Deviation correcting device for sinking of open caisson

Abstract

The utility model relates to the technical field of open caisson construction, in particular to an open caisson sinking deviation rectifying device which comprises a fixing ring and a deviation rectifying device body. The deviation correcting device comprises three mounting bases distributed on the outer side of the fixing ring in an annular array mode, threaded rods rotationally connected to the mounting bases, threaded blocks connected to the threaded rods in a threaded mode, a movable base arranged on the threaded blocks, two guide blocks symmetrically distributed on the movable base and a connecting rod arranged on the movable base. The connecting rod is arranged on the mounting seat, the second fixing block is arranged on the connecting rod, the three second rollers are linearly distributed and rotationally connected to the second fixing block, the supporting block is arranged on the mounting seat, the fixing cylinder is horizontally arranged on the supporting block, the spring is arranged in the fixing cylinder, and the telescopic indicating rod is slidably connected to the fixing cylinder. The telescopic indicating rod is provided with a dial. According to the utility model, the defect that inclination and deviation of the open caisson cannot be completely solved only by the elastic force of the spring is overcome, and the construction quality of the open caisson is ensured.

Description

Technical Field

[0001] This utility model relates to the field of caisson construction technology, and in particular to a caisson sinking correction device. Background Technology

[0002] A caisson is a deep, cylindrical foundation structure. During construction, soil is removed from the caisson, and the structure's own weight overcomes the frictional resistance of the side walls to gradually sink to a predetermined depth. The bottom is then sealed with concrete, and the caisson chamber is backfilled, ultimately forming a load-bearing foundation. This method is widely used in deep foundation pit construction scenarios such as bridge pier foundations, municipal drainage pumping stations, heavy industrial equipment bases, underground protection projects, shield tunneling launching shafts, underground rail transit stations, and retaining structures for water conservancy projects.

[0003] Chinese Patent No. CN211498910U discloses a caisson foundation correction device for building construction. The device includes a caisson body with several support seats arranged around it. Each support seat includes a horizontal plate set horizontally on the foundation and a vertical plate fixed to the horizontal plate. An outer correction ring is fixedly connected horizontally between the vertical plates. An inner correction ring, coaxial with the outer correction ring, is disposed within the outer correction ring. Several elastic correction components are circumferentially arranged between the outer and inner correction rings. These correction components are detachable from the outer and inner correction rings. The caisson body is located within the inner correction ring and slides against it. This invention has the function of correcting caisson deviation during the caisson sinking process.

[0004] However, the above technical solution has the following shortcomings: Although the spring in the device has a resisting effect, the spring is usually not enough to overcome other external forces on the caisson. It can only slow down the tilt or displacement of the caisson to a certain extent, but cannot completely straighten the caisson on its own, especially when the tilt or displacement of the caisson is large. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a caisson sinking and correction device, which avoids the drawback that the elastic force of the spring itself cannot completely solve the tilting and displacement of the caisson, and ensures the quality of caisson construction.

[0006] The technical solution of this utility model is a caisson sinking correction device, including a fixed ring and a correction device; the correction device includes three mounting seats arranged in a ring array on the outside of the fixed ring, a threaded rod rotatably connected to the mounting seats, a threaded block threadedly connected to the threaded rod, a movable seat set on the threaded block, two guide blocks symmetrically distributed on the movable seats, a connecting rod set on the movable seats, a second fixed block set on the connecting rod, three second rollers linearly distributed and rotatably connected to the second fixed block, a support block set on the mounting seats, a fixed cylinder horizontally set on the support block, a spring set inside the fixed cylinder, and a telescopic indicator rod slidably connected to the fixed cylinder; the guide blocks are slidably connected inside the mounting seats, one end of the spring is set on the telescopic indicator rod, and the telescopic indicator rod has a scale.

[0007] Preferably, the fixing ring is provided with three first fixing blocks arranged in a ring array, and the first fixing blocks are rotatably connected to the first rollers.

[0008] Preferably, a handwheel is provided at one end of the threaded rod.

[0009] Preferably, the guide block has a T-shaped cross-section, and the mounting base is provided with a groove for the guide block to slide horizontally.

[0010] Preferably, the mounting base is provided with a support frame, and the connecting rod passes through the support frame and is slidably connected.

[0011] Preferably, the mounting base is provided with two symmetrically distributed fixing plates, the fixing plates are provided with multiple linearly arrayed stabilizing members, the fixing plates are provided with mounting blocks, the fixing ring is provided with three annularly arrayed support plates, the support plates are provided with connecting plates, and the connecting plates are provided on the mounting blocks.

[0012] Preferably, the mounting block has two threaded fixing bolts that pass through the connecting plate and abut against each other.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] 1. This utility model, through its set correction device, can quickly operate the corresponding mounting base according to the angle and size of the tilt offset of the caisson. This not only avoids the drawback of the spring structure design being insufficient to overcome other external forces on the caisson and thus unable to completely straighten the caisson on its own, but also facilitates the observation of the correction situation. The operation is simple and convenient, and it has good practicality.

[0015] 2. The design of this utility model, with its fixed ring, first roller, support plate, connecting plate, and two fixing bolts on one side, can determine the position of the three mounting seats, so that the mounting seats are located at the three corner points of an equilateral triangle, which facilitates the positioning and installation of the correction device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional schematic diagram of the mounting base of this utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the contacting mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled monitoring component of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the fixing ring of this utility model.

[0021] Reference numerals: 1. Fixing ring; 2. First fixing block; 3. First roller; 4. Mounting base; 5. Support block; 6. Fixing cylinder; 7. Telescopic indicator rod; 8. Threaded rod; 9. Handwheel; 10. Moving base; 11. Threaded block; 12. Guide block; 13. Connecting rod; 14. Second fixing block; 15. Second roller; 16. Support frame; 17. Fixing plate; 18. Stabilizing component; 19. Mounting block; 20. Support plate; 21. Connecting plate; 22. Fixing bolt; 24. Spring; 25. Dial. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-5 As shown in the figure, the caisson sinking correction device proposed in this embodiment includes a fixing ring 1 and a correction device.

[0024] The correction device includes three mounting seats 4 arranged in a ring array outside the fixed ring 1, a threaded rod 8 rotatably connected to the mounting seat 4, a threaded block 11 threadedly connected to the threaded rod 8, a movable seat 10 set on the threaded block 11, two guide blocks 12 symmetrically distributed on the movable seat 10, a connecting rod 13 set on the movable seat 10, a second fixed block 14 set on the connecting rod 13, three second rollers 15 linearly distributed and rotatably connected to the second fixed block 14, a support block 5 set on the mounting seat 4, a fixed cylinder 6 horizontally set on the support block 5, a spring 24 set inside the fixed cylinder 6, and a telescopic indicator rod 7 slidably connected to the fixed cylinder 6; the guide block 12 is slidably connected inside the mounting seat 4, the cross-sectional shape of the guide block 12 is T-shaped, the mounting seat 4 is provided with a groove for the guide block 12 to slide horizontally, one end of the spring 24 is set on the telescopic indicator rod 7, and the telescopic indicator rod 7 has a scale 25.

[0025] A handwheel 9 is provided at one end of the threaded rod 8. The handwheel 9 is used to directly rotate the threaded rod 8 manually, which can be used to correct the deviation of small caissons. When the device is used to operate on larger caissons, the handwheel 9 can be replaced with an electric drive device to drive the threaded rod 8 to rotate, ensuring that a sufficiently large correction force can be provided. A support frame 16 is provided on the mounting base 4. The connecting rod 13 passes through the support frame 16 and is slidably connected. The support frame 16 is used to provide auxiliary support for the connecting rod 13.

[0026] In this embodiment, when the caisson is not descending, the telescopic indicator rod 7 will abut against the caisson under the action of the spring 24. A line is drawn at the point where it coincides with the scale 25 on the telescopic indicator rod 7 at the port of the fixed cylinder 6 to record the standard scale value. When the caisson descends and deviates, it will push the telescopic indicator rod 7 to move. The telescopic indicator rod 7 moves into the fixed cylinder 6 via the compression spring 24. At this time, the threaded rod 8 is rotated by the handwheel 9, and the threaded rod 8 engages with the threaded block 11. Under the action of the guide block 12, the thread... Block 11 moves the movable seat 10 closer to the caisson. The movable seat 10 drives the second roller 15 to move through the connecting rod 13 and the second fixed block 14 until the second roller 15 abuts against the caisson and applies a pushing force to the caisson to achieve the correction of the caisson. When the standard scale value on the telescopic indicator rod 7 coincides with the port of the fixed cylinder 6 again, the correction operation is completed. The operation is simple and convenient, and easy to use. At the same time, it avoids the disadvantage that the spring structure design is not enough to overcome other external forces on the caisson and cannot completely straighten the caisson by itself. It has good practicality.

[0027] Example 2

[0028] like Figure 1 , Figure 2 and Figure 5 As shown, the caisson sinking and correction device proposed in this embodiment, compared with the first embodiment, has the following features: three first fixing blocks 2 arranged in a ring array on the fixing ring 1; first rollers 3 rotatably connected to the first fixing blocks 2; two symmetrically distributed fixing plates 17 on the mounting base 4; multiple linearly distributed stabilizing members 18 on the fixing plates 17; mounting blocks 19 on the fixing plates 17; three ring array support plates 20 on the fixing ring 1; connecting plates 21 on the support plates 20; the connecting plates 21 are mounted on the mounting blocks 19; and two fixing bolts 22 are threadedly connected to the mounting blocks 19, with the fixing bolts 22 penetrating the connecting plates 21 and abutting against each other.

[0029] In this embodiment, the fixing ring 1 and the first roller 3 not only play an auxiliary guiding role in the sinking of the caisson, but also, in conjunction with the design of the support plate 20, the connecting plate 21 and the two fixing bolts 22 on one side, can determine the position of the three mounting seats 4, so that the mounting seats 4 are located at the three corner points of an equilateral triangle. Thus, the force of the second roller 15 acting on the caisson can be perpendicular to the caisson, thereby realizing the function of quickly installing the correction device and reducing the inconvenience of using the equipment. The setting of the stabilizing member 18 is used to ensure the stability of the mounting seat 4.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A caisson sinking and correction device, characterized in that, include: Fixed ring (1); The correction device includes three mounting seats (4) arranged in a ring array outside the fixed ring (1), a threaded rod (8) rotatably connected to the mounting seat (4), a threaded block (11) threadedly connected to the threaded rod (8), a movable seat (10) set on the threaded block (11), two guide blocks (12) symmetrically distributed on the movable seat (10), a connecting rod (13) set on the movable seat (10), a second fixed block (14) set on the connecting rod (13), three second rollers (15) linearly distributed and rotatably connected to the second fixed block (14), a support block (5) set on the mounting seat (4), a fixed cylinder (6) horizontally set on the support block (5), a spring (24) set inside the fixed cylinder (6), and a telescopic indicator rod (7) slidably connected to the fixed cylinder (6); the guide block (12) is slidably connected inside the mounting seat (4), one end of the spring (24) is set on the telescopic indicator rod (7), and the telescopic indicator rod (7) has a scale (25).

2. The caisson sinking and correction device according to claim 1, characterized in that, The fixed ring (1) is provided with three first fixed blocks (2) arranged in a ring array, and the first fixed blocks (2) are rotatably connected to the first rollers (3).

3. The caisson sinking and correction device according to claim 1, characterized in that, A handwheel (9) is provided at one end of the threaded rod (8).

4. The caisson sinking and correction device according to claim 1, characterized in that, The cross-sectional shape of the guide block (12) is T-shaped, and the mounting base (4) is provided with a groove for the guide block (12) to slide horizontally.

5. The caisson sinking and correction device according to claim 1, characterized in that, The mounting base (4) is provided with a support frame (16), and the connecting rod (13) passes through the support frame (16) and is slidably connected.

6. The caisson sinking and correction device according to claim 1, characterized in that, The mounting base (4) is provided with two symmetrically distributed fixing plates (17), and multiple linearly distributed stabilizing members (18) are provided on the fixing plates (17). The fixing plate (17) is provided with a mounting block (19). The fixing ring (1) is provided with three annularly distributed support plates (20), and a connecting plate (21) is provided on the support plate (20). The connecting plate (21) is provided on the mounting block (19).

7. A caisson sinking and correction device according to claim 6, characterized in that, The mounting block (19) has two fixing bolts (22) threadedly connected to it. The fixing bolts (22) pass through the connecting plate (21) and abut against each other.

Images