Cleaning-free reusable prefabricated hollow square pile plugging device

Abstract

The utility model discloses a cleaning-free reusable prefabricated hollow square pile plugging device which comprises a buckling steel plate used for being buckled at the end of a hollow square pile and further comprises a filling air bag and a rope structure used for positioning the filling air bag, the filling air bag is arranged on the buckling steel plate, an air hole communicated with the filling air bag is formed in the buckling steel plate, and the rope structure is arranged on the rope structure. An air plug is arranged in the air hole; the rope structure is arranged on the buckling steel plate, and the filling air bag is located in the rope structure. The air bag is inflated by buckling the air hole in the steel plate until the air bag expands to fill the pile hole, the air plug is plugged in the air hole after inflation is completed, the air plug in the air hole is pulled out after excavation, the air bag is deflated, and then the steel plate is taken down, so that the process of cleaning the hole is omitted; the plugging device is simple in structure, good in plugging effect and easy and convenient to take and place, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a plugging device for precast hollow square piles that can be reused without cleaning. Background Art

[0002] The hollow square pile is a concrete pipe pile. Currently, for the hollow square piles used in building construction, after excavation, plugging treatment needs to be carried out. Its anti-pulling capacity is 3 meters and the compressive capacity is 1.5 meters. After excavation, the inside of the hollow square pile needs to be cleared of holes. However, the existing technology is not convenient for hole cleaning, thus affecting the construction efficiency.

[0003] Currently, plugging structures are also used to avoid subsequent cleaning. For example, a new type of centrifugal forming mold for precast hollow square piles disclosed in Patent CN220313707U includes: an upper half steel mold, a lower half steel mold, and a bolt locking mechanism. The upper half steel mold and the lower half steel mold include a plurality of spliced and expandable units. The unit is semi-tubular, with flange connecting plates provided at both ends. The upper half steel mold and the lower half steel mold are spliced through the flange connecting plates. The upper half steel mold and the lower half steel mold are provided with a bolt locking mechanism. The inside of the upper half steel mold and the lower half steel mold is a forming cavity. The special structure includes arc grooves at the four corners of the square forming cavity and convex blocks on each side of the square forming cavity. A steel reinforcement cage is installed in the forming cavity. Main reinforcement bars are installed at both ends of the steel reinforcement cage. Removable covers are installed on the flanges at both ends of the upper half steel mold and the lower half steel mold for plugging. It only uses the cover for plugging, and the plugging effect is not good. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a plugging device for precast hollow square piles that can be reused without cleaning, so as to achieve the purpose of good plugging effect and convenient taking and placing.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] The plugging device for precast hollow square piles that can be reused without cleaning includes a buckling steel plate for buckling at the end of the hollow square pile, and also includes a stuffing airbag and a rope structure for positioning the stuffing airbag. The stuffing airbag is arranged on the buckling steel plate. An air hole communicating with the stuffing airbag is arranged on the buckling steel plate, and an air plug is arranged in the air hole. The rope structure is arranged on the buckling steel plate, and the stuffing airbag is located inside the rope structure.

[0007] Furthermore:

[0008] Both the stuffing airbag and the rope structure are arranged on the back surface of the buckling steel plate.

[0009] The stuffing airbag includes an airbag body and a fixing ring. The edge of the airbag body is fixed on the buckling steel plate through the fixing ring.

[0010] One end of the air plug inserted into the air hole is a conical structure.

[0011] The rope structure includes two positioning single ropes in a cross shape, and the ends of the positioning single ropes are connected to the fastening steel plate by screws.

[0012] The fixing ring is a circular ring, and the fixing ring is fixed on the fastening steel plate by a fastener.

[0013] A grasping groove is provided on the outer edge of the other end of the air plug.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] The precast hollow square pile plugging device that can be reused without cleaning has a reasonable structural design. The air bag is inflated through the air hole on the fastening steel plate until the air bag expands and fills the pile hole. After inflation, an air plug is inserted into the air hole. When excavating, the air plug in the air hole is pulled out, the air in the air bag is released, and then the steel plate is removed, thus eliminating the process of cleaning the hole; its structure is simple, the plugging effect is good, and it is convenient to take and place, thereby improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following briefly describes the content expressed in each drawing of this specification and the marks in the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the device of the present utility model.

[0018] Figure 2 It is a schematic diagram of the inner side of the steel plate of the present utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the air plug of the present utility model.

[0020] Figure 4 It is a schematic diagram of the structure of the present utility model without the air plug installed.

[0021] Figure 5 It is a top view of the present utility model without the air plug installed.

[0022] Figure 6 Along Figure 5 The sectional view taken along A-A in

[0023] In the figure:

[0024] 1. Fastening steel plate; 11. Air hole; 2. Packing air bag; 21. Fixing ring; 3. Air plug; 31. Grasping groove; 4. Rope; 41. Positioning single rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings through the description of the embodiments.

[0026] As Figures 1 to 6 shown, the prefabricated hollow square pile plugging device that can be reused without cleaning includes a buckling steel plate 1 for buckling at the end of the hollow square pile, a stuffing airbag 2 for expanding and stuffing the pile hole, and a rope structure for positioning the stuffing airbag.

[0027] Both the stuffing airbag 2 and the rope structure are arranged on the back surface of the buckling steel plate. The rope structure is arranged on the buckling steel plate, and the stuffing airbag is located inside the rope structure. The rope is arranged on the outside of the airbag and is connected to the back surface of the buckling steel plate and is used to restrain the inflated airbag body, and the structure is stable and reliable.

[0028] The buckling steel plate is provided with an air hole 11 communicated with the stuffing airbag. An air plug 3 is arranged in the air hole, and the on-off of the air hole is controlled by the air plug; one end of the air plug 3 inserted into the air hole is a conical structure, which is convenient for inserting into the air hole; a grasping groove 31 is arranged on the outer edge of the other end of the air plug 3; preferably, the grasping grooves are two rectangular grooves arranged oppositely, which is convenient for operation.

[0029] The stuffing airbag includes an airbag body and a fixing ring 21. The edge of the airbag body is fixed on the buckling steel plate through the fixing ring. Further, the fixing ring is a circular ring, and the fixing ring is fixed on the buckling steel plate through a fastener, which is convenient for disassembly and assembly.

[0030] The rope structure includes two positioning single ropes 41 in a cross shape. The ends of the positioning single ropes are connected to the buckling steel plate through screws.

[0031] The device of the present utility model has a reasonable structural design. The airbag is inflated through the air hole on the buckling steel plate until the airbag expands and stuffs the pile hole. After inflation, the air plug is inserted into the air hole. When excavating, the air plug in the air hole is pulled out, the airbag is deflated, and then the steel plate is removed, thus eliminating the process of cleaning the hole; its structure is simple, the plugging effect is good, and it is convenient to take and place, thereby improving the construction efficiency.

[0032] A preferred specific embodiment of the present utility model is:

[0033] The present utility model provides a temporary plugging device for the core filling of prefabricated hollow square piles that can be reused without cleaning, including a buckling steel plate 1, a stuffing airbag 2 and a rope 4. The stuffing airbag 2 is arranged at the bottom of the steel plate 1. The buckling steel plate 1 is provided with an air hole 11 communicated with the stuffing airbag 2. An air plug 3 is inserted into the air hole 11. The rope is arranged on the outside of the airbag 2 and is connected to the bottom of the steel plate 1 and is used to restrain the inflated airbag 2.

[0034] It should be noted that a fixing ring 21 is arranged along the circumference of the stuffing airbag 2. The fixing ring 21 is connected to the buckling steel plate 1 through a screw, which is convenient for fixing the airbag on the steel plate.

[0035] In addition, the rope includes two positioning single ropes 41 that cross each other. The end of each single rope is connected to the steel plate by screws, which facilitates the fixation of the rope on the steel plate.

[0036] In addition, one end of the air plug 3 inserted into the air hole 11 is a conical structure, which facilitates the insertion of the air plug 3 into the air hole 11. The air plug 3 is also provided with a grasping groove 31, which facilitates the extraction of the air plug 3 from the air hole 11.

[0037] When the utility model is actually applied, the airbag is placed in the pile hole at the tail of the hollow square pile, the steel plate is detachably connected and buckled to the hollow square pile, the airbag is inflated through the air hole on the steel plate until the airbag expands to fill the pile hole, after inflation, the air hole is plugged with an air plug, when excavated, the air plug in the air hole is pulled out, the airbag is deflated, and then the steel plate can be removed.

[0038] The above is only a description of the preferred embodiments of the present utility model, and the above technical features can be arbitrarily combined to form multiple embodiment schemes of the present utility model.

[0039] The present utility model has been described exemplarily above with reference to the drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the concept and technical scheme of the present utility model, or the concept and technical scheme of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A cleaning-free and reusable prefabricated hollow square pile plugging device, comprising a buckling steel plate for buckling at the end of the hollow square pile, characterized in that: It also includes a stuffing airbag and a rope structure for positioning the stuffing airbag. The stuffing airbag is arranged on a buckled steel plate. The buckled steel plate is provided with an air hole connected to the stuffing airbag, and an air plug is provided in the air hole. The rope structure is arranged on the buckled steel plate, and the stuffing airbag is located in the rope structure.

2. The cleaning-free and reusable prefabricated hollow square pile plugging device according to claim 1 is characterized in that: The stuffing airbag and the rope structure are both arranged on the back side of the buckled steel plate.

3. The cleaning-free and reusable prefabricated hollow square pile plugging device as claimed in claim 1, characterized in that: The stuffing airbag comprises an airbag body and a fixing ring, and the edge of the airbag body is fixed on the gusset steel plate through the fixing ring.

4. The cleaning-free and reusable prefabricated hollow square pile plugging device according to claim 1 is characterized in that: One end of the air plug inserted into the air hole is a conical structure.

5. The cleaning-free and reusable prefabricated hollow square pile plugging device according to claim 1, characterized in that: The rope structure comprises two cross-shaped positioning single ropes, and the ends of the positioning single ropes are connected to the buckled steel plates through screws.

6. The cleaning-free and reusable prefabricated hollow square pile plugging device as claimed in claim 3, characterized in that: The fixing ring is a circular ring, and the fixing ring is fixed on the buckling steel plate by fasteners.

7. The cleaning-free and reusable prefabricated hollow square pile plugging device as claimed in claim 4, characterized in that: A gripping groove is arranged on the outer edge of the other end of the air plug.

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