Prefabricated bridge perpendicularity adjusting device

Abstract

The invention relates to the technical field of bridge construction, and discloses a prefabricated bridge perpendicularity adjusting device which comprises a first n-shaped plate, a second n-shaped plate, a first support, a first hydraulic cylinder, a second support, a second hydraulic cylinder and a top plate. During use, the four first hydraulic cylinders are controlled to work, and the four second supports can be driven to vertically move. And finally, the four top plates are driven to vertically move until the four top plates directly face the four side faces of the bearing platform. And then one or two second hydraulic cylinders in the opposite direction can be controlled according to the inclination direction of the prefabricated pier. And one or two top plates in the opposite direction are driven to move until the top plates abut against the bearing platform. When one or two top plates in the opposite direction abut against the bearing platform, due to the fact that the bearing platform is fixed to the ground, the prefabricated pier can be automatically corrected in the opposite direction under the action of counter-acting force. In the whole process, the hydraulic cylinder and the like do not need to be positioned, and the falling hidden danger does not exist. The adjustment is convenient, and the safety is improved.

Description

Technical Field

[0001] This application relates to the field of bridge construction technology, and in particular to a precast bridge verticality adjustment device. Background Art

[0002] A related technology (Announcement No.: CN118639541A) discloses a precast bridge verticality adjustment device, comprising four sets of fixing plates fixedly installed around the precast piers. Each fixing plate is fixedly equipped with a triangular component, and jacks are installed below each of the four triangular components. The four jacks are placed on a bearing platform. The four jacks are positioned by the cooperation of four positioning frames and four positioning sleeves. By moving four hooks to release the engagement with the four shafts, the four positioning frames can be retracted into the four housings.

[0003] In the process of implementing the technical solution disclosed herein, it was found that the above technical solution has at least the following problems:

[0004] This precast bridge verticality adjustment device, through its design of four sets of positioning frames and four sets of positioning sleeves, can quickly position four sets of jacks, improving the efficiency of verticality correction for precast piers. Furthermore, the design of retracting the four sets of positioning frames into four housings reduces space requirements. However, when the moving ends of the four sets of jacks extend or retract, relative movement inevitably occurs between the four sets of positioning frames and the four sets of positioning sleeves. Moreover, when the moving ends of the four sets of jacks extend a considerable distance, the four sets of positioning frames may detach from the four sets of positioning sleeves. This can lead to slippage between the moving ends of the four sets of jacks and the four sets of triangular fittings during adjustment, resulting in poor safety.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. This summary is not a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these technical solutions, but rather serves as an introduction to the detailed explanations that follow.

[0007] This disclosure provides a prefabricated bridge verticality adjustment device to improve safety during the adjustment process.

[0008] In some technical solutions, the precast bridge verticality adjustment device includes: a first C-shaped plate; a second C-shaped plate detachably installed on the first C-shaped plate, the second C-shaped plate forming a rectangular frame surrounding the precast bridge pier after being installed on the first C-shaped plate, and the rectangular frame clamping the precast bridge pier; a first support, respectively installed on three side walls of the first C-shaped plate and one side wall of the second C-shaped plate; a first hydraulic cylinder, respectively installed on four of the first supports; a second support, respectively installed on the moving ends of the four first hydraulic cylinders; a second hydraulic cylinder, respectively installed on four of the second supports; and a top plate, respectively installed on the moving ends of the four second hydraulic cylinders; wherein, after the rectangular frame clamps the precast bridge pier, the moving ends of the four first hydraulic cylinders all face the ground, and the moving ends of the four second hydraulic cylinders face the four sides of the pier cap.

[0009] Optionally, the first C-shaped plate includes first through holes respectively opened on its opposite side walls, and the second C-shaped plate includes second through holes respectively opened on its opposite side walls. After the rectangular frame clamps the precast bridge pier, the second through holes on both sides are respectively opposite to the first through holes on both sides. The system further includes: a third hydraulic cylinder installed on the other side wall of the second C-shaped plate; a clamping plate installed on the moving end of the third hydraulic cylinder and located between the opposite side walls of the second C-shaped plate; pads installed on the inner side of the second C-shaped plate and located on both sides of the third hydraulic cylinder; first guide rails respectively installed on the pads on both sides; and first sliders respectively... The first guide rails on both sides are slidably mounted; the insert plates are respectively mounted on the first sliders on both sides, and under the guiding and supporting action of the first guide rails and the first sliders on both sides, the insert plates on both sides can be inserted into the first through holes and the second through holes on both sides respectively; the baffles are connected to the clamping plate, located on both sides of the third hydraulic cylinder, and both pass through the second U-shaped plate, and the opposite sides of the baffles on both sides include inclined surfaces; the tension springs are respectively installed between the pads on both sides and the insert plates on both sides; wherein, under the tension of the tension springs on both sides, the insert plates on both sides abut against the opposite sides of the baffles on both sides respectively.

[0010] Optionally, it further includes: cam bearings, respectively mounted on the two side inserts; wherein, under the tension of the two side tension springs, the two side cam bearings abut against the opposite sides of the two side baffles.

[0011] Optionally, it further includes a connecting plate, installed between the two side baffles and located on the outside of the second C-shaped plate.

[0012] Optionally, it further includes: a third support, installed on the outer side of the second C-shaped plate and located on both sides of the third hydraulic cylinder; a second guide rail, respectively installed on the baffles on both sides; and a second slider, respectively slidably installed on the second guide rails on both sides and respectively connected to the third support on both sides; wherein the sliding direction of the second guide rails on both sides relative to the second sliders on both sides is the same as the movement direction of the moving end of the third hydraulic cylinder.

[0013] Optionally, it also includes: limiting pieces, which are respectively installed at the ends of the first guide rail on both sides and the second guide rail on both sides.

[0014] Optionally, it further includes: a first support plate, which is respectively installed on the moving ends of the four first hydraulic cylinders; a first optical axis, which is respectively evenly installed on the four first support plates; and four second supports, which are respectively installed on the ends of the plurality of first optical axes.

[0015] Optionally, it further includes: a second support plate, which is respectively opposite to the four first supports; a support rod, which is respectively evenly installed between the four second support plates and the four first supports; a first linear bearing, which is respectively evenly installed on the four second support plates; and a plurality of first optical axes are respectively slidably passed through the plurality of first linear bearings; wherein the sliding direction of the plurality of first optical axes relative to the plurality of first linear bearings is the same as the movement direction of the moving ends of the four first hydraulic cylinders.

[0016] Optionally, it further includes: a second optical axis, which is slidably disposed through the four second supports and is connected to the plurality of top plates respectively; wherein the sliding direction of the plurality of second optical axes relative to the four second supports is the same as the movement direction of the moving ends of the four second hydraulic cylinders.

[0017] Optionally, it also includes: a second linear bearing, which is slidably mounted on a plurality of the second optical axes and respectively mounted on four of the second supports.

[0018] The present technical solution provides a precast bridge verticality adjustment device, which can achieve the following technical effects:

[0019] This disclosure provides a precast bridge verticality adjustment device, comprising a first C-shaped plate, a second C-shaped plate, a first support, a first hydraulic cylinder, a second support, a second hydraulic cylinder, and a top plate. The second C-shaped plate is detachably installed on the first C-shaped plate, forming a rectangular frame that surrounds the precast bridge pier, and the rectangular frame clamps the precast bridge pier. The first supports are respectively installed on three side walls of the first C-shaped plate and one side wall of the second C-shaped plate, respectively supporting the installation of the first hydraulic cylinders. The first hydraulic cylinders are respectively installed on four first supports, respectively providing driving force to achieve vertical movement. The second supports are respectively installed on the moving ends of the four first hydraulic cylinders, respectively moving vertically under the drive of the four first hydraulic cylinders. The second hydraulic cylinders are respectively installed on four second supports, respectively providing driving force to achieve lateral movement. The top plate is respectively installed on the moving ends of the four second hydraulic cylinders, respectively moving laterally under the drive of the four first hydraulic cylinders. After the rectangular frame clamps the precast bridge pier, the moving ends of the four first hydraulic cylinders all face the ground, and the moving ends of the four second hydraulic cylinders face the four sides of the pier cap respectively.

[0020] In use, the second C-shaped plate is installed after the first C-shaped plate, forming a rectangular frame that surrounds and clamps the precast pier. At this point, the moving ends of the four first hydraulic cylinders face the ground, and the moving ends of the four second hydraulic cylinders face the four sides of the pier cap. Controlling the four first hydraulic cylinders moves the four second supports vertically, ultimately moving the four top plates vertically until they are directly opposite the four sides of the pier cap. Then, depending on the inclination direction of the precast pier, one or two second hydraulic cylinders in the opposite direction can be controlled, moving one or two top plates in the opposite direction until they abut against the pier cap. Once one or two top plates in the opposite direction abut against the pier cap, because the pier cap is fixed to the ground, the precast pier automatically corrects itself in the opposite direction under the reaction force. The entire process requires no positioning of the hydraulic cylinders and eliminates the risk of detachment. This design facilitates adjustment and improves safety.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a front view structural schematic diagram of a prefabricated bridge verticality adjustment device provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure at point BB;

[0026] Figure 4 yes Figure 3 Enlarged structural diagram at point C;

[0027] Figure 5 This is a top view schematic diagram of a prefabricated bridge verticality adjustment device provided in an embodiment of this disclosure;

[0028] Figure 6 yes Figure 5 Enlarged structural diagram at point D;

[0029] Figure 7 This is a rear view structural schematic diagram of a prefabricated bridge verticality adjustment device provided in an embodiment of this disclosure;

[0030] Figure 8 This is a bottom view structural schematic diagram of a prefabricated bridge verticality adjustment device provided in an embodiment of this disclosure.

[0031] Figure label:

[0032] 1. First C-shaped plate; 2. Second C-shaped plate; 3. First support; 4. First hydraulic cylinder; 5. Second support; 6. Second hydraulic cylinder; 7. Top plate; 8. Third hydraulic cylinder; 9. Clamping plate; 10. Pad block; 11. First guide rail; 12. First slider; 13. Insert plate; 14. Baffle; 15. Tension spring; 16. Cam bearing; 17. Connecting plate; 18. Third support; 19. Second guide rail; 20. Second slider; 21. Limiting piece; 22. First support plate; 23. First optical axis; 24. Second support plate; 25. Support rod; 26. First linear bearing; 27. Second optical axis; 28. Second linear bearing. Detailed Implementation

[0033] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0034] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0035] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0036] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0037] Unless otherwise stated, the term "multiple" means two or more.

[0038] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0039] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0041] Combination Figures 1 to 8As shown, this embodiment of the present disclosure provides a precast bridge verticality adjustment device, including a first C-shaped plate 1, a second C-shaped plate 2, a first support 3, a first hydraulic cylinder 4, a second support 5, a second hydraulic cylinder 6, and a top plate 7. The second C-shaped plate 2 is detachably installed on the first C-shaped plate 1, forming a rectangular frame that surrounds the precast bridge pier, and the rectangular frame clamps the precast bridge pier. The first supports 3 are respectively installed on three side walls of the first C-shaped plate 1 and one side wall of the second C-shaped plate 2, respectively, for supporting the installation of the first hydraulic cylinders 4. The first hydraulic cylinders 4 are respectively installed on the four first supports 3, respectively, for providing driving force to achieve vertical movement. The second supports 5 are respectively installed on the moving ends of the four first hydraulic cylinders 4, respectively, and move vertically under the drive of the four first hydraulic cylinders 4. The second hydraulic cylinders 6 are respectively installed on the four second supports 5, respectively, for providing driving force to achieve lateral movement. The top plate 7 is installed on the moving ends of the four second hydraulic cylinders 6, and moves laterally under the drive of the four first hydraulic cylinders 4. After the rectangular frame clamps the precast pier, the moving ends of the four first hydraulic cylinders 4 all face the ground, and the moving ends of the four second hydraulic cylinders 6 face the four sides of the pier cap.

[0042] This embodiment of the invention provides a precast bridge verticality adjustment device. After the second C-shaped plate 2 is installed on the first C-shaped plate 1, it forms a rectangular frame that surrounds and clamps the precast bridge pier. At this time, the moving ends of the four first hydraulic cylinders 4 face the ground, and the moving ends of the four second hydraulic cylinders 6 face the four sides of the pier cap. Controlling the operation of the four first hydraulic cylinders 4 moves the four second supports 5 vertically. This ultimately moves the four top plates 7 vertically until they are directly opposite the four sides of the pier cap. Then, depending on the inclination direction of the precast bridge pier, one or two second hydraulic cylinders 6 in the opposite direction can be controlled. This moves one or two top plates 7 in the opposite direction until they abut against the pier cap. When one or two top plates 7 in the opposite direction abut against the pier cap, since the pier cap is fixed to the ground, the precast bridge pier automatically corrects itself in the opposite direction under the action of the reaction force. The entire process requires no positioning of the hydraulic cylinders, etc., and there is no risk of detachment. This method is convenient for adjustment and improves safety.

[0043] Optionally, combined Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the first C-shaped plate 1 includes first through holes respectively opened on its opposite side walls, and the second C-shaped plate 2 includes second through holes respectively opened on its opposite side walls. After the rectangular frame clamps the precast bridge pier, the second through holes on both sides are opposite to the first through holes on both sides. It also includes a third hydraulic cylinder 8, a clamping plate 9, a pad block 10, a first guide rail 11, a first slider 12, an insert plate 13, a baffle 14, and a tension spring 15. The third hydraulic cylinder 8 is installed on the other side wall of the second C-shaped plate 2 to provide driving force. The clamping plate 9 is installed at the moving end of the third hydraulic cylinder 8 and is located between the opposite side walls of the second C-shaped plate 2 to clamp the precast bridge pier. The pad block 10 is installed on the inner side of the second C-shaped plate 2 and is located on both sides of the third hydraulic cylinder 8, both serving to support and elevate the pier. The first guide rail 11 is installed on the pad blocks 10 on both sides respectively to support the slidable first slider 12. The first slider 12 is slidably installed on the first guide rail 11 on both sides, both serving to guide and support the pier. Insert plates 13 are respectively installed on the first sliders 12 on both sides. Under the guidance and support of the first guide rails 11 and the first sliders 12 on both sides, the insert plates 13 on both sides can be inserted into the first through holes and the second through holes on both sides, respectively. Baffles 14 are connected to the clamping plate 9, located on both sides of the third hydraulic cylinder 8, and both pass through the second U-shaped plate 2. The opposite sides of the baffles 14 on both sides include inclined surfaces, which are used to push the insert plates 13 on both sides to move. Tension springs 15 are respectively installed between the pads 10 on both sides and the insert plates 13 on both sides, and are used to provide tension. Under the tension of the tension springs 15 on both sides, the insert plates 13 on both sides abut against the opposite sides of the baffles 14 on both sides.

[0044] In this embodiment, after the first C-shaped plate 1 and the second C-shaped plate 2 surround the precast bridge pier and form a rectangular frame, the moving end of the third hydraulic cylinder 8 is extended, which moves the clamping plate 9 and simultaneously moves the side baffles 14. At this time, under the guiding support of the first guide rails 11 and the first sliders 12 on both sides, the inclined surfaces on both sides gradually push the side inserts 13 away from each other until they are inserted into the first through holes and the second through holes on both sides, thereby limiting the first C-shaped plate 1 and the second C-shaped plate 2. Finally, the clamping plate 9 and the first C-shaped plate 1 can clamp the bridge pier for verticality adjustment. After the adjustment is completed, the moving end of the third hydraulic cylinder 8 is retracted, which resets the clamping plate 9 and releases the bridge pier. At the same time, the side baffles 14 are reset. At this time, under the guiding support of the first guide rails 11 and the first sliders 12 on both sides, and under the tension of the tension springs 15 on both sides, the side inserts 13 can move closer to each other. The first and second U-shaped plates 1 and 2 can be disassembled by removing them from the first and second through holes on both sides, respectively. Therefore, it has advantages in both installation and disassembly. It is easy to fix the entire device to the precast bridge pier, and also convenient for disassembly and reuse.

[0045] Optionally, combined Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it also includes cam bearings 16. Cam bearings 16 are respectively installed on the two side plates 13. Under the tension of the two side tension springs 15, the two side cam bearings 16 abut against the opposite sides of the two side baffles 14.

[0046] In this embodiment, cam bearings 16 are also installed on the two side insert plates 13. Under the tension of the two side tension springs 15, the two side cam bearings 16 abut against the opposite sides of the two side baffles 14 to prevent the two side insert plates 13 from abutting against the two side baffles 14. This reduces friction and thus reduces wear and damage. In use, after the first C-shaped plate 1 and the second C-shaped plate 2 surround the precast bridge pier column and form a rectangular frame, the moving end of the third hydraulic cylinder 8 is extended, which drives the clamping plate 9 to move, and at the same time drives the two side baffles 14 to move. At this time, under the guiding support of the two side first guide rails 11 and the two side first sliders 12, the two side inclined surfaces can gradually push the two side cam bearings 16 away from each other, thereby driving the two side insert plates 13 away from each other, until they are inserted into the two side first through holes and the two side second through holes respectively, thereby limiting the first C-shaped plate 1 and the second C-shaped plate 2.

[0047] Optionally, combined Figure 1 , Figure 3 and Figure 5 As shown, it also includes a connecting plate 17. The connecting plate 17 is installed between the two side baffles 14 and is located on the outside of the second U-shaped plate 2.

[0048] In this embodiment, a connecting plate 17 is also included, which is installed between the two side baffles 14 and located outside the second C-shaped plate 2. The connecting plate 17 forms a rectangular structure with the pressure plate and the two side baffles 14, thereby improving the overall structural strength.

[0049] Optionally, combined Figure 3 , Figure 5 and Figure 6 As shown, the system also includes a third support 18, a second guide rail 19, and a second slider 20. The third support 18 is installed on the outer side of the second U-shaped plate 2 and is located on both sides of the third hydraulic cylinder 8, serving to support the installation of the second slider 20. The second guide rails 19 are respectively installed on the two side baffles 14, also serving to support the installation of the second slider 20. The second slider 20 is slidably installed on the two side second guide rails 19 and is connected to the two side third supports 18, jointly providing guidance and support. The sliding direction of the two side second guide rails 19 relative to the two side second sliders 20 is the same as the movement direction of the moving end of the third hydraulic cylinder 8.

[0050] In this embodiment, since the sliding direction of the second guide rails 19 relative to the second sliders 20 is the same as the movement direction of the moving end of the third hydraulic cylinder 8, the second guide rails 19 will slide relative to the second sliders 20 as the moving end of the third hydraulic cylinder 8 moves. This serves as a guide and support, improving the movement accuracy of the clamping plate 9 and reducing the radial force on the moving end of the third hydraulic cylinder 8, thus extending the service life of the third hydraulic cylinder 8.

[0051] Optionally, combined Figure 3 and Figure 4 As shown, it also includes a limiting piece 21. The limiting pieces 21 are respectively installed at the ends of the first guide rail 11 on both sides and the second guide rail 19 on both sides.

[0052] In this embodiment, the system further includes limiting pieces 21 respectively installed at the ends of the first guide rails 11 on both sides and the second guide rails 19 on both sides. The multiple limiting pieces 21 are used to limit the movement of the first guide rails 11 on both sides and the first sliders 12 on both sides, and to prevent the second guide rails 19 on both sides from falling off.

[0053] Optionally, combined Figure 7 As shown, it also includes a first support plate 22 and a first optical axis 23. The first support plate 22 is respectively installed on the moving ends of the four first hydraulic cylinders 4, and is used to support and install multiple first optical axes 23. The first optical axes 23 are evenly installed on the four first support plates 22, and are used to support and install four second supports 5. The four second supports 5 are respectively installed at the ends of the multiple first optical axes 23.

[0054] In this embodiment, multiple first optical axes 23 are used to determine the relative positions of the four first support plates 22 and the four second supports 5, thereby extending the length of the moving ends of the four first hydraulic cylinders 4, which facilitates the alignment of the four top plates 7 with the four sides of the support platform. During use, controlling the four first hydraulic cylinders 4 causes the four first support plates 22 to move vertically. This, in turn, causes the multiple first optical axes 23 to move vertically, which in turn causes the four second supports to move vertically. Finally, this causes the four top plates 7 to move vertically until they are directly aligned with the four sides of the support platform.

[0055] Optionally, combined Figure 1 and Figure 7As shown, the system also includes a second support plate 24, support rods 25, and first linear bearings 26. The second support plates 24 are respectively opposite to the four first supports 3. Support rods 25 are evenly installed between the four second support plates 24 and the four first supports 3, respectively, and are used to determine the relative positions of the four second support plates 24 and the four first supports 3. First linear bearings 26 are evenly installed on the four second support plates 24, each used to support the sliding linear bearings. Multiple first optical axes 23 are slidably passed through the multiple first linear bearings 26, collectively serving as guides and supports. The sliding direction of the multiple first optical axes 23 relative to the multiple first linear bearings 26 is the same as the movement direction of the moving ends of the four first hydraulic cylinders 4.

[0056] In this embodiment, since the sliding direction of the plurality of first optical axes 23 relative to the plurality of first linear bearings 26 is the same as the movement direction of the moving ends of the four first hydraulic cylinders 4, the plurality of first optical axes 23 will slide relative to the plurality of first linear bearings 26 as the moving ends of the four first hydraulic cylinders 4 move. This serves as a guide and support, thereby improving the stability of the four second supports 5 during movement, reducing the radial force on the moving ends of the four first hydraulic cylinders 4, and extending the service life of the four first hydraulic cylinders 4.

[0057] Optionally, combined Figure 1 , Figure 5 , Figure 7 and Figure 8 As shown, it also includes a second optical axis 27. The second optical axes 27 are slidably disposed through the four second supports 5 and are respectively connected to the multiple top plates 7. The sliding direction of the multiple second optical axes 27 relative to the four second supports 5 is the same as the movement direction of the moving ends of the four second hydraulic cylinders 6.

[0058] In this embodiment, since the sliding directions of the plurality of second optical axes 27 relative to the four second supports 5 are respectively the same as the movement directions of the moving ends of the four second hydraulic cylinders 6, the plurality of second optical axes 27 will slide relative to the four second supports 5 respectively as the moving ends of the four second hydraulic cylinders 6 move. This serves as a guide and support, thereby improving the stability of the four top plates 7 during movement, reducing the radial force on the moving ends of the four second hydraulic cylinders 6, and extending the service life of the four second hydraulic cylinders 6.

[0059] Optionally, combined Figure 1 , Figure 5 , Figure 7 and Figure 8 As shown, it also includes a second linear bearing 28. The second linear bearing 28 is slidably mounted on a plurality of second optical axes 27 and is respectively installed on four second supports 5.

[0060] In this embodiment, a second linear bearing 28 is further included, which is slidably fitted onto the plurality of second optical axes 27 and respectively mounted on the four second supports 5. The plurality of second linear bearings 28 are used to reduce the friction between the plurality of second optical axes 27 and the plurality of second supports 5, and to improve the accuracy of the plurality of second optical axes 27 sliding relative to the plurality of second supports 5, thereby further improving the stability of the four top plates 7 when they move.

[0061] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A precast bridge verticality adjustment device, characterized in that, include: First C-shaped plate; The second C-shaped plate is detachably installed on the first C-shaped plate. After the second C-shaped plate is installed on the first C-shaped plate, it forms a rectangular frame that surrounds the precast bridge pier, and the rectangular frame clamps the precast bridge pier. The first support is installed on three side walls of the first C-shaped plate and one side wall of the second C-shaped plate, respectively. The first hydraulic cylinder is respectively installed on the four first supports; The second support is installed on the moving end of each of the four first hydraulic cylinders; The second hydraulic cylinder is respectively installed on the four second supports; The top plate is installed on the moving end of each of the four second hydraulic cylinders; After the rectangular frame clamps the precast bridge pier, the moving ends of the four first hydraulic cylinders all face the ground, and the moving ends of the four second hydraulic cylinders face the four sides of the pier cap respectively.

2. The precast bridge verticality adjustment device according to claim 1, characterized in that, The first shaped plate includes first through holes respectively formed on its opposite side walls, and the second shaped plate includes second through holes respectively formed on its opposite side walls. After the rectangular frame clamps the precast bridge pier, the second through holes on both sides are respectively opposite to the first through holes on both sides. The structure also includes: The third hydraulic cylinder is installed on the other side wall of the second C-shaped plate; The clamping plate is installed on the moving end of the third hydraulic cylinder and is located between the opposite side walls of the second C-shaped plate; The pad is installed on the inner side of the second C-shaped plate and located on both sides of the third hydraulic cylinder; The first guide rail is installed on the pads on both sides respectively; The first slider is slidably mounted on the first guide rail on both sides; Insert plates are respectively installed on the first sliders on both sides. Under the guiding and supporting action of the first guide rails on both sides and the first sliders on both sides, the insert plates on both sides can be inserted into the first through holes on both sides and the second through holes on both sides respectively. The baffles are connected to the clamping plate and are located on both sides of the third hydraulic cylinder, and both pass through the second C-shaped plate. The opposite sides of the baffles on both sides include inclined surfaces. Tension springs are respectively installed between the pads on both sides and the inserts on both sides; Under the tension of the tension springs on both sides, the insert plates on both sides abut against the opposite sides of the baffles on both sides.

3. The precast bridge verticality adjustment device according to claim 2, characterized in that, Also includes: Cam bearings are respectively installed on the insert plates on both sides; Under the tension of the tension springs on both sides, the cam bearings on both sides abut against the opposite sides of the baffles on both sides.

4. The precast bridge verticality adjustment device according to claim 2, characterized in that, Also includes: A connecting plate is installed between the baffles on both sides and is located on the outside of the second C-shaped plate.

5. A precast bridge verticality adjustment device according to claim 2, characterized in that, Also includes: The third support is installed on the outer side of the second C-shaped plate and is located on both sides of the third hydraulic cylinder; The second guide rail is installed on the baffles on both sides respectively; The second slider is slidably mounted on the second guide rails on both sides and is connected to the third support on both sides respectively; The sliding direction of the second guide rails on both sides relative to the second sliders on both sides is the same as the movement direction of the moving end of the third hydraulic cylinder.

6. The precast bridge verticality adjustment device according to claim 5, characterized in that, Also includes: Limiting plates are respectively installed at the ends of the first guide rail on both sides and the second guide rail on both sides.

7. A precast bridge verticality adjustment device according to any one of claims 1 to 6, characterized in that, Also includes: The first support plate is installed on the moving end of each of the four first hydraulic cylinders; The first optical axis is evenly installed on the four first support plates, and the four second supports are installed on the ends of the multiple first optical axes.

8. A precast bridge verticality adjustment device according to claim 7, characterized in that, Also includes: The second support plate is respectively opposite to the four first supports; The support rods are evenly installed between the four second support plates and the four first supports, respectively; The first linear bearings are evenly installed on the four second support plates, and the multiple first optical axes are slidably passed through the multiple first linear bearings. The sliding direction of the plurality of first optical axes relative to the plurality of first linear bearings is the same as the movement direction of the moving ends of the four first hydraulic cylinders.

9. A precast bridge verticality adjustment device according to any one of claims 1 to 6, characterized in that, Also includes: The second optical axis is slidably inserted through the four second supports and is connected to the multiple top plates respectively; The sliding direction of the plurality of second optical axes relative to the four second supports is the same as the movement direction of the moving ends of the four second hydraulic cylinders.

10. A precast bridge verticality adjustment device according to claim 9, characterized in that, Also includes: The second linear bearing is slidably mounted on multiple second optical axes and is respectively installed on four second supports.

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