Special-shaped multi-pile bearing platform construction mold structure and construction method

Abstract

The invention relates to the technical field of building construction molds, and discloses a special-shaped multi-pile bearing platform construction mold structure and a construction method.The special-shaped multi-pile bearing platform construction mold structure comprises a fixing block, a mold plate, a connecting mechanism and a supporting plate, when a supporting rod is loosened and clamped, the supporting rod is manually turned over, and a limiting structure at the outer end of the supporting rod and a metal plate are driven to rotate; the two layers of deformation plates on the inner side of the metal plate are bent, bending of the corners of the supporting plates is achieved, the bending radian is adjusted according to the requirements of the corners of the mold, the round corner state of the splicing connecting position is achieved, and the four supporting rods are pulled by the two movable plates to form the shape with the wide upper portion and the narrow lower portion. The supporting rods rotate to form an arc-shaped bent fan-shaped state with the movable plates, when the formworks are obliquely installed, the connecting mechanisms at the corners obliquely move along with the formworks on the two sides and the supporting plates, the situation that the connecting positions are not easy to adjust when the formworks are obliquely spliced is prevented, and the connecting mechanisms are stretched and adjusted according to the sizes of cracks when the formworks are obliquely spliced; the adaptability of the construction mold is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction moulds, in particular to a special-shaped multi-pile cap construction mould structure and a construction method. Background Art

[0002] The construction mold structure of the special-shaped multi-pile cap is used for the casting and shaping of the cap. The cap construction mold is mainly assembled from multiple templates. After the casting is completed, the template can be reused by simply removing the template. The special-shaped multi-pile cap construction mold is suitable for casting of various shapes and sizes. The mold is assembled into a quadrilateral to cast the multi-pile cap, but the connection of the quadrilateral is sharp. When the corners of the construction mold need to be rounded to reduce obstruction, it is necessary to customize the mold according to the curvature of the corner, which is too troublesome. In the construction of the special-shaped multi-pile cap, when the construction mold is required to be tilted, a crack that is wide at the top and narrow at the bottom will be formed at the corner connection of the flat construction mold. The crack needs to be re-cut for splicing. The construction mold cannot be stretched according to the size of the crack at the corner connection during the tilted assembly, which affects the adaptability of the construction mold. Summary of the invention

[0003] The invention provides a special-shaped multi-pile cap construction mold structure and a construction method, which overcome the shortcomings described in the background technology.

[0004] The technical solution adopted by the present invention to solve its technical problem is: A special-shaped multi-pile cap construction mold structure and construction method, comprising a fixed block, a template, a connecting mechanism and a support plate, wherein four fixed blocks are provided, and the four fixed blocks are symmetrically arranged on the left and right sides of the connecting mechanism, and every two fixed blocks are arranged on the side of the support plate for rotational connection, and a template is arranged on the other side of the support plate; The connecting mechanism is provided with a limiting structure, a metal plate, a central structure, a deformation plate and a support rod. There are four support rods, which are symmetrically arranged on the left and right sides of the central structure, and the outer ends of the support rods are against the limiting structure. There are two limiting structures, which are symmetrically arranged on the inner side of the metal plate with the central structure as the center. The deformation plate is arranged on the inner side of the metal plate. The support rods rotate with the central structure as the center, and the support rods drive the deformation plates between the metal plates to bend in an arc shape.

[0005] A better technical solution: the deformable plate is composed of metal strips and rubber strips, and has the characteristics of stretching activity. The fixed block is arranged on the outside of the metal plate, the metal plate rotates around the central structure, and the support plate rotates around the fixed block and drives the template to rotate horizontally.

[0006] A better technical solution: the central structure is provided with a clamping structure, a spring rod, a sealing plate and a movable rod, the clamping structures are provided with two, the movable rod runs through the two clamping structures, the sealing plates are provided with two, the movable rod runs through the sealing plate on the left, and the spring rod arranged at the right end of the movable rod is connected to the sealing plate on the right, the support rod is clamped in the clamping structure, and when the movable rod is pushed and the spring rod is compressed, the support rod disengages from the clamping structure.

[0007] A preferred technical solution: the two sealing plates, the two deformation plates and the two metal plates form a cuboid, and the sealing plate is made of rubber material and has deformation characteristics.

[0008] A better technical solution: the locking structure is provided with a limiting ring and a blocking structure, the movable rod passes through the center positions of the limiting ring and the blocking structure, the side surface of the limiting ring is arranged on the side surface of the support rod, and the side of the support rod corresponding to the blocking structure is locked with each other. When the support rod rotates, the limiting ring is driven to rotate with the movable rod as the center.

[0009] A better technical solution: the blocking structure is provided with a hinge ring, a triangular block, a connecting ring, a spring, and a circular ring. The connecting ring is arranged on the outer edge of the circular ring, and symmetrically distributed triangular blocks are arranged on the side of the connecting ring corresponding to the support rod. The movable rod runs through the middle of the hinge ring, and the middle of the circular ring is arranged on the outside of the movable rod. The left and right ends of the spring are respectively arranged on the surfaces of two support rods. The support rod and the hinge ring are hinged and rotated, and the support rods rotate relative to each other to elastically stretch the spring, and the side of the support rod is blocked and engaged corresponding to the triangular block.

[0010] A preferred technical solution: the arc of the side surface of the support rod engaging with the triangular block is 120°, and the minimum angle between the two support rods on the left and right sides of the hinge ring is 60°.

[0011] A better technical solution: A force-bearing block is provided on the side of the support rod close to the connecting ring. The force-bearing block is a triangular structure. The force-bearing block and the triangular block conflict with each other to form a parallelogram structure. The force-bearing block conflicts and engages with the triangular block on the side of the connecting ring.

[0012] A preferred technical solution: the two support rods are on the same horizontal straight line when in a stationary state, the circular ring of the movable rod is in contact with the side end of the hinge ring when in a stationary state, and the triangular block is engaged with the force-bearing block on the side of the support rod.

[0013] A better technical solution: the limiting structure is provided with a movable plate, a limiting plate and a fixed plate, there are two fixed plates, and the two fixed plates are distributed in parallel on the upper and lower sides of the limiting plate, the fixed plate is arranged on the inner side of the metal plate, the movable plate slides between the two fixed plates, the support rod passes horizontally through the inside of the limiting plate, and the support rod is against the inside of the movable plate.

[0014] A better technical solution: the movable plate is provided with a slider, a convex groove, a slide plate and a force-bearing plate, the slider is arranged at the outer end of the support rod, the force-bearing plate is arranged on the side of the slide plate, the slider is an inverted "I"-shaped structure, the right half of the "I"-shaped structure coincides with the convex groove, the slider is against the inside of the force-bearing plate, and the slider slides in the convex groove position.

[0015] A better technical solution: the force-bearing plate is stepped on one side close to the support rod, and each step is connected in an inclined manner. The support rod slides against the limit plate. When the support rod tilts, the limit plate prevents the support rod from tilting.

[0016] The construction method based on the special-shaped multi-pile cap construction mold structure is characterized in that the construction method includes the following specific steps: S1: The support plate is fixedly connected to the fixed block. When the cap is constructed, the support plate rotates on the left and right sides of the connection mechanism with the fixed block as the center, and the support plate drives the template to rotate, and presses the center structure position of the connection mechanism at the corner position from the upper end, so that the movable rod releases the engagement with the support rod, and then manually rotates the metal plate and the limiting structure externally, drives the metal plate to rotate at the position of the movable rod, and keeps the deformation plate in an arc shape between the two metal plates; S2: When the movable rod is continuously pressed, the circular ring is driven to translate, and the triangular block moves with the circular ring, and the triangular block is separated from the engagement between the side of the support rod and the force block, and then the support rod rotates. The rotated support rod elastically stretches the spring, and the support rod maintains an upward pulling force under the tension of the spring, and then after releasing the pressure on the movable rod, the circular ring translates in the direction of the hinge ring under the elastic force of the spring rod, and under the upward elastic force of the spring, the triangular block and the force block on the side of the support rod are mutually opposed and engaged, thereby keeping the rotating support rod fixed; S3: After the support rod is rotated and fixed, the slide plate is manually pushed from the outside of the sealing plate to slide in the fixed plate, and the support rod passes through the limit plate and slides in the convex groove position, through the stepped shape of the force-bearing plate, when the movable plate slides to the highest point of the force-bearing plate, the support rod remains fixed, and the limit structure is pushed outward by the support rod, and the metal plate outside the limit structure is pushed outward to stretch the sealing plate and the deformation plate; S4: The four support rods are distributed in a quadrilateral state on the locking structure, wherein the force-bearing plate is pulled by the sliding plate for translation, and the sliding positions of the two support rods on the same side of the force-bearing plates installed in opposite directions are different, thereby forming an inclined expansion state, and then the four support rods are synchronously moved by the two movable plates to form a shape that is wide at the top and narrow at the bottom, and an arc-shaped fan-shaped state is formed by the rotation of the support rods and the movable plates, and the arc shape of the mold edge is adjusted according to the edge shape of the required special-shaped support platform.

[0017] Compared with the prior art, this technical solution has the following advantages: After the support rod is manually rotated in the present invention, it is reset under the elastic force of the spring rod so that the locking structure can re-engage the support rod. When the support rod is released, the support rod is manually flipped, and the limiting structure at the outer end of the support rod and the metal plate are driven to rotate, so that the two layers of the deformable plates on the inner side of the metal plate are bent, thereby realizing the bending of the support plate at the corner. The bending radius is adjusted according to the requirements of the mold corner to achieve the rounded corner state of the assembly connection.

[0018] In the present invention, four support rods are pulled by two movable plates to form a shape that is wide at the top and narrow at the bottom, and an arc-shaped curved fan-shaped state is formed with the movable plates through the rotation of the support rods. When the template is installed at an angle, the connecting mechanism at the corner follows the templates and the support plates on both sides to perform tilting activities, thereby preventing the connection from being difficult to adjust when the template is assembled at an angle, and allowing the connecting mechanism to be stretched and adjusted according to the size of the crack when the template is assembled at an angle, thereby improving the adaptability of the construction mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 This is an overall diagram of the present invention.

[0021] Figure 2 It is a three-dimensional schematic diagram of the connecting mechanism.

[0022] Figure 3 This is a partial plan view of the central structure.

[0023] Figure 4 It is a three-dimensional schematic diagram of the locking structure.

[0024] Figure 5 A three-dimensional schematic diagram of the blocking structure.

[0025] Figure 6 A perspective diagram of the support rod.

[0026] Figure 7 It is a cross-sectional stereoscopic schematic diagram of the limiting structure.

[0027] Figure 8 It is a partial three-dimensional schematic diagram of the movable plate.

[0028] In the figure: fixing block-1, template-2, connecting mechanism-3, supporting plate-4.

[0029] Limiting structure-31, metal plate-32, central structure-33, deformation plate-34, support rod-35, locking structure-331, spring rod-332, sealing plate-333, movable rod-334.

[0030] Limiting ring 3311, blocking structure 3312, hinge ring 121, triangular block 122, connecting ring 123, spring 124, circular ring 125, force block 351.

[0031] Movable plate 311, limiting plate 312, fixed plate 313, sliding block 3111, convex groove 3112, sliding plate 3113, force-bearing plate 3114. DETAILED DESCRIPTION

[0032] like Figures 1 to 8 As shown, the present invention proposes a special-shaped multi-pile cap construction mold structure and construction method, including a fixed block 1, a template 2, a connecting mechanism 3 and a support plate 4, wherein four fixed blocks 1 are provided, and the four fixed blocks 1 are symmetrically arranged on the left and right sides of the connecting mechanism 3, and every two fixed blocks 1 are arranged on the side of the support plate 4 for rotational connection, and the other side of the support plate 4 is provided with a template 2; The connecting mechanism 3 is provided with a limiting structure 31, a metal plate 32, a central structure 33, a deformation plate 34 and a support rod 35. There are four support rods 35, which are symmetrically arranged on the left and right sides of the central structure 33, and the outer ends of the support rods 35 are against the limiting structure 31. There are two limiting structures 31, which are symmetrically arranged on the inner side of the metal plate 32 with the central structure 33 as the center. The deformation plate 34 is arranged on the inner side of the metal plate 32. The support rods 35 rotate with the central structure 33 as the center, and the support rods 35 drive the deformation plates 34 between the metal plates 32 to bend in an arc shape.

[0033] In addition, the deformable plate 34 is composed of metal strips and rubber strips and has the characteristic of stretching activity. The fixed block 1 is arranged on the outside of the metal plate 32. The metal plate 32 rotates around the central structure 33, and the support plate 4 rotates around the fixed block 1 and drives the template 2 to rotate horizontally.

[0034] The two templates 2 in the present invention are rotated and movably spliced ​​with the support plate 4, and the corner position of the support plate 4 is made to be in an arc state through the deformation of the connecting mechanism 3. Therefore, the movable rod 334 is manually pressed continuously in the present invention to drive the locking structure 331 to disengage from the locking of the support rod 35, and then after manually rotating the support rod 35, it is reset under the elastic force of the spring rod 332 to re-engage the locking structure 331 with the support rod 35. When the support rod 35 is released, the support rod 35 is manually flipped over, and the limiting structure 31 at the outer end of the support rod 35 and the metal plate 32 are driven to rotate, so that the two layers of the deformable plates 34 on the inner side of the metal plate 32 are bent, so as to realize the bending at the corner of the support plate 4, and the curvature of the bending is adjusted according to the requirements of the mold corner to realize the rounded corner state of the assembly connection.

[0035] Among them, the central structure 33 is provided with a locking structure 331, a spring rod 332, a sealing plate 333 and a movable rod 334. The locking structure 331 is provided with two, and the movable rod 334 runs through the two locking structures 331. The sealing plates 333 are provided with two, and the movable rod 334 runs through the sealing plate 333 on the left, and the spring rod 332 arranged at the right end of the movable rod 334 is connected to the sealing plate 333 on the right. The support rod 35 is engaged in the locking structure 331. When the movable rod 334 is pushed and the spring rod 332 is compressed, the support rod 35 is disengaged from the locking structure 331.

[0036] Furthermore, the two sealing plates 333 , the two deformable plates 34 and the two metal plates 32 form a rectangular parallelepiped, and the sealing plate 333 is made of rubber material and has a deformable property.

[0037] Among them, the locking structure 331 is provided with a limiting ring 3311 and a blocking structure 3312, the movable rod 334 passes through the center positions of the limiting ring 3311 and the blocking structure 3312, the side of the limiting ring 3311 is arranged on the side of the support rod 35, and the side corresponding to the blocking structure 3312 of the support rod 35 is locked with each other. When the support rod 35 rotates, it drives the limiting ring 3311 to rotate around the movable rod 334 as the center.

[0038] Among them, the blocking structure 3312 is provided with a hinge ring 121, a triangular block 122, a connecting ring 123, a spring 124, and a circular ring 125. The connecting ring 123 is arranged on the outer edge of the circular ring 125, and the side of the connecting ring 123 corresponding to the support rod 35 is provided with symmetrically distributed triangular blocks 122. The movable rod 334 runs through the middle of the hinge ring 121, and the middle of the circular ring 125 is arranged on the outside of the movable rod 334. The left and right ends of the spring 124 are respectively arranged on the surfaces of two support rods 35. The support rod 35 and the hinge ring 121 are hinged and rotated, and the support rods 35 rotate with each other to elastically stretch the spring 124. The side of the support rod 35 is blocked and engaged with the triangular block 122.

[0039] Furthermore, the arc of the side surface of the support rod 35 engaging with the triangular block 122 is 120°, and the minimum angle between the two support rods 35 on the left and right sides of the hinge ring 121 is 60°.

[0040] In addition, a force block 351 is provided on the side of the support rod 35 close to the connecting ring 123. The force block 351 is a triangular structure. The force block 351 and the triangular block 122 abut against each other to form a parallelogram structure. The force block 351 abuts and engages with the triangular block 122 on the side of the connecting ring 123.

[0041] Furthermore, the two support rods 35 are on the same horizontal straight line when in a stationary state, the circular ring 125 contacts the side end of the hinge ring 121 when the movable rod 334 is in a stationary state, and the triangular block 122 is engaged with the force block 351 on the side of the support rod 35 .

[0042] When the movable rod 334 is continuously pressed in the present invention, the circular ring 125 in the blocking structure 3312 is driven to translate, so that the triangular block 122 is disengaged from the engagement of the force block 351 corresponding to the side of the support rod 35. At this time, the support rod 35 hinges and rotates outside the hinge ring 121, and the spring 124 is stretched while rotating. At this time, the pressing on the movable rod 334 is released, so that the circular ring 125 is reset to contact the side end of the hinge ring 121 under the elastic force of the spring rod 332, thereby driving the force block 351 on the side of the support rod 35 to rotate upward under the elastic force of the spring 124, and the force block 351 rotates upward and presses and engages with the triangular block 122 to realize the rotation of the left and right support rods 35, thereby causing the deformation plate 34 to generate an arc bend, thereby avoiding the two support plates 4 being perpendicular to each other and causing the corners to be too sharp.

[0043] Among them, the limiting structure 31 is provided with a movable plate 311, a limiting plate 312 and a fixed plate 313. There are two fixed plates 313, and the two fixed plates 313 are distributed in parallel on the upper and lower sides of the limiting plate 312. The fixed plate 313 is set on the inner side of the metal plate 32, and the movable plate 311 is slidably matched between the two fixed plates 313. The support rod 35 horizontally passes through the inside of the limiting plate 312, and the support rod 35 is against the inside of the movable plate 311.

[0044] Among them, the movable plate 311 is provided with a slider 3111, a convex groove 3112, a slide plate 3113 and a force plate 3114. The slider 3111 is arranged at the outer end of the support rod 35, and the force plate 3114 is arranged on the side of the slide plate 3113. The slider 3111 is an inverted "I"-shaped structure, and the right half of the "I"-shaped structure coincides with the convex groove 3112. The slider 3111 is against the inside of the force plate 3114, and the slider 3111 slides and cooperates in the convex groove 3112.

[0045] In addition, the force-bearing plate 3114 is stepped on one side close to the support rod 35, and each step is connected at an angle. The support rod 35 slides in the limit plate 312. When the support rod 35 tilts, the limit plate 312 blocks the support rod 35 from tilting. The slide plate 3113 on the same side is provided with two force-bearing plates 3114, and the two force-bearing plates 3114 are relatively arranged at positions corresponding to the outer ends of the support rod 35.

[0046] The movable plate 311 of the present invention passes through the sealing plate 333 on the left, and pushes the slide plate 3113 in the movable plate 311 from the outside, so that the slide plate 3113 translates in the fixed plate 313, and then the slider 3111 connected to the outer end of the support rod 35 slides in the convex groove 3112 in the force-bearing plate 3114. While sliding, the increase in the step of the force-bearing plate 3114 presses the slider 3111, so that the force-bearing plate 3114 moves and is pressed outward by the support rod 35 to expand, thereby increasing the width between the two metal plates 32 and adjusting the curvature of the arc-shaped bending of the deformation plate 34. The two force-bearing plates 3114 on the side of the slide plate 3113 are arranged opposite to each other at the outer ends of the two engaging structures 331. When the support rod 35 is fixed, the two force-bearing plates 3114 are moved by the slide plate 3113, and the two force-bearing plates 3114 press against the two support rods 35 on the same side at different positions, thereby forming an inclined state, so that the four support rods 35 are pulled by the two movable plates 311 and form a shape that is wide at the top and narrow at the bottom, and an arc-shaped curved fan-shaped state is formed with the movable plates 311 through the rotation of the support rods 35. When the template 2 is installed at an angle, the connecting mechanism 3 at the corner follows the templates 2 and the support plates 4 on both sides to perform tilting activities, preventing the connection from being difficult to adjust when the template 2 is assembled at an angle, and allowing the connecting mechanism 3 to be stretched and adjusted according to the size of the crack when the template 2 is assembled at an angle, thereby improving the adaptability of the construction mold.

[0047] The construction method based on the special-shaped multi-pile cap construction mold structure is characterized in that the construction method includes the following specific steps: S1: The support plate 4 is fixedly connected to the fixed block 1. When the foundation is constructed, the support plate 4 rotates on the left and right sides of the connection mechanism 3 with the fixed block 1 as the center, and the support plate 4 drives the template 2 to rotate, and presses the center structure 33 position of the connection mechanism 3 at the corner position from the upper end, so that the movable rod 334 releases the engagement with the support rod 35, and then manually rotates the metal plate 32 and the limiting structure 31 externally, drives the metal plate 32 to rotate at the position of the movable rod 334, and keeps the deformation plate 34 in an arc shape between the two metal plates 32; S2: When the movable rod 334 is continuously pressed, the circular ring 125 is driven to translate, and the triangular block 122 moves with the circular ring 125, and the triangular block 122 is separated from the engagement between the side of the support rod 35 and the force block 351, and then the support rod 35 is rotated. The rotated support rod 35 elastically stretches the spring 124, and the support rod 35 maintains an upward pulling force under the tension of the spring 124, and then after releasing the pressure on the movable rod 334, the circular ring 125 translates in the direction of the hinge ring 121 under the elastic force of the spring rod 332, and under the upward elastic force of the spring 124, the triangular block 122 and the force block 351 on the side of the support rod 35 are mutually abutted and engaged, thereby keeping the rotating support rod 35 fixed; S3: After the support rod 35 is rotated and fixed, the slide plate 3113 is manually pushed from the outside of the sealing plate 333 to slide in the fixed plate 313, and the support rod 35 passes through the limiting plate 312 and then slides in the convex groove 3112 position, through the stepped shape of the force-bearing plate 3114, when the movable plate 311 slides to the highest point of the force-bearing plate 3114, the limiting structure 31 is pushed outward by the support rod 35 while the support rod 35 remains fixed, and the metal plate 32 outside the limiting structure 31 is pushed outward to stretch the sealing plate 333 and the deformation plate 34; S4: The four support rods 35 are distributed in a quadrilateral state on the locking structure 331, wherein the force-bearing plate 3114 is pulled by the slide plate 3113 to translate, and the sliding positions of the two support rods 35 on the same side of the force-bearing plates 3114 installed in opposite directions are different, thereby forming an inclined expansion state, and then the four support rods 35 are synchronously moved by the two movable plates 311 to form a shape that is wide at the top and narrow at the bottom, and an arc-shaped fan-shaped state is formed by the rotation of the support rods 35 and the movable plates 311, and the arc shape of the mold edge is adjusted according to the edge shape of the required special-shaped support platform.

[0048] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A special-shaped multi-pile cap construction mold structure, characterized in that: It comprises a fixed block (1), a template (2), a connecting mechanism (3) and a support plate (4), wherein four fixed blocks (1) are provided, and the four fixed blocks (1) are symmetrically arranged on the left and right sides of the connecting mechanism (3), and every two fixed blocks (1) are arranged on the side of the support plate (4) for rotational connection, and the template (2) is arranged on the other side of the support plate (4); The connecting mechanism (3) is provided with a limiting structure (31), a metal plate (32), a central structure (33), a deformation plate (34) and a support rod (35). Four support rods (35) are provided and are symmetrically arranged on the left and right sides of the central structure (33). The outer ends of the support rods (35) abut against the inside of the limiting structure (31). Two limiting structures (31) are provided and are symmetrically arranged on the inside of the metal plate (32) with the central structure (33) as the center. The deformation plate (34) is arranged on the inside of the metal plate (32). The support rods (35) rotate with the central structure (33) as the center. The support rods (35) drive the deformation plates (34) between the metal plates (32) to bend in an arc shape.

2. The special-shaped multi-pile cap construction mold structure according to claim 1, characterized in that: The central structure (33) is provided with a snap-fit ​​structure (331), a spring rod (332), a sealing plate (333) and a movable rod (334). The snap-fit ​​structures (331) are provided with two, and the movable rod (334) runs through the inside of the two snap-fit ​​structures (331). The sealing plates (333) are provided with two, and the movable rod (334) runs through the left sealing plate (333). The spring rod (332) arranged at the right end of the movable rod (334) is connected to the right sealing plate (333). The support rod (35) is snap-fitted in the snap-fit ​​structure (331). When the movable rod (334) is pushed and the spring rod (332) is compressed, the support rod (35) is disengaged from the snap-fit ​​structure (331).

3. The special-shaped multi-pile cap construction mold structure according to claim 2 is characterized in that: The engaging structure (331) is provided with a limiting ring (3311) and a blocking structure (3312); the movable rod (334) penetrates the center positions of the limiting ring (3311) and the blocking structure (3312); the side of the limiting ring (3311) is arranged on the side of the support rod (35); the sides of the support rod (35) corresponding to the blocking structure (3312) are mutually engaged; when the support rod (35) rotates, the limiting ring (3311) is driven to rotate around the movable rod (334).

4. The special-shaped multi-pile cap construction mold structure and construction method according to claim 3, characterized in that: The blocking structure (3312) is provided with a hinge ring (121), a triangular block (122), a connecting ring (123), a spring (124), and a circular ring (125); the connecting ring (123) is arranged at the outer edge of the circular ring (125); and the side of the connecting ring (123) is provided with symmetrically distributed triangular blocks (122) at positions corresponding to the support rods (35); the movable rod (334) runs through the middle of the hinge ring (121); and the middle of the circular ring (125) is provided at the outer side of the movable rod (334); the left and right ends of the spring (124) are respectively provided on the surfaces of the two support rods (35); the support rods (35) and the hinge ring (121) are hinged and rotated, and the support rods (35) rotate relative to each other to elastically stretch the spring (124); and the side of the support rod (35) is blocked and engaged at positions corresponding to the triangular block (122).

5. The special-shaped multi-pile cap construction mold structure according to claim 4, characterized in that: A force-bearing block (351) is provided on the side of the support rod (35) close to the connecting ring (123); the force-bearing block (351) is a triangular structure; the force-bearing block (351) and the triangular block (122) abut against each other to form a parallelogram structure; the force-bearing block (351) abuts against and engages with the triangular block (122) on the side of the connecting ring (123).

6. The special-shaped multi-pile cap construction mold structure according to claim 1, characterized in that: The limiting structure (31) is provided with a movable plate (311), a limiting plate (312) and a fixed plate (313); two fixed plates (313) are provided, and the two fixed plates (313) are parallelly distributed on the upper and lower sides of the limiting plate (312); the fixed plate (313) is arranged on the inner side of the metal plate (32); the movable plate (311) is slidably matched between the two fixed plates (313); the support rod (35) horizontally passes through the inside of the limiting plate (312), and the support rod (35) abuts against the inside of the movable plate (311).

7. The special-shaped multi-pile cap construction mold structure according to claim 6, characterized in that: The movable plate (311) is provided with a slider (3111), a convex groove (3112), a slide plate (3113) and a force-bearing plate (3114); the slider (3111) is arranged at the outer end of the support rod (35); the force-bearing plate (3114) is arranged on the side of the slide plate (3113); the slider (3111) is an inverted "I"-shaped structure; the right half of the "I"-shaped structure matches the convex groove (3112); the slider (3111) abuts against the inside of the force-bearing plate (3114), and the slider (3111) slides and fits in the convex groove (3112).

8. The construction method of the special-shaped multi-pile cap construction mold structure according to claim 5 or 7 is characterized in that: The construction method comprises the following specific steps: S1: The support plate (4) is fixedly connected to the fixed block (1). When the foundation is constructed, the support plate (4) rotates on the left and right sides of the connection mechanism (3) with the fixed block (1) as the center, and the support plate (4) drives the template (2) to rotate, and presses the center structure (33) position of the connection mechanism (3) at the corner position from the upper end, so that the movable rod (334) releases the engagement with the support rod (35), and then manually rotates the metal plate (32) and the limiting structure (31) externally, drives the metal plate (32) to rotate at the position of the movable rod (334), and keeps the deformation plate (34) in an arc shape between the two metal plates (32); S2: When the movable rod (334) is continuously pressed, the circular ring (125) is driven to translate, and the triangular block (122) moves with the circular ring (125), and the triangular block (122) is separated from the engagement between the side of the support rod (35) and the force block (351), and then the support rod (35) is rotated. The rotated support rod (35) elastically stretches the spring (124), and the support rod (35) maintains an upward pulling force under the tension of the spring (124), and then after releasing the pressure on the movable rod (334), the circular ring (125) translates in the direction of the hinge ring (121) under the elastic force of the spring rod (332), and under the upward elastic force of the spring (124), the triangular block (122) and the force block (351) on the side of the support rod (35) are mutually abutted and engaged, thereby keeping the rotating support rod (35) fixed; S3: After the support rod (35) is rotated and fixed, the slide plate (3113) is manually pushed from the outside of the sealing plate (333) to slide in translation in the fixed plate (313), and the support rod (35) passes through the limiting plate (312) and then slides in the convex groove (3112) position, through the stepped shape of the force-bearing plate (3114), when the movable plate (311) slides to the highest point of the force-bearing plate (3114), the limiting structure (31) is pushed outward by the support rod (35) while the support rod (35) remains fixed, and the metal plate (32) outside the limiting structure (31) is pushed outward to stretch the sealing plate (333) and the deformation plate (34); S4: The four support rods (35) are distributed in a quadrilateral state on the locking structure (331), wherein the force-bearing plate (3114) is pulled by the sliding plate (3113) to move in translation, and the force-bearing plates (3114) installed in opposite directions have different sliding positions for the two support rods (35) on the same side, thereby forming an inclined expansion state, and then the four support rods (35) are synchronously moved by the two movable plates (311) to form a shape that is wide at the top and narrow at the bottom, and an arc-shaped fan-shaped state is formed by the rotation of the support rods (35) and the movable plates (311), and the arc shape of the mold edge is adjusted according to the edge shape of the required special-shaped support platform.

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