Steel casing supporting device for cofferdam lead hole pile foundation construction

Abstract

The utility model provides a cofferdam guide hole pile foundation construction steel casing supporting device which comprises an upper bracket and a lower bracket which are vertically arranged in parallel, the upper bracket and the lower bracket are fixedly connected through a supporting column, and a connecting frame is fixedly arranged on the supporting column. Supporting plates are fixedly arranged at the bottoms of the upper bracket and the lower bracket, avoiding openings are formed in the supporting plates, positioning plates are detachably arranged at the tops of the supporting plates, positioning holes are formed in the centers of the positioning plates, and stopping mechanisms used for stopping or releasing the positioning plates in the upper bracket and the lower bracket are uniformly arranged on the upper bracket and the lower bracket; according to the utility model, the positioning plates are mounted above the supporting plates in the upper bracket and the lower bracket and are stopped and fixed through the stopping mechanism, and as the positioning holes are formed in the centers of the positioning plates, and the positioning plates are mounted in the centers of the upper bracket and the lower bracket, the horizontal projection deviation of the central points of the two positioning plates can be controlled within a reasonable range; and the steel casing penetrates into the positioning holes of the two positioning plates, so that the perpendicularity of the steel casing is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of pile foundation construction technology, specifically relating to a steel casing support device for cofferdam pre-hole pile foundation construction. Background Technology

[0002] Construction of cofferdam pilot hole pile foundations under conditions of strong tidal surge and bare rock: The pilot hole operation is carried out on bare rock, and the steel casing cannot be fixed or stood upright. The conventional construction process is to build a platform for fixation, which involves a large amount of work and high cost.

[0003] The single-layer guide frame cannot be fixed due to the large tidal surge and lack of a covering layer, and the casing will tilt after a period of time.

[0004] In the prior art, Chinese utility model patent with authorization announcement number CN217399642U discloses a steel casing support device for cofferdam pilot hole pile foundation construction. It uses two sets of rollers to position and guide the steel casing. Each set of rollers is fixed to the support frame by screws. During construction, it is adjusted according to the outer diameter of the steel pipe pile. This adjustment and adaptation method is prone to deviation in the horizontal projection of the center point of the upper limit space and the lower limit space after adjustment, which affects the verticality of the steel casing construction axis. It is necessary to continuously adjust the rollers to meet the dimensions, which consumes a lot of time and affects the construction efficiency.

[0005] Therefore, it is necessary to design a steel casing support device for cofferdam pilot pile foundation construction that can adapt to and support steel casings of different specifications within a certain range, avoid deviations in the horizontal projection of the upper and lower center points of the steel casing, and ensure construction efficiency, in order to solve the current technical problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this utility model provides a steel casing support device for cofferdam pilot pile foundation construction that can adapt to and support steel casings of different specifications within a certain range, avoid deviations in the horizontal projection of the upper and lower center points of the steel casing, and ensure construction efficiency.

[0007] The technical solution of this utility model is as follows: a steel casing support device for cofferdam pilot hole pile foundation construction, including an upper bracket and a lower bracket arranged parallel to each other. The upper bracket and the lower bracket are fixedly connected by a support column, and a connecting frame is fixedly installed on the support column. A support plate is fixedly installed at the bottom of both the upper bracket and the lower bracket. An avoidance opening is provided on the support plate. A positioning plate is detachably installed on the top of the support plate. A positioning hole is provided in the center of the positioning plate. A blocking mechanism for blocking or releasing the positioning plate inside is evenly arranged on the upper bracket and the lower bracket.

[0008] Furthermore, the stopping mechanism has a sliding groove, and a baffle for stopping or releasing the positioning plate is slidably disposed inside the sliding groove. A support frame is fixedly disposed on the top of the sliding groove, and an adjusting bolt is threadedly connected to the support frame. The bottom end of the adjusting bolt is connected to the end of the baffle. The sliding groove is fixedly connected to the corresponding upper bracket or lower bracket.

[0009] Furthermore, a connecting rod is hinged to the side of the baffle away from the positioning plate, and a hinge seat is rotatably provided at the lower end of the adjusting bolt. The end of the connecting rod away from the baffle is hinged to the hinge seat, and the bottom end of the adjusting bolt is connected to the end of the baffle through the connecting rod.

[0010] Furthermore, a baffle is fixedly provided at one end of the baffle away from the slide groove. The middle part of the baffle is fixedly connected to the end of the baffle. Guide rods are vertically fixedly provided on both ends of the baffle near the baffle. Slide seats are slidably fitted on the guide rods. The slide seats are fixedly connected to the corresponding upper bracket or lower bracket.

[0011] Furthermore, the positioning plate is provided with a groove that matches the stop bar.

[0012] Furthermore, the positioning plate is symmetrically provided with lifting lugs, and the lifting lugs are provided with through holes.

[0013] Furthermore, the distance between the top of the tray and the top of the corresponding upper and lower brackets is matched with the thickness of the positioning plate.

[0014] The beneficial effects of this utility model are:

[0015] (1) In this utility model, the positioning holes in the positioning plate are customized according to the outer diameter of the steel casing of different specifications. The customized positioning plate is installed on the upper bracket and the lower bracket inside the bracket, and the positioning plate is stopped and fixed by the blocking mechanism. Since the positioning hole is opened in the center of the positioning plate, the positioning plate is installed in the center of the upper bracket and the lower bracket, which can ensure that the horizontal projection deviation of the center point of the two positioning plates is controlled within a reasonable range. The steel casing is inserted into the positioning holes of the two positioning plates to ensure the verticality of the steel casing.

[0016] (2) When the positioning plate is installed, since its outer side fits into the inside of the upper bracket and the lower bracket, there is no need to repeatedly check and correct the position of the positioning hole, thus ensuring construction efficiency.

[0017] (3) Custom positioning plates are made according to the outer diameter of the steel casing in different projects, which can be used for the construction positioning support of steel casings with different outer diameters within a certain range. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the steel casing support device for the cofferdam pre-hole pile foundation construction in this utility model.

[0019] Figure 2 This is a partial structural schematic diagram of the steel casing support device for cofferdam pilot hole pile foundation construction in this utility model.

[0020] Figure 3 This is a schematic diagram of the positioning plate in this utility model.

[0021] Figure 4 This is one of the structural schematic diagrams of the stop mechanism in this utility model.

[0022] Figure 5 This is the second structural schematic diagram of the stopping mechanism in this utility model.

[0023] Figure 6 for Figure 5 Cross-sectional view at point AA. Detailed Implementation

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0025] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figures 1 to 6As shown, the steel casing support device for cofferdam pilot hole pile foundation construction includes an upper bracket 1 and a lower bracket 2 arranged parallel to each other. The upper bracket 1 and the lower bracket 2 are fixedly connected by a support column 3, and a connecting frame 4 is fixedly installed on the support column 3. A support plate 7 is fixedly installed at the bottom of both the upper bracket 1 and the lower bracket 2. An avoidance opening 71 is opened on the support plate 7. A positioning plate 5 is detachably installed on the top of the support plate 7. A positioning hole 51 is opened in the center of the positioning plate 5. A blocking mechanism 6 for blocking or releasing the internal positioning plate 5 is evenly arranged on the upper bracket 1 and the lower bracket 2. In this embodiment, the positioning hole 51 in the positioning plate 5 is customized according to the outer diameter of the steel casing of different specifications. The customized positioning plate 5 is used to install the upper bracket 1 and the lower bracket. Above the inner support plate 7, the positioning plate 5 is stopped and fixed by the stopping mechanism 6. Since the positioning hole 51 is opened in the center of the positioning plate 5, the positioning plate 5 is installed in the center of the upper support 1 and the lower support 2, which can ensure that the horizontal projection deviation of the center point of the two positioning plates 5 is controlled within a reasonable range. The steel casing is inserted into the positioning hole 51 of the two positioning plates 5 to ensure the verticality of the steel casing. At the same time, when the positioning plate 5 is installed, since its outer side is fitted with the inside of the upper support 1 and the lower support 2, there is no need to repeatedly check and correct the position of the positioning hole 51, which ensures construction efficiency. In addition, the positioning plate 5 can be customized according to the outer diameter of the steel casing in different projects to adapt to the construction positioning support of steel casings with different outer diameters within a certain range.

[0027] In some embodiments, such as Figures 4 to 6 As shown, the blocking mechanism 6 has a slide groove 61, inside which a baffle 62 for blocking or releasing the positioning plate 5 is slidably disposed. A support frame 64 is fixedly disposed on the top of the slide groove 61, and an adjusting bolt 66 is threadedly connected to the support frame 64. The bottom end of the adjusting bolt 66 is connected to the end of the baffle 62. The slide groove 61 is fixedly connected to the corresponding upper bracket 1 or lower bracket 2. By controlling the extension and retraction of the baffle 62 inside the slide groove 61, the blocking or releasing state of the positioning plate 5 can be switched. Specifically, by screwing... The adjusting bolt 66, through its threaded structure with the support frame 64, causes the adjusting bolt 66 to move up and down. During this movement, the adjusting bolt 66 causes the baffle 62 to slide inside the slide groove 61, enabling the extension and retraction control of the baffle 62 within the slide groove 61. When the positioning plate 5 is installed inside the upper bracket 1 and the lower bracket 2, the baffle 62 provides stable support for the positioning plate 5. After the baffle 62 retracts into the slide groove 61, it is easy to place and remove the positioning plate 5 from the upper bracket 1 and the lower bracket 2.

[0028] In some embodiments, a connecting rod 63 is hinged to the side of the baffle 62 away from the positioning plate 5, and a hinge seat 65 is rotatably provided at the lower end of the adjusting bolt 66. The end of the connecting rod 63 away from the baffle 62 is hinged to the hinge seat 65. The bottom end of the adjusting bolt 66 and the end of the baffle 62 are connected by the connecting rod 63. When the adjusting bolt 66 is tightened, the threaded structure between the adjusting bolt 66 and the support frame 64 drives the adjusting bolt 66 to move up and down. The bottom end of the adjusting bolt 66 drives the baffle 62 inside the slide groove 61 through the connecting rod 63.

[0029] In some embodiments, a baffle 67 is fixedly provided at one end of the baffle 62 away from the slide groove 61. The middle part of the baffle 67 is fixedly connected to the end of the baffle 62. Guide rods 68 are vertically fixedly provided on both ends of the baffle 67 near the baffle 62. A slide seat 69 is slidably fitted on the guide rod 68. The slide seat 69 is fixedly connected to the corresponding upper bracket 1 or lower bracket 2. The baffle 67 increases the blocking area of ​​the positioning plate 5, further ensuring the stability of the positioning plate 5 in the upper bracket 1 and lower bracket 2.

[0030] In some embodiments, the positioning plate 5 is provided with a groove 52 that matches the baffle 67. When the positioning plate 5 is installed inside the upper bracket 1 and the lower bracket 2, the baffle 62 stops the positioning plate 5. At the same time, the baffle 62 drives the baffle 67 to be inserted into the groove 52, further ensuring the stability of the positioning plate 5 in the upper bracket 1 and the lower bracket 2.

[0031] In some embodiments, such as Figure 3 As shown, the positioning plate 5 is symmetrically provided with lifting lugs 53, and the lifting lugs 53 are provided with through holes; the positioning plate 5 can be easily lifted and moved through the lifting lugs 53.

[0032] In some embodiments, the distance between the top of the tray 7 and the top of the corresponding upper bracket 1 and lower bracket 2 is matched with the thickness of the positioning plate 5, so that the positioning plate 5 can be just embedded into the space inside the upper bracket 1 and lower bracket 2.

[0033] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0034] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A steel casing support device for cofferdam pilot hole pile foundation construction, characterized in that: It includes an upper bracket and a lower bracket arranged parallel to each other, the upper bracket and the lower bracket are fixedly connected by a support column, and a connecting frame is fixedly installed on the support column; The bottom of both the upper bracket and the lower bracket is fixedly provided with a support plate. The support plate has an opening for clearance. The top of the support plate is detachably provided with a positioning plate. The positioning plate has a positioning hole in the center. The upper bracket and the lower bracket are evenly provided with a blocking mechanism for blocking or releasing the positioning plate inside.

2. The steel casing support device for cofferdam pilot hole pile foundation construction according to claim 1, characterized in that: The stopping mechanism has a sliding groove, and a baffle for stopping or releasing the positioning plate is slidably arranged inside the sliding groove. A support frame is fixedly arranged on the top of the sliding groove, and an adjusting bolt is threadedly connected to the support frame. The bottom end of the adjusting bolt is connected to the end of the baffle. The sliding groove is fixedly connected to the corresponding upper bracket or lower bracket.

3. The steel casing support device for cofferdam pilot hole pile foundation construction according to claim 2, characterized in that: A connecting rod is hinged to the side of the baffle away from the positioning plate. A hinge seat is rotatably provided at the lower end of the adjusting bolt. The end of the connecting rod away from the baffle is hinged to the hinge seat. The bottom end of the adjusting bolt and the end of the baffle are connected by the connecting rod.

4. The steel casing support device for cofferdam pilot hole pile foundation construction according to claim 2, characterized in that: A baffle is fixedly provided at one end of the baffle away from the slide groove. The middle part of the baffle is fixedly connected to the end of the baffle. Guide rods are vertically fixedly provided on both ends of the baffle near the baffle. Slide seats are slidably fitted on the guide rods. The slide seats are fixedly connected to the corresponding upper bracket or lower bracket.

5. The steel casing support device for cofferdam pilot hole pile foundation construction according to claim 4, characterized in that: The positioning plate has a groove that matches the stop bar.

6. The steel casing support device for cofferdam pilot hole pile foundation construction according to claim 1, characterized in that: The positioning plate is symmetrically provided with lifting lugs, and the lifting lugs are provided with through holes.

7. The steel casing support device for cofferdam pilot hole pile foundation construction according to claim 1, characterized in that: The distance between the top of the tray and the top of the corresponding upper and lower brackets is matched with the thickness of the positioning plate.

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