A tower crane base connection structure combined with a raft

Abstract

The application discloses a tower crane base joint structure combined with a raft, and belongs to the technical field of raft and tower crane base, which is provided with a concrete sink for settlement pouring, and a raft body is poured on the upper surface of the concrete sink; the joint structure comprises: a diagonal reinforcing steel bar installed on the middle side of the inner surface of the raft body, and a straight reinforcing steel bar installed on the upper side of the middle side of the inner surface of the raft body. The tower crane base joint structure combined with the raft is provided with the diagonal reinforcing steel bar and the straight reinforcing steel bar for the overall assembly of the raft body, and is used for welding a base and a reinforcing steel mesh frame respectively, and the reinforcing steel mesh frame is assembled in a nested mode with a bent reinforcing steel bar and a tower base, so that the stability of the tower base during pouring of concrete is controlled, and the stability of a lifting structure is controlled in cooperation with sodium thiosulfate supersaturated solution and pure water extruded by an inner baffle, and the two kinds of materials are mixed to absorb heat, so that the heat absorption is used for cooling during pouring of the concrete, the condensation degree is improved, and the influence of vibration on the tower base support is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of raft and tower crane base, in particular to a tower crane base connection structure combined with raft. BACKGROUND

[0002] The connection structure of the tower crane base and the raft body can ensure the stability of the tower crane during use. During the manufacture of the connection structure, different types of bundled steel bars are connected with the edge steel bars of the raft body, and concrete is poured to form a whole. The tower crane base is built-in in the steel bars to improve the stability between the tower crane base and the raft body. However, it is inconvenient to control the stable and flat assembly between the raft body and the tower crane base during use, which can easily cause the separation between the tower crane base and the raft body.

[0003] In order to overcome the above defects, the prior art (application number CN202010032454.2, application date 2020-01-13 Chinese patent application) a kind of basement raft body foundation construction method with tower crane foundation, by setting up steel pipe column on tower crane foundation, raft body foundation construction to tower crane place, can be completed once, so that the raft body foundation in the tower crane installation area does not need to reserve area like conventional, and carry out secondary closing, solve the construction quality problem such as tower crane reserved area steel bar binding does not meet specification, pure water treatment is not convenient and secondary repair hole;There is prior art (application number CN202221229809.8, application date 2022-05-18 Chinese patent application) plate type tower crane foundation construction structure combined with raft body, by dividing out tower crane foundation pouring area in the raft body foundation pouring area of the range of underground garage raft body structure construction joint, form plate type tower crane foundation, the tower crane foundation is used after completion can be directly used as part of the raft body foundation, no need to secondary construction the raft body foundation on the tower crane foundation, equivalent to using part of raft body foundation to strengthen to get tower crane foundation, can greatly reduce the cost of the tower crane foundation, reduce engineering quantity;And prior art (application number CN202222083247.7, application date 2022-08-09 Chinese patent application) a kind of tower crane foundation and raft body foundation integrated structure, by integrally setting tower crane foundation below raft body foundation, it is favorable to guarantee the force of the bottom of tower crane joint, and can be used as part of raft body;Through the setting of the inner muscle of raft body, it is favorable to reinforce the connection between tower crane support and raft body foundation, and further guarantee the stress of the top of raft body foundation;Although the prior art can complete the assembly of raft body and tower crane base, in the working process, since a large amount of concrete needs to be poured, it is easy to cause the inclination between tower crane base and raft body, affect the stability of tower crane base assembly, and cause damage between tower crane base and raft body, and when the concrete is vibrated, it is easy to cause the contact vibration of tower foundation, affect the stability of tower foundation support.

[0004] In view of the above problems, it is urgent to make innovative design on the basis of the original tower crane base connection structure combined with raft. SUMMARY

[0005] The purpose of the present application is to provide a tower crane base connection structure combined with raft, to solve the problem of inclination between tower crane base and raft body, affect the stability of tower crane base assembly, and cause damage between tower crane base and raft body, and cause contact vibration of tower foundation, affect the stability of tower foundation support.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a tower crane base connection structure combined with a raft, which is provided with a concrete sink for settlement pouring, and the upper surface of the concrete sink is poured with a raft body; the structure comprises: a diagonal reinforcing bar installed on the middle side of the inner surface of the raft body, a straight reinforcing bar installed on the upper middle side of the inner surface of the raft body, a reinforcing mesh frame welded on the outer surface of the straight reinforcing bar, a curved reinforcing bar welded on the upper surface of the reinforcing mesh frame, and a diagonal support mechanism provided on the curved reinforcing bar; and a control bin welded on the base assembled by the concrete sink, wherein the outer surface of the control bin is rotationally connected with a winding member, and the winding member is provided with a winding and extruding mechanism.

[0007] Preferably, the diagonal reinforcing bar, the raft body and the straight reinforcing bar form an integrated structure, the straight reinforcing bar and the reinforcing mesh frame form a welded structure, and the reinforcing mesh frame and the concrete sink form a nested structure.

[0008] Preferably, the diagonal support mechanism comprises a tower base welded on the lower side of the outer surface of the curved reinforcing bar, a tower node installed on the upper surface of the tower base, a support plate installed on the lower surface of the tower base, a telescopic rod nestedly connected with the lower surface of the support plate, a telescopic assembly welded on the lower surface of the telescopic rod, a base installed on the lower surface of the telescopic assembly, the base installed on the lower side of the inner surface of the concrete sink, the side of the base welded on the reinforcing mesh frame through the straight reinforcing bar, and the side of the base welded on the raft body through the diagonal reinforcing bar.

[0009] Preferably, the tower base forms a welded structure with the reinforcing mesh frame through the curved reinforcing bar, the tower base and the support plate form a bolt welded structure, the support plate and the telescopic rod form a nested structure, the support plate forms a lifting structure with the base through the telescopic rod and the telescopic assembly, the telescopic assembly is symmetrically arranged about the middle section of the inner surface of the base, the base forms a welded structure with the reinforcing mesh frame through the straight reinforcing bar, and the base forms an integrated structure with the raft body through the diagonal reinforcing bar.

[0010] Preferably, the winding and extruding mechanism comprises a steel wire rope wound on the outer surface of the winding member, a pull plate installed on the lower surface of the steel wire rope, a sealing ring nestedly connected with the outer surface of the pull plate, a nested plate sealingly nestedly connected with the outer surface of the steel wire rope, a nesting member nestedly connected with the outer surface of the nested plate, and same polarity magnet rings respectively nestedly connected between the nesting member and the nested plate.

[0011] Preferably, the winding member and the control bin form a rotary welded structure, the winding member forms a lifting structure with the pull plate through the steel wire rope, the pull plate forms a nested sealing structure with the control bin through the sealing ring, the steel wire rope forms a sliding nested structure with the nesting member through the nested plate, and the nesting member forms a magnetic repulsion centering structure with the nested plate through the same polarity magnet rings.

[0012] Preferably, the upper surface of the pull plate is provided with an elastic pad, the inner surface of the elastic pad is connected with a extrusion bin in a nested mode, the inner surface of the extrusion bin is filled with a sodium thiosulfate supersaturated solution at the lower side and filled with pure water at the upper side, the outer surface of the extrusion bin is provided with a conveying pipe at the upper side, the end of the conveying pipe is provided with an extension assembly, and the outer surface of the conveying pipe is connected with a control bin.

[0013] Preferably, the pull plate and the elastic pad form a nested structure, the elastic pad and the steel wire rope form a nested structure, the elastic pad is made of an elastic material, the elastic pad and the extrusion bin form a protection structure, the extrusion bin and the sodium thiosulfate supersaturated solution and the pure water form a filling structure, the density of the pure water is smaller than that of the sodium thiosulfate supersaturated solution, and the extrusion bin and the extension assembly form a conveying structure through the conveying pipe.

[0014] Preferably, the pull plate and the control bin are elastically connected with a return spring, the lower surface of the pull plate is provided with a foaming agent ring, the inner surface of the control bin is provided with an elastic spike plate at the lower side, a slight gap is left between the spike of the elastic spike plate and the foaming agent ring, and the elastic spike plate and the control bin are elastically connected with a tension spring.

[0015] Preferably, the pull plate and the control bin form an elastic structure through the return spring, the pull plate and the foaming agent ring form an integrated structure, and the control bin and the elastic spike plate form an elastic structure through the tension spring.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] 1. The tower crane base connection structure combined with the raft plate is provided with inclined and straight steel bars for integrally assembling the raft plate body, welding the base and the steel bar net frame, and assembling the tower base with the steel bar net frame and the bent steel bar in a nested mode, so as to control the stability of the tower base during pouring of the concrete, control the stability of the lifting structure with the sodium thiosulfate supersaturated solution and the pure water extruded by the baffle in the control bin, and mix the two materials to absorb heat, so as to reduce the influence of vibration on the tower base support during pouring of the concrete.

[0018] 2. The tower crane base connection structure combined with the raft plate is provided with an inclined support mechanism, which is convenient for stably supporting the tower base assembled by the base through the inclined and straight steel bars, the steel bar net frame and the bent steel bar, and increasing the safety of the tower base support.

[0019] 3. The tower crane base connection structure of the combination raft, be provided with winding extrusion mechanism, facilitate winding steel wire rope, and cooperate with the oppression of the pressing bin of the pull plate, control the flow of the pure water on the upper side of the pressing bin to the telescopic assembly of the delivery pipe assembly, so that the same pressure control tower base horizontal support stability, and cooperate with the use of the nested plate, the same sex magnet ring and the nested piece, improve the stability of the upward pulling of the pull plate; further, through the movement of the pull plate, cooperate with the sealing ring, avoid the bottom of the pressing bin from falling off and leaking, and when pouring concrete, the sodium thiosulfate supersaturated solution and pure water in the vibrating pressing bin react and vibrate to reduce the shaking of the tower base, and the reaction can be used to absorb heat, improve the solidification speed of the concrete outside the control bin, and when the concrete solidifies, the sodium thiosulfate supersaturated solution and pure water can be reacted smoothly, the same pressure control gradually stable of the telescopic rod under the tower base is controlled, to avoid horizontal deviation; further, through the reset spring between the pull plate and the control bin, the stable support can be provided on the pull plate after moving, and the shaking caused by the vibration of the material on the upper part of the pull plate is slowed down, and the pull plate can be controlled smoothly after vibration, so as to control the pressure in the telescopic rod, promote the stable use of the tower base, and when vibrating, the elastic stab plate of the positioning assembly is controlled to shake, the foaming agent ring is pierced, the foaming agent is forced out of the solidification, and the reset spring is used synchronously to control the smooth work of the pull plate. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is concrete sink three-dimensional structure schematic view of the application;

[0021] Figure 2 It is concrete sink half cutaway three-dimensional structure schematic view of the application;

[0022] Figure 3 It is base partial cutaway three-dimensional structure schematic view of the application;

[0023] Figure 4 It is base half cutaway three-dimensional structure schematic view of the application;

[0024] Figure 5 It is control bin partial cutaway three-dimensional structure schematic view of the application;

[0025] Figure 6 It is the pull plate of the application; Figure 5 It is the pull plate of the application;

[0026] Figure 7 It is the pull plate of the application;

[0027] Figure 8 It is the pull plate of the application.

[0028] In the figure: 1, concrete sink; 2, raft body; 3, inclined steel bar; 4, straight steel bar; 5, steel mesh frame; 6, bent steel bar; 7, tower base; 8, tower node; 9, support plate; 10, telescopic rod; 11, telescopic assembly; 12, base; 13, control bin; 14, winding piece; 15, steel wire rope; 16, pull plate; 17, sealing ring; 18, nested plate; 19, same sex magnet ring; 20, nesting piece; 21, elastic pad; 22, extrusion bin; 23, sodium thiosulfate supersaturated solution; 24, pure water; 25, conveying pipe; 26, reset spring; 27, foaming agent ring; 28, elastic thorn plate; 29, tension spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-8 The present application provides a technical solution: a tower crane base connection structure combined with raft, which is provided with a concrete sink 1 for settlement pouring, and the upper surface of the concrete sink 1 is poured with a raft body 2.

[0031] Embodiment one: as Figures 1-3The technical scheme is shown, and the present application provides the following technical scheme: a tower crane base connection structure combined with a raft, which discloses: comprising: a cable-stayed steel bar 3 installed in the middle side of the inner surface of a raft body 2, and a straight-pulled steel bar 4 installed on the upper middle side of the inner surface of the raft body 2, and a steel mesh frame 5 welded on the outer surface of the straight-pulled steel bar 4, and a bent steel bar 6 welded on the upper surface of the steel mesh frame 5, and the bent steel bar 6 being provided with a cable-stayed support mechanism; the cable-stayed steel bar 3, the raft body 2 and the straight-pulled steel bar 4 form an integrated structure, the straight-pulled steel bar 4 and the steel mesh frame 5 form a welded structure, and the steel mesh frame 5 and the concrete sink 1 form a nested structure; the cable-stayed support mechanism comprises a tower base 7 welded on the lower side of the outer surface of the bent steel bar 6, the upper surface of the tower base 7 is installed with a tower node 8, the lower surface of the tower base 7 is installed with a support plate 9, the lower surface of the support plate 9 is nested and connected with an extension rod 10, the lower surface of the extension rod 10 is welded and connected with an extension assembly 11, the lower surface of the extension assembly 11 is installed with a base 12, the base 12 is installed on the lower side of the inner surface of the concrete sink 1, the side of the base 12 is welded on the steel mesh frame 5 through the straight-pulled steel bar 4, and the side of the base 12 is welded and arranged on the raft body 2 through the cable-stayed steel bar 3; the tower base 7 forms a welded structure with the steel mesh frame 5 through the bent steel bar 6, the tower base 7 and the support plate 9 form a bolt welded structure, the support plate 9 and the extension rod 10 form a nested structure, the support plate 9 forms a lifting structure with the base 12 through the extension rod 10 and the extension assembly 11, the extension assembly 11 is symmetrically arranged about the middle section of the inner surface of the base 12, the base 12 forms a welded structure with the steel mesh frame 5 through the straight-pulled steel bar 4, and the base 12 forms an integrated structure with the raft body 2 through the cable-stayed steel bar 3.

[0032] In use, the control base 12 is assembled on the lower middle section of the inner surface of the concrete sink 1, bolted and welded, and the position of the support plate 9 installed on the upper side of the extension rod 10 is adjusted by assembling the extension assembly 11 of the base 12, so that the tower base 7 installed on the support plate 9 is synchronously controlled to be horizontally supported, and the nested structure between the support plate 9 and the extension rod 10 can be adjusted by a small amount of deviation, the lifting adjustment stability is improved, and after the adjustment of the tower base 7 is completed, the steel mesh frame 5 is assembled and welded on the straight-pulled steel bar 4 of the raft body 2, the stable base 12 is welded on the cable-stayed steel bar 3 installed on the raft body 2, the support stability between the raft body 2 and the base 12 is controlled, and the welded assembly of the bent steel bar 6 nested in the steel mesh frame 5 and the tower base 7 further controls the stability of the support of the tower base 7.

[0033] Embodiment two: as Figure 1 , Figure 4 , Figure 5 and Figure 6The technical scheme shown, on the basis of embodiment one, further discloses the lifting adjustment of the tower base 7, and the specific content is as follows: the control bin 13 is welded on the base 12 assembled with the concrete sink 1, the outer surface of the control bin 13 is rotationally connected with the winding piece 14, and the winding piece 14 is provided with a winding and extruding mechanism; the winding and extruding mechanism comprises the steel wire rope 15 wound on the outer surface of the winding piece 14, the lower surface of the steel wire rope 15 is provided with the pull plate 16, the outer surface of the pull plate 16 is nestedly connected with the sealing ring 17, the outer surface of the steel wire rope 15 is sealingly and nestingly connected with the nesting plate 18, the outer surface of the nesting plate 18 is nestedly connected with the nesting piece 20, and the nesting piece 20 and the nesting plate 18 are respectively nestedly connected with the same magnetic ring 19; the winding piece 14 and the control bin 13 constitute a rotating welded structure, the winding piece 14 and the pull plate 16 constitute a lifting structure through the steel wire rope 15, the pull plate 16 and the control bin 13 constitute a nested sealing structure through the sealing ring 17, the steel wire rope 15 and the nesting piece 20 constitute a sliding nesting structure through the nesting plate 18, and the nesting piece 20 and the nesting plate 18 constitute a magnetic repulsion centering structure through the same magnetic ring 19; the upper surface of the pull plate 16 is provided with the elastic pad 21, the inner surface of the elastic pad 21 is nestedly connected with the extruding bin 22, the inner surface of the extruding bin 22 is filled with the sodium thiosulfate supersaturated solution 23 on the lower side, the inner surface of the extruding bin 22 is filled with pure water 24 on the upper side, the outer surface of the extruding bin 22 is provided with the conveying pipe 25 on the upper side, the end of the conveying pipe 25 is provided with the telescopic assembly 11, and the outer surface of the conveying pipe 25 is penetratingly connected with the control bin 13; the pull plate 16 and the elastic pad 21 constitute a nested structure, the elastic pad 21 and the steel wire rope 15 constitute a nested structure, the elastic pad 21 is made of an elastic material, the elastic pad 21 and the extruding bin 22 constitute a protection structure, the extruding bin 22, the sodium thiosulfate supersaturated solution 23 and the pure water 24 constitute a filling structure, the density of the pure water 24 is smaller than that of the sodium thiosulfate supersaturated solution 23, and the extruding bin 22 and the telescopic assembly 11 constitute a conveying structure through the conveying pipe 25.

[0034] When the tower base 7 needs to be adjusted after assembly, the winding part 14 installed in the control bin 13 is rotated through an external driving structure, and the steel wire rope 15 is wound, and the pull plate 16 assembled by the steel wire rope 15 is moved upward in the control bin 13, so that the elastic pad 21 assembled by the pull plate 16 controls the extrusion bin 22 to be pressed, and the pure water 24 in the upper layer of the extrusion bin 22 flows into the telescopic assembly 11 through the conveying pipe 25, and the lifting of the four-corner telescopic rod 10 is controlled synchronously and under pressure, the height stability of the telescopic rod 10 is improved, and the horizontal stability of the tower base 7 is improved. When the pull plate 16 moves, the sealing ring 17 is matched to avoid extrusion damage to the extrusion bin 22 on the upper side of the control bin 13, and the sodium thiosulfate supersaturated solution 23 and the pure water 24 built-in in the extrusion bin 22 are vibrated when the concrete is poured and vibrated, and the tower base 7, the support plate 9 and the control bin 13 are vibrated, the surrounding concrete is vibrated, the sodium thiosulfate supersaturated solution 23 and the pure water 24 are vibrated, the surrounding concrete is heated, and the sodium thiosulfate supersaturated solution 23 and the pure water 24 built-in in the extrusion bin 22 are vibrated. The shaking reaction improves the stability of the tower base 7, and the steel wire rope 15 is prevented from shaking excessively by using the sliding nesting structure of the nested plate 18 and the nested part 20 and the same magnet ring 19 therebetween, and the stability of the telescopic rod 10 is improved.

[0035] As shown in the technical scheme in Embodiment Three, Figure 1 、 Figure 7 and Figure 8 on the basis of Embodiment Two, the stability of the support between the pull plate 16 and the control bin 13 is further disclosed, and the specific content is as follows: The reset spring 26 is elastically connected between the pull plate 16 and the control bin 13, the foaming agent ring 27 is installed on the lower surface of the pull plate 16, the elastic spike plate 28 is installed on the inner surface of the control bin 13, the fine gap is reserved between the spike of the elastic spike plate 28 and the foaming agent ring 27, and the tensile spring 29 is elastically connected between the elastic spike plate 28 and the control bin 13; the pull plate 16 and the control bin 13 constitute an elastic structure through the reset spring 26, the pull plate 16 and the foaming agent ring 27 constitute an integrated structure, and the control bin 13 constitutes an elastic structure through the tensile spring 29 and the elastic spike plate 28.

[0036] When the pull plate 16 extrudes the extrusion chamber 22, the reset spring 26 between the pull plate 16 and the control chamber 13 is matched, the use stability of the extrusion chamber 22 is improved, when the extrusion chamber 22 vibrates in the later period, the vibration is reduced, the foaming agent ring 27 installed on the lower side of the pull plate 16 is contacted with the elastic spike plate 28 and the tension spring 29, the foaming agent ring 27 is pierced, the foaming material is filled in the space between the pull plate 16 and the control chamber 13 on the lower side, and the reaction control of the sodium thiosulfate supersaturated solution 23 and the pure water 24 in the extrusion chamber 22 is promoted, the excessive filling of the foaming material is avoided, the stability of the telescopic rod 10 is controlled, and the horizontal stable support of the tower base 7 is promoted.

[0037] The content not described in detail in the specification belongs to the prior art known to those skilled in the art. Although the embodiments of the present application have been shown and described, it is understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tower crane base connection structure combined with a raft slab, wherein a concrete trough (1) for settlement pouring is provided, and the upper surface of the concrete trough (1) is filled with the raft slab body (2). Its features are, include: Diagonal reinforcing bars (3) are installed on the middle side of the inner surface of the raft body (2), and straight reinforcing bars (4) are installed on the upper side of the inner surface of the raft body (2). A steel mesh frame (5) is welded to the outer surface of the straight reinforcing bars (4), and bent reinforcing bars (6) are welded to the upper surface of the steel mesh frame (5). The bent reinforcing bars (6) are provided with a diagonal support mechanism. The control chamber (13) is welded to the base (12) assembled from the concrete sink (1), and the outer surface of the control chamber (13) is rotatably connected to the winding component (14), and the winding component (14) is provided with a winding and pressing mechanism. The winding and extrusion mechanism includes a steel wire rope (15) wound on the outer surface of the winding member (14), and a pull plate (16) is installed on the lower surface of the steel wire rope (15). A sealing ring (17) is nested on the outer surface of the pull plate (16), and a nesting plate (18) is nested on the outer surface of the steel wire rope (15). A nesting member (20) is nested on the outer surface of the nesting plate (18), and a magnet ring (19) of the same polarity is nested between the nesting member (20) and the nesting plate (18). An elastic pad (21) is installed on the upper surface of the pull plate (16), and an extrusion chamber (22) is nested on the inner surface of the elastic pad (21). The lower side of the inner surface of the extrusion chamber (22) is filled with a sodium thiosulfate supersaturated solution (23), while the upper side of the inner surface of the extrusion chamber (22) is filled with pure water (24). A conveying pipe (25) is installed on the upper side of the outer surface of the extrusion chamber (22), and a telescopic component (11) is installed at the end of the conveying pipe (25). A control chamber (13) is connected through the outer surface of the conveying pipe (25). A return spring (26) is elastically connected between the pull plate (16) and the control chamber (13), and a foaming agent ring (27) is installed on the lower surface of the pull plate (16), and an elastic barb plate (28) is installed on the lower side of the inner surface of the control chamber (13). At the same time, there is a small gap between the barb tip of the elastic barb plate (28) and the foaming agent ring (27), and a tension spring (29) is elastically connected between the elastic barb plate (28) and the control chamber (13).

2. The tower crane base connection structure combined with raft foundation according to claim 1, characterized in that: The inclined steel bar (3) forms an integrated structure with the raft body (2) and the straight steel bar (4), and the straight steel bar (4) forms a welded structure with the steel mesh frame (5), and the steel mesh frame (5) forms a nested structure with the concrete trough (1).

3. The tower crane base connection structure combined with raft foundation according to claim 1, characterized in that: The inclined support mechanism includes a tower base (7) welded to the lower side of the outer surface of the bent steel bar (6), and a tower node (8) is installed on the upper surface of the tower base (7). A support plate (9) is installed on the lower surface of the tower base (7). At the same time, a telescopic rod (10) is nested and connected to the lower surface of the support plate (9). A telescopic component (11) is welded and connected to the lower surface of the telescopic rod (10). A base (12) is installed on the lower surface of the telescopic component (11). The base (12) is installed on the lower side of the inner surface of the concrete sinkhole (1). At the same time, the side of the base (12) is welded to the steel mesh frame (5) by straight steel bar (4). The side of the base (12) is welded to the raft body (2) by inclined steel bar (3).

4. The tower crane base connection structure combined with raft foundation according to claim 3, characterized in that: The tower base (7) is welded to the steel mesh frame (5) by bending steel bars (6), and the tower base (7) is bolted to the support plate (9). The support plate (9) is nested to the telescopic rod (10). The support plate (9) is lifted to the base (12) by the telescopic rod (10) and the telescopic component (11). The telescopic component (11) is symmetrically arranged about the middle section of the inner surface of the base (12). The base (12) is welded to the steel mesh frame (5) by straight steel bars (4), and the base (12) is integrated to the raft body (2) by diagonal steel bars (3).

5. The tower crane base connection structure combined with raft foundation according to claim 1, characterized in that: The winding component (14) and the control chamber (13) form a rotating welded structure, and the winding component (14) forms a lifting structure with the pull plate (16) through the wire rope (15), and the pull plate (16) forms a nested sealing structure with the control chamber (13) through the sealing ring (17). At the same time, the wire rope (15) forms a sliding nested structure with the nested component (20) through the nested plate (18), and the nested component (20) forms a magnetic repulsion centering structure with the nested plate (18) through the same magnetic magnet ring (19).

6. The tower crane base connection structure combined with raft foundation according to claim 1, characterized in that: The pull plate (16) and the elastic pad (21) form a nested structure, and the elastic pad (21) and the wire rope (15) form a nested structure. The elastic pad (21) is made of elastic material. The elastic pad (21) and the extrusion chamber (22) form a protective structure. The extrusion chamber (22) and the sodium thiosulfate supersaturated solution (23) and pure water (24) form a filling structure. The density of pure water (24) is less than that of sodium thiosulfate supersaturated solution (23). The extrusion chamber (22) and the telescopic component (11) form a conveying structure through the conveying pipe (25).

7. The tower crane base connection structure combined with raft foundation according to claim 6, characterized in that: The pull plate (16) forms an elastic structure with the control chamber (13) through the return spring (26), and the pull plate (16) forms an integrated structure with the foaming agent ring (27). The control chamber (13) forms an elastic structure with the elastic spike plate (28) through the tension spring (29).

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