Basement tower crane foundation structure

Abstract

The present invention relates to a basement tower crane foundation structure, which includes a mounting platform, wherein a plurality of leveling assemblies are circumferentially arranged on the mounting platform, the leveling assembly includes a threaded rod vertically slidably inserted into the mounting platform, a nut is threadedly connected to the rod body of the threaded rod located above the mounting platform, and a plurality of aggregate plates are circumferentially hinged to the rod body of the threaded rod located below the mounting platform; the leveling assembly also includes a plurality of support rods, one support rod corresponding to one aggregate plate, the top end of the support rod is arranged on the lower surface of the mounting platform, and the bottom end thereof slides and rotates with the corresponding aggregate plate; a detection assembly for detecting whether the mounting platform is tilted is provided, the detection assembly includes a detection cylinder arranged on the mounting platform, a sensing ball is suspended at the center position of the detection cylinder by a pull wire, and a plurality of proximity switches are evenly arranged circumferentially on the inner side wall of the detection cylinder. The present application has the advantage of being able to achieve leveling of the tower crane foundation.

Description

Technical Field

[0001] The invention relates to the field of construction engineering, in particular to a basement tower crane foundation structure. Background Art

[0002] When constructing a tower crane foundation for a building structure with a basement, the location of the tower crane foundation is limited due to the settlement post-cast strips around the residential building. If the tower crane is installed outside the basement, it will be too far away from the building, affecting the transportation of construction materials. Therefore, it is usually chosen to install the tower crane foundation below the basement floor.

[0003] Chinese patent publication number CN108222054B discloses a tower crane foundation structure and its construction method, which includes a plurality of piles sunk vertically into the bottom of a basement, the tops of the piles being connected to a horizontal tower crane installation platform, and the basement being filled with a dense soil layer.

[0004] During the construction process, the top of the basement is bound to have not yet been sealed. Therefore, when it rains, the rainwater may make the soil in the basement become loose, and the tower crane foundation may tilt in the soft soil, thus affecting the construction. Summary of the Invention

[0005] In order to improve the problem of construction being affected by the tilt of the tower crane foundation, the present application provides a basement tower crane foundation structure.

[0006] The basement tower crane foundation structure provided in this application adopts the following technical solution:

[0007] A basement tower crane foundation structure includes a mounting platform, wherein a plurality of leveling assemblies are circumferentially arranged on the mounting platform, the leveling assembly includes a threaded rod vertically slidingly inserted into the mounting platform, a nut is threadedly connected to the rod body of the threaded rod located above the mounting platform, and a plurality of aggregate plates are circumferentially hinged to the rod body of the threaded rod located below the mounting platform; the leveling assembly also includes a plurality of support rods, one support rod corresponding to one aggregate plate, the top end of the support rod is arranged on the lower surface of the mounting platform, and the bottom end thereof slides and rotates with the corresponding aggregate plate; a pulling assembly for pulling the threaded rod is movably arranged on the mounting platform.

[0008] By adopting the above technical solution, when the installation platform tilts, the worker first determines the tilt direction of the installation platform, then applies an upward pulling force to the top of the corresponding threaded rod through the pulling assembly. The threaded rod drives the soil-collecting plate to rotate. The multiple soil-collecting plates cooperate to accumulate the soil layer during rotation. During the accumulation of the soil layer, a reverse force is applied to the installation platform, thereby lifting the installation platform upward and leveling the installation platform. By setting the above-mentioned leveling assembly and pulling assembly, the present application can achieve leveling of the tilted installation platform, thereby reducing the possibility of the tilt of the tower crane foundation affecting the construction project.

[0009] Optionally, the pulling assembly includes a mounting seat, a hydraulic cylinder is provided on the mounting seat, and the piston rod of the hydraulic cylinder faces downward and is used for detachable connection with the top end of the threaded rod.

[0010] By adopting the above technical solution, workers connect the piston rod of the hydraulic cylinder to the top end of the corresponding threaded rod, and then retract the piston rod of the hydraulic cylinder, thereby applying an upward pulling force to the threaded rod.

[0011] Optionally, the mounting base includes a mounting plate and a plurality of legs connected to one side of the mounting plate, and the mounting platform is provided with positioning holes corresponding one-to-one to the legs for insertion.

[0012] By adopting the above technical solution, the plug-in cooperation between the positioning hole and the support leg plays a role in positioning and aligning the connection between the hydraulic cylinder piston rod and the threaded rod.

[0013] Optionally, a plurality of pulling assemblies are provided on the mounting platform.

[0014] By adopting the above technical solution, multiple pulling components cooperate to drive multiple leveling components to achieve leveling, which is beneficial to improving the leveling accuracy and stability of the installation platform.

[0015] Optionally, the other side of the polymer plate that is rotatably engaged with the threaded rod is bent into an arc shape toward the axis of the threaded rod.

[0016] By adopting the above technical solution, the arc-shaped setting is conducive to improving the stacking effect of the soil-accumulating plate on the soil layer, and enhancing the reaction effect of the soil layer on the installation platform.

[0017] Optionally, the mounting platform is provided with a detection component for detecting whether it is tilted, the detection component includes a detection cylinder arranged on the mounting platform, an induction ball is suspended at the center position of the detection cylinder by a pull wire, and a plurality of proximity switches are evenly arranged circumferentially on the inner wall of the detection cylinder, and the plurality of proximity switches are electrically connected to the control system.

[0018] By adopting this technical solution, when the installation platform remains level, the sensor ball is outside the detection range of all proximity switches. If the installation platform tilts, the pull wire remains vertical due to the weight of the sensor ball. As a result, the sensor ball's position relative to the proximity switch changes, which is detected by the proximity switch, indicating that the installation platform has tilted. The sensor ball also provides feedback on the tilt direction, facilitating subsequent leveling of the installation platform.

[0019] Optionally, a water-conducting membrane having an annular shape and a double-layer structure is provided circumferentially of the installation platform, and the water-conducting membrane is arranged to be inclined downward in a direction away from the axis of the installation platform.

[0020] By adopting the above technical solution, when it rains, rainwater is diverted away from the installation platform by the water-conducting membrane, so that the rainwater is not easy to wet the soil layer below the installation platform, thereby reducing the possibility of the tower crane foundation tilting.

[0021] Optionally, a limit bar is provided in the double-layer structure of the water-conducting membrane. The limit bar is arranged to be inclined downward in a direction away from the axis of the installation platform. A plurality of limit bars are circumferentially arranged in the double-layer structure of the water-conducting membrane.

[0022] By adopting the above technical solution, the limiting strip has a certain limiting effect on the water-conducting membrane through its own gravity, reducing the possibility of the water-conducting membrane being blown up and wrinkled by strong winds, thereby improving the water-conducting membrane's diversion effect on rainwater.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up the leveling components and the pulling components, the inclined installation platform can be leveled, thereby reducing the possibility of the tower crane foundation tilting and affecting the construction project;

[0025] 2. When the installation platform tilts, the pull wire remains vertical under the action of the gravity of the sensor ball. Therefore, the position of the sensor ball relative to the proximity switch changes. The sensor ball will be sensed by the proximity switch, indicating that the installation platform has tilted. It can also feedback the tilt direction of the installation platform, so that workers can subsequently level the installation platform.

[0026] 3. When it rains, the rainwater is diverted away from the installation platform by the water-conducting membrane, so that the rainwater is not easy to wet the soil layer under the installation platform, thereby reducing the possibility of the tower crane foundation tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of an embodiment of the present application.

[0028] Figure 2It is a cross-sectional view of the installation platform, detection assembly, and water-conducting membrane in the embodiment of the present application.

[0029] Figure 3 It is a structural diagram of the threaded rod, nut, and polysoil plate in the embodiment of the present application.

[0030] Figure 4 It is a structural schematic diagram of the drawing assembly in an embodiment of the present application.

[0031] Explanation of the accompanying reference numerals: 1. Mounting platform; 101. Positioning hole; 102. Sliding groove; 21. Threaded rod; 22. Nut; 23. Polysoil plate; 24. Support rod; 3. Pulling assembly; 31. Mounting seat; 311. Mounting plate; 312. Support leg; 32. Hydraulic cylinder; 4. Detection assembly; 41. Detection tube; 42. Sensing ball; 43. Pull wire; 44. Proximity switch; 5. Water-conducting membrane; 6. Limiting strip; 7. Frame. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses a basement tower crane foundation structure.

[0034] Reference Figure 1 and Figure 2 The basement tower crane foundation structure includes a mounting platform 1 with a circular cross-section. A plurality of leveling components are evenly arranged on the mounting platform 1. The mounting platform 1 is also provided with a detection component 4 for detecting whether it is tilted.

[0035] When the detection component 4 detects that the installation platform 1 is tilted, the worker can adjust the horizontality of the installation platform 1 through the leveling component at the corresponding position according to the tilt direction of the installation platform 1, thereby reducing the possibility that the tilt of the tower crane foundation structure will affect the construction project.

[0036] Reference Figure 2 The detection component 4 includes a detection cylinder 41 bolted to the mounting platform 1, and a sensing ball 42 is suspended at the center of the detection cylinder 41 through a pull wire 43. A plurality of proximity switches 44 are uniformly threadedly connected to the inner wall of the detection cylinder 41, and the plurality of proximity switches 44 are electrically connected to the control system.

[0037] When the installation platform 1 is horizontal, the sensing ball 42 is outside the sensing range of all proximity switches 44. When the installation platform 1 tilts, the pull wire 43 remains vertical under the action of the gravity of the sensing ball 42, and the distance between the sensing ball 42 and the multiple proximity switches 44 changes.

[0038] The sensing end of the proximity switch 44 can detect the sensing ball 42 , so that the worker can clearly understand whether the installation platform 1 is tilted and the tilt direction through the control system, so as to subsequently level the installation platform 1 .

[0039] Reference Figure 3 and Figure 4 The leveling assembly includes a threaded rod 21 that slides vertically through the mounting platform 1. The threaded rod 21 is located above the mounting platform 1 and is threadedly connected to a nut 22. The threaded rod 21 is located below the mounting platform 1 and is circumferentially hinged with multiple soil plates 23.

[0040] The leveling assembly also includes a plurality of vertically arranged support rods 24 , one support rod 24 corresponds to one aggregate plate 23 , the top end of the support rod 24 is fixedly connected to the lower surface of the mounting platform 1 , and the bottom end thereof is slidably and rotatably engaged with the corresponding aggregate plate 23 .

[0041] Reference Figure 3 and Figure 4 A pulling assembly 3 for pulling the threaded rod 21 is movably provided on the mounting platform 1. The pulling assembly 3 includes a mounting seat 31, on which a hydraulic cylinder 32 is bolted. The piston rod of the hydraulic cylinder 32 faces downward and is used to be connected to the top flange of the threaded rod 21.

[0042] The worker connects the piston rod of the hydraulic cylinder 32 to the top of the threaded rod 21. After that, the piston rod of the hydraulic cylinder 32 retracts, driving the threaded rod 21 to move upward. The threaded rod 21 drives the multiple soil-polymer plates 23 to rotate relative to each other, and the multiple soil-polymer plates 23 are relatively gathered together.

[0043] In this way, the plurality of soil accumulation plates 23 cooperate to achieve soil accumulation, and the reaction force during the accumulation of the soil layer props up the installation platform 1, thereby achieving leveling of the installation platform 1.

[0044] Reference Figure 3 and Figure 4 The worker rotates the nut 22 so that the nut 22 is pressed against the upper surface of the mounting platform 1. After this one leveling assembly action, the worker can use the pulling assembly 3 for other leveling assemblies.

[0045] Reference Figure 3 and Figure 4 The other side of the soil-accumulating plate 23 that is rotated with the threaded rod 21 is bent into an arc shape toward the axis of the threaded rod 21, which is beneficial to improving the soil-accumulating effect of the soil-accumulating plate 23 on the soil layer and enhancing the reaction effect of the soil accumulation on the installation platform 1.

[0046] Reference Figure 3 and Figure 4The mounting base 31 includes a mounting plate 311 and a plurality of legs 312 welded to the other side of the mounting plate 311 relative to the hydraulic cylinder 32. The mounting platform 1 is provided with positioning holes 101 corresponding to the legs 312 and for their insertion.

[0047] The positioning hole 101 serves to position the pulling assembly 3 , thereby facilitating a worker to quickly connect the threaded rod 21 to the piston rod of the hydraulic cylinder 32 .

[0048] Reference Figure 3 and Figure 4 When the mounting platform 1 is leveled, if only one leveling component is in motion, gaps are likely to form between other positions of the mounting platform 1 and the underlying soil layer. For this reason, multiple pulling components 3 are provided on the mounting platform 1.

[0049] Workers can use multiple pulling components 3 to simultaneously level multiple leveling components, which is beneficial to improving the leveling accuracy and stability of the installation platform 1.

[0050] Reference Figure 1 The mounting platform 1 is circumferentially provided with an annular, double-layered water-conducting membrane 5, which slopes downward, away from the axis of the mounting platform 1. During rainfall, the water-conducting membrane 5 diverts rainwater away from the mounting platform 1, preventing the soil beneath the mounting platform from becoming wet and soft, thereby reducing the possibility of the mounting platform 1 tilting.

[0051] Reference Figure 1 A limiting strip 6 is bonded inside the double-layer structure of the water-conducting membrane 5 . The limiting strip 6 is arranged to be tilted downward in a direction away from the axis of the installation platform 1 . A plurality of limiting strips 6 are arranged circumferentially inside the double-layer structure of the water-conducting membrane 5 .

[0052] Reference Figure 1 The annular water-conducting membrane 5 is disconnected and the disconnected part is connected by Velcro. A sliding groove 102 is opened on the circumferential outer wall of the mounting platform 1. Multiple skeletons 7 slide in the sliding groove 102. The longitudinal sections of the skeleton 7 and the sliding groove 102 are both dovetail-shaped.

[0053] One limiting strip 6 corresponds to one frame 7 and is welded together. An installation opening (not shown in the figure) communicating with the sliding groove 102 is also provided on the circumferential outer wall of the installation platform 1. The installation opening is used for installing the frame 7 into the sliding groove 102.

[0054] Reference Figure 1 The setting of the limiting strip 6 limits the water-conducting membrane 5, reducing the possibility of the water-conducting membrane 5 being wrinkled by strong winds. The limiting strip 6 is welded to the frame 7, further reducing the possibility of the water-conducting membrane 5 being blown up.

[0055] The implementation principle of a basement tower crane foundation structure in the embodiment of the present application is as follows:

[0056] When the installation platform 1 is level, all proximity switches 44 cannot detect the sensing ball 42. When the installation platform 1 tilts, the sensing ball 42 moves into the detection range of the proximity switches 44 and is sensed by the proximity switches 44. At this time, the worker can understand the tilt direction of the installation platform 1 based on the position of the proximity switches 44 that sense the sensing ball 42.

[0057] According to the tilt direction of the installation platform 1, the worker connects the piston rod of the hydraulic cylinder 32 to the top flange of the corresponding threaded rod 21, and then slowly retracts the piston rod of the hydraulic cylinder 32, thereby pulling the threaded rod 21 upward. The threaded rod 21 drives the soil-collecting plate 23 to rotate relative to each other. Multiple soil-collecting plates 23 cooperate to pile up the soil layer in a cone shape. During the accumulation of the soil layer, a reverse force will be applied to the installation platform 1, thereby lifting the installation platform 1, thereby achieving the leveling of the installation platform 1.

[0058] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A basement tower crane foundation structure, comprising a mounting platform (1), characterized in that: The mounting platform (1) is provided with a plurality of leveling assemblies circumferentially, the leveling assemblies comprising a threaded rod (21) vertically slidably penetrated on the mounting platform (1), a nut (22) being threadedly connected to the rod body of the threaded rod (21) located above the mounting platform (1), and a plurality of aggregate plates (23) being circumferentially hinged to the rod body of the threaded rod (21) located below the mounting platform (1); the leveling assemblies further comprising a plurality of support rods (24), one support rod (24) corresponding to one aggregate plate (23), the top end of the support rod (24) being provided on the lower surface of the mounting platform (1), and the bottom end thereof being slidably and rotationally matched with the corresponding aggregate plate (23); a pulling assembly (3) for pulling the threaded rod (21) is movably provided on the mounting platform (1).

2. The basement tower crane foundation structure according to claim 1, characterized in that: The drawing assembly (3) comprises a mounting seat (31), a hydraulic cylinder (32) is provided on the mounting seat (31), and the piston rod of the hydraulic cylinder (32) faces downward and is used for detachable connection with the top end of the threaded rod (21).

3. The basement tower crane foundation structure according to claim 2, characterized in that: The mounting seat (31) comprises a mounting plate (311) and a plurality of legs (312) connected to the bottom of the mounting plate (311); the mounting platform (1) is provided with positioning holes (101) corresponding one-to-one to the legs (312) and for inserting the legs.

4. The basement tower crane foundation structure according to claim 2, characterized in that: A plurality of the pulling components (3) are arranged on the installation platform (1).

5. The basement tower crane foundation structure according to claim 1, characterized in that: The soil-polymerizing plate (23) is bent into an arc shape in the direction of the axis of the threaded rod (21) relative to the other side of the plate body that is rotationally matched with the threaded rod (21).

6. The basement tower crane foundation structure according to claim 1, characterized in that: The mounting platform (1) is provided with a detection assembly (4) for detecting whether the mounting platform (1) is tilted. The detection assembly (4) comprises a detection cylinder (41) provided on the mounting platform (1). A sensing ball (42) is suspended at the center of the detection cylinder (41) via a pull line (43). A plurality of proximity switches (44) are uniformly provided circumferentially on the inner side wall of the detection cylinder (41). The plurality of proximity switches (44) are all electrically connected to a control system.

7. The basement tower crane foundation structure according to claim 1, characterized in that: The installation platform (1) is circumferentially provided with a water-conducting membrane (5) in an annular and double-layer structure, and the water-conducting membrane (5) is arranged obliquely downward in a direction away from the axis of the installation platform (1).

8. The basement tower crane foundation structure according to claim 7, characterized in that: A limiting strip (6) is provided in the double-layer structure of the water-conducting membrane (5), and the limiting strip (6) is arranged to be inclined downward in a direction away from the axis of the installation platform (1). A plurality of limiting strips (6) are circumferentially arranged in the double-layer structure of the water-conducting membrane (5).

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