A steel plate inserting and guiding mechanism for foundation pit protection

Abstract

The utility model discloses a steel plate inserting and driving guide mechanism for foundation pit protection, comprising two mutually parallel guide frames and positioning frames respectively connected to the two guide frames, the positioning frames are symmetrically provided with positioning plates matched with the side edges of the sheet piles, the guide frames are provided with long holes, and the two ends of the positioning frames are fixed to the guide frames by bolts. The position of the positioning frame can be moved along the long holes by loosening the bolts, and there is no need to manually cut off the welding points, the operation is simple and convenient, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit construction, in particular to a steel plate inserting and striking guiding mechanism for foundation pit protection. Background Art

[0002] Highways, railways and other bridge projects across rivers and lakes are widely built in my country. The underwater pier foundations are set in the water or even below the riverbed. During the construction process, the steel sheet pile cofferdam structure is the first choice as the water-proof support system. When working in deep water areas, the steel sheet piles are long, have low rigidity, and require high insertion and positioning accuracy. Conventionally, manual hanging hammer balls are used, and the steel sheet piles are often misaligned, tilted, and difficult to close when controlled by the naked eye. For this reason, the industry has developed and designed a special guide frame to guide the steel sheet pile insertion process.

[0003] There is an existing application number 201920500764.5, which discloses a dual-guide steel sheet pile insertion and positioning device, including two mutually parallel guide frames and positioning frames respectively connected to the two guide frames, and the positioning frames are provided with positioning structures for positioning the steel sheet piles in the vertical direction. However, the positioning frames in the reference document are welded to the guide frames. When inserting the next sheet pile, the positioning frames need to be cut off and then spot welded to the next station, so that the positioning frames can be reused multiple times. However, this method is time-consuming and labor-intensive, and the construction efficiency is low. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a steel plate inserting and striking guiding mechanism for foundation pit protection. The guiding mechanism is easy to move and the construction efficiency is improved.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A steel plate insertion guide mechanism for foundation pit protection includes two mutually parallel guide frames and positioning frames respectively connected to the two guide frames, the positioning frames are symmetrically provided with positioning plates that cooperate with the side edges of sheet piles, the guide frames are provided with long holes, and the two ends of the positioning frames are fixed to the guide frames by bolts.

[0007] Furthermore, a guide wheel is provided on the inner side of the positioning plate.

[0008] Furthermore, a plurality of limit plates are provided on the guide frame corresponding to the steel sheet piles one by one, and the inner sides of the limit plates are in contact with the steel sheet piles.

[0009] Furthermore, a connecting plate is provided on the inner side of the lower end of the limiting plate, and the connecting plate is fixed to the guide frame by bolts.

[0010] Furthermore, a cushion block is provided on the outer side of the lower end of the limiting plate.

[0011] Furthermore, a rubber head is provided at the inner upper end of the limiting plate.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model has a long hole on the guide frame, and the two ends of the positioning frame are fixed to the guide frame by bolts. The position of the positioning frame can be moved along the long hole by loosening the bolts, and there is no need to manually cut off the welding point. The operation is simple and convenient, and the construction efficiency is improved.

[0014] 2. The utility model has a plurality of limit plates corresponding to the steel sheet piles on the guide frame, and the inner side of the limit plates is in contact with the steel sheet piles. After the steel sheet piles are inserted, the limit plates are installed on the guide frame, and the inner side of the limit plates is in close contact with the steel sheet piles, which can effectively prevent the phenomenon of sinking or pulling out of the previous steel sheet pile during the insertion of the latter steel sheet pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0019] Figure 4 This is a schematic diagram of the structure of the limit plate of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the limiting plate of the utility model.

[0021] In the figure: guide frame 1, positioning frame 2, long hole 3, positioning plate 4, guide wheel 5, limit plate 6, connecting plate 7, cushion block 8, rubber head 9. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, 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 them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] like Figure 1 As shown, a steel plate inserting and guiding mechanism for foundation pit protection includes two mutually parallel guide frames 1 and positioning frames 2 respectively connected to the two guide frames 1, the positioning frames 2 are symmetrically provided with positioning plates 4 that match the side of the sheet pile, the guide frames 1 are provided with long holes 3, the two ends of the positioning frames 2 are fixed to the guide frames 1 by bolts, the direction of the long holes 3 is parallel to the length direction of the guide frames 1, and the positioning frames 2 and the guide frames 1 are both made of I-beams. The position of the positioning frame 2 can be moved along the long holes 3 by loosening the bolts, and there is no need to manually cut off the welding points. The operation is simple and convenient, and the construction efficiency is improved.

[0024] like Figure 2 and Figure 3 As shown, a guide wheel 5 is provided on the inner side of the positioning plate 4 , and the guide wheel 5 can reduce the friction between the positioning plate 4 .

[0025] like Figure 1 As shown, the guide frame 1 is provided with a plurality of limit plates 6 corresponding to the steel sheet piles one by one, the inner side of the limit plates 6 is in contact with the steel sheet piles, and the limit plates 6 are triangular. After the steel sheet piles are inserted, the limit plates 6 are installed on the guide frame 1, and the inner side of the limit plates 6 is in close contact with the steel sheet piles, which can effectively prevent the phenomenon of sinking or pulling out of the previous steel sheet pile during the insertion of the latter steel sheet pile.

[0026] like Figure 4 As shown, a connecting plate 7 is provided on the inner side of the lower end of the limiting plate 6, and the connecting plate 7 is fixed to the guide frame 1 by bolts.

[0027] like Figure 5 As shown, a cushion block 8 is provided on the outer side of the lower end of the limit plate 6. By providing the cushion block 8, after the connecting plate 7 is fixed by bolts, the limit plate 6 tends to deflect inward, ensuring that the inner side of the limit plate 6 is in close contact with the steel sheet pile, and the locking reliability is good.

[0028] like Figure 5 As shown, a rubber head 9 is provided at the inner upper end of the limiting plate 6, and the rubber head 9 can increase the friction between the limiting plate 6 and the steel sheet pile, thereby ensuring that the height limitation of the steel sheet pile is reliable.

[0029] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A steel plate inserting and guiding mechanism for foundation pit protection, comprising two mutually parallel guide frames (1) and positioning frames (2) respectively connected to the two guide frames (1), wherein the positioning frames (2) are symmetrically provided with positioning plates (4) cooperating with the side edges of the sheet piles, characterized in that: The guide frame (1) is provided with a long hole (3), and the two ends of the positioning frame (2) are fixed to the guide frame (1) by bolts.

2. A steel plate inserting and guiding mechanism for foundation pit protection as claimed in claim 1, characterized in that: A guide wheel (5) is provided inside the positioning plate (4).

3. A steel plate inserting and guiding mechanism for foundation pit protection as claimed in claim 1, characterized in that: A plurality of limit plates (6) are provided on the guide frame (1) in one-to-one correspondence with the steel sheet piles, and the inner sides of the limit plates (6) are in contact with the steel sheet piles.

4. A steel plate inserting and guiding mechanism for foundation pit protection as claimed in claim 3, characterized in that: A connecting plate (7) is provided on the inner side of the lower end of the limiting plate (6), and the connecting plate (7) is fixed to the guide frame (1) by means of bolts.

5. A steel plate inserting and guiding mechanism for foundation pit protection as claimed in claim 4, characterized in that: A cushion block (8) is provided on the outer side of the lower end of the limiting plate (6).

6. A steel plate inserting and guiding mechanism for foundation pit protection as claimed in claim 3, characterized in that: A rubber head (9) is provided at the inner upper end of the limiting plate (6).

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