Foundation pile reinforcing device for highway bridge
By designing a foundation pile reinforcement device including support table, foundation pile hole, No. 2 casing, connecting plate, fixing device, auxiliary device and support device, the problem of improper foundation pile reinforcement position in the prior art is solved, and the precise reinforcement and efficient reinforcement efficiency of foundation piles are achieved.
Patent Information
- Application Number
- CN202510143738.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-03-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing foundation pile reinforcement equipment cannot be precisely reinforced based on foundation piles of different lengths and usage scenarios, resulting in improper reinforcement position and may lead to a sharp drop in the load bearing capacity of the foundation pile.
A foundation pile reinforcement device for highway bridges is designed, including a support table, a foundation pile hole, a second casing, a connecting plate, a fixing device, an auxiliary device and a support device. Through the cooperation of the No. 2 casing and the fixing device, the reinforcement position can be adjusted according to the length of the foundation pile body, and the foundation pile body can be further reinforced through auxiliary devices and support devices.
The precise reinforcement of the foundation pile body is achieved, the reinforcement efficiency of the foundation pile is improved, the stable adhesion of the support platform is ensured, slippage and loosening are avoided, and the reliable support of the foundation pile under complex geological conditions is ensured.
Smart Images
Figure CN119686303A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of highway bridge foundation piles, and in particular relates to a highway bridge foundation pile reinforcement device. Background Art
[0002] With the rapid development of the transportation industry, vehicle loads continue to rise, and traffic volume becomes increasingly dense. Many existing highway bridge piles are overloaded and suffer from various diseases. If they are not maintained in time, they are prone to loosening and tilting. In severe cases, they may even lead to the collapse of highway bridges, endangering the safety of passing vehicles. Bridge piles in coastal areas have been eroded by seawater moisture and salt for a long time, and the corrosion rate is faster, which seriously threatens the durability of the piles. Therefore, it is necessary to reinforce the piles.
[0003] Most of the existing reinforcement equipment uses fixed support rods for reinforcement, and the reinforcement device can only reinforce a certain position of the pile. Due to the different lengths of the piles, the locations of the defects are different. Shorter piles may be damaged near the ground due to rain erosion and vehicle load impact; longer piles may crack or corrode due to complex geological conditions and groundwater erosion. Over time, the omitted corrosion problem continues to worsen. Even if the reinforced position is as stable as before, the loss of strength in other parts may cause the bearing capacity of the entire pile to drop sharply. Summary of the invention
[0004] The purpose of the present invention is to provide a foundation pile reinforcement device for a highway bridge. The present invention can realize reinforcement of different positions of the foundation pile body, facilitate accurate reinforcement of the foundation pile body in different usage scenarios, and realize firm reinforcement of the foundation pile body.
[0005] The present invention is realized by the following technical measures: a pile reinforcement device for a highway bridge, comprising a support platform, a pile hole is opened at the center of the support platform, two No. 2 casings are arranged above the pile hole, the inside of the pile hole and the No. 2 casing is used to place the pile body, the outside of the pile body is fixedly connected with a connecting plate, a fixing device and an auxiliary device are arranged above the support platform, a supporting device is arranged below the support platform, and the auxiliary device is located below the auxiliary device; When the foundation pile body is subjected to downward force, the foundation pile body applies pressure to the No. 2 casing and pushes the No. 2 casing to move downward, and the No. 2 casing moves downward to drive the fixing device to work, and the fixing device can adjust the reinforcement position of the foundation pile body according to the length of the foundation pile body; When the fixing device is working, it drives the auxiliary device to work. The operation of the auxiliary device can disperse the pressure of the No. 2 casing, so that the auxiliary device is in close contact with the outer surface of the middle part of the pile body, and the pile body is further reinforced. At the same time, the operation of the fixing device drives the supporting device to work. The supporting device is inserted into the concrete under the supporting platform, so that the supporting platform is firmly attached to the pile body.
[0006] Preferably, two No. 1 sleeves are fixedly connected to the upper end of the connecting plate, and the two No. 1 sleeves and the two No. 2 sleeves are fixedly connected by bolts. The two No. 1 sleeves are fixed by bolts, and the No. 1 sleeve drives the connecting plate to be fixedly connected to the pile body.
[0007] Preferably, the fixing device includes four groups of fixing columns evenly fixed on the outer wall of the No. 2 casing, the four groups of fixing columns are rotatably connected with support rods, the inner circumferential array of the support platform is provided with four groups of sliding grooves, the insides of the four groups of sliding grooves are all slidably connected with sliders, the end of the support rod away from the fixing column is rotatably connected to the upper side of the slider, the No. 2 casing moves downward to drive the support rod to rotate, the support rod rotates and drives the slider to slide inside the sliding groove, and reinforcement of different positions can be achieved according to the different lengths of the foundation pile body.
[0008] Preferably, the auxiliary device includes four groups of movable blocks slidably connected inside the support platform, the four groups of movable blocks are arranged in a circular array, the upper side of the movable block is rotatably connected with an auxiliary support rod, the other end of the auxiliary support rod is rotatably connected to one side of the support rod, when the support rod rotates, the auxiliary support rod is driven to rotate, and the rotation of the auxiliary support rod drives the movable block to move toward the direction of the pile body.
[0009] Preferably, four groups of moving rods are slidably connected inside the support platform, the outer wall of the moving rod is fixedly connected to one end of the movable block, the inner wall of the moving rod is fixedly connected to a plurality of buffer springs, the other end of the buffer spring is fixedly connected to a fixed plate, and the inner wall of the fixed plate is flush with the inner wall of the pile hole, when the movable block moves, it drives the moving rod to move, and the moving rod drives the buffer spring to be in close contact with the outer surface of the pile body, so as to further reinforce the pile body.
[0010] Preferably, the supporting device includes four groups of pile plugs fixedly connected to the lower side of the supporting platform, each group of the pile plugs is provided with two, multiple through grooves are opened on both sides of the two pile plugs, and the positions of the multiple through grooves are staggered, and the interiors of the through grooves are slidably connected with reinforcement rods, and the multiple pile plugs can play a role of multi-point positioning.
[0011] Preferably, a movable rod is provided inside the two pile plugs, and a plurality of push rods are rotatably connected inside the movable rod. The other end of the push rod is rotatably connected to one end of a reinforcement rod. The movable rod moves downward to drive the push rod to rotate, and the rotation of the push rod drives the reinforcement rod to move, so that one end of the reinforcement rod moves out of the outside of the pile plug, and the friction between the support platform and the surrounding concrete is increased by the reinforcement rod, so that the support platform is firmly attached to the pile body.
[0012] Preferably, the upper end of the movable rod extends to the inside of the slide groove, a return spring is connected between the lower end of the movable rod and the bottom of the inner cavity of the pile plug, and an extrusion plate is fixedly connected to the lower side of the movable rod. The distance between the two movable rods is smaller than the length of the extrusion plate. When the movable rod moves, it drives the extrusion plate to move, and the movement of the extrusion plate pushes the movable rod to move downward.
[0013] Preferably, four groups of movable plates are arranged inside the No. 2 casing, the outer walls of the movable plates are fixedly connected with a plurality of compression springs, the other ends of the plurality of compression springs are fixedly connected with the inner wall of the No. 2 casing, and the upper and lower sides of the outer walls of the movable plates are slidably connected with the upper and lower ends of the No. 2 casing.
[0014] Beneficial effects of the present invention: In the present invention, when the pile body is subjected to downward force, the pile body drives the support rod to rotate, so that the No. 2 casing can be reinforced at different positions of the pile body according to the different lengths of the pile body, which is convenient for accurately reinforcing the piles in different usage scenarios. When the support rod rotates, it drives the auxiliary support rod to rotate, and the rotation of the auxiliary support rod drives the fixed plate to further reinforce the middle end of the pile body, thereby further improving the reinforcement efficiency of the pile body. The multiple pile plugs can play a role of multi-point positioning. At the same time, the rotation of the support rod drives one end of the multiple reinforcement rods to move out of the outside of the pile plug, thereby increasing the friction between the support platform and the surrounding concrete, so that the support platform is firmly attached to the pile body, avoiding slippage and loosening of the support platform, ensuring that the support platform can provide reliable support for the pile body under complex geological conditions, and ensuring that the support platform continues to perform its effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 It is a structural schematic diagram of the No. 2 casing in the present invention; Figure 4 It is a schematic diagram of the structure of the fixing device and the auxiliary device in the present invention; Figure 5 It is a schematic diagram of the structure of the fixing device in the present invention; Figure 6It is a structural schematic diagram of the movable plate in the present invention; Figure 7 It is a structural schematic diagram of the auxiliary device in the present invention; Figure 8 It is a structural schematic diagram of the supporting device in the present invention; Fig. 9 It is a schematic diagram of the partial structure of the pile plug in the present invention.
[0016] In the figure: 1. Support platform; 11. Pile hole; 12. Pile body; 13. No. 1 casing; 131. Bolt; 132. Connecting plate; 14. No. 2 casing; 2. Fixing device; 21. Fixing column; 22. Support rod; 23. Sliding block; 24. Sliding groove; 25. Moving plate; 26. Compression spring; 3. Auxiliary device; 31. Movable block; 32. Auxiliary support rod; 33. Moving rod; 34. Buffer spring; 35. Fixed plate; 4. Support device; 41. Pile plug; 42. Movable rod; 43. Push rod; 44. Reinforcement rod; 45. Return spring; 46. Extrusion plate. DETAILED DESCRIPTION
[0017] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods and in conjunction with the accompanying drawings.
[0018] In the description of the present invention, it is necessary to understand that the terms "center", "length", "up", "down", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0019] like Figure 1-Figure 2 As shown, a pile reinforcement device for a highway bridge includes a support platform 1, a pile hole 11 is opened at the center of the support platform 1, two No. 2 casings 14 are arranged above the pile hole 11, the interior of the pile hole 11 and the No. 2 casing 14 are used to place the pile body 12, a fixing device 2 and an auxiliary device 3 are arranged above the support platform 1, a supporting device 4 is arranged below the support platform 1, and the auxiliary device 3 is located below the auxiliary device 3.
[0020] When the pile body 12 is subjected to downward force, the pile body 12 applies pressure to the No. 2 casing 14 through the connecting plate 132 and pushes the No. 2 casing 14 downward. The downward movement of the No. 2 casing 14 drives the fixing device 2 to work. The fixing device 2 can adjust the reinforcement position of the pile body 12 according to the different lengths of the pile body 12.
[0021] When the fixing device 2 is working, it drives the auxiliary device 3 to work. The auxiliary device 3 can disperse the pressure of the No. 2 casing 14, so that the auxiliary device 3 is in close contact with the outer surface of the middle part of the pile body 12 (somewhere between the two ends), and the pile body 12 is further reinforced. At the same time, the fixing device 2 drives the supporting device 4 to work. The supporting device 4 is inserted into the concrete under the support platform 1, so that the support platform 1 is firmly attached to the pile body 12.
[0022] like Figure 1-Figure 2 as well as Figure 6 As shown, the outside of the pile body 12 is fixedly connected with a connecting plate 132, and the upper end of the connecting plate 132 is fixedly connected with two No. 1 sleeves 13. The two No. 1 sleeves 13 and the two sides of the No. 2 sleeve 14 are fixedly connected by bolts 131. The two No. 1 sleeves 13 are fixed by the bolts 131, and the support platform 1 is placed on the ground, and the pile body 12 is inserted from the inside of the pile hole 11. Then, the two No. 2 sleeves 14 are fixedly connected by the bolts 131, so that the No. 2 sleeves 14 support the pile body 12.
[0023] The locations where the pile bodies 12 of different lengths are damaged vary. For example, highway bridges generally use shorter pile bodies 12, and the part of the pile body 12 close to the ground is easily damaged by rain erosion. Bridge piles in coastal areas generally use longer pile bodies 12, and the part of the pile body 12 located deep underground is prone to damage due to complex geological conditions and long-term erosion by seawater moisture and salt. Therefore, the reinforcement position needs to be determined based on the length of the pile body 12 and the usage scenario. Figure 3-Figure 5 As shown, the fixing device 2 includes four groups of fixing columns 21 uniformly fixed on the outer wall of the No. 2 casing 14, and the four groups of fixing columns 21 are rotatably connected with support rods 22. The inner circumferential array of the support platform 1 is provided with four groups of slide grooves 24, and the insides of the four groups of slide grooves 24 are all slidably connected with sliders 23, and the end of the support rod 22 away from the fixing column 21 is rotatably connected with the upper side of the slider 23. When the foundation pile body 12 is subjected to a downward force, the foundation pile body 12 drives the No. 1 casing 13 and the connecting plate 132 to move downward, and the connecting plate 132 applies pressure to the No. 2 casing 14 and pushes the No. 2 casing 14 to move downward, and the No. 2 casing 14 moves downward to drive the fixing column 21 to move, and the movement of the fixing column 21 drives the support rod 22 to rotate, and the support rod 22 rotates and drives the slider 23 to slide inside the slide groove 24, and according to the different lengths of the foundation pile body 12, different positions of the foundation pile body 12 can be reinforced.
[0024] Four groups of moving plates 25 are arranged inside the No. 2 casing 14. The outer wall of the moving plates 25 is fixedly connected with a plurality of compression springs 26. The other ends of the plurality of compression springs 26 are fixedly connected with the inner wall of the No. 2 casing 14. The upper and lower sides of the outer wall of the moving plates 25 are slidably connected with the upper and lower ends of the No. 2 casing 14. The pile body 12 pushes the moving plates 25 to move outward and squeezes the compression springs 26. Under the reaction force of the compression springs 26, the moving plates 25 are always in contact with the outer wall of the pile body 12, which is suitable for different types of pile bodies 12. The two No. 1 casings 13 are fixedly connected to the pile body 12 by bolts 131. The reinforcement position of the No. 1 casing 13 on the pile body 12 can be determined according to the length of the pile body 12.
[0025] like Figure 4 and Figure 7 As shown, the auxiliary device 3 includes four groups of movable blocks 31 slidably connected to the inside of the support platform 1, the four groups of movable blocks 31 are arranged in a circumferential array, the upper side of the movable block 31 is rotatably connected to an auxiliary support rod 32, the other end of the auxiliary support rod 32 is rotatably connected to one side of the support rod 22, and the inside of the support platform 1 is slidably connected to four groups of moving rods 33, the outer wall of the moving rod 33 is fixedly connected to one end of the movable block 31, the inner wall of the moving rod 33 is fixedly connected to a plurality of buffer springs 34, and the other end of the buffer spring 34 is fixedly connected to a fixed When the slider 23 is in the inner limit position, the inner wall of the fixed plate 35 is flush with the inner wall of the pile hole 11, and the support rod 22 rotates to drive the auxiliary support rod 32 to rotate, and the rotation of the auxiliary support rod 32 drives the movable block 31 to move toward the pile body 12. When the movable block 31 moves, it drives the moving rod 33 to move, and the moving rod 33 drives the fixed plate 35 to be in close contact with the outer surface of the pile body 12, so as to further reinforce the pile body 12, thereby further improving the reinforcement efficiency of the pile body 12.
[0026] like Figure 1-Figure 2 as well as Figure 7 As shown, the supporting device 4 includes four groups of pile plugs 41 fixedly connected to the lower side of the supporting platform 1, and each group of pile plugs 41 is provided with two. Both sides of the two pile plugs 41 are provided with multiple through grooves, and the positions of the multiple through grooves are staggered. The insides of the through grooves are slidably connected with reinforcement rods 44. When the supporting platform 1 is placed on the ground, the multiple pile plugs 41 are inserted into the concrete. The multiple pile plugs 41 can play a role of multi-point positioning, forming a stable system, which can increase the stability of the concrete around the supporting platform 1 and the pile body 12, and ensure that the supporting platform 1 can provide reliable support for the pile body 12 under complex geological conditions.
[0027] like Figure 8 and Fig. 9As shown, the interior of the two pile plugs 41 is provided with a movable rod 42, the upper end of the movable rod 42 extends to the interior of the slide slot 24, and a return spring 45 is connected between the lower end of the movable rod 42 and the bottom of the inner cavity of the pile plug 41. The lower side of the moving rod 33 is fixedly connected with an extrusion plate 46, and the distance between the two movable rods 42 is less than the length of the extrusion plate 46. When the moving rod 33 moves, the extrusion plate 46 moves, and the extrusion plate 46 moves to push the movable rod 42 downward. The interior of the movable rod 42 is rotatably connected with a plurality of The push rod 43, the other end of the push rod 43 is rotatably connected to one end of the reinforcement rod 44, the movable rod 42 moves downward to drive the push rod 43 to rotate, the push rod 43 rotates to push the reinforcement rod 44 to move, so that one end of the reinforcement rod 44 moves out of the outside of the pile plug 41, and the friction between the support platform 1 and the surrounding concrete is increased by the reinforcement rod 44, so that the support platform 1 is firmly attached to the pile body 12, preventing the support platform 1 from slipping and loosening, ensuring that the support platform 1 continues to play a role, thereby maintaining the stability of the pile body 12.
[0028] When the pile reinforcement device for highway bridge of the present invention is used, the support platform 1 is placed on the ground, the pile body 12 is inserted from the inside of the pile hole 11, and then the bolt 131 is rotated to fix the two No. 2 sleeves 14 in connection, so that the No. 2 sleeve 14 supports the outside of the pile body 12. When the pile body 12 is subjected to downward force, the pile body 12 drives the No. 1 sleeve 13 and the connecting plate 132 to move downward, and the connecting plate 132 applies pressure to the No. 2 sleeve 14 and pushes the No. 2 sleeve 14 to move downward. The downward movement of the No. 2 sleeve 14 drives the fixed column 21 to move, and the movement of the fixed column 21 drives the support rod 22 to rotate. The support rod 22 rotates and drives the slider 23 to slide inside the slide groove 24. According to the different lengths of the pile body 12, different positions of the pile body 12 can be reinforced, which is convenient for accurate reinforcement of different scenes.
[0029] When the support rod 22 rotates, the auxiliary support rod 32 is driven to rotate. The rotation of the auxiliary support rod 32 drives the movable block 31 to move toward the direction of the pile body 12. When the movable block 31 moves, it drives the moving rod 33 to move. The moving rod 33 drives the fixing plate 35 to be in close contact with the outer surface of the pile body 12, further reinforcing the pile body 12, thereby further improving the reinforcement efficiency of the pile body 12.
[0030] When the support platform 1 is placed on the ground, a plurality of pile plugs 41 are inserted into the concrete. The plurality of pile plugs 41 can play a role of multi-point positioning to form a stable system, which can increase the stability of the concrete around the support platform 1 and the pile body 12, and ensure that the support platform 1 can provide reliable support for the pile body 12 under complex geological conditions. When the movable rod 33 moves, it drives the extrusion plate 46 to move, and the movement of the extrusion plate 46 pushes the movable rod 42 to move downward. The downward movement of the movable rod 42 drives the push rod 43 to rotate, and the rotation of the push rod 43 pushes the reinforcement rod 44 to move, so that one end of the reinforcement rod 44 moves out of the outside of the pile plug 41, and the friction between the support platform 1 and the surrounding concrete is increased by the reinforcement rod 44, so that the support platform 1 is firmly attached to the pile body 12, and the support platform 1 is prevented from slipping and loosening, and the support platform 1 is guaranteed to continue to perform its effectiveness, thereby maintaining the stability of the pile body 12.
[0031] Technical features not described in the present invention can be implemented by existing technologies and will not be described in detail here. The present invention is not limited to the above specific embodiments, and changes, modifications, additions or substitutions made by ordinary technicians in the field within the essential scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. A pile reinforcement device for a highway bridge, comprising a support platform (1), characterized in that: A foundation pile hole (11) is provided at the center of the support platform (1), two No. 2 sleeves (14) are provided above the foundation pile hole (11), the interior of the foundation pile hole (11) and the No. 2 sleeves (14) are used to place a foundation pile body (12), the exterior of the foundation pile body (12) is fixedly connected with a connecting plate (132), a fixing device (2) and an auxiliary device (3) are provided above the support platform (1), a supporting device (4) is provided below the support platform (1), and the auxiliary device (3) is located below the auxiliary device (3); When the foundation pile body (12) is subjected to a downward force, the foundation pile body (12) applies pressure to the second casing (14) and pushes the second casing (14) to move downward, and the second casing (14) moves downward to drive the fixing device (2) to work, and the fixing device (2) can adjust the reinforcement position of the foundation pile body (12) according to the different lengths of the foundation pile body (12); When the fixing device (2) is in operation, it drives the auxiliary device (3) to work. The auxiliary device (3) can disperse the pressure of the No. 2 casing (14) when in operation, so that the auxiliary device (3) is in close contact with the outer surface of the middle part of the pile body (12), thereby further reinforcing the pile body (12). At the same time, when the fixing device (2) is in operation, it drives the supporting device (4) to work. The supporting device (4) is inserted into the concrete below the support platform (1), so that the support platform (1) is firmly attached to the pile body (12).
2. The pile reinforcement device for highway bridge according to claim 1 is characterized in that: The upper end of the connecting plate (132) is fixedly connected to two No. 1 sleeves (13), and the two No. 1 sleeves (13) and the two No. 2 sleeves (14) are fixedly connected by bolts (131). The two No. 1 sleeves (13) are fixed by the bolts (131), and the No. 1 sleeves (13) drive the connecting plate (132) to be fixedly connected to the pile body (12).
3. The pile reinforcement device for highway bridge according to claim 2 is characterized in that: The fixing device (2) comprises four groups of fixing columns (21) uniformly fixed on the outer wall of the second casing (14), the four groups of fixing columns (21) are rotatably connected to support rods (22), the inner circumferential array of the support platform (1) is provided with four groups of slide grooves (24), the inside of the four groups of slide grooves (24) are all slidably connected to sliders (23), the end of the support rod (22) away from the fixing column (21) is rotatably connected to the upper side of the slider (23), the second casing (14) moves downward to drive the support rod (22) to rotate, the support rod (22) rotates and drives the slider (23) to slide inside the slide groove (24), and reinforcement of different positions can be achieved according to the different lengths of the pile body (12).
4. The highway bridge foundation pile reinforcement device according to claim 3 is characterized in that: The auxiliary device (3) comprises four groups of movable blocks (31) slidably connected inside the support platform (1), the four groups of movable blocks (31) being arranged in a circular array, the upper side of the movable block (31) being rotatably connected to an auxiliary support rod (32), the other end of the auxiliary support rod (32) being rotatably connected to one side of the support rod (22), the auxiliary support rod (32) being driven to rotate when the support rod (22) rotates, and the rotation of the auxiliary support rod (32) drives the movable block (31) to move in the direction of the pile body (12).
5. The highway bridge foundation pile reinforcement device according to claim 4, characterized in that: Four groups of moving rods (33) are slidably connected inside the support platform (1); the outer wall of the moving rod (33) is fixedly connected to one end of the movable block (31); the inner wall of the moving rod (33) is fixedly connected to a plurality of buffer springs (34); the other end of the buffer spring (34) is fixedly connected to a fixed plate (35); and the inner wall of the fixed plate (35) is flush with the inner wall of the pile hole (11); when the movable block (31) moves, the moving rod (33) is driven to move; the moving rod (33) drives the buffer spring (34) to be in close contact with the outer surface of the pile body (12), thereby further reinforcing the pile body (12).
6. The highway bridge foundation pile reinforcement device according to claim 5, characterized in that: The support device (4) comprises four groups of pile plugs (41) fixedly connected to the lower side of the support platform (1), each group of the pile plugs (41) being provided with two, a plurality of through slots being provided on both sides of the two pile plugs (41), and the positions of the plurality of through slots being arranged in a staggered manner, and the interiors of the through slots being slidably connected with reinforcement rods (44), and the plurality of pile plugs (41) being provided can play a role of multi-point positioning.
7. The pile reinforcement device for highway bridge according to claim 6, characterized in that: A movable rod (42) is provided inside the two pile plugs (41), and a plurality of push rods (43) are rotatably connected inside the movable rod (42). The other end of the push rod (43) is rotatably connected to one end of a reinforcement rod (44). The movable rod (42) moves downward to drive the push rod (43) to rotate, and the push rod (43) rotates to push the reinforcement rod (44) to move, so that one end of the reinforcement rod (44) moves out of the pile plug (41). The friction between the support platform (1) and the surrounding concrete is increased by the reinforcement rod (44), so that the support platform (1) is firmly attached to the pile body (12).
8. The highway bridge foundation pile reinforcement device according to claim 7, characterized in that: The upper end of the movable rod (42) extends to the inside of the slide groove (24), and a return spring (45) is connected between the lower end of the movable rod (42) and the bottom of the inner cavity of the pile plug (41). The lower side of the movable rod (33) is fixedly connected to an extrusion plate (46), and the distance between the two movable rods (42) is less than the length of the extrusion plate (46). When the movable rod (33) moves, it drives the extrusion plate (46) to move, and the movement of the extrusion plate (46) pushes the movable rod (42) to move downward.
9. The highway bridge foundation pile reinforcement device according to any one of claims 1 to 8, characterized in that: Four groups of movable plates (25) are arranged inside the No. 2 sleeve (14); the outer wall of the movable plate (25) is fixedly connected with a plurality of compression springs (26); the other ends of the plurality of compression springs (26) are fixedly connected with the inner wall of the No. 2 sleeve (14); and the upper and lower sides of the outer wall of the movable plate (25) are slidably connected with the upper and lower ends of the No. 2 sleeve (14).