CN220313707U - Novel prefabricated hollow square pile centrifugal forming die - Google Patents
Novel prefabricated hollow square pile centrifugal forming die Download PDFInfo
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- CN220313707U CN220313707U CN202321671109.9U CN202321671109U CN220313707U CN 220313707 U CN220313707 U CN 220313707U CN 202321671109 U CN202321671109 U CN 202321671109U CN 220313707 U CN220313707 U CN 220313707U
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- semisteel
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- steel mould
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000002787 reinforcement Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000004567 concrete Substances 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 239000011513 prestressed concrete Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The utility model belongs to the technical field of concrete pile molds, and relates to a novel prefabricated hollow square pile centrifugal forming mold, which comprises the following components: an upper half steel mould, a lower half steel mould and a bolt locking mechanism. The upper half steel mould and the lower half steel mould comprise a plurality of spliced and expandable units, the units are semi-tubular, flange connecting plates are arranged at two ends of the units, the upper half steel mould and the lower half steel mould are spliced through the flange connecting plates, and the upper half steel mould and the lower half steel mould are provided with bolt locking mechanisms. The special structure comprises arc grooves at four corners of the square forming die cavity and bumps at each side of the square forming die cavity. And a steel reinforcement cage is arranged in the molding die cavity, main ribs are arranged at two ends of the steel reinforcement cage, and detachable cover plates are arranged on flanges at two ends of the upper half steel die and the lower half steel die for plugging. The utility model has simple splicing and combination and higher pile supplying speed, can meet the requirement of construction progress and strengthen the pulling and compression resistant effects of the hollow square pile.
Description
Technical Field
The utility model belongs to the field of concrete pile processing, and particularly relates to a novel prefabricated hollow square pile centrifugal forming die.
Background
The reinforced concrete precast pile has the advantages of corrosion resistance, moisture resistance, leakage resistance and the like, and can be applied to foundation treatment to enhance the strength of a foundation and improve the overall stability of a building, and the advantages of moisture resistance and leakage resistance can also improve the influence of a humid environment on the building.
The pretensioned prestressed concrete hollow square pile is a hollow square concrete prefabricated component which is made up by using prestressed reinforced bars and high-performance concrete as main materials and adopting pretensioned prestressed centrifugal forming process and adopting steam curing process. Compared with the prestressed pipe pile, the pretensioned prestressed concrete hollow square pile can reduce the construction cost and the energy consumption, and is more in line with the national energy conservation and emission reduction policies. Compared with the tubular pile, under the condition that the basic bearing capacity is basically consistent, the square pile averagely saves 16.41 percent of concrete and 15.9 percent of steel, and the use cost of the concrete and the steel is generally more than 60 percent of that of the finished pile, so that the pretensioned prestressed concrete hollow square pile has fewer consumable materials compared with the tubular pile.
The square concrete pile capable of saving the concrete consumption and increasing the surface area of the pile body of the precast concrete pile is designed by the company, so that the cost is saved and the stability of a building foundation is increased. It is urgent to design a novel prefabricated hollow square pile centrifugal forming die, and mass and high-efficiency production of the pile body meets the social demands.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a novel prefabricated hollow square pile centrifugal forming die, reduce pile forming materials, simultaneously enhance the anti-pulling and anti-compression effects of the hollow square pile, and can be matched with a centrifugal groove, a casting machine and an autoclaved box to rapidly manufacture the concrete prefabricated hollow square pile.
The utility model adopts the following technical scheme: novel prefabricated hollow square pile centrifugal forming die includes: an upper half steel mould, a lower half steel mould and a bolt locking mechanism,
the upper half steel mould and the lower half steel mould comprise a plurality of spliced and expandable units which are semi-tubular, flange connecting plates are arranged at two ends of each unit, the upper half steel mould and the lower half steel mould are spliced through the flange connecting plates, the upper half steel mould and the lower half steel mould are provided with bolt locking mechanisms,
the inside shaping die cavity that is of upper half steel mould, lower half steel mould, shaping die cavity cross-section is square with special structure, special structure includes the arc wall in square shaping die cavity four corners, the lug on each limit of square shaping die cavity, the lug is one of the following: arc-shaped convex blocks, rectangular convex blocks and convex blocks with other shapes,
and a steel reinforcement cage is arranged in the molding die cavity, main ribs are arranged at two ends of the steel reinforcement cage, and detachable cover plates are arranged on flanges at two ends of the upper half steel die and the lower half steel die for plugging.
According to still another embodiment of the present utility model or the centrifugal molding die according to any one of the preceding embodiments, axial and circumferential reinforcing ribs are provided on the outer surfaces of the upper half steel die and the lower half steel die.
According to a further embodiment of the present utility model or the centrifugal molding die according to any one of the preceding embodiments, the bolt locking mechanism includes a bolt, a washer, and a nut, and locks through the connection holes on the upper half steel die and the lower half steel die.
According to still another embodiment of the present utility model or the centrifugal molding die of any one of the preceding embodiments, a connection portion between the arc-shaped protrusion and the rectangular protrusion and the inner walls of the upper semisteel die and the lower semisteel die is provided with a rounding.
The utility model has the beneficial effects that:
the novel prefabricated hollow square pile centrifugal forming die is simple in splicing and combining, high in pile supplying speed and capable of meeting the requirements of construction progress. The arc-shaped convex blocks and the rectangular convex blocks are arranged in the upper half steel die and the lower half steel die, so that pile forming materials can be reduced, and the anti-pulling and compression effects of the hollow square pile are enhanced.
Drawings
FIG. 1 is a schematic perspective view of a novel prefabricated hollow square pile centrifugal forming die;
fig. 2 is a schematic perspective view of a hollow square pile with a rectangular groove according to the utility model;
FIG. 3 is a schematic side view of a novel prefabricated hollow square pile centrifugal forming die provided with rectangular bumps;
FIG. 4 is a schematic perspective view of an upper die when a novel prefabricated hollow square pile centrifugal forming die is provided with rectangular bumps;
FIG. 5 is a schematic perspective view of a hollow square pile with an arc-shaped groove according to the utility model;
FIG. 6 is a schematic side view of a novel prefabricated hollow square pile centrifugal forming die provided with arc-shaped protruding blocks;
FIG. 7 is a schematic perspective view of an upper die when the novel prefabricated hollow square pile centrifugal forming die is provided with arc-shaped protruding blocks;
in the figure: 1. a lower half steel mould; 2. an upper half steel mould; 3. a molding cavity; 4. a bolt locking mechanism; 5. reinforcing ribs; 6. an arc-shaped groove; 7. arc-shaped protruding blocks; 8. rectangular protruding blocks; 9. and (5) a flange connecting plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, a novel prefabricated hollow square pile centrifugal forming die includes: an upper semisteel die 2, a lower semisteel die 1 and a bolt locking mechanism 4. The upper semisteel die 2 and the lower semisteel die 1 comprise a plurality of spliced and expandable units, the units are semi-tubular, flange connecting plates 9 are arranged at two ends of the units, the upper semisteel die 2 and the lower semisteel die 1 are spliced through the flange connecting plates 9, and the bolt locking mechanism 4 is arranged on the upper semisteel die 2 and the lower semisteel die 1. The outer surfaces of the upper semisteel die 2 and the lower semisteel die 1 are provided with axial and circumferential reinforcing ribs 5. The bolt locking mechanism 4 comprises bolts, gaskets and nuts, and penetrates through connecting holes on the upper semisteel die 2 and the lower semisteel die 1 to lock. The steel reinforcement cage is arranged in the molding die cavity 3, main ribs are arranged at two ends of the steel reinforcement cage, and detachable cover plates are arranged on flanges at two ends of the upper semisteel die 2 and the lower semisteel die 1 for plugging.
As shown in fig. 3, 4, 6 and 7, the inside of the upper semisteel die 2 and the lower semisteel die 1 is provided with a molding die cavity 3, the section of the molding die cavity 3 is square with a special structure, the special structure comprises arc-shaped grooves 6 at four corners of the square molding die cavity 3, and the bumps at each side of the square molding die cavity 3 are one of the following: arc lug 7, rectangle lug 8, the lug of other shapes, arc lug 7, rectangle lug 8 are provided with the radius with the junction of last semisteel die 2, lower semisteel die 1 inner wall.
The working principle of the utility model is as follows:
as shown in figures 1, 2 and 5, the novel prefabricated hollow square pile centrifugal forming die provided by the utility model is used for manufacturing the pretensioned prestressed concrete hollow square pile, and the method comprises feeding, centrifuging, cage winding, steam curing and the like from the stirring of concrete, mainly comprises mechanized operation, and has the advantages of high concrete strength of the pretensioned prestressed concrete hollow square pile, capability of reaching more than C60 and relatively high bearing capacity. The pile forming quality is good, the damage rate in transportation and construction is extremely low, and the engineering quality can be fully ensured. The centrifugal forming die adopts the approximately square reinforcement cage matched with the hollow square pile steel die, and the inner section of the die for forming is of a square structure. After the steel reinforcement framework is roll welded and formed, die filling is carried out, sand, stone, cement, water, additives and admixture are stirred according to the mixing proportion, after the steel reinforcement framework is installed, the lower half steel die 1 is evenly filled with mixed concrete along the die, then the upper half steel die 2 is hung above the lower half steel die 1, and the upper half steel die and the lower half steel die are fixed through bolts, so that the die is ensured not to loosen and concrete is not leaked in the high-speed hollow operation process. After prestress tensioning, the centrifugal forming die is lifted to the upper part of the centrifugal machine, the centrifugal forming die is accelerated step by step, and fresh concrete is uniformly compacted along the periphery of the die of the hollow square pile through a centrifugal compacting forming process. Pouring the generated wastewater, and then performing steam curing for a period of time.
As shown in figures 2, 5, 4 and 7, the novel prefabricated hollow square pile centrifugal forming die is characterized in that a forming die cavity 3 is arranged in an upper semisteel die 2 and a lower semisteel die 1, a plurality of arc-shaped convex blocks 7, rectangular convex blocks 8 or convex blocks with other shapes which are uniformly distributed in a circumferential direction are arranged on the inner side surface of the forming die cavity 3, arc-shaped, rectangular or other-shaped grooves are formed on the surface of a tubular pile after the hollow square pile is formed, the consumption of concrete is reduced, and the side friction resistance is in direct proportion to the side area of a pile body under the same engineering geological condition.
The foregoing has outlined and described the basic principles, features, and advantages of the present utility model. The front, back, left and right are not specific, and mainly used for more intuitively describing the technical scheme, and do not play a limiting role. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and the present utility model can be implemented by those skilled in the art without limiting the scope of the utility model, therefore, all equivalent changes or modifications that are made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (4)
1. Novel prefabricated hollow square pile centrifugal forming die includes: an upper semisteel die (2), a lower semisteel die (1) and a bolt locking mechanism (4),
the method is characterized in that: the upper semisteel die (2) and the lower semisteel die (1) comprise a plurality of spliced and expandable units which are semi-tubular, flange connecting plates (9) are arranged at two ends of each unit, the upper semisteel die (2) and the lower semisteel die (1) are spliced through the flange connecting plates (9), the upper semisteel die (2) and the lower semisteel die (1) are provided with bolt locking mechanisms (4),
the inner part of the upper semisteel die (2) and the lower semisteel die (1) is provided with a molding die cavity (3), the structure of the cross section of the molding die cavity (3) comprises arc grooves (6) at four corners of the square molding die cavity (3) and convex blocks at each side of the square molding die cavity (3), and the convex blocks are one of the following: an arc-shaped convex block (7) and a rectangular convex block (8),
the steel reinforcement cage is arranged in the molding die cavity (3), main ribs are arranged at two ends of the steel reinforcement cage, and detachable cover plates are arranged on flanges at two ends of the upper semisteel die (2) and the lower semisteel die (1) for plugging.
2. The novel prefabricated hollow square pile centrifugal forming die according to claim 1, wherein: the outer surfaces of the upper semisteel die (2) and the lower semisteel die (1) are provided with axial and circumferential reinforcing ribs (5).
3. The novel prefabricated hollow square pile centrifugal forming die according to claim 1, wherein: the bolt locking mechanism (4) comprises bolts, gaskets and nuts, and penetrates through connecting holes on the upper semisteel die (2) and the lower semisteel die (1) to lock.
4. The novel prefabricated hollow square pile centrifugal forming die according to claim 1, wherein: the connecting parts of the arc-shaped convex blocks (7) and the rectangular convex blocks (8) and the inner walls of the upper semisteel die (2) and the lower semisteel die (1) are provided with rounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321671109.9U CN220313707U (en) | 2023-06-29 | 2023-06-29 | Novel prefabricated hollow square pile centrifugal forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321671109.9U CN220313707U (en) | 2023-06-29 | 2023-06-29 | Novel prefabricated hollow square pile centrifugal forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220313707U true CN220313707U (en) | 2024-01-09 |
Family
ID=89425933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321671109.9U Active CN220313707U (en) | 2023-06-29 | 2023-06-29 | Novel prefabricated hollow square pile centrifugal forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220313707U (en) |
-
2023
- 2023-06-29 CN CN202321671109.9U patent/CN220313707U/en active Active
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