Overhead building base suitable for multi-story building

Abstract

The invention belongs to the technical field of building bases, and discloses an overhead building base suitable for a multi-story building, which comprises a mounting base, a ground inserting mechanism is arranged in an inner cavity of the mounting base, an auxiliary mechanism is arranged on the outer side of the mounting base, and a beating mechanism is arranged at the top of the ground inserting mechanism. A supporting mechanism is arranged in the middle of the mounting base, and the ground inserting mechanism comprises a strong spring. The hardness of the ground is detected through the ground inserting mechanism, when the ground is soft, the contact area with the ground is increased through the auxiliary mechanism, then the stress area is increased, the settling speed of the mounting base and the supporting column on the soft ground is reduced, and auxiliary supporting is conducted on the high position of the supporting column through the supporting telescopic rod and the telescopic sleeve rod; the situation that the supporting columns are not stable enough after the height is increased is avoided, the supporting columns can be laid on the soft ground, and therefore the space of hard land is not occupied.

Description

Technical Field

[0001] The invention belongs to the technical field of building foundations, and in particular relates to an overhead building foundation suitable for multi-story buildings. Background Art

[0002] An elevated building is a building whose bottom floor is elevated, and then an elevated building base is used in the elevated layer to provide elevated support for the building. When the elevated building base is erected on the ground, its supporting columns may sink, causing the supporting columns to drop, thus causing the elevated building to tilt and other safety issues.

[0003] A Chinese invention application with publication number CN114319574B discloses an adjustable overhead building base, including a support frame, wherein a base is fixedly connected to the center position of the upper outer surface of the support frame. By tightening the bolts, the fixing effect of the limit plate is released, thereby achieving the purpose of adjusting the height of the support column, solving the problem of different settlement conditions of each building support column after long-term use.

[0004] The above application solves the problem that it is inconvenient to adjust the height of the support column in the prior art. However, in actual operation, after the height of the support column is adjusted, the distance between the support column and the base will increase, and the top of the support column will become higher relative to the base. Therefore, the distance between the top building of the support column and the base will also increase. The base is used to fix the support column and bear the weight of the building. This leads to a decrease in the stability of the support column after the height of the support column changes, and the above application can only take countermeasures after settlement occurs, and cannot slow down the settlement from the beginning. Summary of the invention

[0005] The object of the present invention is to provide an overhead building foundation suitable for multi-story buildings to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an overhead building foundation suitable for multi-story buildings, comprising a mounting base, an inner cavity of the mounting base is provided with a ground insertion mechanism, an outer side of the mounting base is provided with an auxiliary mechanism, a top of the ground insertion mechanism is provided with a knocking mechanism, and a middle part of the mounting base is provided with a supporting mechanism; The ground insertion mechanism includes a strong spring, the strong spring is fixedly connected to the top of the inner cavity of the mounting base, the bottom of the strong spring is fixedly connected to a descending drill tube, the bottom of the inner cavity of the mounting base is slidably connected to a sliding baffle, the sliding baffle is in contact with the bottom of the descending drill tube, the bottom of the mounting base is fixedly connected to a spring assembly, the top of the spring assembly is fixedly connected to a locking rod, the top of the descending drill tube is plugged with a descending rod on one side close to the locking rod, and the locking rod is located on the moving path of the descending rod; The auxiliary mechanism includes a pair of support plates 1 and 2, wherein the support plates 1 and 2 are movably connected to the four side surfaces of the mounting base respectively, the support plates 1 and 2 are fixedly connected with a ring on one side close to the locking rod, the locking rod is inserted in the inner cavity of the ring, the top ends of the support plates 1 and 2 are fixedly connected with a fixing seat, the inner cavity of the fixing seat is hinged with a supporting telescopic rod, the surface of the supporting telescopic rod is movably sleeved with a telescopic sleeve rod, the inner cavity of the telescopic sleeve rod is fixedly connected with a coil spring, the center of the coil spring is fixedly connected with a pawl, the top of the supporting telescopic rod is fixedly connected with a ratchet bar, the ratchet bar and the pawl are clamped, and the end of the telescopic sleeve rod away from the fixed seat is hinged with a movable seat.

[0007] Preferably, the support mechanism includes a support column, which is inserted at the center of the mounting base, a limiting hole is provided at the bottom of the support column, a threaded rod is engaged in the middle of the mounting base, and the upper end of the support column is fixedly connected with a support ring, which is located above the mounting base and below the movable seat. Preferably, the movable seat is threadedly connected to the top of the support column, the bottom end of the supporting telescopic rod and the top end of the telescopic sleeve rod are both provided with hinge rings, the supporting telescopic rod is hinged to the fixed seat through the hinge ring, and the telescopic sleeve rod is hinged to the movable seat through the hinge ring.

[0008] Preferably, a circular hole is opened in the middle of the support plate 1, the threaded rod is located in the circular hole, and the threaded rod is inserted into the inner cavity of the limiting hole.

[0009] Preferably, a guide rod is fixedly connected to the top end of the descending drill tube, the top of the guide rod passes through the mounting base and is located above the mounting base, and the guide rod is located at the center of the inner cavity of the strong spring.

[0010] Preferably, the spring assembly consists of a return spring and a damping telescopic rod, the damping telescopic rod is located at the center of the inner cavity of the return spring, the return spring and the damping telescopic rod are fixedly connected to the mounting base, and the top of the return spring and the damping telescopic rod are fixedly connected to the bottom of the locking rod.

[0011] Preferably, a rectangular groove is provided at a position of the mounting base close to the locking rod, and a side of the bottom of the locking rod close to the mounting base passes through the rectangular groove and is located in the inner cavity of the mounting base.

[0012] Preferably, the knocking mechanism includes a clamping ring, which is fixedly connected to the top of the guide rod, and the inner cavity of the clamping ring is clamped with a knocking plate, and a clamping groove is provided at the bottom of the knocking plate, and the knocking plate is clamped with the clamping ring through the clamping groove, and the bottom end of the knocking plate is fixedly connected to a water retaining rod, and the bottom end of the descending drill tube is fixedly connected to a water inlet cylinder, and the bottom end of the water retaining rod is attached to the top of the inner cavity of the water inlet cylinder, and the bottom end of the water inlet cylinder is fixedly connected to a water outlet pipe, and the bottom of the water outlet pipe is fixedly connected to a one-way water outlet valve.

[0013] Preferably, the water retaining rod is fixedly connected to a limiting plate at the top of the inner cavity of the descending drill barrel, a rectangular plate is fixedly connected to the top of the inner cavity of the descending drill barrel, a tension spring is fixedly connected to the side of the rectangular plate away from the limiting plate, one end of the descending rod located in the inner cavity of the descending drill barrel is fixedly connected to the tension spring, and one end of the descending rod away from the locking rod passes through the rectangular plate and fits with the limiting plate.

[0014] The beneficial effects of the present invention are as follows: The present invention detects the hardness of the ground by means of a ground-inserting mechanism, and when the ground is soft, increases the contact area with the ground by means of an auxiliary mechanism, thereby increasing the force-bearing area and slowing down the settling speed of the installation base and the support column on the softer ground, and performs auxiliary support on the height of the support column by means of a supporting telescopic rod and a telescopic sleeve rod, thereby preventing the support column from being unstable after being raised in height, and can be laid on the softer ground without occupying space on hard ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection of the lowering drill tube of the structure of the present invention; Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 This is a schematic diagram of the connection between the strong spring and the base of the structure of the present invention; Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle; Figure 6 For the present invention Figure 4 The enlarged schematic diagram at C in the middle; Figure 7 This is a schematic diagram of the connection between the strong spring and the base of the structure of the present invention; Figure 8 For the present invention Figure 7 The enlarged schematic diagram at D in the middle; Fig. 9 This is a schematic diagram of the connection between the threaded rod and the limiting hole of the structure of the present invention; Fig.10This is a schematic diagram of the connection of the telescopic rods supporting the structure of the present invention; Fig.11 For the present invention Fig.10 Enlarged schematic diagram at point E in the middle.

[0016] In the figure: 1. mounting base; 2. ground insertion mechanism; 21. strong spring; 22. descending drill tube; 23. sliding baffle; 24. guide rod; 25. descending rod; 26. spring assembly; 261. return spring; 262. damping telescopic rod; 27. locking rod; 271. rectangular groove; 28. collar; 3. auxiliary mechanism; 31. support plate 1; 32. support plate 2; 33. coil spring; 34. telescopic sleeve rod; 35. Fixed seat; 36. Support telescopic rod; 361. Articulated ring; 37. Ratchet bar; 38. Ratchet pawl; 39. Movable seat; 4. Beating mechanism; 41. Snap ring; 42. Beating plate; 43. Slot; 44. Water retaining rod; 45. Water inlet cylinder; 46. Water outlet pipe; 47. One-way water outlet valve; 48. Limiting plate; 49. Extension spring; 491. Rectangular plate; 5. Support mechanism; 51. Support column; 52. Limiting hole; 53. Threaded rod; 54. Support ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example like Figures 1 to 11 As shown, an embodiment of the present invention provides an overhead building foundation suitable for multi-story buildings, including a mounting base 1, a ground insertion mechanism 2 is provided in the inner cavity of the mounting base 1, an auxiliary mechanism 3 is provided on the outer side of the mounting base 1, a knocking mechanism 4 is provided on the top of the ground insertion mechanism 2, and a supporting mechanism 5 is provided in the middle of the mounting base 1; The ground insertion mechanism 2 includes a strong spring 21, which is fixedly connected to the top of the inner cavity of the mounting base 1, and a descending drill tube 22 is fixedly connected to the bottom of the strong spring 21. A sliding baffle 23 is slidably connected to the bottom of the inner cavity of the mounting base 1, and the sliding baffle 23 fits the bottom of the descending drill tube 22. A spring assembly 26 is fixedly connected to the bottom of the mounting base 1, and a locking rod 27 is fixedly connected to the top of the spring assembly 26. A descending rod 25 is inserted on one side of the top of the descending drill tube 22 close to the locking rod 27, and the locking rod 27 is located on the moving path of the descending rod 25; The auxiliary mechanism 3 includes a pair of support plates 1 31 and 2 32, which are movably connected to the four sides of the mounting base 1 respectively, and the sides of the support plates 1 31 and 2 32 close to the locking rod 27 are fixedly connected with a collar 28, and the locking rod 27 is inserted into the inner cavity of the collar 28, and the tops of the support plates 1 31 and 2 32 are fixedly connected with a fixing seat 35, and the inner cavity of the fixing seat 35 is hinged with a supporting telescopic rod 36, and the surface of the supporting telescopic rod 36 is movably sleeved with a telescopic sleeve rod 34, and the inner cavity of the telescopic sleeve rod 34 is fixedly connected with a coil spring 33, and a pawl 38 is fixedly connected at the center of the coil spring 33, and a ratchet bar 37 is fixedly connected to the top of the supporting telescopic rod 36, and the ratchet bar 37 and the pawl 38 are clamped, and the end of the telescopic sleeve rod 34 away from the fixed seat 35 is hinged with a movable seat 39.

[0019] The supporting mechanism 5 includes a supporting column 51, which is inserted in the center of the mounting base 1. A limiting hole 52 is provided at the bottom of the supporting column 51. A threaded rod 53 is engaged in the middle of the mounting base 1. A supporting ring 54 is fixedly connected to the upper end of the supporting column 51. The supporting ring 54 is located above the mounting base 1 and below the movable seat 39. The movable seat 39 is threadedly connected to the top of the support column 51, and the bottom end of the supporting telescopic rod 36 and the top end of the telescopic sleeve rod 34 are both provided with a hinge ring 361. The supporting telescopic rod 36 is hinged to the fixed seat 35 through the hinge ring 361, and the telescopic sleeve rod 34 is hinged to the movable seat 39 through the hinge ring 361.

[0020] A circular hole is opened in the middle of the supporting plate 1 31 , and the threaded rod 53 is located in the circular hole. The threaded rod 53 is inserted into the inner cavity of the limiting hole 52 .

[0021] The top of the descending drill tube 22 is fixedly connected with a guide rod 24 . The top of the guide rod 24 passes through the mounting base 1 and is located above the mounting base 1 . The guide rod 24 is located at the center of the inner cavity of the strong spring 21 .

[0022] The spring assembly 26 consists of a return spring 261 and a damping telescopic rod 262. The damping telescopic rod 262 is located at the center of the inner cavity of the return spring 261. The return spring 261 and the damping telescopic rod 262 are fixedly connected to the mounting base 1. The top of the return spring 261 and the damping telescopic rod 262 are fixedly connected to the bottom of the locking rod 27.

[0023] A rectangular groove 271 is formed at a position of the mounting base 1 close to the locking rod 27 . A side of the bottom of the locking rod 27 close to the mounting base 1 passes through the rectangular groove 271 and is located in the inner cavity of the mounting base 1 .

[0024] It should be noted that this base is suitable for multi-story buildings with wooden or steel structures.

[0025] In this embodiment, the inner cavity of the descending drill tube 22 is pre-filled with water, and then the mounting base 1 is moved to the specified position, and the support column 51 is inserted into the ground through the center of the mounting base 1, and then the threaded rod 53 is passed through the support plate 31 and screwed into the inner cavity of the mounting base 1, and inserted into the inner cavity of the limiting hole 52 to fix the position of the support column 51. After the position of the support column 51 is fixed, threaded holes are then punched on the surfaces of the movable seat 39 and the support column 51, and then the movable seat 39 is threadedly connected through the threaded holes on the surface of the support column 51 using screws; Then the sliding baffle 23 is pulled out, and at this time, the strong spring 21 loses the limit of the sliding baffle 23, stretches and releases a strong thrust to drive the descending drill tube 22 to insert into the ground. If the ground is soft, the descending drill tube 22 can be directly inserted into the ground, and then drives the descending rod 25 to descend. When the descending rod 25 descends, it contacts the locking rod 27, thereby driving the locking rod 27 to descend, and the locking rod 27 is pulled out of the inner cavity of the collar 28, so that the support plate 1 31 and the support plate 2 32 lose the limit of the locking rod 27, rotate and fall, and are laid on the ground, and through the support extension The retracted rod 36 is self-lockingly fixed so that the support plate 1 31 and the support plate 2 32 are in contact with the ground, so that when the installation base 1 and the support column 51 are installed on the ground, after the lowered drill tube 22 is determined to be on a softer ground, the support plate 1 31 and the support plate 2 32 are driven to fall and be laid on the ground, thereby increasing the contact area with the ground by increasing the support plate 1 31 and the support plate 2 32, so that the installation base 1, the support plate 1 31, and the support plate 2 32 can be evenly stressed, thereby slowing down the sinking speed of the installation base 1 and the support column 51 on the softer ground; Moreover, the building and the installation base 1 will form an overhead layer. Since the harder ground is available for people to walk on, the overhead layer utilization rate is high. Moreover, on the harder ground, the installation base 1 and the support mechanism 5 have a very slow settling speed. Therefore, the support plate 1 31 and the support plate 2 32 are not used to avoid occupying a larger ground area and affecting people's walking. On the softer ground, this area cannot be used. Therefore, the use of the support plate 1 31 and the support plate 2 32 on the softer ground will not affect the use of this area. When the support plate 1 31 and the support plate 2 32 are laid on the ground, the supporting telescopic rod 36 is pulled out from the inner cavity of the telescopic sleeve rod 34 through the fixing seat 35, so that the total length of the telescopic sleeve rod 34 and the supporting telescopic rod 36 is extended, and the telescopic sleeve rod 34 and the supporting telescopic rod 36 can only be extended by the clamping of the ratchet bar 37 and the pawl 38. If the telescopic sleeve rod 34 and the supporting telescopic rod 36 are to be retracted, the coil spring 33 has been retracted to the minimum state, and the pawl 38 can only swing toward the top of the telescopic sleeve rod 34 with the coil spring 33 as the axis, and cannot swing toward the direction of the ratchet bar 37 with the coil spring 33 as the axis, so the telescopic sleeve rod 34 and the supporting telescopic rod 36 cannot be retracted; When a certain position sinks, the jack is placed between the corresponding support ring 54 and the mounting base 1, and then the threaded rod 53 is screwed to pull the threaded rod 53 out of the inner cavity of the limiting hole 52, and then the support column 51 is pushed upward by the jack, thereby increasing the distance between the support ring 54 and the mounting base 1, so that the support ring 54 is increased relative to the mounting base 1. At this time, the self-locking of the supporting telescopic rod 36 and the telescopic sleeve rod 34 is used to auxiliary support the high position of the support column 51, so as to avoid the situation that the support column 51 is not stable enough after the support column 51 is increased relative to the mounting base 1 after sinking; After the position of the support column 51 is adjusted, the threaded rod 53 is screwed into the inner cavity of the mounting base 1 and inserted into the inner cavity of the limiting hole 52 to limit and lock the support column 51 .

[0026] like Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, an embodiment of the present invention provides an overhead building base suitable for multi-story buildings, wherein the striking mechanism 4 includes a clamping ring 41, which is fixedly connected to the top of the guide rod 24, a striking plate 42 is clamped in the inner cavity of the clamping ring 41, a clamping groove 43 is provided at the bottom of the knocking plate 42, the knocking plate 42 is clamped with the clamping ring 41 through the clamping groove 43, a water retaining rod 44 is fixedly connected to the bottom end of the knocking plate 42, a water inlet cylinder 45 is fixedly connected to the bottom end of the descending drill tube 22, the bottom end of the water retaining rod 44 is fitted to the top of the inner cavity of the water inlet cylinder 45, the bottom end of the water inlet cylinder 45 is fixedly connected to a water outlet pipe 46, and the bottom of the water outlet pipe 46 is fixedly connected to a one-way water outlet valve 47.

[0027] The water-retaining rod 44 is fixedly connected to the limit plate 48 at the top of the inner cavity of the descending drill tube 22, and a rectangular plate 491 is fixedly connected to the top of the inner cavity of the descending drill tube 22. A tension spring 49 is fixedly connected to the side of the rectangular plate 491 away from the limit plate 48. One end of the descending rod 25 located in the inner cavity of the descending drill tube 22 is fixedly connected to the tension spring 49, and one end of the descending rod 25 away from the locking rod 27 passes through the rectangular plate 491 and fits with the limit plate 48.

[0028] In this embodiment, after the sliding baffle 23 is pulled out from below the descending drill tube 22, if the ground is hard, the descending drill tube 22 cannot be inserted into the ground by the thrust of the strong spring 21. Then, the striking plate 42 is hammered by an external device or manually to separate the clamping ring 41 and the clamping groove 43, so that the striking plate 42 descends after being hammered. After the knocking plate 42 descends, it drives the water retaining rod 44 to descend, and the water retaining rod 44 descends and drives the limit plate 48 to descend and separate from the descending rod 25. At this time, the thrust of the extension spring 49 drives the descending rod 25 to move in the direction of the rectangular plate 491, so that the descending rod 25 is pushed into the inner cavity of the descending drill tube 22. The water retaining rod 44 descends in the inner cavity of the water inlet cylinder 45. At this time, the lowering drill tube 22 is connected with the inner cavity of the water inlet cylinder 45. The water in the inner cavity of the lowering drill tube 22 enters the water outlet pipe 46 from the water inlet cylinder 45, passes through the one-way water outlet valve 47, and flows out of the water outlet pipe 46 to the ground. The one-way water outlet valve 47 prevents soil from entering the upper part of the water outlet pipe 46 to cause blockage. After the ground is softened, the drill tube 22 is hammered into the ground, so that when encountering harder ground, the ground can be moistened with water to make the hard soil soft, which is conducive to the entry of the drill tube 22 into the ground. The drill tube 22 is then used to assist in fixing the mounting base 1, and then the staff stably installs the mounting base 1 between the ground.

[0029] Working principle: First, water is filled into the inner cavity of the descending drill tube 22 so that the clamping ring 41 is clamped in the inner cavity of the clamping groove 43. After the mounting base 1 is moved to the specified position, the support column 51 is installed to the ground through the mounting base 1, and the support column 51 is locked by screwing the threaded rod 53 through the limit hole 52, and the movable seat 39 is connected to the support column 51. Then, the sliding baffle 23 is pulled out. When the sliding baffle 23 is separated from the bottom of the descending drill tube 22, the strong spring 21 is stretched. The strong elasticity is released to drive the descending drill tube 22 to penetrate into the ground. If the ground is soft, the descending drill tube 22 descends and penetrates into the ground. When the descending drill tube 22 descends, it drives the descending rod 25 to contact the locking rod 27, and presses the locking rod 27 downward, driving the locking rod 27 to leave the inner cavity of the collar 28. At this time, the support plate 1 31 and the support plate 2 32 lose the limit of the locking rod 27 and fall down by their own gravity, so that the support plate 1 31 and the support plate 2 32 are away from the side of the mounting base 1 and contact the ground; When the support plate 1 31 and the support plate 2 32 fall down, the total length of the telescopic sleeve rod 34 and the supporting telescopic rod 36 is extended, and the ratchet bar 37 and the pawl 38 are engaged, so that the supporting telescopic rod 36 and the telescopic sleeve rod 34 cannot be shortened after being extended, thereby limiting and locking the support plate 1 31 and the support plate 2 32; If the ground is hard, the strong spring 21 cannot penetrate into the ground after losing the limit of the sliding baffle 23, and then the striking plate 42 is hammered by external hammering, and the striking plate 42 moves downward, and drives the clamping ring 41 and the clamping groove 43 to separate, and then the striking plate 42 drives the water retaining rod 44 to descend in the inner cavity of the water inlet cylinder 45 when it descends, so that the inner cavity of the descending drill tube 22 and the water inlet cylinder 45 are connected, and the water in the inner cavity of the descending drill tube 22 is discharged from the water outlet pipe 46 through the one-way water outlet valve 47 and flows into the ground. After the water moistens and softens the ground below the descending drill tube 22, the striking plate 42 is hammered again, so that the striking plate 42 is hammered into the ground to assist in fixing the mounting base 1; When the water retaining rod 44 descends, the limit plate 48 is driven to descend, thereby driving the limit plate 48 to separate from the descending rod 25. At this time, the tension of the extension spring 49 drives the descending rod 25 to move in the direction of the descending drill tube 22, so that the descending drill tube 22 no longer contacts the locking rod 27 when descending. Then the staff stably installs the installation base 1 between the ground; When settlement occurs, the jack is placed between the support ring 54 and the mounting base 1, and then the threaded rod 53 is screwed to pull it out from the inner cavity of the limiting hole 52. The support ring 54 is then pushed by the jack to lift the support column 51 upward as a whole. At this time, the distance between the support ring 54 and the mounting base 1 will increase. When the support column 51 moves upward, the total length of the supporting telescopic rod 36 and the telescopic sleeve rod 34 will be extended. When the support column 51 is lifted to the specified position, the threaded rod 53 is screwed in to limit and lock the support column 51.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An overhead building foundation suitable for multi-story buildings, comprising a mounting base (1), characterized in that: The inner cavity of the mounting base (1) is provided with a ground insertion mechanism (2), the outer side of the mounting base (1) is provided with an auxiliary mechanism (3), the top of the ground insertion mechanism (2) is provided with a knocking mechanism (4), and the middle part of the mounting base (1) is provided with a supporting mechanism (5); The ground insertion mechanism (2) comprises a strong spring (21), wherein the strong spring (21) is fixedly connected to the top of the inner cavity of the mounting base (1), the bottom of the strong spring (21) is fixedly connected to a descending drill tube (22), the bottom of the inner cavity of the mounting base (1) is slidably connected to a sliding baffle (23), the sliding baffle (23) is in contact with the bottom of the descending drill tube (22), the bottom of the mounting base (1) is fixedly connected to a spring assembly (26), the top of the spring assembly (26) is fixedly connected to a locking rod (27), a descending rod (25) is inserted on the side of the top of the descending drill tube (22) close to the locking rod (27), and the locking rod (27) is located on the moving path of the descending rod (25); The auxiliary mechanism (3) comprises a pair of support plates 1 (31) and 2 (32), wherein the support plates 1 (31) and 2 (32) are movably connected to four side surfaces of the mounting base (1), and the sides of the support plates 1 (31) and 2 (32) close to the locking rod (27) are fixedly connected to a collar (28), and the locking rod (27) is inserted into the inner cavity of the collar (28). The top ends of the support plates 1 (31) and 2 (32) are fixedly connected to a fixing seat (35), and the fixing seat (35) is fixedly connected to the fixing seat. The inner cavity of the seat (35) is hingedly connected to a supporting telescopic rod (36), the surface of the supporting telescopic rod (36) is movably sleeved with a telescopic sleeve rod (34), the inner cavity of the telescopic sleeve rod (34) is fixedly connected to a coil spring (33), the center of the coil spring (33) is fixedly connected to a pawl (38), the top of the supporting telescopic rod (36) is fixedly connected to a ratchet bar (37), the ratchet bar (37) and the pawl (38) are snap-connected, and the end of the telescopic sleeve rod (34) away from the fixed seat (35) is hingedly connected to a movable seat (39).

2. The overhead building foundation suitable for multi-story buildings according to claim 1, characterized in that: The support mechanism (5) comprises a support column (51), the support column (51) is inserted at the center of the mounting base (1), a limiting hole (52) is provided at the bottom of the support column (51), a threaded rod (53) is meshed in the middle of the mounting base (1), and a support ring (54) is fixedly connected to the upper end of the support column (51), and the support ring (54) is located above the mounting base (1) and below the movable seat (39).

3. The overhead building foundation suitable for multi-story buildings according to claim 2, characterized in that: The movable seat (39) is threadedly connected to the top of the support column (51); the bottom end of the supporting telescopic rod (36) and the top end of the telescopic sleeve rod (34) are both provided with a hinge ring (361); the supporting telescopic rod (36) is hinged to the fixed seat (35) via the hinge ring (361); and the telescopic sleeve rod (34) is hinged to the movable seat (39) via the hinge ring (361).

4. The overhead building foundation suitable for multi-story buildings according to claim 2, characterized in that: A circular hole is provided in the middle of the support plate 1 (31), the threaded rod (53) is located in the circular hole, and the threaded rod (53) is inserted into the inner cavity of the limiting hole (52).

5. The overhead building foundation suitable for multi-story buildings according to claim 2, characterized in that: The top end of the descending drill tube (22) is fixedly connected to a guide rod (24), the top of the guide rod (24) passes through the mounting base (1) and is located above the mounting base (1), and the guide rod (24) is located at the center of the inner cavity of the strong spring (21).

6. The overhead building foundation suitable for multi-story buildings according to claim 2, characterized in that: The spring assembly (26) is composed of a return spring (261) and a damping telescopic rod (262); the damping telescopic rod (262) is located at the center of an inner cavity of the return spring (261); the return spring (261) and the damping telescopic rod (262) are fixedly connected to a mounting base (1); and the tops of the return spring (261) and the damping telescopic rod (262) are fixedly connected to the bottom of a locking rod (27).

7. The overhead building foundation suitable for multi-story buildings according to claim 2, characterized in that: A rectangular groove (271) is provided on the mounting base (1) near the locking rod (27); a side of the bottom of the locking rod (27) near the mounting base (1) passes through the rectangular groove (271) and is located in the inner cavity of the mounting base (1).

8. The overhead building foundation suitable for multi-story buildings according to claim 2, characterized in that: The knocking mechanism (4) comprises a clamping ring (41), the clamping ring (41) is fixedly connected to the top of the guide rod (24), the inner cavity of the clamping ring (41) is clamped with a knocking plate (42), the bottom of the knocking plate (42) is provided with a clamping groove (43), the knocking plate (42) is clamped with the clamping ring (41) through the clamping groove (43), the bottom end of the knocking plate (42) is fixedly connected to a water retaining rod (44), the bottom end of the descending drill tube (22) is fixedly connected to a water inlet tube (45), the bottom end of the water retaining rod (44) is fitted to the top of the inner cavity of the water inlet tube (45), the bottom end of the water inlet tube (45) is fixedly connected to a water outlet pipe (46), and the bottom of the water outlet pipe (46) is fixedly connected to a one-way water outlet valve (47).

9. The overhead building foundation applicable to multi-story buildings according to claim 8, characterized in that: The top of the water retaining rod (44) located in the inner cavity of the descending drill tube (22) is fixedly connected to a limiting plate (48), the top of the inner cavity of the descending drill tube (22) is fixedly connected to a rectangular plate (491), the side of the rectangular plate (491) away from the limiting plate (48) is fixedly connected to a tension spring (49), one end of the descending rod (25) located in the inner cavity of the descending drill tube (22) is fixedly connected to the tension spring (49), and one end of the descending rod (25) away from the locking rod (27) passes through the rectangular plate (491) and fits with the limiting plate (48).

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