A foundation pit reinforcement device for building construction projects

Abstract

This invention discloses a foundation pit reinforcement device for building construction, comprising a support frame, a traction device, a first positioning device, a transmission assembly, and a limiting assembly. The support frame is equipped with multiple anchor rods. The traction device is movably mounted on the support frame and has multiple traction components distributed on it, each connected to a specific anchor rod. The traction device is used to pull the anchor rods driven into the soil layer using these components. The first positioning device is located at the bottom of the support frame and is connected to the traction device via the transmission assembly. The first positioning device fixes the support frame to the foundation pit wall while simultaneously dragging the traction device via the transmission assembly, thereby cooperating with the anchor rods to provide support for the foundation pit wall. The limiting assembly is connected to the first positioning device and prevents the first positioning device from being pulled out of the ground. This invention belongs to the field of foundation pit support technology, specifically referring to a foundation pit reinforcement device for building construction.

Description

Technical Field

[0001] This invention belongs to the field of foundation pit support technology, specifically referring to a foundation pit reinforcement device for building engineering. Background Technology

[0002] Excavation pit support, as a key engineering technology, plays a crucial role in safeguarding the stability of underground spaces. It effectively ensures the safety of construction personnel and equipment, prevents the intrusion of groundwater and soil, reduces the incidence of engineering accidents, and ensures the smooth progress of construction.

[0003] In related technologies, foundation pit support typically employs rigid sheet piles or other anti-overturning structures fixed to the inner wall of the foundation pit. Because the anti-overturning capacity of this support structure is constant, when the collapse force of a certain pit wall exceeds its anti-overturning capacity, the anti-overturning structure will gradually damage and fail, affecting the balance of the foundation pit wall support. Furthermore, the support method used is singular, relying solely on sheet piles and other simple support structures, which cannot effectively provide diversified support. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a foundation pit reinforcement device for building engineering, which effectively solves the above problems.

[0005] The technical solution adopted by this invention is as follows: This invention proposes a foundation pit reinforcement device for construction engineering, including a support frame, a traction device, a first positioning device, a transmission assembly, and a limiting assembly. Multiple anchor rods are installed on the support frame. The traction device is movably mounted on the support frame and has multiple traction components distributed on it. Each traction component is connected to a multiple anchor rod. The traction device is used to pull the anchor rods driven into the soil layer through the traction components. The first positioning device is located at the bottom of the support frame and is connected to the traction device through the transmission assembly. The first positioning device is used to fix the support frame to the foundation pit wall while simultaneously dragging the traction device through the transmission assembly, thereby cooperating with the anchor rods to provide support for the foundation pit wall. The limiting assembly is connected to the first positioning device and is used to prevent the first positioning device from being pulled out of the ground.

[0006] Furthermore, multiple support plates are connected to the support frame, and multiple anchor rods are inserted through the support plates. One end of the anchor rod is provided with a limiting part, and the other end of the anchor rod can be moved through the support plate. A tension steel cable is fixedly connected inside the anchor rod and passes through the limiting part.

[0007] Furthermore, the traction device includes a translational support beam, a main support horizontal plate, a secondary support horizontal plate, and a traction column. The main support horizontal plate, the traction column, and the secondary support horizontal plate are fixedly connected between two translational support beams. The traction column is located on both sides of the main support horizontal plate, and the secondary support horizontal plate is located on one side of the traction column. Multiple translational swing rods are rotatably mounted on each translational support beam. One end of the translational swing rod is rotatably connected to the translational support beam, and the other end is rotatably connected to a support seat. The support seat is welded and fixed to both sides of the support frame. Multiple traction components are rotatably mounted on each traction column, and the traction components are connected to the traction steel cables on the corresponding anchor rods.

[0008] Furthermore, the transmission assembly includes a transmission device, a transmission gear, and a support frame. A transmission steel cable is connected between the transmission device and the main support cross plate. The transmission device can be lifted and lowered on one side of the support frame. The support frame is fixedly mounted on the base. The base is fixedly mounted on the bottom of the support frame. The transmission gear is rotatably mounted on the support frame.

[0009] Furthermore, the transmission device includes two symmetrically arranged transmission gear plates, which mesh with transmission gears. The tops of the two transmission gear plates are fixedly connected by an upper connecting plate. A first terminal is symmetrically arranged on one side of the upper connecting plate. The first terminal is detachably connected to a transmission steel cable. The other end of the transmission steel cable is fixedly connected to a terminal block. The terminal block is rotatably arranged on both sides of the docking part. The docking part is fixedly arranged on the surface of the main support cross plate. The bottoms of the two transmission gear plates are fixedly connected by a lower connecting plate. Sliding connectors are arranged on both sides of the lower connecting plate. A limiting slide rod passes through the sliding connector and is fixedly arranged on one side of the support frame.

[0010] Furthermore, the first positioning device can be lifted and installed on the other side of the support frame. The first positioning device includes a limiting support plate, a positioning rod, a lower pressure plate, and a limiting component. The lower pressure plate is symmetrically arranged on the bottom of one side of the limiting support plate. Multiple positioning rods are fixedly installed on the bottom of each lower pressure plate. An insertion port is opened on the base surface of the corresponding positioning rod. The limiting component is fixedly installed on one side surface of the limiting support plate. A rack portion is symmetrically arranged on the other side surface of the limiting support plate. The rack portion meshes with the transmission gear.

[0011] Furthermore, the limiting component includes a limiting support frame, an adjusting screw, and a limiting pressure plate. The limiting support frame is located on the front side of the limiting support plate and is welded and fixed to the base. A limiting groove is provided on one side of the limiting support frame, and a limiting guide rod is vertically fixed in the limiting groove. The adjusting screw is vertically located on one side of the limiting guide rod. One end of the adjusting screw slides through the limiting component and is rotatably connected to the base, while its other end is rotatably connected to the top of the limiting support frame. The other end of the adjusting screw is provided with a driving part, and a rotating rod is movably passed through the driving part. The limiting pressure plate is raised and lowered above the limiting component. One end of the limiting pressure plate is threadedly connected to the adjusting screw, and its other end is connected to the limiting groove and is slidably passed through by the limiting guide rod.

[0012] Furthermore, the first positioning device is connected to a second positioning device, which includes a positioning pressure plate and a positioning insert plate. Multiple positioning insert plates are distributed on the lower surface of the positioning pressure plate, and a drag part is provided on the upper surface of the positioning pressure plate. A support top plate is fixedly connected to the top of the support frame. Multiple pulleys are rotatably provided at one end of the support top plate, and positioning steel cables are rolled on the pulleys. One end of the positioning steel cable is fixedly connected to the positioning pressure plate, and the other end of the positioning steel cable is fixedly connected to the top of the limiting support plate.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows:

[0014] The support frame is attached to the pit wall to provide the main support. The traction device, which is movably set on the surface of the support frame, works with the anchor rods driven into the soil to provide traction. At the same time, the first positioning device pulls the traction device downward through the transmission component, further increasing the traction effect of the traction device. Under the relative action, the support frame is firmly attached to the pit wall, providing a stable support effect.

[0015] The traction device, consisting of a translational support beam, a translational swing rod, a main support horizontal plate, a traction column, and traction components, pulls the anchor rods driven deep into the pit wall via the traction components on the traction column during use. When the support frame tilts outward due to the pressure of the surface soil layer of the pit wall, the traction of the anchor rods causes the translational support beam to move upward via the translational swing rod. This causes the main support horizontal plate to pull the transmission device upward via the transmission steel cable. At this time, the first positioning device moves downward in conjunction with it, further increasing the depth of the positioning rod at its bottom inserted into the soil layer. This, combined with the traction device, further enhances the support effect of the support frame, providing continuous and stable support as compensation for the tilt of the support frame. The support effect increases with the increase of the pit wall pressure.

[0016] The limiting component connected to the first positioning device can limit the first positioning device after installation by adjusting the cooperation between the screw and the limiting pressure plate, so as to ensure that it is firmly inserted into the soil layer and prevent it from falling out. At the same time, the second positioning device, which is connected to the first positioning device through the positioning steel cable, is fixedly set on the soil layer at a certain distance from the top of the foundation pit, which can reinforce the top of the support frame, diversify the support methods, and further improve the support effect of the foundation pit. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a foundation pit reinforcement device for building engineering proposed in this invention;

[0018] Figure 2 This is a structural diagram of a limiting component of a foundation pit reinforcement device for building engineering proposed in this invention;

[0019] Figure 3 This is a schematic diagram of the main view structure of a foundation pit reinforcement device for building engineering proposed in this invention;

[0020] Figure 4 This is an enlarged view of the structure at point A, which is a foundation pit reinforcement device for building engineering proposed in this invention;

[0021] Figure 5 This is a structural diagram of a traction device for a foundation pit reinforcement device in building engineering, as proposed in this invention.

[0022] Figure 6 This is a structural diagram of the transmission device for a foundation pit reinforcement device in building engineering proposed in this invention;

[0023] Figure 7 This is a schematic diagram of the structure of the second positioning device of a foundation pit reinforcement device for building engineering proposed in this invention;

[0024] Figure 8 This is a schematic diagram of the first positioning device of a foundation pit reinforcement device for building engineering proposed in this invention.

[0025] The components include: 1. Support frame; 2. Pulling device; 3. Anchor bolt; 4. First positioning device; 5. Second positioning device; 6. Transmission assembly; 7. Limiting assembly; 8. Base; 9. Support top plate; 10. Support plate; 11. Support seat; 12. Pulley; 13. Support frame; 14. Transmission gear; 15. Limiting slide rod; 16. Socket; 17. Rotating rod; 18. Drive unit; 19. Adjusting screw; 20. Limiting support frame; 21. Limiting slide groove; 22. Limiting guide rod; 23. Limiting pressure plate; 24. Translational support beam; 25. Secondary support cross plate. 26. Main support horizontal plate; 27. Translation swing rod; 28. Pulling column; 29. ​​Pulling component; 30. Connecting part; 31. Terminal block; 32. Transmission steel cable; 33. Transmission device; 34. Upper connecting plate; 35. Lower connecting plate; 36. Transmission gear plate; 37. First terminal; 38. Sliding connector; 39. Limiting support plate; 40. Rack part; 41. Limiting component; 42. Lower pressure plate; 43. Positioning rod; 44. Positioning pressure plate; 45. Positioning insert plate; 46. Dragging part; 47. Limiting part; 48. Pulling steel cable; 49. Positioning steel cable.

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] like Figures 1-8 As shown, this invention proposes a foundation pit reinforcement device for construction engineering, including a support frame 1, a traction device 2, a first positioning device 4, a transmission assembly 6, and a limiting assembly 7. The support frame 1 is provided with multiple anchor rods 3. The traction device 2 is movably mounted on the support frame 1 and has multiple traction elements 29 distributed on it. Each traction element 29 is connected to a multiple anchor rod 3. The traction device 2 is used to pull the anchor rods 3 driven into the soil layer through the traction elements 29. The first positioning device 4 is located at the bottom of the support frame 1 and is connected to the traction device 2 through the transmission assembly 6. The first positioning device 4 is used to fix the support frame 1 to the foundation pit wall while simultaneously dragging the traction device 2 through the transmission assembly 6, thereby cooperating with the anchor rods 3 to provide support for the foundation pit wall. The limiting assembly 7 is connected to the first positioning device 4 and is used to prevent the first positioning device 4 from being pulled out of the ground.

[0030] In one embodiment of the present invention, a plurality of support plates 10 are connected to the support frame 1, and a plurality of anchor rods 3 are inserted through the support plates 10. One end of the anchor rod 3 is provided with a limiting part 47, and the other end of the anchor rod 3 movably passes through the support plate 10. A tension steel cable 48 is fixedly connected inside the anchor rod 3 and passes through the limiting part 47.

[0031] In one embodiment of the present invention, the traction device 2 includes a translational support beam 24, a main support horizontal plate 26, a secondary support horizontal plate 25, and a traction column 28. The main support horizontal plate 26, the traction column 28, and the secondary support horizontal plate 25 are fixedly connected between two translational support beams 24. The traction column 28 is disposed on both sides of the main support horizontal plate 26, and the secondary support horizontal plate 25 is disposed on one side of the traction column 28. Multiple translational swing rods 27 are rotatably disposed on each translational support beam 24. One end of the translational swing rod 27 is rotatably connected to the translational support beam 24, and the other end is rotatably connected to a support seat 11. The support seat 11 is welded and fixed to both sides of the support frame 1. Multiple traction members 29 are rotatably disposed on each traction column 28. The traction members 29 are connected to the traction steel cable 48 on the corresponding anchor rod 3.

[0032] In one embodiment of the present invention, the transmission assembly 6 includes a transmission device 33, a transmission gear 14 and a support frame 13. A transmission steel cable 32 is connected between the transmission device 33 and the main support cross plate 26. The transmission device 33 is vertically and vertically mounted on one side of the support frame 13. The support frame 13 is fixedly mounted on the base 8. The base 8 is fixedly mounted on the bottom of the support frame 1. The transmission gear 14 is rotatably mounted on the support frame 13.

[0033] In one embodiment of the present invention, the transmission device 33 includes two symmetrically arranged transmission gear plates 36, which mesh with the transmission gear 14. The tops of the two transmission gear plates 36 are fixedly connected by an upper connecting plate 34. A first terminal 37 is symmetrically arranged on one side of the upper connecting plate 34. The first terminal 37 is detachably connected to the transmission steel cable 32. The other end of the transmission steel cable 32 is fixedly connected to a terminal block 31. The terminal block 31 is rotatably arranged on both sides of the docking part 30. The docking part 30 is fixedly arranged on the surface of the main support horizontal plate 26. The bottoms of the two transmission gear plates 36 are fixedly connected by a lower connecting plate 35. Sliding connectors 38 are arranged on both sides of the lower connecting plate 35. A limiting slide rod 15 passes through the sliding connector 38. The limiting slide rod 15 is fixedly arranged on one side of the support frame 13.

[0034] In one embodiment of the present invention, the first positioning device 4 is elliptical and movably disposed on the other side of the support frame 13. The first positioning device 4 includes a limiting support plate 39, a positioning rod 43, a lower pressure plate 42 and a limiting member 41. The lower pressure plate 42 is symmetrically disposed on one side bottom of the limiting support plate 39. A plurality of positioning rods 43 are respectively fixedly disposed on the bottom of each lower pressure plate 42. An insertion port 16 is provided on the surface of the base 8 corresponding to the positioning rod 43. The limiting member 41 is fixedly disposed on one side surface of the limiting support plate 39. A rack portion 40 is symmetrically disposed on the other side surface of the limiting support plate 39. The rack portion 40 meshes with the transmission gear 14.

[0035] In one embodiment of the present invention, the limiting component 7 includes a limiting support frame 20, an adjusting screw 19, and a limiting pressure plate 23. The limiting support frame 20 is disposed on the front side of the limiting support plate 39 and is welded and fixed to the base 8. A limiting groove 21 is provided on one side of the limiting support frame 20. A limiting guide rod 22 is vertically fixed in the limiting groove 21. The adjusting screw 19 is vertically disposed on one side of the limiting guide rod 22. One end of the adjusting screw 19 slides through the limiting component 41 and is rotatably connected to the base 8, and the other end is rotatably connected to the top of the limiting support frame 20. The other end of the adjusting screw 19 is provided with a driving part 18. A rotating rod 17 is movably passed through the driving part 18. The limiting pressure plate 23 is raised and lowered above the limiting component 41. One end of the limiting pressure plate 23 is threadedly connected to the adjusting screw 19, and the other end is connected to the limiting groove 21 and is slidably passed through by the limiting guide rod 22.

[0036] In one embodiment of the present invention, a first positioning device 4 is connected to a second positioning device 5. The second positioning device 5 includes a positioning pressure plate 44 and a positioning insert plate 45. Multiple positioning insert plates 45 are distributed on the lower surface of the positioning pressure plate 44. A dragging part 46 is provided on the upper surface of the positioning pressure plate 44. A support top plate 9 is fixedly connected to the top of the support frame 1. Multiple pulleys 12 are rotatably provided on one end of the support top plate 9. A positioning steel cable 49 is rolled on the pulleys 12. One end of the positioning steel cable 49 is fixedly connected to the positioning pressure plate 44, and the other end of the positioning steel cable 49 is fixedly connected to the top of the limiting support plate 39.

[0037] Working Principle: When using the foundation pit reinforcement device of this invention for building engineering to support and reinforce the foundation pit wall, the device is first installed at the designated pit wall location. Personnel then attach the support frame 1 to the designated pit wall location. Multiple sets of anchor rods 3 are then driven deep into the pit wall through the support plate 10, leaving a certain space between the limiting part 47 at the end of the anchor rod 3 and the support plate 10. The tension cable 48 extending from the limiting part 47 is then connected to the tension member 29 on the tension column 28, maintaining the tension device 2's position relative to the support plate 10 in the same manner. Figure 1The state shown allows the translational support beam 24, in conjunction with the translational swing arm 27, to move upward under the pull of the anchor rod 3. This allows it to move upward under the drive of this structure when subjected to subsequent force. Then, the relevant personnel drive the first positioning device 4 on one side into the soil layer. The relevant personnel use hammers or pressure instruments to press down the lower pressure plate 42, causing the positioning rod 43 at its bottom to pass through the insertion port 16 on the base 8 and insert into the soil layer below to a certain depth, leaving room for further downward insertion. Then, the relevant personnel can drive the adjusting screw 19 by rotating the rod 17 to lower the limiting pressure plate 23 and attach it to the limiting part 41 to limit the entire limiting support plate 39. At the same time, under the linkage of the transmission gear 14, the transmission device 33 on one side moves upward through the drive of the transmission tooth plate 36. Then, the relevant personnel use the transmission steel cable 32 to connect the docking part 30 to the first terminal 37 at the upper connecting plate 34. At this time, the transmission device 33 forms a downward pulling effect on the pulling device 2.

[0038] In this embodiment, relevant personnel can also set a second positioning device 5 on the surface of the soil layer at a certain distance from the top of the foundation pit. The positioning inserts 45 distributed at the bottom of the positioning pressure plate 44 are inserted into the soil layer, and the positioning steel cable 49 is connected to the first positioning device 4 under the transmission of the pulley 12 installed on the support top plate 9, so as to form a pulling and reinforcing effect on the top of the support frame 1, and then the static support effect on the foundation pit wall is completed.

[0039] In one embodiment of this application, the support frame 1 under static support may tilt outward under the pressure of the pit wall soil. During this process, the traction device 2 can reinforce it with the first positioning device 4 in cooperation with the transmission component 6. When the upper part of the support frame 1 tilts outward, under the traction of the anchor rod 3, the interaction force between the traction device 2 and the support frame 1 causes it to move upward through the translation swing rod 27. At this time, the docking part 30 provided on the main support horizontal plate 26 can pull the transmission device 33 upward through the transmission steel cable 32. At this time, the upper connecting plate 34 drives the transmission tooth plate 36 to move upward, so that the lower connecting plate 35 moves upward along the limiting slide rod 15 provided on the support frame 13 through the sliding connectors 38 on both sides. With the cooperation of the transmission gear 14 and the transmission toothed plate 36, the transmission gear 14 drives the rack part 40 set on one side of the first positioning device 4 to descend, thereby causing the limiting support plate 39 to descend as a whole. The positioning rod 43 distributed at the bottom of the lower pressure plate 42 cooperates with the soil resistance to limit the tilt of the support frame 1 with the anchor rod 3 and the traction device 2, and gradually increases the depth of insertion into the soil layer. In conjunction with the traction device 2, the reinforcement effect is further increased. At the same time, the second positioning device 5 can also pull the first positioning device 4 through the positioning steel cable 49. While reinforcing the upper part of the support frame 1, it also supports and limits the tilt of the support frame 1 in conjunction with the traction device 2, achieving a dynamic support effect. The support effect can be increased as the pressure of the pit wall increases.

[0040] In summary, the present invention provides a foundation pit reinforcement device for construction engineering: a support frame is attached to the foundation pit wall to provide the main support effect; a traction device movably installed on the surface of the support frame works in conjunction with anchor rods driven into the soil to provide a traction effect; at the same time, a first positioning device pulls the traction device downward through a transmission component, further increasing the traction effect of the traction device; under the relative action, the support frame is firmly attached to the foundation pit wall, providing a stable support effect. The traction device, consisting of a translational support beam, a translational swing rod, a main support horizontal plate, a traction column, and traction components, pulls the anchor rods driven deep into the pit wall via the traction components on the traction column during use. When the support frame tilts outward due to the pressure of the surface soil layer of the pit wall, the traction of the anchor rods causes the translational support beam to move upward via the translational swing rod. This causes the main support horizontal plate to pull the transmission device upward via the transmission steel cable. At this time, the first positioning device moves downward in conjunction with it, further increasing the depth of the positioning rod at its bottom inserted into the soil layer. This, combined with the traction device, further enhances the support effect of the support frame, providing continuous and stable support as compensation for the tilt of the support frame. The support effect increases with the increase of the pit wall pressure. The limiting component connected to the first positioning device can limit the first positioning device after installation by adjusting the cooperation between the screw and the limiting pressure plate, so as to ensure that it is firmly inserted into the soil layer and prevent it from falling out. At the same time, the second positioning device, which is connected to the first positioning device through the positioning steel cable, is fixedly set on the soil layer at a certain distance from the top of the foundation pit, which can reinforce the top of the support frame, diversify the support methods, and further improve the support effect of the foundation pit.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0043] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A foundation pit reinforcement device for building construction, characterized in that: It includes a support frame (1), a traction device (2), a first positioning device (4), a transmission assembly (6), and a limiting assembly (7); The support frame (1) is provided with multiple anchor rods (3); The traction device (2) can be moved and positioned on the support frame (1). Multiple traction components (29) are distributed on the traction device (2). The multiple traction components (29) are connected to multiple anchor rods (3) respectively. The traction device (2) is used to pull the anchor rods (3) driven into the soil layer through the traction components (29). The first positioning device (4) is located at the bottom of the support frame (1). The first positioning device (4) is connected to the pulling device (2) through the transmission assembly (6). The first positioning device (4) is used to fix the support frame (1) to the pit wall while dragging the pulling device (2) through the transmission assembly (6), thereby cooperating with the anchor rod (3) to provide support for the support frame (1) to the pit wall. The limiting component (7) is connected to the first positioning device (4), and the limiting component (7) is used to prevent the first positioning device (4) from being pulled out of the ground; The traction device (2) includes a translational support beam (24), a main support plate (26), a secondary support plate (25), and a traction column (28). A main support plate (26), a tie column (28), and a secondary support plate (25) are fixedly connected between two translational support beams (24). The tie column (28) is located on both sides of the main support plate (26), and the secondary support plate (25) is located on one side of the tie column (28). Each of the translational support beams (24) is rotatably provided with multiple translational swing rods (27). One end of each translational swing rod (27) is rotatably connected to the translational support beam (24), and the other end is rotatably connected to a support seat (11). The support seat (11) is welded and fixed to both sides of the support frame (1). Multiple of the aforementioned tension members (29) are rotatably mounted on each tension post (28), and the tension members (29) are connected to the tension cables (48) on the corresponding anchor rods (3); The transmission assembly (6) includes a transmission device (33), a transmission gear (14), and a support frame (13). A transmission cable (32) is connected between the transmission device (33) and the main support plate (26). The transmission device (33) can be raised and lowered on one side of the support frame (13). The support frame (13) is fixedly mounted on the base (8), and the base (8) is fixedly mounted on the bottom of the support frame (1); The transmission gear (14) is rotatably mounted on the support frame (13); The transmission device (33) includes two symmetrically arranged transmission gear plates (36), which mesh with the transmission gear (14). The tops of the two transmission gear plates (36) are fixedly connected by an upper connecting plate (34). A first terminal (37) is symmetrically arranged on one side of the upper connecting plate (34). The first terminal (37) is detachably connected to the transmission steel cable (32). The other end of the transmission steel cable (32) is fixedly connected to a terminal plate (31). The terminal plate (31) is rotatably arranged on both sides of the docking part (30). The docking part (30) is fixedly arranged on the surface of the main support cross plate (26). The bottoms of the two transmission gear plates (36) are fixedly connected by a lower connecting plate (35). Sliding connectors (38) are provided on both sides of the lower connecting plate (35). A limiting slide rod (15) is passed through the sliding connector (38). The limiting slide rod (15) is fixedly set on one side of the support frame (13).

2. The foundation pit reinforcement device for building construction according to claim 1, characterized in that: The support frame (1) is connected to multiple support plates (10), and multiple anchor rods (3) are installed on the support plates (10). One end of the anchor rod (3) is provided with a limiting part (47), and the other end of the anchor rod (3) is movably inserted through the support plate (10). A tension cable (48) is fixedly connected inside the anchor rod (3) and passes through the limiting part (47).

3. The foundation pit reinforcement device for building construction according to claim 2, characterized in that: The first positioning device (4) can be raised and lowered on the other side of the support frame (13). The first positioning device (4) includes a limiting support plate (39), a positioning rod (43), a lower pressure plate (42), and a limiting member (41). The lower pressure plate (42) is symmetrically arranged at the bottom of one side of the limiting support plate (39); Multiple positioning rods (43) are fixedly installed at the bottom of each lower pressure plate (42), and an insertion port (16) is provided on the surface of the base (8) corresponding to the positioning rod (43). The limiting member (41) is fixedly disposed on one side surface of the limiting support plate (39); The other side surface of the limiting support plate (39) is symmetrically provided with a rack portion (40), which meshes with the transmission gear (14).

4. The foundation pit reinforcement device for building construction according to claim 3, characterized in that: The limiting component (7) includes a limiting support frame (20), an adjusting screw (19), and a limiting pressure plate (23). The limiting support frame (20) is located on the front side of the limiting support plate (39). The limiting support frame (20) is welded and fixed to the base (8). A limiting groove (21) is opened on one side of the limiting support frame (20). A limiting guide rod (22) is vertically fixed in the limiting groove (21). The adjusting screw (19) is vertically arranged on one side of the limiting guide rod (22). One end of the adjusting screw (19) slides through the limiting member (41) and is rotatably connected to the base (8), and the other end is rotatably connected to the top of the limiting support frame (20). The other end of the adjusting screw (19) is provided with a driving part (18), and a rotating rod (17) is movably passed through the driving part (18). The limiting pressure plate (23) can be raised and lowered above the limiting member (41). One end of the limiting pressure plate (23) is threadedly connected to the adjusting screw (19), and the other end is connected to the limiting slide groove (21) and slidably penetrated by the limiting guide rod (22).

5. A foundation pit reinforcement device for building construction according to claim 4, characterized in that: The first positioning device (4) is connected to the second positioning device (5). The second positioning device (5) includes a positioning pressure plate (44) and a positioning insert plate (45). Multiple positioning insert plates (45) are distributed on the lower surface of the positioning pressure plate (44). A drag part (46) is provided on the upper surface of the positioning pressure plate (44). A support top plate (9) is fixedly connected to the top of the support frame (1). Multiple pulleys (12) are rotatably provided on one end of the support top plate (9). A positioning steel cable (49) is rolled on the pulley (12). One end of the positioning steel cable (49) is fixedly connected to the positioning pressure plate (44), and the other end of the positioning steel cable (49) is fixedly connected to the top of the limiting support plate (39).

Images