Pile foundation underpinning mechanism of subway station

Abstract

The utility model discloses a subway station pile foundation underpinning mechanism which comprises a supporting column, a screw rod is fixedly welded to the surface of the supporting column, a reinforcing rod is connected to the outer side of the screw rod in a sleeved mode, and a gasket is connected to the outer side of the screw rod in a sleeved mode. The stability between the supporting columns can be enhanced, safety accidents caused by inclination of the supporting seat during underpinning of the bridge pier column can be prevented, the reinforcing plate can be conveniently dismantled for later dismantling work by rotating the dismantling nut and driving the gasket and the reinforcing rod to be dismantled, and the longitudinal position of the bridge pier column can be fixed through the design of the reinforcing plate; safety accidents caused by longitudinal dislocation and instability of the pair of supporting columns are prevented; the handle is moved upwards to drive the connecting block and the plug pin to be pulled out, the positioning pin loses constraint, the auxiliary safety mechanism is conveniently and rapidly pulled and disassembled, the connecting plate can be fastened and attracted through the design of the magnetic ring, and the positioning pin is conveniently and fixedly installed so that the plug pin can be conveniently inserted.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile foundation underpinning device technical field, concretely is a kind of pile foundation underpinning mechanism of subway station. BACKGROUND

[0002] Pile underpinning is the general term of underpinning using various pile types, so the content is very extensive, and the commonly used pile underpinning methods include static pressure pile, bored pile, driven pile and root pile.

[0003] At present, the existing pile foundation underpinning mechanism is used in the construction of subway station, then the jack slowly unloads, and drives the underpinning beam to slowly descend, then drives the stabilizing column to descend, then pushes the connecting column to descend in the limiting slot chamber in the reinforcing plate, and the jack stops unloading, and the reinforcing plate is inserted into the slot, then the user inserts the limiting column into the slot in the reinforcing plate, then penetrates into the reserved slot and enters the connecting column to limit, then drives the steel pipe pad block to be punched into the position of jack, so that the safety can be better improved.

[0004] For example, the pile foundation underpinning mechanism combined with the structure of subway station disclosed in the authorized announcement number CN218813834U, including underpinning beam and underpinning pile, the side of the underpinning beam is connected with auxiliary safety mechanism by screw, the auxiliary safety mechanism includes connecting column, reinforcing plate, slot, reserved slot, limiting column and stabilizing column. The lower side of the stabilizing column is fixedly connected with the connecting column, the front end of the connecting column is internally provided with a reserved slot, the lower side of the connecting column is externally movably connected with the reinforcing plate, the front end of the reinforcing plate is internally provided with a slot, the slot is movably connected with the limiting column inside, and the lower side of the underpinning pile is provided with a stabilizing mechanism. However, such pile foundation underpinning mechanism combined with the structure of subway station, when underpinning bridge pier column, the connecting assembly is inclined to cause safety accident, and it is not convenient to quickly remove the auxiliary safety mechanism.

[0005] From the above-mentioned existing patent document, it can be known that when underpinning bridge pier column, the connecting assembly is inclined to cause safety accident, and it is not convenient to quickly remove the auxiliary safety mechanism, therefore, the existing technology needs to be improved. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of pile foundation underpinning mechanism of subway station, to solve the problem that when underpinning bridge pier column, the connecting assembly is inclined to cause safety accident, and it is not convenient to quickly remove the auxiliary safety mechanism.

[0007] To achieve the above object, the utility model provides the following technical scheme: A pile foundation underpinning mechanism of subway station, support column's surface is fixed with screw rod, the outside of screw rod is sleeved with reinforcing rod, the outside of screw rod is sleeved with gasket, the outside of screw rod is connected with nut through screw thread, the side of reinforcing rod is fixed with reinforcing plate, the upper end of support column is fixed with support seat, the upper end of support seat is installed with jack, the upper end of jack is pressed with underpinning beam, the inside of underpinning beam is installed with bridge pier column, the lower end of underpinning beam is connected with protection assembly, the both sides of underpinning beam are fixedly connected with connecting plate, the inside of connecting plate is inserted with locating pin, the one end of locating pin is fixedly adhered with magnetic ring, the one end of locating pin is inserted with bolt, the upper end of bolt is fixedly connected with connecting block, the upper end surface of connecting block is fixedly connected with handle, the outside of locating pin is inserted with auxiliary safety mechanism.

[0008] Preferably, the surface of the support column closely abuts the reinforcing rod, the surface of the gasket closely abuts the nut, and the gasket is pressed against the reinforcing rod on the support column by rotating the tightened nut, thereby enhancing the stability between the support columns and preventing the support seat from tilting during the underpinning of the bridge pier column, which may cause safety accidents.

[0009] Preferably, the surface of the reinforcing rod closely abuts the gasket, and the nut is internally provided with a threaded hole for the screw rod, so that the gasket and the reinforcing rod are removed by rotating and removing the nut, thereby facilitating the removal of the reinforcing plate for subsequent disassembly work.

[0010] Preferably, the reinforcing rod is internally provided with a mounting hole for the screw rod, the gasket is internally provided with a mounting hole for the screw rod, and the bridge pier column is sleeved in the interior of the protection assembly, so that the design of the reinforcing plate can fix the longitudinal position of the bridge pier column and prevent a pair of support columns from being longitudinally misaligned and unstable, which may cause safety accidents.

[0011] Preferably, one side of the connecting plate closely abuts the connecting block, and the inside of the connecting plate closely abuts the auxiliary safety mechanism, so that the connecting block and the bolt are extracted by moving the handle upward, the locating pin is released from restraint, and the auxiliary safety mechanism is conveniently and quickly removed.

[0012] Preferably, the inside of the magnetic ring is tightly adsorbed to the connecting plate, and one side of the connecting plate closely abuts the bolt, so that the design of the magnetic ring can tightly adsorb the connecting plate, facilitating the fixation and installation of the locating pin for the insertion of the bolt.

[0013] Preferably, the inside of the support seat is sleeved with the auxiliary safety mechanism, and the both sides of the underpinning beam closely abut the auxiliary safety mechanism, so that the design of the auxiliary safety mechanism can balance and guide the underpinning beam, thereby preventing the underpinning beam from tilting during installation, which may cause safety accidents.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The utility model discloses a rotating tightening nut drives gasket to press the reinforcing rod to support column, can strengthen the stability between support column, prevent the support seat inclination when supporting bridge pier column and cause safety accident, through the rotation dismantling nut, drive gasket and reinforcing rod dismantle, convenient dismantling reinforcing plate carries out the later period dismantling work, the design of reinforcing plate can fix the longitudinal position of bridge pier column, prevent a pair of support column longitudinal misplacement and cause safety accident.

[0016] 2. The utility model discloses through moving upwards handle drives connecting block and bolt to draw out, and positioning pin loses the restraint, convenient quick pulling dismantling auxiliary safety mechanism, the design of magnetic ring can fasten adsorption connecting plate, convenient fixed installation positioning pin, in order to insert bolt, the design of auxiliary safety mechanism can balance and guide the support beam, prevent the installation process and dump and cause safety accident. DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the utility model A place enlarged view;

[0019] Figure 3 It is the reinforcing rod schematic diagram of the utility model;

[0020] Figure 4 It is the auxiliary safety mechanism right view enlarged sectional view of the utility model;

[0021] Figure 5 It is the positioning pin perspective view of the utility model enlarged view.

[0022] In the drawing: 1 support column, 11 screw rod, 12 reinforcing rod, 13 gasket, 14 nut, 15 reinforcing plate, 16 support seat, 17 jack, 2 support beam, 21 bridge pier column, 22 protection assembly, 23 connecting plate, 24 positioning pin, 25 magnetic ring, 26 bolt, 27 connecting block, 28 handle, 29 auxiliary safety mechanism. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figures 1-5, one of the pile foundation underpining mechanism of a subway station in the drawing, including support column 1, the surface of support column 1 is fixedly welded with screw rod 11, the outer side of screw rod 11 is sleeved with reinforcing rod 12, the outer side of screw rod 11 is sleeved with gasket 13, the outer side of screw rod 11 is connected with nut 14 through thread, one side of reinforcing rod 12 is fixedly welded with reinforcing plate 15, the upper end of support column 1 is fixedly welded with support base 16, the upper end of support base 16 is installed with jack 17, the upper end of jack 17 is pressed with underpinning beam 2, the inside of underpinning beam 2 is installed with bridge pier column 21, the lower end of underpinning beam 2 is connected with protection assembly 22, both sides of underpinning beam 2 are fixedly connected with connecting plate 23, the inside of connecting plate 23 is inserted with positioning pin 24, one end of positioning pin 24 is fixedly adhered with magnetic ring 25, one end of positioning pin 24 is inserted with latch 26, the upper end of latch 26 is fixedly connected with connecting block 27, the upper end surface of connecting block 27 is fixedly connected with handle 28, the outer side of positioning pin 24 is inserted with auxiliary safety mechanism 29.

[0025] In order to prevent the support base 16 from tilting and causing safety accidents when underpinning the bridge pier column 21, the surface of the support column 1 is tightly attached to the reinforcing rod 12, the surface of the gasket 13 is tightly attached to the nut 14, and the gasket 13 is pressed tightly against the reinforcing rod 12 on the support column 1 by rotating the tightened nut 14, which can enhance the stability between the support columns 1 and prevent the support base 16 from tilting and causing safety accidents when underpinning the bridge pier column 21. The surface of the reinforcing rod 12 is tightly attached to the gasket 13, and the nut 14 is internally provided with a threaded hole for the screw rod 11. By rotating and removing the nut 14, the gasket 13 and the reinforcing rod 12 are removed, which facilitates the removal of the reinforcing plate 15 for later disassembly work. The reinforcing rod 12 is internally provided with a mounting hole for the screw rod 11, and the gasket 13 is internally provided with a mounting hole for the screw rod 11. The inside of the protection assembly 22 is sleeved with the bridge pier column 21, and the design of the reinforcing plate 15 can fix the longitudinal position of the bridge pier column 21, preventing a pair of support columns 1 from being longitudinally misaligned and unstable, which can cause safety accidents.

[0026] In order to facilitate the quick pulling and removal of the auxiliary safety mechanism 29, one side of the connecting plate 23 is tightly attached to the connecting block 27, and the inner side of the connecting plate 23 is tightly attached to the auxiliary safety mechanism 29. By moving the handle 28 upwards to drive the connecting block 27 and the latch 26 to be extracted, the positioning pin 24 is released, which facilitates the quick pulling and removal of the auxiliary safety mechanism 29. The inner side of the magnetic ring 25 is tightly attached to the connecting plate 23, one side of the connecting plate 23 is tightly attached to the latch 26, and the design of the magnetic ring 25 can tightly attach the connecting plate 23, which facilitates the fixation and installation of the positioning pin 24 for the insertion of the latch 26. The inside of the support base 16 is sleeved with the auxiliary safety mechanism 29, both sides of the underpinning beam 2 are tightly attached to the auxiliary safety mechanism 29, and the design of the auxiliary safety mechanism 29 can balance and guide the underpinning beam 2, preventing it from tilting during installation and causing safety accidents.

[0027] The pile foundation underpining mechanism of the subway station can strengthen the stability between the support columns 1 by rotating the tightening nut 14 to drive the gasket 13 to compress the reinforcing rod 12 on the support column 1, prevent the support seat 16 from tilting to cause a safety accident when underpinning the bridge pier column 21, remove the gasket 13 and the reinforcing rod 12 by rotating the removal nut 14, facilitate the removal of the reinforcing plate 15 for the later dismounting work, fix the longitudinal position of the bridge pier column 21 by the design of the reinforcing plate 15, prevent a pair of support columns 1 from being longitudinally dislocated to cause a safety accident, move the handle 28 upward to drive the connecting block 27 and the bolt 26 to be extracted, lose the restraint of the positioning pin 24, facilitate the quick pulling and removal of the auxiliary safety mechanism 29, fasten and adsorb the connecting plate 23 by the design of the magnetic ring 25, facilitate the fixing and installation of the positioning pin 24, insert the bolt 26, and balance and guide the underpinning beam 2 by the design of the auxiliary safety mechanism 29, prevent the underpinning beam 2 from tilting to cause a safety accident during the installation process.

[0028] Although the embodiments of the utility model have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pile foundation underpinning mechanism for a subway station, comprising a support column (1), characterized in that: The surface of the support column (1) is fixedly welded with a screw rod (11), the outer side of the screw rod (11) is sleeved with a reinforcing rod (12), the outer side of the screw rod (11) is sleeved with a gasket (13), the outer side of the screw rod (11) is connected with a nut (14) through threads, one side of the reinforcing rod (12) is fixedly welded with a reinforcing plate (15), the upper end of the support column (1) is fixedly welded with a support seat (16), the upper end of the support seat (16) is installed with a jack (17), the upper end of the jack (17) is pressed with a bent cap beam (2), the inside of the bent cap beam (2) is installed with a pier column (21), the lower end of the bent cap beam (2) is connected with a protection assembly (22), both sides of the bent cap beam (2) are fixedly connected with a connecting plate (23), the inside of the connecting plate (23) is inserted with a positioning pin (24), one end of the positioning pin (24) is fixedly adhered with a magnetic ring (25), one end of the positioning pin (24) is inserted with a bolt (26), the upper end of the bolt (26) is fixedly connected with a connecting block (27), the upper end surface of the connecting block (27) is fixedly connected with a handle (28), the outer side of the positioning pin (24) is inserted with an auxiliary safety mechanism (29).

2. The pile foundation underpinning mechanism of a subway station according to claim 1, characterized in that: The surface of the support column (1) is close to the reinforcing rod (12), and the surface of the gasket (13) is close to the nut (14).

3. The pile foundation underpinning mechanism of a subway station according to claim 1, characterized in that: The surface of the reinforcing rod (12) is close to the gasket (13), and the nut (14) is provided with a threaded hole of the screw rod (11) in the inside.

4. The pile foundation underpinning mechanism of a subway station according to claim 1, characterized in that: The reinforcing rod (12) is provided with a mounting hole of the screw rod (11) in the inside, the gasket (13) is provided with a mounting hole of the screw rod (11) in the inside, and the protection assembly (22) is sleeved with the pier column (21) in the inside.

5. The pile foundation underpinning mechanism of a subway station according to claim 1, characterized in that: One side of the connecting plate (23) is close to the connecting block (27), and the inner side of the connecting plate (23) is close to the auxiliary safety mechanism (29).

6. The pile foundation underpinning mechanism of a subway station according to claim 1, characterized in that: The inner side of the magnetic ring (25) is fastened to adsorb the connecting plate (23), and one side of the connecting plate (23) is close to the bolt (26).

7. The pile foundation underpinning mechanism of a subway station according to claim 1, characterized in that: The inside of the support seat (16) is sleeved with the auxiliary safety mechanism (29), and both sides of the bent cap beam (2) are close to the auxiliary safety mechanism (29).

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