Pile foundation fixing device for constructional engineering

Abstract

The invention belongs to the technical field of constructional engineering equipment, and particularly relates to a constructional engineering pile foundation fixing device which comprises a first base, a second base and a limiting plate, an abutting mechanism is installed between the first base and a pile foundation, a wedge-shaped block is slidably connected to the inner side of a fixing cylinder, and a slope is formed in the tail end of the wedge-shaped block; a position adjusting mechanism is installed outside the wedge-shaped block, and a positioning mechanism is installed on the upper side of the fixing cylinder. The inner side of the clamping groove is slidably connected with a translation table, and a supporting mechanism is installed between the limiting plate and the translation table. The laser designator is matched with the adjustable wedge block to accurately position the base frame, so that the base frame automatically surrounds the geometric center of the pile foundation, meanwhile, the design of double limiting plates of toothed plate meshing mechanical locking and vertical staggered layout is adopted, a crossed hoop type reinforcing structure is formed, and the lateral constraining force and the overall stability of the pile foundation are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering equipment, and in particular to a pile foundation fixing device for construction engineering. Background Art

[0002] In the construction of pile foundations in building projects, temporary fixing devices are often required to ensure the verticality and position accuracy of the pile body. Traditional fixing methods mostly rely on manual adjustment of support frames or templates for positioning, which has two major defects: first, the center alignment of the base frame and the pile foundation relies on experience, which can easily cause the overall offset of the frame due to visual deviation, affecting the installation accuracy of the subsequent support mechanism; second, the existing clamp-type limiting structure mostly uses one-way locking with bolts, which has weak anti-lateral displacement ability, especially in soft soil or vibration conditions, it is easy to loosen, and there is a risk of pile displacement or even overturning.

[0003] The existing technology makes it difficult to achieve rapid and accurate centering installation of the base frame, and the limiting structure has insufficient fastening force and poor stability, which cannot effectively constrain the multi-dimensional displacement of the pile foundation. At the same time, the traditional device lacks a modular adjustment mechanism, the installation efficiency is low, and it is difficult to adapt to the reliability requirements of pile foundation reinforcement in complex construction environments. Therefore, a pile foundation fixing device for construction engineering is proposed here. Summary of the Invention

[0004] In order to solve the above problems, the present invention proposes a pile foundation fixing device for construction engineering, which more accurately solves the problems raised in the above background technology.

[0005] The present invention is achieved through the following technical solutions: The present invention proposes a pile foundation fixing device for construction engineering, comprising a first base, a second base and a limiting plate, the number of the second bases being three groups, and the overall structure of the first base and the three groups of the second bases are the same and are symmetrically arranged around the pile foundation, an abutment mechanism is installed between the first base and the pile foundation, the first base and the three groups of the second bases are installed with a plug-in mechanism, both sides of the first base and the three groups of the second bases are fixedly connected with a fixing cylinder, the inner side of the fixing cylinder is slidably connected with a wedge block, the end of the wedge block is provided with an inclined surface, and the inclined surfaces of the multiple groups of the wedge blocks are in contact with each other, and one of the first bases is fixed with a fixing cylinder. The outside of the side-mounted wedge block is provided with a position adjustment mechanism, and the upper side of the fixed cylinder is provided with a positioning mechanism; the outside of the first base and the three groups of the second bases are provided with a slot, and the inner side of the slot is slidably connected to a translation platform, and the number of the limit plates is four groups and they rest against the four sides of the pile foundation. The two groups of limit plates located on the opposite sides of the pile foundation are at the same height, and there is a height difference between them and the other two groups of limit plates. A supporting mechanism is installed between the limit plate and the translation platform, and the two sides of the limit plate on one side are fixedly connected to the first mounting seat, and the two sides of the limit plate on the opposite side are fixedly connected to the second mounting seat.

[0006] Preferably, the abutting mechanism includes a fixing rod and a positioning plate, the fixing rod is fixedly connected to the outside of the first base, the positioning plate is fixedly connected to the end of the fixing rod, and the positioning plate is in contact with one side of the pile foundation.

[0007] Preferably, the plug-in mechanism includes a fixing plate and an anchor rod, the fixing plate is fixedly connected to both sides of the first base and three groups of the second bases, the anchor rod is slidably connected to the outside of the fixing plate, and the outside of the anchor rod is fixedly connected with a spiral strip structure.

[0008] Preferably, the position adjustment mechanism includes a slot, a vertical plate and a laser indicator, the slot is opened on the upper side of the wedge block, the vertical plate is inserted into the inner side of the slot, the laser indicator is fixedly connected to the outside of the vertical plate, and the laser emission direction of the laser indicator coincides with the inclined direction of the outside of the wedge block, and the outside of the wedge block is fixedly connected with a scale.

[0009] Preferably, the positioning mechanism includes a fastening bolt, a back plate and a fastening nut, the fastening bolt is threadedly connected to the upper side of the fixing cylinder, the back plate is fixedly connected to the bottom of the fastening bolt, and the back plate abuts against the upper side of the wedge block, the external thread of the fastening bolt is connected to the fastening nut, and the fastening nut abuts against the upper side of the fixing cylinder.

[0010] Preferably, the supporting mechanism includes connecting members and diagonal support rods, the connecting members are fixedly connected to the exterior of the translation platform and the limiting plate, and the diagonal support rods are rotatably connected between the two groups of the connecting members.

[0011] Preferably, a reinforcement mechanism is installed between the first mounting seat and the second mounting seat; the reinforcement mechanism includes a slide groove, a slider, a first connecting plate, a second connecting plate, a tooth plate, a drive motor and a screw rod, the slide groove is opened on the inner side of the first mounting seat and the second mounting seat, and the slider is limitedly slidably connected to the inner side of the slide groove.

[0012] Preferably, the outside of the slider located on the outside of the first mounting seat is fixedly connected to a first connecting plate, and the first connecting plate is abutted against the side of the pile foundation, and the outside of the slider located on the outside of the second mounting seat is fixedly connected to a second connecting plate, and the first connecting plate and the second connecting plate are fixedly connected to the side close to each other, and the two groups of tooth plates are meshed with each other.

[0013] Preferably, the outside of the second mounting seat is fixedly connected to a drive motor, one side of the drive motor is fixedly connected to a screw rod, and the screw rod is rotatably connected to the inner side of the slide groove, and the screw rod is engaged with the slider located inside the second mounting seat.

[0014] Preferably, a locking mechanism is installed on the inner side of the card slot; the locking mechanism includes a screw, a positioning block and a positioning nut, the screw is threadedly connected to the outside of the first base and the three groups of second bases, the positioning block is fixedly connected to the end of the screw, and the positioning block abuts against one side of the translation stage, the positioning nut is threadedly connected to the outside of the screw, and the positioning nut abuts against the outside of the first base and the three groups of second bases.

[0015] Compared with the prior art, the present invention provides a pile foundation fixing device for construction engineering, which has the following beneficial effects: 1. This pile foundation fixture for construction projects uses a design that combines laser guidance with wedge-shaped block adjustments to automatically align the base frame around the pile foundation, significantly improving installation accuracy. Operators only need to adjust the wedge block position according to laser guidance to ensure that each base component is precisely arranged around the pile foundation. This avoids the potential deviation caused by traditional manual visual positioning, provides a reliable benchmark for subsequent construction, and significantly reduces the risk of rework.

[0016] 2. The pile foundation fixing device used in this construction project adopts a dual limiting structure with tooth plate engagement and staggered arrangement, which enhances the restraint effect of the pile foundation. The upper and lower staggered limiting plates form a cross-hoop effect, which, combined with the mechanical self-locking force generated by the tooth plate engagement, effectively resists the lateral displacement and vibration of the pile foundation during construction, thereby improving the overall stability. It is especially suitable for reinforcement needs under soft soil foundations or dynamic load conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A magnified view of the structure at point A; Figure 3 It is a second overall structural schematic diagram of the present invention; Figure 4 for Figure 3 A magnified view of the structure at B in the middle; Figure 5 This is a third overall structural diagram of the present invention; Figure 6 for Figure 5 A magnified view of the structure at C in the middle; Figure 7 This is a fourth overall structural diagram of the present invention; Figure 8 for Figure 7 A magnified view of the structure at D in the middle; Figure 9 This is a fifth overall structural diagram of the present invention; Figure 10 for Figure 9 A magnified view of the structure at E in the middle; Figure 11 for Figure 3 Enlarged view of the structure at F in the middle.

[0018] In the figure: 1. First base; 2. Second base; 3. Fixing rod; 4. Positioning plate; 5. Fixing plate; 6. Anchor rod; 7. Fixing cylinder; 8. Wedge block; 9. Slot; 10. Vertical plate; 11. Laser pointer; 12. Fastening bolt; 13. Abutment plate; 14. Fastening nut; 15. Scale; 16. Slot; 17. Translation stage; 18. Limiting plate; 19. Connecting piece; 20. Diagonal support rod; 21. First mounting seat; 22. Second mounting seat; 23. Slide groove; 24. Slider; 25. First connecting plate; 26. Second connecting plate; 27. Tooth plate; 28. Drive motor; 29. ​​Screw; 30. Screw; 31. Positioning block; 32. Positioning nut. DETAILED DESCRIPTION

[0019] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings. Example 1

[0020] like Figures 1-6 As shown, an embodiment of the present invention proposes a pile foundation fixing device for construction engineering, comprising a first base 1, a second base 2 and a limit plate 18. The number of the second bases 2 is three groups, and the first base 1 and the three groups of second bases 2 have the same overall structure and are symmetrically arranged around the pile foundation. The first base 1 and the three groups of second bases 2 constitute a basic support frame, and the symmetrical arrangement design ensures balanced force. A supporting mechanism is installed between the first base 1 and the pile foundation, and the supporting mechanism includes a fixing rod 3 and a positioning plate 4. The fixing rod 3 is fixedly connected to the outside of the first base 1, and the positioning plate 4 is fixedly connected to the end of the fixing rod 3, and the positioning plate 4 is in contact with one side of the pile foundation. The supporting mechanism composed of the fixing rod 3 and the positioning plate 4 provides an initial positioning reference for the entire device, and the close contact between the positioning plate 4 and the side of the pile foundation ensures the accuracy of the initial positioning.

[0021] like Figure 2 As shown, the first base 1 and the three groups of second bases 2 are installed with a plug-in mechanism, which includes a fixing plate 5 and an anchor rod 6. The fixing plate 5 is fixedly connected to both sides of the first base 1 and the three groups of second bases 2. The anchor rod 6 is slidably connected to the outside of the fixing plate 5, and the outside of the anchor rod 6 is fixedly connected with a spiral strip structure. The spiral strip structure on the outside of the anchor rod 6 enhances the bite effect with the ground, which can effectively prevent the base from displacement during construction.

[0022] like Figure 3 as well as Figure 4 As shown, both sides of the first base 1 and the three groups of second bases 2 are fixedly connected with fixed cylinders 7, and the inner side of the fixed cylinders 7 is slidably connected with wedge blocks 8. The ends of the wedge blocks 8 are provided with inclined surfaces, and the inclined surfaces of the multiple groups of wedge blocks 8 are in contact with each other. The fixed cylinders 7 serve as the installation base for the wedge blocks 8. Its internal sliding connection design allows the wedge blocks 8 to be precisely adjusted in position. A position adjustment mechanism is installed on the outside of the wedge block 8 installed on one side of the first base 1. The position adjustment mechanism includes a slot 9, a vertical plate 10, and a laser pointer 11. The slot 9 is provided on the upper side of the wedge block 8, and the vertical plate 10 is inserted into the inner side of the slot 9. The laser pointer 11 is fixedly connected to the outside of the vertical plate 10, and the laser emission direction of the laser pointer 11 coincides with the direction of the inclined surface on the outside of the wedge block 8. The use of the laser pointer 11 in conjunction with the wedge block 8 realizes the precise positioning function of the device. A scale 15 is fixedly connected to the outside of the wedge block 8 , and the scale 15 provides an intuitive length measurement reference, which is convenient for the operator to accurately control the extension amount of each wedge block 8 .

[0023] like Figure 5 as well as Figure 6As shown, a positioning mechanism is installed on the upper side of the fixing cylinder 7, and the positioning mechanism includes a fastening bolt 12, a back plate 13 and a fastening nut 14. The fastening bolt 12 is threadedly connected to the upper side of the fixing cylinder 7, and the back plate 13 is fixedly connected to the bottom of the fastening bolt 12, and the back plate 13 abuts against the upper side of the wedge block 8. The external thread of the fastening bolt 12 is connected to the fastening nut 14, and the fastening nut 14 abuts against the upper side of the fixing cylinder 7. The coordinated use of the fastening bolt 12 and the fastening nut 14 ensures the reliable fixation of the position of the wedge block 8.

[0024] In this embodiment, the operator first takes out the first base 1 and places its external positioning plate 4 tightly against one of the side surfaces of the pile foundation. Then, the anchor rod 6 is driven into the ground to preliminarily fix the first base 1. Then, the vertical plate 10 is inserted into the slot 9 above the wedge block 8 in the corresponding fixing tube 7 of the first base 1. The laser pointer 11 is started to emit laser light. The direction of the laser beam coincides with the direction of the inclined surface of the end of the wedge block 8. By sliding the position of the wedge block 8 in the fixing tube 7, the laser spot is moved on the outer surface of the pile foundation. When the laser spot falls on the angular edge of the pile foundation, the sliding of the wedge block 8 is stopped. At this time, the extension line of the inclined surface of the wedge block 8 precisely intersects with the angular point of the pile foundation. Then, the fastening bolt 12 above the fixing tube 7 is rotated. The support plate 13 presses the wedge block 8 downward, and then tightens the fastening nut 14 to lock the bolt position, thereby fixing the wedge block 8. The extension length data at this moment is read through the external scale 15 of the wedge block 8, and based on this data, the extension lengths of the wedge blocks 8 in the corresponding fixing cylinders 7 of the other three groups of second bases 2 are adjusted to ensure that the extension lengths of all wedge blocks 8 are consistent. Subsequently, the three groups of second bases 2 are placed around the pile foundation, and the inclined surfaces of their respective wedge blocks 8 are aligned with the inclined surfaces of the positioned wedge blocks 8 on the first base 1. This process ensures that the first base 1 and the three groups of second bases 2 together form a square frame that precisely surrounds the geometric center of the pile foundation, laying the foundation for the subsequent installation of the support mechanism and ensuring the uniformity and stability of the support of the entire base frame. Example 2

[0025] like Figures 1-11 As shown, based on the first embodiment, the first base 1 and the three sets of second bases 2 are each provided with a slot 16 on the outside. A translation platform 17 is slidably connected to the inner side of the slot 16, providing a stable sliding track for the translation platform 17. There are four sets of limit plates 18, which abut against the four sides of the pile foundation. The two sets of limit plates 18 on opposite sides of the pile foundation are at the same height, and there is a height difference between them and the other two sets of limit plates 18. This staggered arrangement forms a cross-hoop reinforcement structure.

[0026] like Figure 11As shown, a support mechanism is installed between the limit plate 18 and the translation platform 17, and the support mechanism includes a connecting member 19 and a diagonal support rod 20. The connecting members 19 are fixedly connected to the outside of the translation platform 17 and the limit plate 18, and the diagonal support rod 20 is rotatably connected between the two groups of connecting members 19. The diagonal support rod 20 can automatically adjust the angle as the translation platform 17 moves, and always maintain effective support for the limit plate 18.

[0027] like Figure 7 as well as Figure 8 As shown, the two sides of the limit plate 18 on one side are fixedly connected with the first mounting seat 21, and the two sides of the limit plate 18 on the opposite side are fixedly connected with the second mounting seat 22. A reinforcement mechanism is installed between the first mounting seat 21 and the second mounting seat 22. The reinforcement mechanism includes a slide groove 23, a slider 24, a first connecting plate 25, a second connecting plate 26, a tooth plate 27, a drive motor 28 and a screw rod 29. The slide groove 23 is opened on the inner side of the first mounting seat 21 and the second mounting seat 22. The slider 24 is limitedly slidably connected to the inner side of the slide groove 23. The slide groove 23 provides precise guidance for the movement of the slider 24.

[0028] like Figure 7 as well as Figure 8 As shown, the outside of the slider 24 located on the outside of the first mounting seat 21 is fixedly connected to the first connecting plate 25, and the first connecting plate 25 is abutted against the side of the pile foundation, and the outside of the slider 24 located on the outside of the second mounting seat 22 is fixedly connected to the second connecting plate 26, and the side close to the first connecting plate 25 and the second connecting plate 26 are fixedly connected to the tooth plate 27, and the two groups of tooth plates 27 are meshed with each other. The meshing design of the tooth plate 27 produces a mechanical self-locking effect, which greatly enhances the clamping force of the connecting plate on the pile foundation.

[0029] like Figure 9 as well as Figure 10 As shown, the outside of the second mounting seat 22 is fixedly connected to a drive motor 28, one side of the drive motor 28 is fixedly connected to a screw rod 29, and the screw rod 29 is rotatably connected to the inner side of the slide groove 23, and the screw rod 29 is engaged with the slider 24 located inside the second mounting seat 22. The drive motor 28 realizes precise movement control of the slider 24 through the transmission of the screw rod 29.

[0030] like Figure 9 as well as Figure 10As shown, a locking mechanism is installed on the inner side of the slot 16, and the locking mechanism includes a screw 30, a positioning block 31 and a positioning nut 32. The screw 30 is threadedly connected to the outside of the first base 1 and the three groups of second bases 2, the positioning block 31 is fixedly connected to the end of the screw 30, and the positioning block 31 abuts against one side of the translation stage 17, the positioning nut 32 is threadedly connected to the outside of the screw 30, and the positioning nut 32 abuts against the outside of the first base 1 and the three groups of second bases 2. The use of the screw 30 and the positioning nut 32 ensures that the position of the translation stage 17 is reliably fixed.

[0031] In this embodiment, after the assembly and positioning of the base frame is completed, the limit plates 18 are installed. First, the two opposite sets of limit plates 18 are rotated and connected to the connecting pieces 19 between the translation platform 17 and the limit plates 18 through the diagonal support rods 20, close to the two sides of the pile foundation and placed at the same height. At the same time, the translation platform 17 is pushed to slide in the base slot 16, so that the two sets of limit plates 18 are respectively against the opposite two sides of the pile foundation. At this time, the first connecting plate 25 on the first mounting seat 21 of the limit plate 18 on one side is slid. The block 24 moves under the guidance of the chute 23, so that the first connecting plate 25 rests on the side of the pile foundation; then the driving motor 28 installed on the second mounting seat 22 of the limiting plate 18 on the other side is started, and the driving motor 28 drives the screw rod 29 to rotate. Since the screw rod 29 is threadedly engaged with the slider 24 in the chute 23 of the second mounting seat 22, the slider 24 can be translated under the limiting guide of the chute 23, driving the second connecting plate 26 fixed on its outside to move toward the first connecting plate 25. As the second connecting plate 26 As the toothed plate 27 fixed on the outside of the second connecting plate 26 and the toothed plate 27 fixed on the first connecting plate 25 gradually approach and finally mesh tightly with each other and press against each other, thereby firmly clamping the limit plates 18 on both sides on the opposite sides of the pile foundation; then, the screw rod 30 on the base is rotated to push the positioning block 31 at its end to press against one side of the translation platform 17, and then the positioning nut 32 on the outside of the screw rod 30 is tightened to lock the position of the screw 30, thereby fixing the positions of the two sets of limit plates 18 and their translation platform 17; then, according to The same operating steps are used to install and fasten the other two sets of limit plates 18 on the other two sides of the pile foundation, located below the first two sets of limit plates 18. This installation method can not only quickly complete the positioning and installation of the entire fixing device, but more importantly, the strong mechanical fastening force generated by the engagement of the tooth plates 27 and the double constraints formed by the staggered arrangement of the upper and lower sets of limit plates 18 in the vertical direction significantly enhance the device's clamping fixation ability and overall stability on the pile foundation, greatly improving the safety of the construction process.

[0032] Finally, it should be noted that while the basic concepts have been described above, it should be apparent to those skilled in the art that the detailed disclosure is provided merely as an example and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and revisions to this specification. Such modifications, improvements, and revisions are suggested throughout this specification and remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe the embodiments of this specification. For example, terms such as "one embodiment," "an embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "one embodiment," "an embodiment," or "an alternative embodiment" two or more times in different places in this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of this specification may be appropriately combined. Furthermore, unless expressly provided in the claims, the order of the processing elements and sequences, the use of alphanumeric characters, or other designations described in this specification are not intended to limit the order of the processes and methods of this specification.

[0033] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pile foundation fixing device for construction engineering, comprising a first base (1), a second base (2) and a limit plate (18), characterized in that: The number of the second bases (2) is three groups, and the first base (1) and the three groups of the second bases (2) have the same overall structure and are symmetrically arranged around the pile foundation. A supporting mechanism is installed between the first base (1) and the pile foundation. The first base (1) and the three groups of the second bases (2) are installed with a plug-in mechanism. Both sides of the first base (1) and the three groups of the second bases (2) are fixedly connected with a fixed cylinder (7). The inner side of the fixed cylinder (7) is slidably connected with a wedge block (8). The end of the wedge block (8) is provided with an inclined surface, and the inclined surfaces of the multiple groups of the wedge blocks (8) are in contact with each other. A position adjustment mechanism is installed on the outside of the wedge block (8) installed on one side of the first base (1). A positioning mechanism is installed on the upper side of the fixed cylinder (7); a slot (16) is provided on the outside of the first base (1) and the three groups of the second bases (2); the inner side of the slot (16) is slidably connected to a translation platform (17); the number of the limiting plates (18) is four and they are against the four sides of the pile foundation; the two groups of limiting plates (18) located on the opposite side outside the pile foundation are at the same height and have a height difference with the other two groups of limiting plates (18); a supporting mechanism is installed between the limiting plates (18) and the translation platform (17); the two sides of the limiting plates (18) located on one side are fixedly connected to the first mounting seat (21), and the two sides of the limiting plates (18) located on the opposite side are fixedly connected to the second mounting seat (22).

2. A pile foundation fixing device for construction engineering according to claim 1, characterized in that: The abutting mechanism comprises a fixing rod (3) and a positioning plate (4), wherein the fixing rod (3) is fixedly connected to the outside of the first base (1), and the positioning plate (4) is fixedly connected to the end of the fixing rod (3), and the positioning plate (4) is in contact with one side of the pile foundation.

3. A pile foundation fixing device for construction engineering according to claim 1, characterized in that: The plug-in mechanism comprises a fixing plate (5) and an anchor rod (6), wherein the fixing plate (5) is fixedly connected to both sides of the first base (1) and three groups of the second bases (2), and the anchor rod (6) is slidably connected to the outside of the fixing plate (5), and the outside of the anchor rod (6) is fixedly connected with a spiral strip structure.

4. A pile foundation fixing device for construction engineering according to claim 1, characterized in that: The position adjustment mechanism includes a slot (9), a vertical plate (10) and a laser pointer (11), wherein the slot (9) is opened on the upper side of the wedge block (8), the vertical plate (10) is plugged into the inner side of the slot (9), the laser pointer (11) is fixedly connected to the outside of the vertical plate (10), and the laser emission direction of the laser pointer (11) coincides with the direction of the inclined surface outside the wedge block (8), and the outside of the wedge block (8) is fixedly connected with a scale (15).

5. The pile foundation fixing device for construction engineering according to claim 1, characterized in that: The positioning mechanism includes a fastening bolt (12), a support plate (13) and a fastening nut (14), wherein the fastening bolt (12) is threadedly connected to the upper side of the fixing cylinder (7), the support plate (13) is fixedly connected to the bottom of the fastening bolt (12), and the support plate (13) abuts against the upper side of the wedge block (8), and the external thread of the fastening bolt (12) is connected to the fastening nut (14), and the fastening nut (14) abuts against the upper side of the fixing cylinder (7).

6. A pile foundation fixing device for construction engineering according to claim 1, characterized in that: The support mechanism comprises a connecting member (19) and an oblique support rod (20), wherein the connecting member (19) is fixedly connected to the outside of the translation platform (17) and the limiting plate (18), and the oblique support rod (20) is rotatably connected between the two groups of the connecting members (19).

7. A pile foundation fixing device for construction engineering according to claim 1, characterized in that: A reinforcement mechanism is installed between the first mounting seat (21) and the second mounting seat (22); the reinforcement mechanism includes a slide groove (23), a slider (24), a first connecting plate (25), a second connecting plate (26), a tooth plate (27), a drive motor (28) and a screw rod (29); the slide groove (23) is opened on the inner side of the first mounting seat (21) and the second mounting seat (22); the slider (24) is limitedly slidably connected to the inner side of the slide groove (23).

8. A pile foundation fixing device for construction engineering according to claim 7, characterized in that: The outside of the slider (24) located outside the first mounting seat (21) is fixedly connected to a first connecting plate (25), and the first connecting plate (25) abuts against the side of the pile foundation. The outside of the slider (24) located outside the second mounting seat (22) is fixedly connected to a second connecting plate (26). The first connecting plate (25) and the second connecting plate (26) are fixedly connected to the side close to each other with tooth plates (27), and the two groups of tooth plates (27) are meshed with each other.

9. A pile foundation fixing device for construction engineering according to claim 8, characterized in that: The outside of the second mounting seat (22) is fixedly connected to a driving motor (28), one side of the driving motor (28) is fixedly connected to a screw rod (29), and the screw rod (29) is rotatably connected to the inner side of the slide groove (23), and the screw rod (29) is engaged with the slider (24) located inside the second mounting seat (22).

10. A pile foundation fixing device for construction engineering according to claim 1, characterized in that: A locking mechanism is installed on the inner side of the slot (16); the locking mechanism includes a screw (30), a positioning block (31) and a positioning nut (32); the screw (30) is threadedly connected to the outside of the first base (1) and the three groups of the second bases (2); the positioning block (31) is fixedly connected to the end of the screw (30), and the positioning block (31) abuts against one side of the translation stage (17); the positioning nut (32) is threadedly connected to the outside of the screw (30), and the positioning nut (32) abuts against the outside of the first base (1) and the three groups of the second bases (2).

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