Anti-settlement pile foundation supporting device

Abstract

The invention discloses a pile foundation supporting device for settlement prevention, and relates to the technical field of constructional engineering. The device comprises an upper bearing seat, a lower bearing seat, a strong spring and a bayonet lock mechanism, the bottom of the upper bearing seat is slidably connected with the top of the lower bearing seat. Two ends of the strong spring are respectively fixed at the inner top of the upper bearing seat and the inner bottom of the lower bearing seat; through holes are formed in the peripheral side surfaces of the upper bearing seat and the lower bearing seat; the bayonet lock mechanism comprises two bayonet lock columns, two connecting rods and a settlement triggering column; the ends of the opposite inner sides of the two connecting rods are hinged, and the hinged position is provided with a settlement triggering column in a matched mode. The opposite outer sides of the two connecting rods are each provided with a clamping pin column in a hinged mode. The clamping pin column is in sliding fit with the through hole. Under the action of the upper bearing seat, the lower bearing seat, the strong spring and the bayonet lock mechanism, the reduced height in settlement is compensated to a certain extent, so that the variable quantity of the height difference of the pile foundation is greatly relieved during settlement.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction engineering, and particularly relates to a pile foundation support device for preventing settlement. Background Art

[0002] Ground buildings, such as high-rise buildings, bridges, etc., often use pile foundations as support bases. The bearing capacity of pile foundations usually consists of two parts. One part is the side friction resistance generated by the contact between the soil and the side of the pile foundation, and the other part is the end resistance of the pile foundation generated by the contact between the bottom surface of the pile foundation and the soil.

[0003] When the soil layer under the pile foundation sinks, the supporting force for the pile foundation becomes insufficient, and the pile foundation will also sink successively, resulting in problems such as a decrease in the height of the building above the pile foundation, height difference, uneven stress, cracks, and potential safety hazards. Therefore, the present invention designs a pile foundation support device for preventing settlement. Summary of the Invention

[0004] The purpose of the present invention is to provide a pile foundation support device for preventing settlement, which solves the problem of pile foundation settlement through the action of an upper bearing seat, a lower bearing seat, a strong spring, and a pin mechanism.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a pile foundation support device for preventing settlement, including an upper bearing seat, a lower bearing seat, a strong spring, and a pin mechanism; both the upper bearing seat and the lower bearing seat are cylindrical structures; the bottom of the upper bearing seat is slidably connected to the top of the lower bearing seat; both ends of the strong spring are respectively fixed to the inner top of the upper bearing seat and the inner bottom of the lower bearing seat; through holes are provided on the circumferential sides of the upper bearing seat and the lower bearing seat; the pin mechanism includes two pin columns, two connecting rods, and a settlement trigger column; the ends of the two connecting rods on one relative inner side are hinged, and a settlement trigger column is provided at the hinge joint; one pin column is hinged to each of the two connecting rods on one relative outer side; the two pin columns are respectively slidably matched with the through holes on both sides of the upper bearing seat and the lower bearing seat; the top of the elastic support mechanism is fixedly connected to the bottom of the pile foundation; the bottom of the elastic support mechanism is buried in the soil.

[0007] Further, the two connecting rods are respectively a connecting rod A and a connecting rod B; both ends of the connecting rod A are a connecting seat and a hinge seat respectively; both ends of the connecting rod B are connecting seats; the hinge seat of the connecting rod A is hinged to the connecting seat of the connecting rod B.

[0008] Further, the two pin columns are respectively a pin column A and a pin column B; hinge seats are arranged on a pair of opposite inner sides of the pin column A and the pin column B; the hinge seats on the pin column A and the pin column B are respectively hinged to the connecting seats of the connecting rod A and the connecting rod B.

[0009] Further, a hinge seat A is arranged at the top of the settlement trigger column, and a central shaft is fixed in the hinge seat A; the central shaft is rotationally matched with the hinged joints of the connecting rod A and the connecting rod B.

[0010] Further, the inner diameter of the through hole is equal to the outer diameters of the two pin columns.

[0011] Further, the center lines of the two pin columns, the center lines of the through holes on both sides of the upper bearing seat, and the center lines of the through holes on both sides of the lower bearing seat are all in a coincident relationship.

[0012] Further, when the soil at the bottom of the settlement trigger column settles, due to the lack of sufficient supporting force, the settlement trigger column will slowly descend, so that the top of the settlement trigger column pulls the hinged joints of the two connecting rods; at this time, the two connecting rods are changed from a horizontal state to a V-shaped state.

[0013] Further, when the soil at the bottom of the settlement trigger column settles, the two pin columns will both move towards their inner sides. At this time, the moving paths of the outer ends of the two pin columns are both: moving from the outer ends of the through holes on both sides of the upper bearing seat to the inner wall of the through holes on both sides of the lower bearing seat.

[0014] Further, when the outer ends of the two pin columns move to the inner walls of the through holes on both sides of the lower bearing seat, the two pin columns can no longer hold the upper bearing seat and the lower bearing seat. At this time, the upper bearing seat and the lower bearing seat are in sliding fit under the action of the strong spring.

[0015] Further, a counterweight is arranged at the bottom of the settlement trigger column.

[0016] The present invention has the following beneficial effects:

[0017] 1. Through the actions of the upper bearing seat, the lower bearing seat, the strong spring and the pin mechanism, when settlement occurs, the upper bearing seat and the lower bearing seat are triggered to move away from each other under the action of the strong spring until the lower bearing seat extends downward to a support surface that can provide sufficient supporting force and provides a supporting effect for the upper bearing seat; the height reduction during settlement will be compensated to a certain extent, so that the change amount of the height difference of the pile foundation is greatly alleviated during settlement.

[0018] 2. Through the action of the counterweight, the present invention increases the weight of the settlement trigger column and the pressure at the bottom surface of the settlement trigger column. When settlement occurs at its position, it makes it easier for the settlement trigger column to achieve a descending effect relative to the lower bearing seat, thereby realizing the triggering function.

[0019] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a structural perspective view of a pile foundation support device for preventing settlement according to the present invention;

[0022] Figure 2 is a structural perspective view of a pile foundation support device for preventing settlement according to the present invention in a horizontal state;

[0023] Figure 3 is a structural perspective view of a pile foundation support device for preventing settlement according to the present invention in a V-shaped state;

[0024] Figure 4 is a structural schematic diagram of the latch mechanism;

[0025] Figure 5 is a structural schematic diagram of the upper bearing seat;

[0026] Figure 6 is a structural schematic diagram of the lower bearing seat and the strong spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0029] Please refer to Figures 1-6 As shown, the present invention is a pile foundation support device for preventing settlement, including an upper bearing seat 1, a lower bearing seat 2, a strong spring 3 and a pin mechanism 4; both the upper bearing seat 1 and the lower bearing seat 2 are cylindrical structures; the bottom of the upper bearing seat 1 is slidably connected to the top of the lower bearing seat 2; both ends of the strong spring 3 are respectively fixed to the inner top of the upper bearing seat 1 and the inner bottom of the lower bearing seat 2; through holes 5 are provided on the peripheral sides of the upper bearing seat 1 and the lower bearing seat 2; the pin mechanism 4 includes two pin columns 401, two connecting rods 402 and a settlement trigger column 403; the ends of the two connecting rods 402 on one relative inner side are hinged, and a settlement trigger column 403 is provided at the hinged part; one pin column 401 is hinged to each of the two opposite outer sides of the two connecting rods 402; the two pin columns 401 are respectively slidably matched with the through holes 5 on both sides of the upper bearing seat 1 and the lower bearing seat 2; the top of the elastic support mechanism is fixedly connected to the bottom of the pile foundation; the bottom of the elastic support mechanism is buried in the soil.

[0030] Preferably, the two connecting rods 402 are respectively a connecting rod A 4021 and a connecting rod B 4022; both ends of the connecting rod A 4021 are a connecting seat and a hinge seat respectively; both ends of the connecting rod B 4022 are connecting seats; the hinge seat of the connecting rod A 4021 is hinged to the connecting seat of the connecting rod B 4022.

[0031] Preferably, the two pin columns 401 are respectively a pin column A 4011 and a pin column B 4012; hinge seats are provided on one relative inner side surfaces of the pin column A 4011 and the pin column B 4012; the hinge seats on the pin column A 4011 and the pin column B 4012 are respectively hinged to the connecting seats of the connecting rod A 4021 and the connecting rod B 4022.

[0032] Preferably, a hinge seat A is provided at the top of the settlement trigger column 403, and a central shaft is fixed in the hinge seat A; the central shaft is rotationally matched with the hinged part of the connecting rod A 4021 and the connecting rod B 4022.

[0033] Preferably, the inner diameter of the through hole 5 is equal to the outer diameter of the two pin columns 401.

[0034] Preferably, the center lines of the two pin columns 401, the center lines of the through holes 5 on both sides of the upper bearing seat 1, and the center lines of the through holes 5 on both sides of the lower bearing seat 2 are all in a coincident relationship.

[0035] Preferably, when the soil at the bottom of the settlement trigger column 403 subsides, due to the lack of sufficient supporting force, the settlement trigger column 403 will slowly descend, thereby pulling the hinge joints of the two connecting rods 402 at the top of the settlement trigger column 403; at this time, the two connecting rods 402 change from a horizontal state to a V-shaped state.

[0036] Preferably, when the soil at the bottom of the settlement trigger column 403 subsides, both of the two pin columns 401 will move inward, and at this time, the moving paths of the outer ends of the two pin columns 401 are both: moving from the outer ends of the through holes 5 on both sides of the upper bearing seat 1 to the inner walls of the through holes 5 on both sides of the lower bearing seat 2.

[0037] Preferably, when the outer ends of the two pin columns 401 move to the inner walls of the through holes 5 on both sides of the lower bearing seat 2, the two pin columns 401 can no longer hold the upper bearing seat 1 and the lower bearing seat 2, and at this time, the upper bearing seat 1 and the lower bearing seat 2 perform a sliding fit under the action of the strong spring 3.

[0038] Preferably, a counterweight 404 is provided at the bottom of the settlement trigger column 403. The purpose of the counterweight 404 is to increase the weight of the settlement trigger column 403. At the same time, since the supporting area at its bottom is certain, the pressure is relatively large. When settlement occurs, the settlement trigger column 403 is more likely to descend relative to the lower bearing seat 2. When descending, the weight of the counterweight is increased, making it easier for the settlement trigger column 403 to pull the two connecting rods 402 from a horizontal state downward to a V-shaped state, thereby triggering the separation state of the two pin columns 401 from the upper bearing seat 1. Thus, the upper bearing seat 1 moves upward under the action of the strong spring 3; the displacement amount of the upper bearing seat 1 moving upward under the action of the strong spring 3 can be greater than or equal to or less than the settlement height of the lower bearing seat 2; the influencing factors include the elastic coefficient of the strong spring 3, the maximum slidable height difference between the upper bearing seat 1 and the lower bearing seat 2, the soil layer structure under the pile foundation, etc., and specific determination needs to be combined according to the actual situation.

[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A pile foundation support device for anti-settling, characterized in that: It comprises an upper load-bearing seat (1), a lower load-bearing seat (2), a strong spring (3) and a latch mechanism (4); The upper load-bearing seat (1) and the lower load-bearing seat (2) are both cylindrical structures; the bottom of the upper load-bearing seat (1) is slidably connected to the top of the lower load-bearing seat (2); the two ends of the strong spring (3) are respectively fixed to the inner top of the upper load-bearing seat (1) and the inner bottom of the lower load-bearing seat (2); through holes (5) are provided on the circumferential sides of the upper load-bearing seat (1) and the lower load-bearing seat (2); The bayonet mechanism (4) comprises two bayonet columns (401), two connecting rods (402) and a sinking trigger column (403); the two connecting rods (402) are hinged at their inner ends, and the hinged joint is matched with the sinking trigger column (403); the two connecting rods (402) are hinged at their outer ends. The two latching pins (401) are respectively slidably matched with the through holes (5) on both sides of the upper load-bearing seat (1) and the lower load-bearing seat (2).

2. The pile foundation support device for anti-settling according to claim 1, characterized in that: The two connecting rods (402) are respectively a connecting rod A (4021) and a connecting rod B (4022); both ends of the connecting rod A (4021) are respectively a connecting seat and a hinge seat; both ends of the connecting rod B (4022) are connecting seats; the hinge seat of the connecting rod A (4021) is hingedly connected to the connecting seat of the connecting rod B (4022).

3. The pile foundation support device for preventing subsidence according to claim 2, characterized in that: The two latch columns (401) are respectively a latch column A (4011) and a latch column B (4012); a hinge seat is provided on one relative inner side surface of the latch column A (4011) and the latch column B (4012); the hinge seats on the latch column A (4011) and the latch column B (4012) are respectively hinged to the connecting seats of the connecting rod A (4021) and the connecting rod B (4022).

4. The pile foundation support device for preventing subsidence according to claim 3, characterized in that: A hinge seat A is provided at the top of the settlement trigger column (403), and a central axis is fixed inside the hinge seat A; the central axis is rotationally matched with the hinge of the connecting rod A (4021) and the connecting rod B (4022).

5. The pile foundation support device for preventing subsidence according to claim 1, characterized in that: The inner diameter of the through hole (5) is equal to the outer diameter of the two latch pillars (401).

6. The pile foundation support device for preventing subsidence according to claim 1, characterized in that: The center lines of the two latch columns (401), the center lines of the through holes (5) on both sides of the upper load-bearing seat (1), and the center lines of the through holes (5) on both sides of the lower load-bearing seat (2) are all in a coincident relationship.

7. The pile foundation support device for preventing subsidence according to claim 1, characterized in that: When the soil at the bottom of the settlement triggering column (403) settles, the two connecting rods (402) are connected from a horizontal state to a V-shaped state.

8. The pile foundation support device for preventing subsidence according to claim 7, characterized in that: When the soil at the bottom of the settlement trigger column (403) settles, the moving paths of the outer ends of the two latch columns (401) are: moving from the outer ends of the through holes (5) on both sides of the upper bearing seat (1) to the inner walls of the through holes (5) on both sides of the lower bearing seat (2).

9. The pile foundation support device for preventing subsidence according to claim 8, characterized in that: When the outer ends of the two latch columns (401) move to the inner walls of the through holes (5) on both sides of the lower load-bearing seat (2), the two latch columns (401) can no longer clamp the upper load-bearing seat (1) and the lower load-bearing seat (2). At this time, the upper load-bearing seat (1) and the lower load-bearing seat (2) are slidably matched under the action of the strong spring (3).

10. A pile foundation support device for preventing subsidence according to any one of claims 1 to 9, characterized in that: A counterweight block (404) is arranged at the bottom of the settlement trigger column (403).

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