falling until it contacts the base 20, the guide column 50 always functions in the tapered hole 311, providing continuous guidance and correction capabilities. The height of the guide column 50 is greater than the exposed height of the pre-embedded steel bars 21 on the base 20, which is the core guarantee for realizing the process logic of "correcting the deviation first and then inserting the steel bars". Ensure that the guide column 50 enters the tapered hole 311 for position correction first, and after the pier column position is basically adjusted, the pre-embedded steel bars 21 begin to enter the sleeve at the bottom of the pier column, avoiding the risk of damage caused by forced insertion or collision of the steel bars before the pier column position is adjusted, greatly improving the docking success rate and safety.

[0046] Through the above technical solution, the present invention realizes that the guide column 50 effectively guides the prefabricated pier column 10.

[0047] During the actual installation process, the contact surface between the bottom of the prefabricated pier column 10 and the base 20 may be partially uneven or tilted, resulting in the horizontality of the prefabricated pier column 10 failing to meet the installation accuracy requirements, thereby affecting the precise docking of the embedded steel bars 21 and the sleeve.

[0048] For further information, please refer to Figure 5 A mounting groove 32 is provided in the middle of the adjusting member 30 , and a leveling structure 33 is fixed in the mounting groove 32 .

[0049] The mounting groove 32 is a central structure of the adjusting member 30 and is opened in the central region of the adjusting member 30 along the axis of the adjusting member 30. The leveling structure 33 is installed in the mounting groove 32 by welding or bolting, providing a stable action point for the jack 60.

[0050] Through the above technical solution, the utility model realizes the precise leveling of the prefabricated pier 10 .

[0051] In some of the above-mentioned schemes, a leveling structure 33 is fixed in the middle mounting groove 32 of the adjusting member 30, but the leveling structure 33 lacks an active driving device, making it difficult to adjust the horizontal posture in real time during the hoisting process of the prefabricated pier 10, resulting in insufficient docking accuracy between the embedded steel bars 21 and the sleeve.

[0052] For further information, please refer to Figure 7A jack 60 is provided on the mounting base 40 , and a lifting end 61 of the jack 60 acts on the bottom of the leveling structure 33 to drive the horizontal adjustment of the prefabricated pier 10 .

[0053] The provision of the jack 60 on the mounting base 40 means that the jack 60 is fixed to the surface or interior of the mounting base 40, for example, by welding or bolting, and the lifting direction of the jack 60 is perpendicular to the horizontal plane. The jack 60 is hydraulically driven. After the precast pier 10 is initially positioned, the lifting end 61 forms surface contact with the bottom of the leveling structure 33, transmitting the lifting force to the leveling structure 33, thereby pushing the precast pier 10 to produce vertical displacement.

[0054] Specifically, after the prefabricated pier 10 is initially positioned, the jacks 60 on the mounting base 40 are activated, and the lifting end 61 pushes upward against the bottom of the leveling structure 33. Because the leveling structure 33 is rigidly connected to the prefabricated pier 10, the lifting force is converted through the leveling structure 33 into a lifting force on the pier's base. By controlling the lifting amount of the jacks 60 at different positions, the pier's tilt angle around the horizontal axis can be adjusted, ensuring that the axis of the sleeve 11 at the pier's base remains parallel to the axis of the embedded rebar 21, thereby achieving automatic level correction.

[0055] Through the above technical solution, the present invention realizes the precise horizontal adjustment of the prefabricated pier column 10. Thus, the installation accuracy of the prefabricated pier column 10 and the pedestal 20 is improved, and the precise alignment of the bottom sleeve 11 of the prefabricated pier column 10 and the embedded steel bars 21 of the pedestal 20 is ensured.

[0056] In some of the above-mentioned schemes, if the connection method between the adjusting component 30 and the prefabricated pier 10 lacks reliable fixation, it may cause the component to shift or fall off during the lifting process, affecting the alignment accuracy of the prefabricated pier 10 and the base 20, and it is difficult to adapt to the installation requirements of piers of different sizes.

[0057] For further information, please refer to 2 and Figure 4 The adjusting member 30 is detachably connected to the prefabricated pier column 10 through the first high-strength bolt 70.

[0058] Among them, the first high-strength bolt 70 refers to a fastener with a high strength grade, which is used to withstand the shear force and bending moment during the hoisting process of the prefabricated pier 10. The detachable connection refers to the formation of a non-fixed assembly relationship with the prefabricated pier 10 by bolts, which can be specifically achieved by using a flange structure in combination with bolt holes, so as to facilitate repeated disassembly and assembly operations during the construction process. Bolt holes are opened at the corresponding positions of the outer peripheral surface of the bottom of the prefabricated pier 10 and the adjusting member 30, and the first high-strength bolt 70 is passed through the bolt hole and a pre-tightening force is applied to complete the fixation. When it is necessary to adjust the position of the pier or replace parts, it is only necessary to remove the bolts to separate the adjusting member 30 from the prefabricated pier 10.

[0059] Through the above-mentioned technical solution, the present invention achieves rapid installation and removal of the adjusting member 30 from the prefabricated pier column 10. The high-strength bolt connection provides sufficient connection strength, ensuring that the adjusting member 30 maintains a secure connection with the prefabricated pier column 10 during the installation and leveling process. Furthermore, the detachable design facilitates removal of the adjusting member 30 after construction is complete without affecting subsequent construction.

[0060] In some of the above-mentioned schemes, the mounting base 40 is fixed to the top surface of the pedestal 20 and surrounds the pre-installation position of the prefabricated pier 10. However, in actual construction, the connection between the mounting base 40 and the pedestal 20 is not stable enough and is easily offset by the impact of lifting or the weight of the pier, resulting in a reduction in the alignment accuracy of the guide column 50 and the tapered hole 311, thereby affecting the precise insertion of the embedded steel bars 21 and the sleeve.

[0061] For further information, please refer to Figure 7 The mounting base 40 includes a base plate 41 and a plurality of mounting ears 42 distributed along the circumferential direction. Each mounting ear 42 is provided with a bolt hole 421 and is fixed to the base 20 by a second high-strength bolt 80 .

[0062] The base plate 41 is the main structure of the mounting base 40, supporting the guide column 50 and the jack 60. Mounting ears 42 are evenly distributed along the circumference of the base plate 41. Each mounting ear 42 has a bolt hole 421 for accommodating a second high-strength bolt 80. The second high-strength bolt 80 passes through the bolt hole 421 and is anchored within the base 20, forming a rigid connection. The base plate 41 and mounting ears 42 can be integrally cast or welded. The diameter of the bolt hole 421 matches the diameter of the second high-strength bolt 80. The number of mounting ears 42 is set according to the required load.

[0063] Specifically, when the mounting base 40 is fixed to the pedestal 20 via the second high-strength bolts 80, the base plate 41 covers the pre-installed area around the prefabricated pier 10 on the top surface of the pedestal 20. A plurality of mounting ears 42 are distributed along the edge of the base plate 41, and each mounting ear 42 is anchored to the pedestal 20 via the second high-strength bolts 80. The circumferentially distributed mounting ears 42 evenly distribute the force on the base plate 41, avoiding local stress concentration that may cause deformation of the base. The shear and tensile strength provided by the second high-strength bolts 80 can withstand the lateral impact force and vertical load generated by the prefabricated pier 10 during the hoisting process, preventing the mounting base 40 from shifting. During construction, the position of the mounting ears 42 is adaptively adjusted according to the distribution of the embedded steel bars 21 on the pedestal 20 to ensure that the guide column 50 and the tapered hole 311 maintain the preset alignment accuracy after the base is fixed.

[0064] For further information, please refer to Figures 1 to 8 In actual construction, the quick connection method of the assembled bridge pier quick connection device of the utility model specifically includes the following steps:

[0065] S1. Fix the mounting base: Fix the mounting base 40 to the top surface of the pedestal 20 with the second high-strength bolt 80, ensuring that the mounting base 40 is set around the pre-installed position of the prefabricated pier 10, and the base plate 41 is tightly fitted with the top surface of the pedestal 20, and the mounting ear 42 is firmly anchored to the pedestal 20 through the bolt hole 421, providing a stable reference for subsequent guiding and positioning.

[0066] S2. Install the adjusting member: The adjusting member 30 is detachably connected to the bottom outer surface of the prefabricated pier 10 using the first high-strength bolt 70. During connection, the horizontal position of the adjusting member 30 needs to be calibrated so that the tapered hole 311 on the adjusting member 30 corresponds to the position of the guide column 50 on the mounting base 40. This ensures that the guide column 50 can be accurately aligned with the tapered hole 311 during hoisting.

[0067] S3. Hoisting and alignment: Use a crane to slowly lift the prefabricated pier 10 and move it above the pre-installation position of the pedestal 20. Initially adjust the crane's posture so that the guide column 50 on the mounting base 40 is aligned with the large-diameter end of the tapered hole 311 on the adjustment member 30. At this time, a certain horizontal deviation is allowed, and the tolerance space at the large-diameter end of the tapered hole 311 is used to absorb the initial offset.

[0068] S4. Lowering and Correcting Deviation: Control the crane to slowly lower the precast pier 10, allowing the guide column 50 to gradually penetrate the corresponding tapered hole 311. During this process, the tapered guide head 51 at the end of the guide column 50 first contacts the inner wall of the tapered hole 311, generating a horizontal force component through the tapered surface interaction. As the precast pier 10 continues to fall, the tapered inner wall of the tapered hole 311 and the guide column 50 gradually tighten, pushing the precast pier 10 to automatically correct its horizontal deviation, ultimately guiding the precast pier 10 to the target position, allowing the embedded steel bars 21 on the pedestal 20 to smoothly insert into the sleeve 11 at the bottom of the precast pier 10.

[0069] S5. Horizontal Leveling: After the precast pier 10 is in place and the embedded rebar 21 is inserted into the bottom sleeve 11, if there is any tilt, the jack 60 on the installation base 40 is activated, so that the lifting end 61 of the jack 60 acts on the bottom of the leveling structure 33 of the adjustment member 30. By controlling the lifting amount of the jack 60 at different positions, the precast pier 10 is fine-tuned about the horizontal axis until its levelness meets the construction requirements, preventing the connection strength from being affected by tilt.

[0070] S6. Fixed connection: After the levelness of the precast pier column 10 is adjusted to a preset accuracy, grouting or other conventional fixing methods are used to form a stable connection between the bottom sleeve 11 of the precast pier column 10 and the embedded steel bars 21 of the pedestal 20, completing the structural fixation of the precast pier column 10 and the pedestal 20.

[0071] S7. Finishing and fixing: After the strength of the connection structure between the prefabricated pier 10 and the pedestal 20 reaches the required level, remove the first high-strength bolt 70 to separate the adjustment member 30 from the prefabricated pier 10. Reusable components such as the adjustment member 30 and the jack 60 are recovered to complete the installation of the prefabricated pier and the pedestal.

[0072] Through the above steps, the utility model utilizes the self-correcting characteristics of the conical structure and the synergistic effect of the mechanical leveling device to achieve efficient and accurate installation of the prefabricated pier and the base.

[0073] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A quick connection device for assembled bridge piers, used for installing prefabricated piers (10) and caps (20), characterized in that: It comprises an adjusting member (30), a mounting base (40) and a guide column (50), wherein: The adjusting member (30) is detachably connected to the bottom outer peripheral surface of the prefabricated pier (10); Two guide structures (31) are symmetrically provided on the regulating member (30), and a tapered hole (311) is provided on the guide structure (31), wherein the large-diameter end of the tapered hole (311) faces downward and the small-diameter end faces upward; The mounting base (40) is fixed to the top surface of the support platform (20), and the pre-installation position surrounding the prefabricated pier column (10) is arranged below the adjusting member (30); The mounting base (40) is fixedly provided with guide posts (50) corresponding one-to-one to the tapered holes (311); The guide column (50) is configured to penetrate the corresponding tapered hole (311) when the prefabricated pier column (10) is installed, and the tapered inner wall of the tapered hole (311) cooperates with the guide column (50) to guide the prefabricated pier column (10) to move to the target position, thereby achieving automatic position correction and allowing the embedded steel bars (21) of the pedestal (20) to be inserted into the bottom sleeve (11) of the prefabricated pier column (10).

2. The quick connection device for assembled bridge piers according to claim 1, characterized in that: The inner diameter of the large-diameter end of the tapered hole (311) is greater than three times the diameter of the guide column (50), and the diameter of the guide column (50) is smaller than the inner diameter of the small-diameter end of the tapered hole (311).

3. A quick connection device for assembled bridge piers according to claim 1 or 2, characterized in that: The top end of the guide column (50) is a conical guide head (51), and the taper of the conical guide head (51) matches the inner wall of the conical hole (311).

4. The quick connection device for assembled bridge piers according to claim 1, characterized in that: The height of the guide column (50) is greater than the depth of the tapered hole (311), and the height of the guide column (50) is greater than the exposed height of the embedded steel bars (21) on the bearing platform (20).

5. The quick connection device for assembled bridge piers according to claim 1, characterized in that: A mounting groove (32) is provided in the middle of the adjusting member (30), and a leveling structure (33) is fixed in the mounting groove (32).

6. The quick connection device for assembled bridge piers according to claim 5, characterized in that: A jack (60) is provided on the mounting base (40), and a lifting end (61) of the jack (60) acts on the bottom of the leveling structure (33) to drive the horizontal adjustment of the prefabricated pier column (10).

7. The quick connection device for assembled bridge piers according to claim 1, characterized in that: The adjusting member (30) is detachably connected to the prefabricated pier column (10) via a first high-strength bolt (70).

8. The quick connection device for assembled bridge piers according to claim 1, characterized in that: The mounting base (40) comprises a base plate (41) and a plurality of mounting ears (42) distributed along the circumferential direction, each mounting ear (42) being provided with a bolt hole (421) and being fixed to the support platform (20) via a second high-strength bolt (80).

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