Guiding device for hoisting and placing reinforcement cage at lower part of upper-wall lower-pile foundation pit into hole

Abstract

An upper-wall lower-pile foundation pit lower reinforcement cage hoisting and placing hole guide device belongs to the technical field of rotary excavating pile construction and comprises a rectangular base, the top of the base is detachably connected with an outer frame, the outer frame is detachably connected with four spliced guide rails, and each spliced guide rail is detachably connected with a guide mechanism. Two rows of parallel guide rails capable of being spliced are respectively arranged on two sides of the groove wall of the underground diaphragm wall, the guide mechanisms are connected onto the guide rails, and the guide rails and the guide mechanisms have a very good guide effect on hole entering of the reinforcement cage, so that the reinforcement cage can be prevented from shaking in the hole entering process, and the hole aligning accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary drilling pile construction, and relates to a guiding device for hoisting a steel reinforcement cage into a hole, in particular to a guiding device for hoisting the lower steel reinforcement cage of a foundation pit with an upper wall and a lower pile into a hole. Background Technique

[0002] The upper wall and lower pile means that in a soil-rock foundation pit, the lower part of the diaphragm wall is adjusted to a supporting form of a rock-socketed cast-in-place pile. This supporting form reduces the excavation in high-strength rock strata. The diaphragm wall can enter the bedrock less, thereby reducing the construction difficulty of the retaining structure and the construction cost, and having good economic benefits.

[0003] When hoisting the steel reinforcement cage of the upper wall and lower pile, the steel reinforcement cage of the foundation pile and the steel reinforcement cage of the diaphragm wall are hoisted simultaneously and poured at one time. The general steps are that it is necessary to first hoist and lower the steel reinforcement cage of the lower cast-in-place pile in the hole of the cast-in-place pile under the diaphragm wall groove of the ground, make marks on the ground, then vertically hoist and weld it with the steel reinforcement cage of the diaphragm wall, and finally hoist the whole to the design position. During the trial hoisting process of the steel reinforcement cage of the cast-in-place pile, since the hole position is at a relatively deep position, it is difficult to keep the steel reinforcement cage stable during the lowering process, and it is difficult to align with the hole. Therefore, it is necessary to guide the steel reinforcement cage when it enters the hole to make it enter the hole as accurately as possible.

[0004] Therefore, the utility model provides a guiding device for hoisting the lower steel reinforcement cage of a foundation pit with an upper wall and a lower pile into a hole. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the utility model is to provide a guiding device for hoisting the lower steel reinforcement cage of a foundation pit with an upper wall and a lower pile into a hole, which is used to solve the technical problem that the steel reinforcement cage is prone to shake during the hoisting and lowering process of the lower cast-in-place pile steel reinforcement cage in the foundation pit with an upper wall and a lower pile in the prior art, thereby reducing the accuracy of the steel reinforcement cage entering the hole, and further affecting the working efficiency and finished product rate of the upper wall and lower pile.

[0006] To achieve the above purpose and other related purposes, the utility model provides a guiding device for hoisting the lower steel reinforcement cage of a foundation pit with an upper wall and a lower pile into a hole, which includes a rectangular base, the top of the base is detachably connected with an outer frame, and 4 spliced guide rails are detachably connected to the outer frame, and a guiding mechanism is detachably connected to each spliced guide rail.

[0007] Preferably in any of the above solutions, the bottom of the base is fixed to the outside of both sides of the diaphragm wall groove wall by bolts.

[0008] Preferably in any of the above solutions, each spliced guide rail includes a plurality of connecting columns, any two adjacent connecting columns are connected by threads, and the guiding mechanism is detachably connected to the outer wall of the upper end of each connecting column.

[0009] Preferably, in any of the above solutions, a hollow groove horizontally penetrating the connecting column is provided on each of the connecting columns.

[0010] Preferably, in any of the above solutions, the spliced guide rail and the outer frame are detachably connected by inserting a pin into the hollow groove.

[0011] Preferably, in any of the above solutions, the 4 spliced guide rails are symmetrically arranged in groups of 2 about the center of the outer frame.

[0012] Preferably, in any of the above solutions, the 4 spliced guide rails are respectively arranged on the 4 sides of the outer frame.

[0013] Preferably, in any of the above solutions, the guiding mechanism includes a connecting frame, one end of the connecting frame is fixedly connected to the side wall of the connecting column, the other end is open, and a positioning component is detachably connected inside the open end of the connecting frame by a bolt.

[0014] Preferably, in any of the above solutions, the positioning component includes a connecting piece, one end of the connecting piece extends into the open end of the connecting frame and is detachably connected to the connecting frame, the other end of the connecting piece is fixedly connected with an installation frame, one side of the installation frame facing the steel reinforcement cage is open, an installation rod is connected to the open side of the installation frame, and a positioning wheel rotatable around the installation rod is provided on the installation rod.

[0015] As described above, a guiding device for hoisting the lower steel reinforcement cage of a foundation pit with an upper wall and a lower pile into a hole of the present utility model has the following

[0016] Beneficial effects:

[0017] 1. In the present utility model, the spliced guide rail and the guiding mechanism can play a very good guiding role in hoisting the steel reinforcement cage into the hole, ensure that the steel reinforcement cage does not shake during the process of being hoisted into the hole, improve the accuracy of alignment with the hole, and ensure the working efficiency and finished product rate of the upper wall and lower pile operation.

[0018] 2. In the present utility model, the guiding mechanism is connected to the spliced guide rail by bolts, and the distance between the positioning wheel and the steel reinforcement cage can be adjusted, so as to meet the guiding of steel reinforcement cages with different diameters.

[0019] 3. In the present utility model, the guide rail adopts a spliced guide rail, which can meet the hoisting guidance of the lower pile of the upper wall and lower pile retaining structure with different depths, and each component is detachably connected, which is convenient for the installation and disassembly of the device, and thus convenient for repeated use. Description of the Drawings

[0020] Figure 1 Shown is the front view of the present utility model.

[0021] Figure 2 Shown is the top view of the present utility model.

[0022] Description of Component Labels

[0023] 1 - Base; 2 - Split Rail; 21 - Connecting Column; 3 - Outer Frame; 4 - Guiding Mechanism; 41 - Connecting Frame; 42 - Connecting Piece; 43 - Mounting Frame; 44 - Mounting Rod; 45 - Positioning Wheel; 5 - Steel Cage; 6 - Bolt Specific Embodiment

[0024] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0025] Please refer to Figures 1 to 2 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0026] Please refer to Figures 1-2 , the present utility model provides a guiding device for hoisting and lowering the lower steel cage of a foundation pit with an upper wall and a lower pile into the hole, including a rectangular base 1, the top of the base 1 is detachably connected with an outer frame 3, and 4 split rails 2 are detachably connected to the outer frame 3, and a guiding mechanism 4 is detachably connected to each split rail 2.

[0027] When this embodiment is in use, in the prior art, during the hoisting process of the steel reinforcement cage 5, since the hole position is at a relatively deep position, it is difficult to keep the steel reinforcement cage 5 stable during the lowering process, and it is difficult to align with the hole, resulting in low accuracy of the steel reinforcement cage 5 entering the hole, low working efficiency of the upper wall and lower pile, and low yield. Therefore, it is necessary to guide the steel reinforcement cage 5 when it enters the hole to make it enter the hole as accurately as possible. Therefore, in this embodiment, a guiding device for hoisting the lower part of the steel reinforcement cage of the upper wall and lower pile foundation pit into the hole is proposed, which includes a base 1, an outer frame 3, a spliced guide rail 2 and a guiding mechanism 4. Among them, the base 1 is arranged on both sides of the diaphragm wall groove wall and is connected to the ground by bolts. The outer frame 3 is detachably connected to the base 1, and 4 spliced guide rails 2 are detachably connected to the outer frame 3. A guiding mechanism 4 is detachably connected to each of the spliced guide rails 2. The guiding mechanism 4 contacts the outer wall of the hoisted steel reinforcement cage 5, so that the steel reinforcement cage 5 is located between the 4 guiding mechanisms 4 during the hoisting process. The guiding mechanism 4 limits and guides the steel reinforcement cage 5, prevents the steel reinforcement cage 5 from shaking during the hoisting process, ensures the vertical lowering of the steel reinforcement cage 5, enables the steel reinforcement cage 5 to be smoothly lowered into the lower hole, improves the accuracy of the steel reinforcement cage 5 entering the hole, improves the working efficiency of the upper wall and lower pile, and ensures the yield.

[0028] In this embodiment, the base 1 is not limited to a rectangle, and other shapes can also be used, such as a triangle. A triangular outer frame 3 is detachably connected to the base 1. A set of spliced guide rails 2 are respectively detachably connected to the three sides of the outer frame 3 on the triangular outer frame 3. The guiding mechanism 4 is detachably connected to the spliced guide rails 2. The three groups of guiding mechanisms 4 are evenly distributed in the circumferential direction of the steel reinforcement cage 5 and contact the outer wall of the steel reinforcement cage 5.

[0029] In this embodiment, both the base 1 and the outer frame 3 are steel plates.

[0030] As a further description of the above embodiment, each of the spliced guide rails 2 includes several connecting columns 21. Any adjacent two connecting columns 21 are connected by threads. The guiding mechanism 4 is detachably connected to the outer wall of the upper end of each connecting column 21.

[0031] When this embodiment is in use, the spliced guide rail 2 is formed by threading several connecting columns 21, which can meet the hoisting guidance of the lower pile of the upper wall and lower pile retaining structure at different depths, and all components are detachable and can be reused.

[0032] In this embodiment, the connection between several connecting columns 21 is not limited to thread connection, and other connection methods that can achieve detachable connection between several connecting columns 21 can be used, such as inserting between any adjacent two connecting columns 21.

[0033] As a further description of the above embodiment, a hollow groove is formed in each connecting column 21 horizontally through the connecting column 21. The spliced guide rail 2 and the outer frame 3 are detachably connected by inserting a pin 6 into the hollow groove.

[0034] When in use in this embodiment, a connecting element (not shown in the figure) is fixedly connected to the outer frame 3. When the connecting column 21 is connected to the required height, the detachable connection between the outer frame 3 and the spliced guide rail 2 can be achieved by inserting a pin 6 into the hollow groove on the topmost connecting column 21 and the connecting element.

[0035] As a further description of the above embodiment, two of the four spliced guide rails 2 are symmetrically arranged about the center of the outer frame 3 in a group of two.

[0036] When in use in this embodiment, two spliced guide rails 2 form a group, so as to ensure that two groups of guiding mechanisms 4 are symmetrically arranged on both sides of the steel reinforcement cage 5. Two groups of guiding mechanisms 4 are arranged on each side of the steel reinforcement cage 5, which can effectively position and guide the steel reinforcement cage 5 and prevent the steel reinforcement cage 5 from shaking during the lowering process.

[0037] As a further description of the above embodiment, the four spliced guide rails 2 are respectively arranged on the four sides of the outer frame 3.

[0038] When in use in this embodiment, the four spliced guide rails 2 are evenly distributed at the centers of the four sides of the outer frame 3, so as to ensure that four groups of guiding mechanisms 4 are evenly distributed in the circumferential direction of the steel reinforcement cage 5. The four groups of guiding mechanisms 4 can effectively position and guide the steel reinforcement cage 5 and prevent the steel reinforcement cage 5 from shaking during the lowering process.

[0039] As a further description of the above embodiment, the guiding mechanism 4 includes a connecting frame 41. One end of the connecting frame 41 is fixedly connected to the side wall of the connecting column 21, and the other end is open. A positioning component is detachably connected in the open end of the connecting frame 41 through a bolt. The positioning component includes a connecting piece 42. One end of the connecting piece 42 extends into the open end of the connecting frame 41 and is detachably connected to the connecting frame 41. The other end of the connecting piece 42 is fixedly connected to an installation frame 43. One side of the installation frame 43 facing the steel reinforcement cage 5 is open. An installation rod 44 is connected to the open side of the installation frame 43. A positioning wheel 45 that can rotate around the installation rod 44 is provided on the installation rod 44.

[0040] When in use in this embodiment, the guiding mechanism 4 is connected to the guide rail through a bolt, and the distance between the positioning wheel 45 and the steel reinforcement cage 5 can be adjusted to meet the guiding of steel reinforcement cages 5 with different diameters. Specifically, the connecting frame 41 in the guiding mechanism 4 is fixed on the connecting column 21. A connecting piece 42 that can move along the length direction of the connecting frame 41 is arranged in the open end of the connecting frame 41. The other end of the connecting piece 42 extends out of the connecting frame 41 and then connects to the rotatable positioning wheel 45. When it is necessary to adjust the position of the positioning wheel 45 to meet the use requirements of steel reinforcement cages 5 with different diameters, the position of the connecting piece 42 can be moved.

[0041] Among them, a bolt (not shown in the figure) that is threadedly connected to the connecting frame 41 is connected to the top of the connecting frame 41. After passing through the top of the connecting frame 41, the bolt contacts the connecting member 42. When it is necessary to adjust the position of the positioning wheel 45, loosen the bolt and move the connecting member 42. After the connecting member 42 moves into place, tighten the bolt downward so that the bolt contacts the connecting member 42, thereby positioning the positioning wheel 45 and preventing the positioning wheel 45 from moving in the horizontal direction.

[0042] In summary, the working principle of the guiding device for lowering the lower steel cage of the foundation pit with upper wall and lower pile into the hole is as follows:

[0043] When lowering the lower steel cage 5 of the bored cast-in-place pile, first adjust the positions of the base 1 and the outer frame 3 and install them on the ground on both sides of the groove wall, and fix them with bolts at the bottom. Adjust the positions of the guiding mechanisms 4 and install them on the spliced guide rails 2. After the spliced guide rails 2 are spliced to a certain length, install them on the outer frame 3, and then the number of guide rail sections can be disassembled and increased as needed. During the process of lowering the steel cage 5, the four guiding mechanisms 4 assist the steel cage 5 to be lowered vertically, so that the steel cage 5 can be smoothly lowered into the lower hole.

[0044] In summary, the present utility model arranges two rows of parallel splicable guide rails on both sides of the diaphragm wall groove wall, and guiding mechanisms are connected to the guide rails. The guide rails and the guiding mechanisms have a very good guiding effect on the steel cage entering the hole, which can ensure that the steel cage does not shake during the process of entering the hole and improve the hole alignment accuracy. Therefore, the present utility model effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0045] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A guide device for hanging and placing a steel cage in a hole at the bottom of an upper wall and lower pile foundation pit, characterized in that: The invention comprises a rectangular base (1), the top of the base (1) is detachably connected to an outer frame (3), the outer frame (3) is detachably connected to four spliced ​​guide rails (2), and each of the spliced ​​guide rails (2) is detachably connected to a guide mechanism (4).

2. The guiding device for hoisting the steel cage into the hole at the bottom of the upper wall and lower pile foundation pit according to claim 1 is characterized in that: The bottom of the base (1) is fixed to the outside of both sides of the underground continuous wall groove by bolts.

3. The guiding device for hoisting the steel bar cage into the hole at the bottom of the upper wall and lower pile foundation pit according to claim 1 is characterized in that: Each of the spliced ​​guide rails (2) comprises a plurality of connecting columns (21), any two adjacent connecting columns (21) are connected via threads, and the upper outer wall of each of the connecting columns (21) can be detachably connected to the guide mechanism (4).

4. The guiding device for hoisting the steel cage into the hole at the bottom of the upper wall and lower pile foundation pit according to claim 3 is characterized in that: Each of the connecting columns (21) is provided with a hollow groove which horizontally penetrates the connecting column (21).

5. The guiding device for hoisting the steel bar cage into the hole at the bottom of the upper wall and lower pile foundation pit according to claim 4 is characterized in that: The spliced ​​guide rail (2) and the outer frame (3) are detachably connected by inserting a latch (6) into the hollow groove.

6. The guiding device for hoisting a steel cage into a hole at the bottom of an upper wall and lower pile foundation pit according to claim 1 is characterized in that: The four spliced ​​guide rails (2) are arranged in groups of two and are symmetrical about the center of the outer frame (3).

7. The guiding device for hoisting a steel cage into a hole at the bottom of an upper wall and lower pile foundation pit according to claim 1 is characterized in that: The four spliced ​​guide rails (2) are respectively arranged on four sides of the outer frame (3).

8. The guiding device for hoisting a steel cage into a hole at the bottom of an upper wall and lower pile foundation pit according to claim 4 is characterized in that: The guide mechanism (4) comprises a connection frame (41), one end of which is fixedly connected to the side wall of the connection column (21), and the other end of which is open, and a positioning assembly is detachably connected to the open end of the connection frame (41) via bolts.

9. The guiding device for hoisting a steel bar cage into a hole at the bottom of an upper wall and lower pile foundation pit according to claim 8, characterized in that: The positioning assembly comprises a connecting member (42), one end of the connecting member (42) extends into an open end of a connecting frame (41) and is detachably connected to the connecting frame (41), the other end of the connecting member (42) is fixedly connected to a mounting frame (43), the mounting frame (43) is open on one side facing the steel cage (5), a mounting rod (44) is connected to the open side of the mounting frame (43), and a positioning wheel (45) is provided on the mounting rod (44) which can rotate around the mounting rod (44).

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