Assembly type bridge prefabricated pier column mounting and positioning device

Abstract

The invention relates to the technical field of pier column installation and positioning, and discloses an assembly type bridge prefabricated pier column installation and positioning device which comprises a positioning mechanism, a guiding structure, a steel bar and a base platform. A connecting plate extrudes inwards to drive a rubber block to abut against the inner wall of a positioning plate at the position of a rail groove, and the rubber block and a supporting structure abut against the positioning plate synchronously to form a triangular shape; the stability from the supporting structure in the triangular shape to the bottom edge of the connecting plate is kept, then the sliding state of the positioning plate perpendicular to the adjacent positioning plate is achieved, the pier column is loosened and fixed at the position of the fixing plate after being positioned, then the pier column slides again to move and slide out of the rail groove, the effect of quick dismounting and mounting fixing is achieved, and the situation that dismounting is inconvenient after pier column positioning is completed is prevented. And the supporting mode is gradually changed after the buffering structure in the plane state is subjected to pier column shaking and downward mounting force, so that the pier column eliminates the shaking force and accurately enters the steel bar position from the middle position, and the problem that the pier column is likely to be collided and damaged due to shaking during mounting is solved.

Description

Technical Field

[0001] The invention relates to the technical field of pier column installation and positioning, and in particular to a prefabricated pier column installation and positioning device for assembled bridges. Background Art

[0002] The sizes of prefabricated piers of assembled bridges will be different. Before installation, the size of the positioning device needs to be adjusted according to the size of the pier. The existing positioning device is usually assembled in a square state. The pier is installed from the middle of the positioning device. After the installation is completed, it needs to be disassembled and transferred to the next use. The assembled positioning device is usually not easy to disassemble, and the positioning device cannot be disassembled and installed conveniently and quickly. In addition, the prefabricated piers of assembled bridges are suspended in a hanging state during installation, and are prone to shaking when moving. The pier is also in a shaking state when entering the positioning device. The pier has an inclined plate on the positioning device to guide the entry, but the force of the pier shaking will collide left and right to damage the positioning device. The continuous shaking makes it difficult for the pier to accurately enter the positioning device for vertical installation, thereby affecting the stability of the positioning installation. Summary of the invention

[0003] The present invention provides a prefabricated pier installation and positioning device for an assembled bridge, which overcomes the shortcomings described in the background technology.

[0004] The technical solution adopted by the present invention to solve its technical problem is: The assembly type bridge prefabricated pier installation positioning device comprises a positioning mechanism, a guide structure, steel bars, and a base, wherein the guide structure is arranged at the upper end of the positioning mechanism, the steel bars are arranged in the middle of the base, and the pier is vertically inserted into the steel bars for matching and fixing under the guidance of the guide structure, the positioning mechanism is fixed on the surface of the base, the positioning mechanism is slidably matched with the adjacent positioning mechanisms, and the four positioning mechanisms slide and unfold mutually; The positioning mechanism is provided with a fixer, a fixing plate, a positioning plate, and a rail groove. The rail groove is arranged on the inner side of the positioning plate. There are four positioning plates, and a fixer and a fixing plate are arranged on the outer side of each positioning plate. One end of the positioning plate is inserted and slid into the outer side of the rail groove of the adjacent positioning plate. After the four positioning plates are slid and adjusted, the fixer is tightened and pressed against the inner wall of the rail groove position, so that the positioning plate and the adjacent positioning plates are fixed at a right angle, and the four positioning plates form a "mouth" shape and slide relative to each other.

[0005] A better technical solution: the fixer is provided with a screw, a supporting structure, a connecting plate, a pressure plate, and a rubber block. The connecting plate is arranged on the outside of the positioning plate at an angle of 28°. The screw is arranged on the outside of the positioning plate and passes through the middle of the connecting plate. A nut is arranged on the outside of the screw to rotate and push the connecting plate inward for extrusion. Under the support of the positioning plate, the connecting plate elastically bends inward and drives the rubber block at the outer end to press against the inner wall of the rail groove position. The pressure plate is arranged on the inner side of the connecting plate and is inserted into the supporting structure. When the connecting plate is elastically bent, the pressure plate translates and extrude in the supporting structure, so that the supporting structure expands and presses against the inner wall of the rail groove position. The rubber block and the supporting structure press against the positioning plate at two points to form a triangular fixation.

[0006] A better technical solution: the supporting structure is provided with a fixed block, a bearing block, a force-bearing rod, and a sliding bar. The two bearing blocks are arranged on the left and right sides of the force-bearing rod, and the bearing block is fixed inside the fixed block to support the force-bearing rod. The two sliding bars are symmetrically distributed on both sides of the fixed block. The fixed block is limited and slides in the rail groove through the sliding bar. The pressure plate is inserted into the fixed block to press the side of the force-bearing rod, and the force-bearing rod is moved and deformed outward under the support of the bearing block, so that the force-bearing rod and the rubber block are synchronously pressed against the inner wall of the rail groove.

[0007] A better technical solution: the slide bar is a rectangular structure, and the slide bar maintains horizontal movement when sliding in the rail groove. When the positioning plate is tilted, it drives the fixed block to rotate. At this time, the left and right sides of the slide bar press against the inner wall of the rail groove to block it.

[0008] A better technical solution: an opening slightly larger than the shape of the pressure plate is provided on the lower side of the fixed block, and the opening is located to the right of the force-bearing rod. When the pressure plate is inserted into the fixed block from the opening, it squeezes and drives the force-bearing rod to rotate around the bearing block, and the pressure plate is inserted to press the force-bearing rod from the side.

[0009] A preferred technical solution: the force-bearing rod is provided with a plastic ring, a connecting rod, and a rubber ring. The plastic ring is arranged inside the rubber ring, and the rubber ring is fitted to the connecting rod. When the rubber ring is in a stationary state, the plastic ring and the connecting rod are located on the same central axis. When the pressure plate squeezes the side of the rubber ring, the rubber ring is driven and rotated by the pressure plate, so that the position where the rubber ring contacts the pressure plate is compressed inward, and the plastic ring is offset to one side from the center of the connecting rod. At this time, the left side of the rubber ring is thicker than the right side, and then the rubber ring is pressed against the inner wall of the outer rail groove position under the elastic force of the plastic ring.

[0010] A preferred technical solution: the guiding structure is provided with a slide groove, a first spring, a guide plate, a buffer structure, an elastic plate, and a movable plate. The first spring is arranged at the lower end of the elastic plate and presses against the side of the guide plate for compression. When the pier moves downward, it presses the surface of the buffer structure, and drives the elastic plate to rotate on the side hinge of the movable plate, and guides the pier to move downward. When there is an offset force on the pier, the pier contacts the guide plate and slides into the middle of the "mouth" shape on the inner side of the positioning mechanism.

[0011] A better technical solution: the elastic plate rotates to guide the pier to pass through and elastically compress the first spring, the guide plate is inclined outward by 20°, and a slide groove is set at the upper end of the guide plate, the movable plate slides in the slide groove, and slides to the relative position in the middle of the "mouth" shape.

[0012] A preferred technical solution: the outer side of the elastic plate is in an inclined state, and the trapezoidal plate is just in a vertical state when the outer side of the elastic plate is pressed against the support block.

[0013] A better technical solution: the buffer structure is provided with a second spring and a trapezoidal plate, wherein the second spring is arranged on the side of the support block and fixedly connected in the elastic plate, and the support block is arranged at the lower end of the trapezoidal plate. When the trapezoidal plate is driven to move downward by the pier, the support block pulls the second spring to expand and contract, so that the support block turns and presses against the side of the elastic plate, and after the trapezoidal plate turns, its surface contacts the outer side of the pier, and presses and guides when the pier moves downward.

[0014] Compared with the prior art, this technical solution has the following advantages: The present invention controls the connecting plate to bend inwards and squeeze the pressure plate by a screw rod, and the pressure plate is inserted into the supporting structure to expand the width of the supporting structure, and the connecting plate is squeezed inwards to drive the rubber block to press against the inner wall of the positioning plate at the rail groove position, and the rubber block and the supporting structure are synchronously pressed against the positioning plate to form a triangular shape, so as to maintain the stability of the supporting structure to the bottom edge of the connecting plate in the triangular shape, thereby realizing the sliding state of the positioning plate perpendicular to the adjacent positioning plate, and after the pier is positioned, it is loosened and fixed at the fixed plate position, and the nut in the screw is unscrewed again to loosen the compression on the connecting plate, so that the supporting structure and the rubber block do not press against the adjacent positioning plate, and then slide out from the rail groove again, thereby realizing the effect of rapid removal and installation and fixing, and preventing the inconvenience of disassembly after the pier positioning is completed.

[0015] When the pier is installed in the present invention, it moves downward and contacts with the buffer structure. Under the gravity of the pier, the elastic plate is driven to rotate downward with the hinge on the side of the moving plate, and the elastic plate is squeezed by the first spring for compression. At this time, the buffer structure is driven by the elastic plate to rotate and is in an inclined state. The buffer structure in the inclined state blocks the force of the pier shaking left and right, so that the trapezoidal plate blocks the shaking force around the pier, and then guides the pier into the inclined edge of the guide plate below. In the present invention, the buffer structure in a planar state is gradually changed in support mode after being subjected to the shaking of the pier and the downward force of the installation, so that the pier eliminates the shaking force and accurately enters the steel bar position in the middle position, thereby preventing the pier from shaking during installation and being easily damaged by collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 This is an overall diagram of the present invention.

[0018] Figure 2 It is a plan view of the positioning mechanism.

[0019] Figure 3 A three-dimensional schematic diagram of the fixator.

[0020] Figure 4 A three-dimensional schematic diagram of the supporting structure.

[0021] Figure 5 It is a three-dimensional schematic diagram of the load-bearing rod.

[0022] Figure 6 It is a three-dimensional schematic diagram of the coordination between the force-bearing rod and the pressure plate.

[0023] Figure 7 A three-dimensional schematic diagram of the guiding structure.

[0024] Figure 8 A three-dimensional perspective diagram of the buffer structure.

[0025] Fig. 9 It is a side schematic diagram of the cooperation between the buffer structure and the elastic plate.

[0026] In the figure: positioning mechanism-1, guide structure-2, steel bar-3, base-4, fixer-11, fixing plate-12, positioning plate-13, rail groove-14.

[0027] Screw rod-111, supporting structure-112, connecting plate-113, pressing plate-114, rubber block-115.

[0028] Fixed block 1121, bearing block 1122, force rod 1123, slide bar 1124.

[0029] Plastic ring-231, connecting rod-232, rubber ring-233.

[0030] Slide groove 21, first spring 22, guide plate 23, buffer structure 24, elastic plate 25, movable plate 26, second spring 241, trapezoidal plate 242, support block 243. DETAILED DESCRIPTION

[0031] like Figures 1 to 9 As shown, the present invention proposes an installation and positioning device for prefabricated piers of assembled bridges, comprising a positioning mechanism 1, a guide structure 2, steel bars 3, and a base 4, wherein the guide structure 2 is arranged at the upper end of the positioning mechanism 1, the steel bars 3 are arranged in the middle of the base 4, and the piers are vertically inserted into the steel bars 3 under the guidance of the guide structure 2 and are matched and fixed, the positioning mechanism 1 is fixed on the surface of the base 4, the positioning mechanism 1 is slidably matched with the adjacent positioning mechanisms 1, and the four positioning mechanisms 1 slide and unfold mutually; The positioning mechanism 1 is provided with a fixer 11, a fixing plate 12, a positioning plate 13, and a rail groove 14. The rail groove 14 is provided on the inner side of the positioning plate 13. There are four positioning plates 13, and a fixer 11 and a fixing plate 12 are provided on the outer side of each positioning plate 13. One end of the positioning plate 13 is inserted and slid into the outer side of the rail groove 14 of the adjacent positioning plate 13. After the four positioning plates 13 are slid and adjusted, the fixer 11 is tightened and pressed against the inner wall of the rail groove 14, so that the positioning plate 13 is fixed at a right angle to the adjacent positioning plates 13, and the four positioning plates 13 form a "mouth" shape and slide relative to each other.

[0032] Among them, the fixer 11 is provided with a screw 111, a supporting structure 112, a connecting plate 113, a pressing plate 114, and a rubber block 115. The connecting plate 113 is arranged at an angle of 28° on the outside of the positioning plate 13. The screw 111 is arranged on the outside of the positioning plate 13, and the screw 111 passes through the middle of the connecting plate 113. A nut is arranged on the outside of the screw 111 to rotate and push the connecting plate 113 to be squeezed inward. Under the support of the positioning plate 13, the connecting plate 113 elastically bends inward and drives the rubber block 115 at the outer end to press against the inner wall of the rail groove 14. The pressing plate 114 is arranged on the inner side of the connecting plate 113, and the pressing plate 114 is inserted into the supporting structure 112. When the connecting plate 113 is elastically bent, the pressing plate 114 is translated and squeezed in the supporting structure 112, so that the supporting structure 112 expands and presses against the inner wall of the rail groove 14. The rubber block 115 and the supporting structure 112 press against the positioning plate 13 at two points to form a triangle fixation.

[0033] In the present invention, one of the positioning plates 13 slides into the outer end entrance of the track groove 14 in the other positioning plate 13, so that the support structure 112 and the connecting plate 113 both slide in the track groove 14, and the connecting plate 113 is controlled by the screw 111 to bend inward and squeeze the pressing plate 114. At this time, the pressing plate 114 is inserted into the supporting structure 112 to expand the width of the supporting structure 112, and the connecting plate 113 is squeezed inward to drive the rubber block 115 to press against the inner wall of the positioning plate 13 at the position of the track groove 14. The rubber block 115 and the supporting structure 112 are synchronously pressed against the positioning plate 13 to form a triangular shape, and the two sides of the supporting structure 112 slide horizontally in the track groove 14 to maintain the support structure 112 in the triangle shape. The bottom edge of the connecting plate 113 is kept The locating plates 13 are stable, thereby realizing a sliding state perpendicular to the adjacent locating plates 13, and each individual locating plate 13 is assembled head to tail and slides against each other to form a "mouth" shape, and the size of the "mouth" shape is adjusted by sliding the locating plates 13 against each other. After the size is adjusted, the "mouth" shaped locating plates 13 are fixed in the base 4 through bolts passing through the fixing plates 12. After the pier is positioned, the fixing plates 12 are loosened and the nut in the screw rod 111 is unscrewed again to loosen the compression on the connecting plate 113, so that the supporting structure 112 and the rubber block 115 do not press against the adjacent locating plates 13, and then slide again from the rail groove 14 to move out, thereby realizing the effect of rapid removal and installation and fixing, and preventing the inconvenience of disassembly after the pier positioning is completed.

[0034] Among them, the supporting structure 112 is provided with a fixed block 1121, a bearing block 1122, a force-bearing rod 1123, and a sliding bar 1124. The two bearing blocks 1122 are arranged on the left and right sides of the force-bearing rod 1123, and the bearing block 1122 is fixed inside the fixed block 1121 to support the force-bearing rod 1123. The two sliding bars 1124 are symmetrically distributed on both sides of the fixed block 1121. The fixed block 1121 is limitedly slidable in the rail groove 14 through the sliding bar 1124. The pressure plate 114 is inserted into the fixed block 1121 to press the side of the force-bearing rod 1123, and under the support of the bearing block 1122, the force-bearing rod 1123 is moved and deformed outward, so that the force-bearing rod 1123 and the rubber block 115 are synchronously pressed against the inner wall of the rail groove 14.

[0035] Furthermore, the slide bar 1124 is a rectangular structure, and the slide bar 1124 maintains horizontal movement when sliding in the rail groove 14. When the positioning plate 13 tilts, it drives the fixed block 1121 to rotate. At this time, the left and right sides of the slide bar 1124 press against the inner wall of the rail groove 14 to block it.

[0036] In addition, an opening slightly larger than the shape of the pressure plate 114 is provided on the lower side of the fixed block 1121, and the opening is located to the right of the force-bearing rod 1123. When the pressure plate 114 is inserted into the fixed block 1121 from the opening, it squeezes and drives the force-bearing rod 1123 to rotate around the bearing block 1122, and the pressure plate 114 is inserted to press the force-bearing rod 1123 from the side.

[0037] In the present invention, the level between the support structure 112 and the connecting plate 113 is ensured by the sliding bar 1124. When the connecting plate 113 is squeezed and pressed, the positioning plate 13 is driven to generate a tilting force. The sliding bar 1124 is moved horizontally within the rail groove 14 to prevent the triangle formed by the positioning plate 13 and the connecting plate 113 from rotating, so that the positioning plate 13 keeps sliding in a state perpendicular to the adjacent positioning plate 13.

[0038] Among them, the force-bearing rod 1123 is provided with a plastic ring 231, a connecting rod 232, and a rubber ring 233. The plastic ring 231 is arranged inside the rubber ring 233, and the rubber ring 233 is fitted on the connecting rod 232. When the rubber ring 233 is in a stationary state, the plastic ring 231 and the connecting rod 232 are located on the same central axis. When the pressure plate 114 squeezes the side of the rubber ring 233, the rubber ring 233 is driven and rotated by the pressure plate 114, so that the position where the rubber ring 233 contacts the pressure plate 114 is compressed inwardly, and the plastic ring 231 is offset to one side from the center of the connecting rod 232. At this time, the left side of the rubber ring 233 is thicker than the right side, and then the rubber ring 233 is pressed against the inner wall of the outer rail groove 14 position under the elastic force of the plastic ring 231.

[0039] In the present invention, the rubber ring 233 is squeezed from the side by the pressure plate 114. Since the connecting rod 232 is in a fixed rotating state, the rubber ring 233 can only be squeezed by the pressure plate 114, and drives the connecting rod 232 to rotate in the bearing block 1122. While rotating, the pressure plate 114 enters one side of the rubber ring 233. At this time, the pressure plate 114 completely presses the rubber ring 233, and causes the rubber ring 233 to drive the plastic ring 231 to be compressed outward, so that the thickness of the outer edge is greater than the thickness of the contact side of the pressure plate 114, so that when the fixed block 1121 translates, the position of the rubber ring 233 presses against the inner wall of the position of the rail groove 14, so that the force-bearing rod 1123 and the rubber block 115 synchronously cooperate to fix the positioning plate 13.

[0040] Among them, the guiding structure 2 is provided with a slide groove 21, a first spring 22, a guide plate 23, a buffer structure 24, an elastic plate 25, and a movable plate 26. The first spring 22 is arranged at the lower end of the elastic plate 25 and presses against the side of the guide plate 23 for compression. When the pier moves downward, it presses the surface of the buffer structure 24, and drives the elastic plate 25 to rotate on the side hinge of the movable plate 26, and guides the pier to move downward. When there is an offset force on the pier, the pier contacts the guide plate 23 and slides into the middle of the "mouth" shape on the inner side of the positioning mechanism 1.

[0041] In addition, the elastic plate 25 rotates to guide the pier to pass through and elastically compress the first spring 22, the guide plate 23 is inclined outward by 20°, and the slide groove 21 is set at the upper end of the guide plate 23, the movable plate 26 slides in the slide groove 21, and the movable plate 26 slides to the relative position in the middle of the "mouth" shape.

[0042] Furthermore, the outer side of the elastic plate 25 is in an inclined state, and when the outer side of the elastic plate 25 presses against the supporting block 243 , the trapezoidal plate 242 is just in a vertical state.

[0043] Among them, the buffer structure 24 is provided with a second spring 241, trapezoidal plates 242 and 244. The second spring 241 is arranged on the side of the support block 243 and is fixedly connected to the elastic plate 25. The support block 243 is arranged at the lower end of the trapezoidal plate 242. When the trapezoidal plate 242 is driven by the pier to move downward, the support block 243 pulls the second spring 241 to expand and contract, so that the support block 243 turns to press against the side of the elastic plate 25, and after the trapezoidal plate 242 turns, its surface contacts the outer side of the pier, and presses and guides when the pier moves downward.

[0044] After adjusting the size of the positioning mechanism 1 in the present invention, the movable plate 26 is pushed to slide in the slide groove 21 to ensure that the movable plate 26 on the four guide plates 23 is in the middle relative position of the "mouth" shape, and then the pier column moves downward and contacts the buffer structure 24 when it is installed, and drives the elastic plate 25 to rotate downward with the side hinge of the movable plate 26 under the gravity of the pier column, and makes the elastic plate 25 squeeze the first spring 22 for compression. At this time, the buffer structure 24 is driven by the elastic plate 25 to rotate in an inclined state. The buffer structure 24 in the inclined state blocks the force of the pier column shaking left and right, and under the elastic force of the first spring 22, the buffer structure 24 produces a pressure against the outer side of the pier column, so the trapezoidal plate 242 drives the support block 243 to press against the first spring 22. The second spring 241 is stretched to make the support block 243 slide on the surface of the elastic plate 25, and the support block 243 drives the trapezoidal plate 242 to turn. At this time, the support block 243 is pressed against the side of the elastic plate 25, and the surface of the trapezoidal plate 242 after turning is completely in contact with the outside of the pier, so that the trapezoidal plate 242 blocks the shaking force around the pier, and then guides the pier into the bevel of the lower guide plate 23, and guides the pier into the positioning mechanism 1 and fits with the steel bar 3. In the present invention, the buffer structure 24 in a planar state gradually changes the support mode after being subjected to the shaking of the pier and the downward force of installation, so that the pier eliminates the shaking force and accurately enters the position of the steel bar 3 in the middle position, preventing the pier from shaking during installation and being easily damaged by collision.

[0045] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. The prefabricated pier installation and positioning device for assembled bridges is characterized by: The invention comprises a positioning mechanism (1), a guide structure (2), steel bars (3), and a base (4), wherein the guide structure (2) is arranged at the upper end of the positioning mechanism (1), the steel bars (3) are arranged in the middle of the base (4), and the pier column is vertically inserted into the steel bars (3) under the guidance of the guide structure (2) and is fixed thereto, the positioning mechanism (1) is fixed on the surface of the base (4), the positioning mechanism (1) is slidably matched with adjacent positioning mechanisms (1), and four positioning mechanisms (1) slide and unfold relative to each other; The positioning mechanism (1) is provided with a fixer (11), a fixing plate (12), a positioning plate (13), and a rail groove (14); the rail groove (14) is arranged on the inner side of the positioning plate (13); four positioning plates (13) are provided, and a fixer (11) and a fixing plate (12) are arranged on the outer side of each positioning plate (13); one end of the positioning plate (13) is inserted and slidably into the outer side of the rail groove (14) of the adjacent positioning plate (13); after the four positioning plates (13) are slidably adjusted, the fixer (11) is tightened and pressed against the inner wall of the rail groove (14), so that the positioning plate (13) and the adjacent positioning plates (13) are fixed at right angles, and the four positioning plates (13) form a "mouth" shape and slide relative to each other.

2. The assembly type bridge prefabricated pier installation and positioning device according to claim 1 is characterized in that: The fixer (11) is provided with a screw (111), a support structure (112), a connecting plate (113), a pressure plate (114), and a rubber block (115); the connecting plate (113) is arranged on the outside of the positioning plate (13) at an angle of 28 degrees; the screw (111) is arranged on the outside of the positioning plate (13), and the screw (111) passes through the middle of the connecting plate (113); a nut is arranged on the outside of the screw (111) to rotate and push the connecting plate (113) inwardly, and the connecting plate (113) is pushed inwardly under the support of the positioning plate (13). The connecting plate (113) is elastically bent and drives the rubber block (115) at the outer end to press against the inner wall of the rail groove (14); the pressing plate (114) is arranged on the inner side of the connecting plate (113), and the pressing plate (114) is inserted into the supporting structure (112); when the connecting plate (113) is elastically bent, the pressing plate (114) is translated and squeezed in the supporting structure (112), so that the supporting structure (112) expands and presses against the inner wall of the rail groove (14); the rubber block (115) and the supporting structure (112) press against the positioning plate (13) at two points to form a triangle for fixing.

3. The assembly type bridge prefabricated pier installation and positioning device according to claim 2 is characterized in that: The support structure (112) is provided with a fixed block (1121), a bearing block (1122), a force-bearing rod (1123), and a slide bar (1124). The two bearing blocks (1122) are arranged on the left and right sides of the force-bearing rod (1123), and the bearing block (1122) is fixed inside the fixed block (1121) to support the force-bearing rod (1123). The two slide bars (1124) are symmetrically distributed on both sides of the fixed block (1121). The fixed block (1121) is limitedly slidable in the rail groove (14) through the slide bars (1124). The pressure plate (114) is inserted into the fixed block (1121) to press the side of the force-bearing rod (1123), and under the support of the bearing block (1122), the force-bearing rod (1123) is moved and deformed outward, so that the force-bearing rod (1123) and the rubber block (115) are synchronously pressed against the inner wall of the rail groove (14).

4. The assembly type bridge prefabricated pier installation and positioning device according to claim 3 is characterized in that: An opening slightly larger than the shape of the pressure plate (114) is provided on the lower side of the fixed block (1121), and the opening is located to the right of the force-bearing rod (1123) below. When the pressure plate (114) is inserted into the fixed block (1121) from the opening, the force-bearing rod (1123) is squeezed and driven to rotate around the bearing block (1122), and the pressure plate (114) is inserted to press the force-bearing rod (1123) from the side.

5. The assembly type bridge prefabricated pier installation and positioning device according to claim 3 is characterized in that: The force-bearing rod (1123) is provided with a plastic ring (231), a connecting rod (232), and a rubber ring (233). The plastic ring (231) is arranged inside the rubber ring (233), and the rubber ring (233) is fitted on the connecting rod (232). When the rubber ring (233) is in a stationary state, the plastic ring (231) and the connecting rod (232) are located on the same central axis. When the pressure plate (114) squeezes the side of the rubber ring (233), the rubber ring (233) is driven and rotated by the pressure plate (114), so that the contact position between the rubber ring (233) and the pressure plate (114) is compressed inwardly, and the plastic ring (231) is offset to one side from the center of the connecting rod (232). At this time, the left side of the rubber ring (233) is thicker than the right side, and the rubber ring (233) is pressed against the inner wall of the outer rail groove (14) under the elastic force of the plastic ring (231).

6. The assembly type bridge prefabricated pier installation and positioning device according to claim 1, characterized in that: The guide structure (2) is provided with a slide groove (21), a first spring (22), a guide plate (23), a buffer structure (24), an elastic plate (25), and a movable plate (26). The first spring (22) is arranged at the lower end of the elastic plate (25) and is pressed against the side of the guide plate (23) for compression. When the pier column moves downward, it presses the surface of the buffer structure (24) and drives the elastic plate (25) to hinge and rotate on the side of the movable plate (26) and guide the pier column to move downward. When there is an offset force on the pier column, the pier column contacts the guide plate (23) and slides into the middle of the "mouth" shape inside the positioning mechanism (1).

7. The assembly type bridge prefabricated pier installation and positioning device according to claim 6, characterized in that: The elastic plate (25) rotates to guide the pier column to pass through and elastically compress the first spring (22); the guide plate (23) is inclined outward by 20 degrees, and the slide groove (21) is arranged at the upper end of the guide plate (23); the movable plate (26) slides in the slide groove (21) and slides to a relative position in the middle of the "mouth" shape.

8. The assembly type bridge prefabricated pier installation and positioning device according to claim 6, characterized in that: The buffer structure (24) is provided with a second spring (241), a trapezoidal plate (242), and (244); the second spring (241) is arranged on the side of the support block (243) and is fixedly connected to the elastic plate (25); the support block (243) is arranged at the lower end of the trapezoidal plate (242); when the trapezoidal plate (242) is driven by the pier column to move downward, the support block (243) pulls the second spring (241) to expand and contract, so that the support block (243) turns to press against the side of the elastic plate (25); and after the trapezoidal plate (242) turns, its surface contacts the outer side of the pier column, and presses and guides the pier column when it moves downward.

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