Concrete pile wall forming mold

Abstract

This invention discloses a concrete pile wall forming mold, comprising a first forming part, a second forming part, and a bottom mold supporting the first and second forming parts. The first forming part includes at least one first template with deformation recovery function and at least one rigid second template that can support the first template. The first template is at least adaptable to the end profile of one side of the female splice end in the thickness direction of the concrete pile wall. The second template adapts to the remaining end profiles of the female splice end, and at least one end can enter and exit the first template. The forming surface of the first forming part forms a locking forming part one that is recessed in the thickness direction of the precast concrete pile wall at least at a predetermined distance from the end face of the female splice end. The second forming part includes at least two detachably connected sub-templates, at least one of which is a rigid plate. The forming surface of the at least one sub-template forms a locking forming part two that adapts to the locking forming part one. This invention can form a concrete pile wall forming mold with a lateral locking function.

Description

Technical Field

[0001] This invention relates to the field of concrete pile wall manufacturing, and more particularly to a concrete pile wall forming mold. Background Technology

[0002] In building construction, precast components are widely used in water conservancy projects, river and waterway improvement projects, municipal drainage projects, roadbed support, urban underground foundation pit support, tidal flat reclamation, and marine wave damping projects, as well as slope protection projects. With increasing market application and technological maturity, the variety of precast component products is growing. Simply put, precast components can be divided into two types: cast-in-place and precast. The prior art discloses a mold for producing prestressed concrete hollow support piles. The mold is a hollow tubular steel mold with a polygonal inner cavity and open ends, consisting of four parts: an arc-shaped upper mold, an arc-shaped lower mold, a mortise strip, and a tenon strip. The splicing surfaces of the upper and lower molds are provided with mortise grooves and tenon grooves parallel to the mold axis. A mortise strip is set in the mortise groove, and a tenon strip is set in the tenon groove. The mortise strip is set on the inner edge of the splicing surface on one side of the upper and lower molds, and the part of it exposed on the inner surface of the mold is semi-cylindrical or isosceles trapezoidal. The tenon strip is divided into an upper tenon strip and a lower tenon strip, which are respectively set on the inner edge of the splicing surface on the other side of the upper and lower molds. After the upper tenon strip and the lower tenon strip are spliced, they form a semi-circular groove or an isosceles trapezoidal groove.

[0003] However, the support piles formed by using the above molds are only support piles that abut against each other, and cannot be formed support piles that can be interlocked with each other. The connection stability between the support piles formed is poor. Summary of the Invention

[0004] The purpose of this invention is to provide a concrete pile wall forming mold. This concrete pile wall forming mold is used to form concrete pile walls with interlocking functions.

[0005] To achieve the above objectives, the present invention provides a concrete pile wall forming mold, comprising a first forming part, a second forming part, and a bottom mold supporting the first forming part and the second forming part. The first forming part, the second forming part, and the bottom mold are combined to form an open forming mold cavity. The first forming part is used to form the female splice end of the concrete pile wall, and the second forming part is used to form the male splice end of the concrete pile wall. The first forming part includes at least one first template with deformation and recovery function and at least one second template with rigidity and capable of supporting the first template. The first template is at least adaptable to the female splice end. On one side of the end profile in the thickness direction of the concrete pile wall, the second template is adapted to the remaining end profile of the mother splice end and at least one end can enter and exit the first template along the concave direction of the mother splice end of the concrete pile wall. The forming surface of the first shaping part forms a locking shaping part one that is recessed in the thickness direction of the precast concrete pile wall at least at a predetermined distance from the end face of the mother splice end. The second shaping part includes at least two detachably connected sub-templates, at least one sub-template is a rigid plate, and the forming surface of at least one of the sub-templates forms a locking shaping part two that is adapted to the locking shaping part one.

[0006] The concrete pile wall forming mold provided by this invention has irregularly shaped structures on two opposite sides of the cross-section of the molding cavity, enabling the formed concrete pile wall to form a concave-convex interlocking structure during splicing. Simultaneously, it includes a molding section one for forming the female splicing end of the concrete pile wall and a molding section two for forming the male splicing end. Molding section one includes at least one first template with deformation and reset function and at least one rigid second template that can support the first template. The second template adapts to the contour of the remaining ends of the female splicing end, and at least one end can enter and exit the first template along the concave direction of the female splicing end of the concrete pile wall. Thus, when demolding the concrete pile wall, after removing the second template, the first template can deform under external force. Therefore, the deformation function of the first template can be used to directly pull the first template out from the female splicing end of the concrete pile wall towards the opening direction of the female splicing end. At the same time, the detachably connected sub-templates in molding section two are disassembled sequentially, achieving smooth demolding of the concrete pile wall at the female and male splicing ends, thereby forming a concrete pile wall with lateral interlocking function.

[0007] Preferably, the first template includes a first shaping segment, a second shaping segment, and a third shaping segment that are sequentially connected. The second shaping segment is arranged approximately along the thickness direction of the concrete pile wall. The first shaping segment and the third shaping segment are respectively used to shape at least two surfaces of the mother splice end in the thickness direction of the concrete pile wall.

[0008] The first and / or third shaping sections are arranged approximately along the width of the concrete pile wall. The first and third shaping sections are respectively located on both sides of the second shaping section. The locking shaping part is provided on the forming surface of the first and / or third shaping sections.

[0009] The second shaping part includes a first sub-template, a second sub-template, and a third sub-template. The first sub-template, the second sub-template, and the third sub-template are connected in sequence to form a C-shaped structure in cross-section. The second locking shaping part is formed on the forming surface of the first sub-template and / or the forming surface of the third sub-template.

[0010] Preferably, the locking forming part one has a locking surface one, the locking forming part two has a locking surface two, the locking surface one forms an angle α with the concave direction of the concrete pile wall splice end, 0°<α<180°, and the locking surface two is approximately parallel to the locking surface one.

[0011] Preferably, the second sub-template and the third sub-template are an integral structure.

[0012] Preferably, the second template has a support portion formed on the side facing the molding cavity, and the first template covers the support portion;

[0013] Preferably, the outer contour shape of the support portion is approximately matched with the inner contour shape of the first template, and the side of the support portion near the molding cavity is fitted with the inner contour of the second molding segment.

[0014] Preferably, at least a portion of the first and / or second and / or third shaping segments is a flexible and / or elastic structure;

[0015] Preferably, the shaping surfaces of the first shaping segment and / or the second shaping segment and / or the third shaping segment are rigid, while the remaining parts are flexible structures and / or elastic structures.

[0016] Preferably, the thickness of the support gradually decreases along the concave direction of the splice end of the concrete pile wall.

[0017] Preferably, the first template and the second template are connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection.

[0018] Preferably, the second template has positioning grooves on both sides of the support part in the thickness direction of the concrete pile wall, and a first positioning part is formed at the end of the first shaping section away from the mold cavity; a third positioning part is formed at the end of the third shaping section away from the mold cavity, and the first positioning part and the third positioning part are respectively embedded in the corresponding positioning grooves.

[0019] Preferably, at least one of the first shaping segment, the second shaping segment, and the third shaping segment has at least one first protrusion protruding toward the shaping mold cavity on its shaping surface, and / or, at least one of the first sub-template, the second sub-template, and the third sub-template has at least one second protrusion protruding toward the shaping mold cavity on its shaping surface;

[0020] Preferably, the first protrusion and the second protrusion are positioned correspondingly and extend to their ends along the length of the molding cavity. The concave portions formed by the corresponding first and second protrusions of the adjacent concrete pile walls form a cast-in-place hole.

[0021] Preferably, the first template includes a first support block and a first forming block. The forming surface of the first forming block is used to form one side of the joint end of the concrete pile wall in the thickness direction of the concrete pile wall. The first support block and the first forming block are connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection.

[0022] Preferably, the first support block and / or the first molding block is a hollow grid-like structure;

[0023] And / or, the third sub-template includes a second support block and a second forming block. The forming surface of the second forming block is used to form the other side of the concrete pile wall joint end in the thickness direction of the concrete pile wall. The second support block and the second forming block are connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection.

[0024] Preferably, the second support block and / or the second molding block is a hollow grid-like structure.

[0025] Preferably, the first and / or second shaping parts are provided with a hoisting component; preferably, the hoisting component includes a pull rod, one end of which is connected and fixed to the first shaping part, and the other end of which is connected and fixed to the second shaping part.

[0026] Preferably, the concrete pile wall forming mold further includes at least two end shaping plates arranged along the length of the shaping mold cavity, and the outer peripheral contour shape of the end shaping plates is approximately consistent with the cross-sectional contour of the shaping mold cavity;

[0027] Preferably, the end shaping plate can be connected and fixed to the concrete pile wall forming mold or slide in contact with the inner wall of the shaping mold cavity along the length direction of the shaping mold cavity;

[0028] Preferably, the end shaping plate has a plurality of connection holes for connecting with the rigid frame for concrete pile wall, and at least one of the end shaping plates has a tensioning connection part for connecting with external tensioning equipment at its center.

[0029] Preferably, the concrete pile wall forming mold further includes at least one core mold arranged along the length direction of the forming mold cavity and used to make the formed concrete pile wall hollow. The end forming plate is provided with a through hole for the core mold to pass through axially. The core mold passes through the end forming plate and abuts against the hole wall of the end forming plate.

[0030] Alternatively, the bottom mold includes a bottom template and two side templates disposed on both sides of the bottom template in the lateral direction, and at least one of the side templates can be laterally moved and / or deflected relative to the width direction of the bottom template;

[0031] Preferably, the two side templates form a demolding angle greater than 0°. Attached Figure Description

[0032] Figure 1 This is a partial structural schematic diagram of the concrete pile wall forming mold in Embodiment 1 of the present invention;

[0033] Figure 2 This is a front view of the concrete pile wall forming mold in Embodiment 1 of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of the shaping part 1 in Embodiment 1 of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the second shaping part in Embodiment 1 of the present invention;

[0036] Figure 5 This is a schematic diagram of the concrete pile wall assembly in Embodiment 1 of the present invention;

[0037] Figure 6 This is a schematic diagram of another concrete pile wall structure in Embodiment 2 of the present invention;

[0038] Figure 7 This is a schematic diagram of another concrete pile wall forming mold in Embodiment 2 of the present invention;

[0039] Figure 8 This is a front view of another concrete pile wall forming mold in Embodiment 2 of the present invention.

[0040] The list of labels in the diagram is as follows:

[0041] 100. Concrete pile wall forming mold;

[0042] 1. Shaping section one; 11. Locking forming section one; 111. Locking surface one;

[0043] 12. First template; 121. First shaping section; 1211. First positioning section;

[0044] 122. Second shaping section; 1221. First protrusion; 123. Third shaping section; 1231. Third positioning section;

[0045] 13. Second template; 131. Support part; 132. Positioning groove;

[0046] 2. Shaping section two; 21. Locking forming section two; 211. Locking surface two;

[0047] 22. First sub-template; 221. First support block; 222. First forming block;

[0048] 23. Second sub-template; 231. Side panel; 232. Arc panel; 233. Second protrusion;

[0049] 24. Third template; 241. Second support block; 242. Second forming block;

[0050] 3. Bottom mold; 31. Bottom template; 32. Side template;

[0051] 4. End molding plate; 41. Connecting hole; 5. Core mold; 6. Fastening assembly;

[0052] 300, Concrete pile wall assembly; 200, Concrete pile wall; 201, Female splice end; 2011, Locking part one; 202, Male splice end; 2021, Locking part two; 203, Cast-in-place hole. Detailed Implementation

[0053] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] In this document, terms such as "upper," "lower," "inner," and "outer" are established based on the positional relationships shown in the accompanying drawings. Depending on the drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection. Moreover, relational terms such as "first" and "second" are only used to distinguish one component from another that has the same name, and do not necessarily require or imply any such actual relationship or order between these components.

[0055] The direction closest to the axis of the concrete pile wall forming mold is defined as inside, and the opposite direction as outside. Unless otherwise specified, this definition shall apply to all components.

[0056] Example 1

[0057] Please refer to Figures 1 to 6In one embodiment, the concrete pile wall forming mold 100 provided by the present invention is used to form a concrete pile wall 200. Specifically, the concrete pile wall 200 can be a retaining pile, a support pile, an I-beam pile, an H-beam pile, a sheet pile, a T-beam pile, etc. The main structure of the concrete pile wall 200 described in detail in this embodiment is roughly rectangular, and the two sides of the pile body have a male splicing end 202 and a female splicing end 201 adapted to the male splicing end 202 in the axial direction.

[0058] The concrete pile wall forming mold 100 includes a bottom mold 3, a second shaping part 2, and a first shaping part 1. The bottom mold 3 has a rectangular structure with an opening at the top. The bottom mold 3 is used to support the first shaping part 1 and the second shaping part 2. The second shaping part 2 and the first shaping part 1 are detachably connected to the inner walls of the two sides of the bottom mold 3, and the lower ends of the second shaping part 2 and the first shaping part 1 are respectively attached to the bottom of the bottom mold 3. The bottom mold 3, the second shaping part 2, and the first shaping part 1 form a top-open shaping mold cavity for forming the concrete pile wall 200. Specifically, shaping part 2 is used to shape the male splice end 202 on one side of the concrete pile wall 200, and shaping part 1 is used to shape the female splice end 201 on the other side of the concrete pile wall 200 that is adapted to the male splice end 202. In order to facilitate the shaping of the complex contours of the male splice end 202 and the female splice end 201 of the concrete pile wall 200 and to facilitate demolding, shaping part 1 includes at least one first template 12 with deformation and reset function and at least one second template 13 with rigidity and which can be used to support the first template 12. The first template 12 can at least adapt to the female splice end 201 in the concrete. The second template 13 is adapted to the remaining end contours of the mother splice end 201 in the thickness direction of the pile wall, and at least one end of the second template 13 can enter and exit the first template 12 along the concave direction of the mother splice end of the concrete pile wall. The concave direction of the mother splice end of the concrete pile wall can be straight or inclined. The forming surface of the forming part 1 forms a locking forming part 11 that is recessed in the thickness direction of the precast concrete pile wall at least at a predetermined distance from the end face of the mother splice end 201. The locking forming part 11 is used to form the locking part 2011 at the mother splice end of the concrete pile wall.

[0059] The second molding section 2 includes at least two detachably connected sub-formwork pieces, at least one of which is a rigid plate, giving the second molding section 2 a certain rigidity to ensure that it meets the strength requirements during construction, thereby guaranteeing the shape and dimensions of the male splicing end 202 of the concrete pile wall 200. Additionally, the forming surface of at least one of the sub-formwork pieces is formed with a second locking forming section 21 adapted to the first locking forming section 11. The second locking forming section 21 is used to form the second locking section 2021 at the male splicing end of the concrete pile wall. Adjacent concrete pile walls 200 are spliced ​​together via the female splicing end 201 and the male splicing end 202, and connected in the reverse splicing direction (i.e., via the first locking section 2011 and the second locking section 2021). Figure 5 (As shown by the arrow direction) forms a pull-out resistant fit. The locking part 1 2011 and locking part 2 2021 of the concrete pile wall 200 made by this mold can be used for guidance during splicing, or as a reinforcing structure after splicing. The shapes of locking part 1 2011 and locking part 2 2021 have certain variations in the lateral direction. Locking forming part 1 11 and locking forming part 2 21 can be varied according to requirements. Specifically, as long as the concrete pile wall 200 made by this mold can form a snap-fit ​​structure in the lateral direction, it is acceptable. For example, locking forming part 1 11 and locking forming part 2 21 can be in the shape of a dovetail, trapezoid, T-shaped, Ω-shaped, etc. The specific form is not limited. Since there are many ways to achieve this, they will not be listed here. In this embodiment, the concrete pile wall 200 is formed such that when two adjacent concrete pile walls 200 are connected, the male splicing end 202 of one concrete pile wall 200 can be inserted into the female splicing end 201 of the other concrete pile wall 200, forming a mortise and tenon connection structure. This allows the adjacent concrete pile walls 200 to be connected and also forms a splicing seam that is not directly transparent inside or outside the wall, which helps to improve waterproof performance. The two adjacent concrete pile walls 200 can be locked and fixed by locking part one 2011 and locking part two 2021, ensuring that the pile wall spliced ​​by the connection of the concrete pile walls 200 is reliable and stable. The adjacent concrete pile walls 200 are connected into one, the overall pile wall's resistance to tilting and overturning is enhanced, and the structural stability is greatly improved.

[0060] Please refer to it again. Figure 1 , 2 5. To form a snap-fit ​​structure between two adjacent concrete pile walls 200, the concrete pile wall 200 has a male splicing end 202 with a changing diameter on one side and a female splicing end 201 with a changing diameter on the other side. When two adjacent concrete pile walls 200 are spliced, the male splicing end 202 of one concrete pile wall 200 can be inserted into the female splicing end 201 of the other concrete pile wall 200, forming a mortise and tenon structure, thereby securing the two adjacent concrete pile walls 200 together. This embodiment details a mold for a concrete pile wall 200, such as... Figure 2 As shown, the molding surface of molding part 1 is formed with a locking molding part 11 recessed in the thickness direction of the precast concrete pile wall 200 at least a predetermined distance from the end face of the female splice end 201. The locking molding part 11 is continuously arranged along the length direction of the molding cavity, and the locking molding part 11 is arranged on one or both sides of molding part 1 in the thickness direction of the concrete pile wall; correspondingly, the molding surface of molding part 2 is formed at least at a predetermined distance from the root of the male splice end 202 ( Figure 5As shown by the dotted line, a recessed locking forming part 21 is formed at a predetermined distance. The locking forming part 21 is continuously or intermittently arranged along the longitudinal direction (i.e., the length direction of the molding cavity), and the locking forming part 21 is located on one or both sides of the molding part 2 in the thickness direction of the concrete pile wall. In order to make two adjacent concrete pile walls 200 fit together smoothly, the positions of the male splicing end 202 and the female splicing end 201 on the concrete pile wall 200 are corresponding. The mold for making the concrete pile wall 200 matches the shape of the concrete pile wall 200, such as... Figure 2 As shown, locking forming part 11 is provided on both sides of shaping part 1 in the thickness direction of the concrete pile wall. Locking forming part 11 is provided at the root of the female splicing end 201 of the concrete pile wall in the concave direction. Locking forming part 21, which matches locking forming part 11, is provided on both sides of shaping part 2 in the thickness direction of the concrete pile wall. Locking forming part 21 is provided at the end of the male splicing end 202 of the concrete pile wall in the convex direction. Similarly, locking forming part 11 is provided in the middle of shaping part 1 in the concave direction of the female splicing end 201 of the concrete pile wall, and locking forming part 21 is provided accordingly. As long as the concrete pile wall 200 produced by this mold can form a snap-fit ​​structure in its width direction, the position and shape of locking forming part 11 and locking forming part 21 are not limited.

[0061] Preferred, such as Figure 2 , 3 As shown, in order to increase the interlocking area and form a guiding structure when two adjacent concrete pile walls 200 are connected laterally, the locking forming part 11 has a locking surface 111, and the locking forming part 21 has a locking surface 211. The locking surface 111 forms an angle α with the concave direction of the concrete pile wall mother splice end 201, where 0° < α < 180°. The locking surface 211 is approximately parallel to the locking surface 111, preferably 90° ≤ α < 180°. Increasing the angle improves the load-bearing performance of the locking part of the concrete pile wall 200.

[0062] like Figure 3 As shown, in this embodiment, the first template 12 includes a first shaping segment 121, a second shaping segment 122, and a third shaping segment 123 arranged sequentially. The second shaping segment 122 is arranged approximately along the thickness direction of the concrete pile wall 200. The first shaping segment 121 and the third shaping segment 123 are respectively used to shape at least two surfaces of the female splicing end 201 in the thickness direction of the concrete pile wall 200. The first shaping segment 121 and / or the third shaping segment 123 are arranged approximately along the width direction of the concrete pile wall 200 (i.e.,...). Figure 5As shown by the arrow direction, the first shaping segment 121 and the third shaping segment 123 are respectively disposed on both sides of the second shaping segment 122. The locking shaping part 11 is disposed on the molding surface of the first shaping segment 121 and / or the third shaping segment 123. Preferably, both the first shaping segment 121 and the third shaping segment 123 are provided with the locking shaping part 11. With two locking shaping parts 11 disposed opposite to each other along the thickness direction of the concrete pile wall 200, the stability is higher, the anti-detachment performance is stronger, and the problem of detachment caused by deflection between adjacent concrete pile walls 200 is reduced.

[0063] In addition, at least a portion of the first shaping segment 121 and / or the second shaping segment 122 and / or the third shaping segment 123 in this embodiment are flexible structures and / or elastic structures.

[0064] As one implementation method, after the concrete pile wall 200 is formed, since the first template 12 is locked to the female splice end 201 on the side of the already formed concrete pile wall 200, and the second shaping section 122 of the first template 12 is a flexible section that can deform under external force, the first template 12 can be directly pulled out from the female splice end 201 on the side of the concrete pile wall 200 towards the opening of the female splice end 201 during the demolding process. Alternatively, the first template 12 can be stretched and deformed under external force, causing the locking between it and the female splice end 201 to fail, and then the first template 12 can be removed from the female splice end 201.

[0065] In another implementation, the molding surfaces of the first molding segment 121 and / or the second molding segment 122 and / or the third molding segment 123 are rigid, while the remaining parts are flexible and / or elastic structures. Preferably, the molding surfaces of the first molding segment 121, the second molding segment 122, and the third molding segment 123 are all rigid, possessing a certain strength to resist the impact and vibration during material placement, preventing changes in the shape of the mother splicing end 201 that could lead to dimensional deviations in the formed concrete pile wall 200, ensuring that the surface shape and surface roughness of the molded concrete pile wall 200 meet design requirements. The remaining parts are flexible and / or elastic structures, capable of deformation during demolding. Utilizing their deformation function, the second template 13 can be easily and conveniently pulled out and separated from the first template 12. After the second template 13 separates from the first template 12, since only the molding surface of the first template 12 is rigid and possesses a certain elastic deformation performance, the first template 12 can be separated from the formed concrete pile wall 200 by peeling. In order to reduce damage to the first template 12 during the peeling process, the connection between the first shaping segment 121, the second shaping segment 122 and the third shaping segment 123 can be set as a flexible structure and / or an elastic structure, so that it can be folded and thus facilitates detachment.

[0066] The first template 12 is at least partially configured as a flexible structure and / or an elastic structure, so that it has a deformation recovery function. As for where the flexible structure and / or elastic structure is located in the first template 12, it is not specifically limited here. Therefore, as long as a part of the first template 12 has a deformation recovery function, it can meet the production requirements of smooth demolding. For example, the first molding section 121, the second molding section 122, the third molding section 123 or a combination thereof, etc.

[0067] Please continue to refer to this. Figure 3 The shaping part 1 also includes a second template 13. The second template 13 has a support part 131 on one side facing the shaping cavity, and the other side is a plate-like structure that matches the bottom mold 3. The second template 13 can adapt to the remaining end contour of the mother splicing end 201. Preferably, the outer contour shape of the support part 131 is adapted to the inner contour shape of the first template 12. The first template 12 covers the support part 131, and the lateral side of the support part 131 fits the inner contour of the first template 12. Specifically, the upper end face of the support part 131 is supported on the lower part of the first molding section 121, and the lower end face of the support part 131 is supported on the upper part of the third molding section 123. The support part 131 can provide rigid support for the first template 12. During demolding, the second template 13 does not interfere with the first template 12 in the concave direction of the female splice end 201 of the concrete pile wall 200. That is, the second template 13 does not have a limiting structure to lock the first template 12. The surface of the support part 131 in the thickness direction of the concrete pile wall 200 is a flat and smooth surface. The second template 13 is pulled out from the female splice end 201 on the side of the concrete pile wall 200 towards the opening direction of the female splice end 201, and then the first template 12 is pulled out, completing the demolding at the female splice end 201. In order to reduce the demolding resistance of the second template 13 and reduce the installation difficulty of the first template 12, the thickness of the support part 131 is gradually reduced along the concave direction of the female splice end 201 of the concrete pile wall.

[0068] To achieve the installation and fixation of the first template 12 and the second template 13, the first template 12 and the second template 13 are connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection. To facilitate the positioning of the first template 12 and the second template 13, the second template 13 has positioning grooves 132 on the upper and lower sides of the support part 131 in the thickness direction of the concrete pile wall 200. The end of the first shaping section 121 away from the shaping mold cavity forms an upwardly extending first positioning part 1211; the end of the third shaping section 123 away from the shaping mold cavity forms a downwardly extending third positioning part 1231. The first positioning part 1211 and the third positioning part 1231 are respectively adapted to the corresponding positioning grooves 132. Specifically, the first positioning part 1211 can be a vertically bent section at the end of the first shaping section 121, and the third positioning part 1231 can also be a vertically bent section at the end of the third shaping section 123. Preferably, for ease of processing, the first shaping section 121 and the third shaping section 123 have the same structure. During installation, the first positioning part 1211 and the third positioning part 1231 of the first template 12 are respectively embedded in the corresponding positioning grooves 132 until the side of the first positioning part 1211 and the third positioning part 1231 facing the molding cavity is flush with the upper and lower sides of the second template 13 facing the molding cavity.

[0069] like Figure 4 As shown, a specific structure of the second molding section 2 is described in detail. The second molding section 2 includes a first sub-formwork 22, a second sub-formwork 23, and a third sub-formwork 24. The first sub-formwork 22, the second sub-formwork 23, and the third sub-formwork 24 are connected sequentially to form a C-shaped cross-section. The forming surface of the first sub-formwork 22 and / or the forming surface of the third sub-formwork 24 forms the locking forming section 21, so that the formed concrete pile wall 200 forms a component of the interlocking structure at the male splicing end 202. During demolding, the first sub-formwork 22 is pulled out from the top, the second sub-formwork 23 is pulled out in a direction away from the male splicing end 202 of the concrete pile wall 200, and the third sub-formwork 24 is automatically demolded under gravity during the hoisting of the concrete pile wall 200.

[0070] In order to reduce the weight of the second shaping part 2 and reduce the processing difficulty, the second sub-template 23 is provided, including a side plate 231 and an arc plate 232. The arc plate 232 is used to form the second protrusion 233. The arc plate 232 can be a hollow structure, made of organic polymer materials, steel, etc., and has a certain strength and heat resistance and wear resistance. The side plate 231 and the arc plate 232 can be connected and fixed or integrally formed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection; and / or, the first template 22 includes a first support block 221 and a first forming block 222. The forming surface of the first forming block 222 is used to form one side of the male splice end 202 of the concrete pile wall 200 in the thickness direction of the concrete pile wall 200. When the forming surface of the first forming block 222 is relatively complex, it can be processed by injection molding or other methods to reduce the difficulty of machining. According to the actual production needs, the first forming block 222 with different shapes, specifications and materials can be replaced to form different male splice end 202 shapes. As long as the first forming block 222 meets the functional requirements, its material and processing method are not limited. In order to reduce the weight of the second shaping part 2, the first support block 221 and / or the first forming block 222 can be a hollow grid structure, which is spaced apart or continuously connected along the length direction of the shaping mold cavity. In this embodiment, the number of hollow holes is not specifically limited. To ensure the structural stability of the second shaping section 2, the first support block 221 and the first molding block 222 can be connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection.

[0071] In this embodiment, the third template 24 includes a second support block 241 and a second forming block 242. The forming surface of the second forming block 242 is used to form the other side of the male splice end 202 of the concrete pile wall 200 in the thickness direction of the concrete pile wall 200. The second support block 241 and the second forming block 242 are connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection. In order to reduce the weight of the second shaping part 2, the second support block 241 and / or the second forming block 242 can be a hollow grid structure. The third template 24 can be roughly the same as the structure of the first template 22. For the specific structure, please refer to the description of the first template 22.

[0072] In actual production, the first sub-formwork 22 and the third sub-formwork 24 can be pre-installed on the second sub-formwork 23 before fabric laying. Alternatively, the third sub-formwork 24 can be connected to the second sub-formwork 23 before fabric laying, and then the first sub-formwork 22 can be installed. The connection method can be one or more of the following: fastener connection, snap-fit, adhesive connection, magnetic connection. After production is completed, the first sub-formwork 22 can be removed first, or the second molding section 2, the first molding section 1, and the concrete pile wall 200 can be lifted out together before dismantling each formwork.

[0073] To facilitate the lifting of the second shaping section 2, the first shaping section 1, and the concrete pile wall 200 together, the second shaping section 2 and / or the first shaping section 1 are provided with lifting components (not shown in the figure); preferably, the lifting components include a tie rod (not shown in the figure), one end of which is connected and fixed to the second shaping section 2, and the other end is connected and fixed to the first shaping section 1.

[0074] Please continue to refer to this. Figure 2 , 5 At least one of the first molding segment 121, the second molding segment 122, and the third molding segment 123 has at least one first protrusion 1221 protruding towards the molding cavity on its molding surface, and / or at least one of the first sub-template 22, the second sub-template 23, and the third sub-template 24 has at least one second protrusion 233 protruding towards the molding cavity on its molding surface. The first protrusion 1221 and the second protrusion 233 are used to form a notch at the splicing end face of the concrete pile wall 200 so that the cast-in-place part can be constructed through the notch to seal the joint gap between the concrete pile walls 200. Preferably, the first protrusion 1221 is provided on the second molding segment 122, and the second protrusion 233 is provided on the second sub-template 23, and the positions of the first protrusion 1221 and the second protrusion 233 correspond to each other. Specifically, the first protrusion 1221 and the second protrusion 233 are located at the same horizontal position and extend to the end along the length direction of the molding cavity. When adjacent concrete pile walls 200 are spliced, the concave portions formed by the first protrusion 1221 and the second protrusion 233 enclose a cast-in-place hole 203. The cast-in-place hole 203 can be circular, square, etc. It can serve as a drainage channel or a pouring channel. A filler can be poured into the cast-in-place hole 203. The filler has a certain curing ability and can be cement and / or cementitious materials, etc.

[0075] In this embodiment, when neither the second sub-template 23 nor the third sub-template 24 is provided with a second protrusion 233 on the molding surface facing the molding cavity, the second sub-template 23 and the third sub-template 24 can be an integral structure. In this case, after production is completed, the first sub-template 22 can be removed first, and then the concrete pile wall 200 and the molding part 1 can be lifted out together. During the lifting process, the second sub-template 23 and the third sub-template 24 will automatically separate from the concrete pile wall 200 under gravity.

[0076] Example 2

[0077] The parts that are the same as in Embodiment 1 are given the same reference numerals, and the same text descriptions are omitted.

[0078] This embodiment provides another type of concrete pile wall forming mold 100, such as Figure 7-8 As shown, the concrete pile wall forming mold 100 also includes at least two end shaping plates 4 arranged along the length of the shaping mold cavity. In this embodiment, two end shaping plates 4 are used as an example for explanation. The two end shaping plates 4, together with the bottom mold 3, the second shaping part 2, and the first shaping part 1, form the shaping mold cavity for forming the concrete pile wall 200. The outer peripheral contour shape of the end shaping plate 4 is approximately consistent with the cross-sectional contour of the shaping mold cavity, and the end shaping plate 4 can be connected and fixed to the concrete pile wall forming mold 100 or slide in contact with the inner wall of the shaping mold cavity along the length of the shaping mold cavity. When the end shaping plate 4 is used as an end fixing plate, it can be connected and fixed to the concrete pile wall forming mold formed by the bottom mold 3, the second shaping part 2, and the first shaping part 1; when the end shaping plate 4 is used as a tensioning plate, it can slide in contact with the inner wall of the shaping mold cavity along the length of the shaping mold cavity.

[0079] To improve the strength of the concrete pile wall 200, a prestressed rigid frame is pre-embedded within the concrete pile wall 200 to generate prestress within it. Whether the end molding plate 4 is used as an end fixing plate or a tensioning plate, it needs to be connected to the rigid frame. Therefore, in this embodiment, the end molding plate 4 has several connection holes 41 for connecting to the rigid frame used in the concrete pile wall 200. Currently, the production process generally involves first installing the rigid frame to the concrete pile wall forming mold 100 and then tensioning it to generate prestress. Therefore, the rigid frame used in the concrete pile wall 200 needs to be tensioned. In this embodiment, at least one of the end molding plates 4 has a tensioning connection part at its center for connection to an external tensioning device.

[0080] To save on concrete costs, such as Figure 6As shown, the concrete pile wall 200 in this embodiment can also be made hollow. Therefore, the concrete pile wall forming mold 100 also includes at least one core mold 5 along the length of the molding cavity for making the formed concrete pile wall 200 hollow. Figure 7 As shown, to solve the problem of placing the core mold 5, the end shaping plate 4 is provided with through holes for the core mold 5 to pass through axially. The core mold 5 passes through the end shaping plates 4 at both ends and abuts against the hole walls of the through holes in the end shaping plates 4. That is to say, before the concrete is laid, the core mold 5 is axially passed through the through holes of the end shaping plates 4 at both ends, and the hole walls are used to support the core mold 5.

[0081] like Figure 8 As shown in the illustration, this embodiment also introduces a concrete pile wall forming mold 100. The bottom mold 3 of this mold includes a bottom template 31 and two side templates 32 respectively disposed on both sides of the bottom template 31 in the lateral direction. At least one of the side templates 32 can be laterally moved and / or deflected relative to the width direction of the bottom template 31. In detail, the side templates 32 and the bottom template 31 can be connected and fixed by fastening components 6. Figure 8 The fastening assembly 6 shown includes a screw and a nut. During demolding, the nut can be tightened manually or automatically to move the side formwork 32 laterally outward, facilitating the removal of the first molding section 1, the second molding section 2, and the concrete pile wall 200 together. Alternatively, if space permits, the second molding section 2 and / or the first molding section 1 can be removed from the bottom formwork 3. Similarly, the fastening assembly 6 can also be a hinged component, allowing the side formwork 32 to flip relative to the bottom formwork 31, providing demolding space for the next demolding step.

[0082] In addition, to facilitate demolding, the bottom mold 3 is provided with a certain demolding angle. Specifically, the two side templates 32 form a demolding angle with an included angle greater than 0°. That is, the shaping part 1 and shaping part 2 that are adapted to the bottom mold 3 respectively cooperate with the inner wall surface of the corresponding side template 32 through the inclined surface. The inner wall surface of the two side templates 32 forms a structure that gradually expands from bottom to top.

[0083] The foregoing has provided a detailed description of a concrete pile wall forming mold provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A concrete pile wall forming mold, comprising a first forming part, a second forming part, and a bottom mold supporting the first forming part and the second forming part, wherein the first forming part, the second forming part, and the bottom mold are combined to form an open forming mold cavity, characterized in that, The first shaping part is used to form the female splicing end of the concrete pile wall, and the second shaping part is used to form the male splicing end of the concrete pile wall. The shaping part one includes at least one first template with deformation and reset function and at least one second template with rigidity that can be used to support the first template. The first template can at least adapt to the end profile of the female splice end on one side in the thickness direction of the concrete pile wall. The second template adapts to the remaining end profile of the female splice end and at least one end can enter and exit the first template along the concave direction of the female splice end of the concrete pile wall. The forming surface of the shaping part one forms a locking forming part one that is recessed in the thickness direction of the precast concrete pile wall at least at a predetermined distance from the end face of the female splice end. The second shaping part includes at least two detachably connected sub-templates, at least one of the sub-templates is a rigid plate, and the forming surface of at least one of the sub-templates is formed with a second locking forming part that is adapted to the first locking forming part.

2. The concrete pile wall forming mold according to claim 1, characterized in that, The first template includes a first shaping segment, a second shaping segment, and a third shaping segment that are sequentially connected. The second shaping segment is arranged approximately along the thickness direction of the concrete pile wall. The first shaping segment and the third shaping segment are respectively used to shape at least two surfaces of the mother splice end in the thickness direction of the concrete pile wall. The first and / or third shaping sections are arranged approximately along the width of the concrete pile wall. The first and third shaping sections are respectively located on both sides of the second shaping section. The locking shaping part is provided on the forming surface of the first and / or third shaping sections. The second shaping part includes a first sub-template, a second sub-template, and a third sub-template. The first sub-template, the second sub-template, and the third sub-template are connected in sequence to form a C-shaped structure in cross-section. The second locking shaping part is formed on the shaping surface of the first sub-template and / or the shaping surface of the third sub-template.

3. The concrete pile wall forming mold according to claim 1 or 2, characterized in that, The locking forming part one has a locking surface one, and the locking forming part two has a locking surface two. The locking surface one forms an angle α with the concave direction of the splicing end of the concrete pile wall, where 0° < α < 180°. The locking surface two is approximately parallel to the locking surface one.

4. The concrete pile wall forming mold according to claim 2, characterized in that, The second sub-template and the third sub-template are an integral structure.

5. The concrete pile wall forming mold according to claim 2, characterized in that, The second template has a support portion formed on the side facing the molding cavity, and the first template covers the support portion.

6. The concrete pile wall forming mold according to claim 5, characterized in that, The outer contour shape of the support part is roughly matched with the inner contour shape of the first template, and the side of the support part near the molding cavity fits the inner contour of the second molding section.

7. The concrete pile wall forming mold according to claim 5, characterized in that, At least a portion of the first and / or second and / or third shaping segments are flexible and / or elastic structures.

8. The concrete pile wall forming mold according to claim 5, characterized in that, The styling surfaces of the first and / or second and / or third styling sections are rigid, while the remaining parts are flexible and / or elastic structures.

9. The concrete pile wall forming mold according to claim 5, characterized in that, The thickness of the support gradually decreases along the concave direction of the splice end of the concrete pile wall.

10. The concrete pile wall forming mold according to claim 2, characterized in that, The first template and the second template are connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection.

11. The concrete pile wall forming mold according to claim 5, characterized in that, The second template has positioning grooves on both sides of the support part in the thickness direction of the concrete pile wall. The first shaping section has a first positioning part at the end away from the mold cavity, and the third shaping section has a third positioning part at the end away from the mold cavity. The first positioning part and the third positioning part are respectively embedded in the corresponding positioning grooves.

12. The concrete pile wall forming mold according to claim 2, characterized in that, At least one of the first shaping segment, the second shaping segment, and the third shaping segment has at least one first protrusion protruding toward the shaping mold cavity on its shaping surface, and / or, at least one of the first sub-template, the second sub-template, and the third sub-template has at least one second protrusion protruding toward the shaping mold cavity on its shaping surface.

13. The concrete pile wall forming mold according to claim 12, characterized in that, The first protrusion corresponds to the second protrusion and extends to the end along the length of the molding cavity. The concave parts formed by the corresponding first and second protrusions of the adjacent concrete pile walls form a cast-in-place hole.

14. The concrete pile wall forming mold according to claim 2, characterized in that, The first template includes a first support block and a first forming block. The forming surface of the first forming block is used to form one side of the joint end of the concrete pile wall in the thickness direction of the concrete pile wall. The first support block and the first forming block are connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection.

15. The concrete pile wall forming mold according to claim 14, characterized in that, The first support block and / or the first molding block is a hollow grid-like structure.

16. The concrete pile wall forming mold according to claim 2, characterized in that, The third template includes a second support block and a second forming block. The forming surface of the second forming block is used to form the other side of the joint end of the concrete pile wall in the thickness direction of the concrete pile wall. The second support block and the second forming block are connected and fixed by one or more of the following methods: fastener connection, snap-fit, adhesive connection, magnetic connection.

17. The concrete pile wall forming mold according to claim 16, characterized in that, The second support block and / or the second molding block are hollow grid-like structures.

18. The concrete pile wall forming mold according to claim 1, characterized in that, The first and / or second shaping parts are equipped with hoisting components.

19. The concrete pile wall forming mold according to claim 18, characterized in that, The hoisting component includes a pull rod, one end of which is connected and fixed to the first shaping part, and the other end of which is connected and fixed to the second shaping part.

20. The concrete pile wall forming mold according to claim 1, characterized in that, The concrete pile wall forming mold also includes at least two end shaping plates arranged along the length of the shaping mold cavity, and the outer peripheral contour shape of the end shaping plates is approximately consistent with the cross-sectional contour of the shaping mold cavity.

21. The concrete pile wall forming mold according to claim 20, characterized in that, The end molding plate can be connected and fixed to the concrete pile wall molding mold or slide in contact with the inner wall of the molding mold cavity along the length of the molding cavity.

22. The concrete pile wall forming mold according to claim 20, characterized in that, The end shaping plate has several connection holes for connecting with the rigid frame of the concrete pile wall, and at least one of the end shaping plates has a tensioning connection part for connecting with external tensioning equipment at its center.

23. The concrete pile wall forming mold according to claim 20, characterized in that, The concrete pile wall forming mold also includes at least one core mold arranged along the length of the forming mold cavity and used to make the formed concrete pile wall hollow. The end forming plate is provided with a through hole for the core mold to pass through axially. The core mold passes through the end forming plate and abuts against the hole wall of the end forming plate.

24. The concrete pile wall forming mold according to claim 20, characterized in that, The bottom mold includes a bottom template and two side templates disposed on both sides of the bottom template in the lateral direction. At least one of the side templates can be laterally moved and / or deflected relative to the width direction of the bottom template.

25. The concrete pile wall forming mold according to claim 24, characterized in that, The two side templates form a demolding angle greater than 0°.

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