Concrete special-shaped precast pile mold and special-shaped precast pile

Abstract

The utility model provides a concrete special-shaped precast pile mold and a special-shaped precast pile. The concrete special-shaped precast pile mold comprises a mold body and a tensioning plate assembly. Tensioning plate assemblies are installed at the two ends of the mold body respectively, and a triangular prism mold plate stretching into the mold cavity is arranged on the tensioning plate assembly on at least one side and used for forming a cylindrical section. One end of the triangular prism template is provided with a square-round rotating template which is used for forming a transition section between a cylindrical section and a square pile main body; according to the utility model, the square-round rotating template is arranged on the tensioning plate assembly, so that the production efficiency can be improved, accessories do not need to be arranged in a die cavity, the using structural strength of the die is not influenced, and the service life of the die is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of building material production, and particularly relates to a special-shaped precast concrete pile mold and a special-shaped precast pile. Background Art

[0002] When producing round-end special-shaped concrete prestressed hollow square piles, the existing hollow square molds and tensioning accessories need to be modified for production use. Currently, the common method of using a conventional structure precast pile mold to modify and produce special-shaped precast piles is to modify the mold cavity of the mold, weld or bolt the square-round conversion module into the mold, and configure corresponding special-shaped pile tensioning accessories for production operations to form precast piles with special-shaped structures.

[0003] Both of the above-mentioned welding and bolt connection methods require modifying the mold, thus increasing the processing and manufacturing costs, reducing the turnover efficiency of the mold, and having an irreversible impact on the damage of the mold. There is a rigid-flexible connection type concrete precast pile mold in the prior art. When manufacturing special-shaped piles, the special-shaped pile module is connected to the existing mold by bolts or welding. It takes a certain amount of man-hours and materials to process the mold, and the mold needs to be processed again during subsequent restoration. This not only increases the mold modification cost and the mold idle time, but also causes certain damage to the mold.

[0004] In addition, the special-shaped section forming module is installed in the mold cavity in advance, which needs to be determined according to the length of the precast pile to be manufactured. Once there is an installation error, it will cause leakage at least at one end of the end plate during the pouring process, and the slurry will leak into the tensioning component, and even affect the quality of tensioning. Summary of the Invention

[0005] Aiming at the deficiencies existing in the prior art, the utility model provides a special-shaped precast concrete pile mold and a special-shaped precast pile. By installing a square-round conversion template on the tensioning plate assembly, the production efficiency can be improved, and there is no need to install accessories in the mold cavity, which does not affect the structural strength of the mold during use and maintains the service life of the mold.

[0006] The utility model realizes the above technical purpose through the following technical means.

[0007] A special-shaped precast concrete pile mold includes a mold body and a tensioning plate assembly; the tensioning plate assemblies are respectively installed at both ends of the mold body, and at least one side of the tensioning plate assembly is provided with a triangular prism template extending into the mold cavity for forming a cylindrical section; one end of the triangular prism template is provided with a square-round conversion template for forming a transition section between the cylindrical section and the square pile main body; by installing the square-round conversion template on the tensioning plate assembly, the production efficiency can be improved, and there is no need to install accessories in the mold cavity, which does not affect the structural strength of the mold during use and maintains the service life of the mold.

[0008] Furthermore, the cross-section at one end of the square-round transformation template is a right triangle; the cross-section at the other end of the square-round transformation template is a point or an arc surface; the two right sides of the right triangle cross-section extend towards the cross-section at the other end of the square-round transformation template to form two perpendicular side surfaces, and the hypotenuse of the right triangle cross-section extends towards the cross-section at the other end of the square-round transformation template to form a transition surface.

[0009] Furthermore, the hypotenuse of the right triangle is arc-shaped, and the hypotenuse of the right triangle cross-section extends towards the cross-section at the other end of the square-round transformation template to form a transition arc surface.

[0010] Furthermore, one end of the square-round transformation template with a right triangle cross-section is connected to the triangular prism template, and the other end of the square-round transformation template is inserted into the mold cavity.

[0011] Furthermore, the square-round transformation template is a welded assembly, and the inside of the square-round transformation template is hollow.

[0012] Furthermore, 4 of the square-round transformation templates are respectively arranged on the tension plate assembly through the triangular prism template. The right triangle cross-sections of the 4 square-round transformation templates form the 4 corners of a rectangle; the hypotenuses of the right triangles of the 4 square-round transformation templates are used to position the circular end plate.

[0013] Furthermore, the cross-section of the triangular prism template is the same as or similar to the cross-section at one end of the square-round transformation template. Similar is understood as similar triangles, so that the formed cylindrical section has a taper.

[0014] Furthermore, the square-round transformation template and the triangular prism template are integrally formed.

[0015] Furthermore, the tension plate assembly includes a tension plate and a tension screw. The triangular prism template is installed on the tension plate, and the tension screw is connected to the tension plate.

[0016] Furthermore, the tension plate assembly includes a tension plate, a clamp, an end plate connecting plate and a tension screw; the tension plate is connected to the end plate connecting plate through the clamp; the tension screw is connected to the tension plate, and the triangular prism template is installed on the end plate connecting plate.

[0017] A concrete special-shaped precast pile, a special-shaped precast pile produced by using a concrete special-shaped precast pile mold.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. For the concrete special-shaped precast pile mold and the special-shaped precast pile of the present utility model, by installing the square-round transformation template on the tension plate assembly, the production efficiency can be improved, and it is not necessary to install accessories in the mold cavity, which does not affect the structural strength of the mold during use and maintains the service life of the mold.

[0020] 2. In the concrete special-shaped precast pile mold and the special-shaped precast pile of the present utility model, since the square-round transformation template is installed on the tension plate assembly, it is possible to avoid the slurry leakage inside the tension assembly caused by directly installing the square-round transformation template in the mold cavity.

[0021] 3. In the concrete special-shaped precast pile mold and the special-shaped precast pile of the present utility model, one end of the square-round transformation template connected to the tension plate assembly is provided with a triangular prism template for forming the cylindrical section between the circular end plate and the transition section, which can meet the needs of different special-shaped precast piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. The drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, it is obvious that other drawings can also be obtained according to these drawings.

[0023] Figure 1 It is an exploded view of the concrete special-shaped precast pile mold of the present utility model.

[0024] Figure 2 It is the front tension plate group of Embodiment 1 of the present utility model.

[0025] Figure 3 It is the front tension plate group of Embodiment 2 of the present utility model.

[0026] Figure 4 It is the rear tension plate group of Embodiment 1 of the present utility model.

[0027] Figure 5 It is the three views of Embodiment 1 of the square-round transformation template of the present utility model.

[0028] Figure 6 It is the three views of Embodiment 2 of the square-round transformation template of the present utility model.

[0029] Figure 7 It is the three views of the integral of the square-round transformation template and the triangular prism template of the present utility model.

[0030] Figure 8 It is the partial view of the special-shaped precast pile of the present utility model.

[0031] In the figure:

[0032] 1 - Round - ended hollow square pile; 101 - Concrete pile body; 102 - Round end plate; 103 - Transition section; 104 - Cylindrical section; 2 - Lower mold; 3 - Upper mold; 4 - Front tension plate group; 401 - Front tension plate; 402 - Tension screw; 403 - Clamp; 404 - End - plate connecting plate; 405 - Connecting bolt; 5 - Rear tension plate group; 501 - Rear tension plate; 6 - Square - to - round transformation template; 601 - End face; 602 - Transition arc surface; 603 - Side face; 604 - Transition surface; 7 - Triangular prism template. Detailed implementation manners

[0033] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as a limitation to the present utility model.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0035] }]In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] As Figure 1As shown in the figure, the special-shaped precast concrete pile mold of the present utility model includes a mold body and a tensioning plate assembly; the mold body includes an upper mold 3 and a lower mold 2, and a mold cavity is formed after the upper mold 3 and the lower mold 2 are closed; both ends of the mold body are respectively installed with a front tensioning plate assembly 4 and a rear tensioning plate assembly 5; a triangular prism template 7 extending into the mold cavity is provided on the front tensioning plate assembly 4 or / and the rear tensioning plate assembly 5 for forming a cylindrical section 104; one end of the triangular prism template 7 is provided with a square-round transition template 6 for forming a transition section 103 between the cylindrical section 104 and the square pile body. Generally, the two ends of the precast pile are symmetric structures, so square-round transition templates 6 are installed on both the front tensioning plate assembly 4 and the rear tensioning plate assembly 5. However, for some special precast piles with asymmetric structures at both ends, the square-round transition template 6 is installed on either the front tensioning plate assembly 4 or the rear tensioning plate assembly 5. By installing the square-round transition template on the tensioning plate assembly, the production efficiency can be improved, and there is no need to install accessories in the mold cavity, which does not affect the structural strength of the mold and maintains the service life of the mold.

[0037] As Figure 5 Embodiment 1 of the square-round transition template 6 of the present utility model is shown. For the convenience of description, one end of the square-round transition template 6 is set as end A and the other end is set as end B in the figure. The cross-section of end A is a right triangle, denoted as △abc; the hypotenuse of the right triangle is bc, and ∠bac is a right angle; ideally, the cross-section of end B is a point, but due to the limitation of processing technology, end B may have a certain plate thickness, so its cross-section is an arc surface. The two right sides of the right triangle cross-section respectively extend towards the cross-section of end B to form two perpendicular side surfaces 603, and the hypotenuse bc respectively extends towards the cross-section of end B to form a transition surface 604. Considering the aesthetics of the transition section of the precast pile to be made, the edges and corners of the square-round transition template 6 are smoothly transitioned. The end A of the square-round transition template 6 is connected to the triangular prism template 7, and the end B of the square-round transition template 6 is inserted into the mold cavity.

[0038] As Figure 6 Embodiment 2 of the square-round transition template 6 of the present utility model is shown. On the basis of Embodiment 1, the hypotenuse bc of the right triangle is arc-shaped, and the hypotenuse bc respectively extends towards the cross-section of end B to form a transition arc surface 602.

[0039] As Figure 1 As shown in the figure, 4 of the square-round transition templates 6 are respectively arranged on the tensioning plate assembly through the triangular prism template 7, and the right triangle cross-sections of the 4 square-round transition templates 6 form the 4 corners of a rectangle; the hypotenuses of the right triangles of the 4 square-round transition templates 6 are used to position the circular end plate. And the arc-shaped hypotenuse of the right triangle can more accurately position the circular end plate.

[0040] For the convenience of production and manufacturing, the square-round transformation template 6 is generally a fabricated weldment, which is composed of 4 panels spliced together; the 4 panels are respectively an end plate, a transition plate and a side plate. The shape of the end plate is the cross-sectional shape of end A. The end plate is used to form the end face 601 of the square-round transformation template 6. The side plate is used to form the side face 603 of the square-round transformation template 6. The transition plate is used to form the transition surface 604 of the square-round transformation template 6. In Embodiment 1 of the square-round transformation template 6, the transition plate is a flat plate, which can form the transition surface 604. In Embodiment 2 of the square-round transformation template 6, the transition plate is a transition arc plate, which can form the transition arc surface 602. Since the fabricated weldment is prone to deformation after welding and the edges and corners cannot be polished completely smooth, in the embodiment, the square-round transformation template 6 can also be a cast steel part. The inside of the square-round transformation template 6 is hollow, which can reduce the weight of the square-round transformation template 6.

[0041] As Figure 8 shown, the triangular prism template 7 connected to the tensioning plate assembly is used to form the cylindrical section 104 between the circular end plate and the transition section. As Figure 7 shown, the cross-section of the triangular prism template 7 is the same as the cross-section of one end of the square-round transformation template 6, that is, the cross-section is a right triangle, or it can be a right triangle with an arc hypotenuse. When the cross-section of the triangular prism template 7 is the same as the cross-section of one end of the square-round transformation template 6, the formed cylindrical section 104 is cylindrical. In another embodiment, the cylindrical section 104 has a taper, that is, it is a frustum of a cone. Then the cross-section of the triangular prism template 7 and the cross-section of one end of the square-round transformation template 6 are similar triangles, that is, the cross-sections at both ends of the triangular prism template 7 gradually change in proportion. As Figure 7 shown, for the convenience of manufacturing, the square-round transformation template 6 and the triangular prism template 7 are integrally formed.

[0042] The front tensioning plate assembly 4 of Embodiment 1, as Figure 2 shown, the front tensioning plate assembly 4 includes a front tensioning plate 401 and a tensioning screw 402. The triangular prism template 7 is installed on the front tensioning plate 401. The tensioning screw 402 is connected to the front tensioning plate 401. The triangular prism template 7 can be welded and fixed on the front tensioning plate 401, or can be fixedly installed by bolts. The tensioning screw 402 is connected and tightened through the threaded hole of the front tensioning plate 401. During production and use, the front tensioning plate assembly 4 moves axially back and forth as a whole in the mold cavity and is connected to the circular pile end plate 102 on the steel reinforcement cage.

[0043] The front tensioning plate assembly 4 of Embodiment 2, as Figure 3As shown in the figure, the front tension plate assembly 4 includes a front tension plate 401, a clamp 403, an end plate connecting plate 404, and a tension screw 402; the front tension plate 401 is connected to the end plate connecting plate 404 through the clamp 403; the tension screw 402 is connected to the front tension plate 401, and a triangular prism formwork 7 is installed on the end plate connecting plate 404. The clamp 403 is symmetrically divided into two halves up and down, and a mounting plate is installed on the clamp. Connecting bolts can be used to firmly connect the clamp 403 to the triangular prism formwork 7. During production and use, first, firmly connect the end plate connecting plate 404 to the round pile end plate 102 on the steel reinforcement cage through bolts. After placing the triangular prism formwork 7 in place, the lower half of the clamp is used to hold the end plate connecting plate 404 in its slot, the front tension plate 401 is placed in the clamp slot, and then the upper half of the clamp is used to hold the end plate connecting plate 404 and the front tension plate 401. The end plate connecting plate 404 and the front tension plate 401 respectively have frustums with different outer diameters for being placed and clamped in the clamp slot. The square-round conversion formwork 6 is screwed tightly to the clamp 403 using the connecting bolt 405. When demoulding, reverse the above operations to disassemble the triangular prism formwork 7 and the upper half of the clamp in sequence, facilitating the lifting out of the pile.

[0044] As Figure 4 shown, the front tension plate assembly 5 includes a rear tension plate 501, and the triangular prism formwork 7 can be fixedly welded to the rear tension plate 501 or can be fixedly installed by bolts.

[0045] When the present utility model is used to transform a conventional prestressed square mold, a square-round transition conversion formwork 6 and a triangular prism formwork 7 are fabricated and installed on the front tension plate group 4 and the rear tension plate group 5 of the mold by welding or bolt fastening, etc., to form a cavity that can wrap the head and tail ends of a round-ended square pile. Concrete is poured into the mold, and after forming, a concrete member with a square-round transition is obtained. Specifically:

[0046] First, clean the upper mold 3 and the lower mold 2, and perform operations such as spraying a demoulding agent and installing the steel reinforcement cage on the mold according to the production process flow. Circular end plates 102 are installed at the front and rear ends of the steel reinforcement cage. The entire steel reinforcement cage is lifted into the bottom mold, and the front tension plate group 4 and the rear tension plate group 5 are axially pushed into the mold. The circular end plates 102 at both ends are respectively firmly connected to the front tension plate group 4 and the rear tension plate group 5 through bolts. Adjust the front tension plate group 4 and the rear tension plate group 5 so that they are completely clamped into the cavities of the upper and lower molds, and then tightly close the mold for operations such as feeding and curing.

[0047] When demoulding a precast pile, lift off the upper mold of the hollow square pile, remove the bolts for fastening the tension plate group and the circular end plate, axially pull out the tension plate group from the bottom mold of the square pile, so that both ends of the hollow square pile can completely break away from the wrapping space of the front and rear tension plate groups, and then lift the pile out of the mold.

[0048] As Figure 8As shown, a special-shaped precast concrete pile, which is a special-shaped precast pile produced by using the special-shaped precast concrete pile mold described above. In the embodiment, the special-shaped precast concrete pile is a round-ended hollow square pile 1, and the round-ended hollow square pile 1 includes a concrete pile body 101, a cylindrical section 104, a transition section 103, and a circular end plate 102. The cross-section of the concrete pile body 101 is a hollow square cross-section. The two ends of the concrete pile body 101 are respectively connected to the cylindrical section 104 through the transition section 103, and the circular end plate 102 is installed at the outer end of the cylindrical section 104. The cylindrical section 104 can be cylindrical or frustum-shaped.

[0049] It should be understood that although this specification is described according to various embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0050] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A special-shaped precast concrete pile mold, comprising a mold body and a tension plate assembly; the tension plate assemblies are respectively installed at both ends of the mold body, and it is characterized in that, On at least one side of the tensioning plate assembly, there is a triangular prism formwork (7) extending into the mold cavity for forming the cylindrical section; one end of the triangular prism formwork (7) is provided with a square-round transition formwork (6) for forming the transition section between the cylindrical section and the square pile body.

2. The concrete special-shaped precast pile mold according to claim 1, characterized in that, One end of the square-round transition formwork (6) has a right-angled triangle cross-section; the other end of the square-round transition formwork (6) has a point or arc surface cross-section; the two right-angled sides of the right-angled triangle cross-section extend towards the cross-section of the other end of the square-round transition formwork (6) to form two perpendicular side surfaces (603), and the hypotenuse of the right-angled triangle cross-section extends towards the cross-section of the other end of the square-round transition formwork (6) to form a transition surface (604).

3. The concrete special-shaped precast pile mold according to claim 2, characterized in that, The hypotenuse of the right-angled triangle is arc-shaped, and the hypotenuse of the right-angled triangle cross-section extends towards the cross-section of the other end of the square-round transition formwork (6) to form a transition arc surface (602).

4. The concrete special-shaped precast pile mold according to claim 2, characterized in that, One end of the square-round transition formwork (6) with a right-angled triangle cross-section is connected to the triangular prism formwork (7), and the other end of the square-round transition formwork (6) is inserted into the mold cavity.

5. The concrete special-shaped precast pile mold according to claim 2, wherein, The square-round transition formwork (6) is a welded assembly, and the inside of the square-round transition formwork (6) is hollow.

6. The concrete special-shaped precast pile mold according to claim 2, wherein 4 of the square-round transition formworks (6) are respectively arranged on the tensioning plate assembly through the triangular prism formwork (7), and the right-angled triangle cross-sections of the 4 square-round transition formworks (6) form the 4 corners of a rectangle; the hypotenuses of the right-angled triangles of the 4 square-round transition formworks (6) are used to position the circular end plate.

7. The concrete special-shaped precast pile mold according to claim 2, wherein, The cross-section of the triangular prism formwork (7) is the same as or similar to the cross-section of one end of the square-round transition formwork (6).

8. The concrete special-shaped precast pile mold according to claim 1, characterized in that, The square-round transition formwork (6) and the triangular prism formwork (7) are integrally formed.

9. The concrete special-shaped precast pile mold according to claim 1, characterized in that, The tensioning plate assembly includes a tensioning plate and a tensioning screw (402), the triangular prism formwork (7) is installed on the tensioning plate, and the tensioning screw (402) is connected to the tensioning plate.

10. The concrete special-shaped precast pile mold according to claim 1, characterized in that, The tensioning plate assembly includes a tensioning plate, a clamp (403), an end plate connecting plate (404) and a tensioning screw (402); the tensioning plate is connected to the end plate connecting plate (404) through the clamp (403); the tensioning screw (402) is connected to the tensioning plate, and the triangular prism formwork (7) is installed on the end plate connecting plate (404).

11. A special-shaped precast concrete pile, characterized in that, A special-shaped precast pile produced by using the special-shaped precast concrete pile mold according to any one of claims 1-10.

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