Adjustable assembling formwork in construction of thin-walled hollow pier

Abstract

The application discloses a thin-wall hollow pier construction adjustable assembling formwork, and relates to the technical field of highway construction. The formwork comprises a movement preventing mechanism arranged at the upper position of a base and fixedly connected with a solidified concrete layer, is used for hydraulically lifting the whole device, and is embedded into the solidified concrete layer to fix the device. The formwork further comprises a supporting table and a hydraulic equipment. The formwork is capable of preventing leakage. When pouring concrete, the supporting table is fixedly connected with the concrete at the lower position through the embedding assembly, and the hydraulic equipment drives the leakage preventing mechanism to move upwards. The inside of the leakage preventing mechanism is filled with concrete slurry. The supporting table and the jacking table are integral structures. The structure at the lower position of the formwork is not easy to change, and the problem that the formwork often changes during pouring of the concrete and causes serious safety accidents is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of highway construction, in particular to an adjustable assembly formwork in thin-walled hollow pier construction. BACKGROUND

[0002] The inner formwork of the thin-walled hollow pier is usually built with steel or wood formwork. Steel formwork is often used for constant cross-section, and wood formwork is often used for variable cross-section. With large-scale construction of traffic engineering, especially the increasing ratio of bridges and tunnels in mountainous highway, the high pier column in the highway construction in Yunnan-Guizhou Plateau is huge. With the development of highway to deep valley, the thin-walled hollow pier with a height of more than 40m is very common. At present, the construction formwork used for high pier column mainly includes turnover formwork, sliding formwork and climbing formwork. The turnover formwork construction needs to undergo formwork removal and installation for each formwork, and the removal and installation are completed by tower crane and manual work. The safety risk of high-altitude operation is large, and the frequent removal and installation of formwork also leads to low construction efficiency. The climbing formwork construction has high mechanization degree, but the formwork needs to be lifted and recombined after the formwork leaves the concrete surface after the concrete is fully solidified. The climbing formwork equipment has high cost and low construction efficiency due to the influence of concrete age. The average speed of turnover formwork and climbing formwork in the construction of thin-walled hollow pier is difficult to exceed 1m per day. The sliding formwork construction directly slides on the surface of the concrete which is not fully solidified, and the construction is not affected by the age and is very efficient. However, the formwork directly rubs on the surface of the concrete which is not fully solidified, resulting in poor appearance quality or quality defects of the pier column.

[0003] The existing adjustable assembly formwork in the construction of thin-walled hollow pier has the problems of frequent formwork movement during pouring of concrete, leading to serious safety accidents, and difficulty in cleaning the concrete slurry flowing out of the gap between the forming plates after solidification. SUMMARY

[0004] The present application provides an adjustable assembly formwork in the construction of thin-walled hollow pier, which solves the problems mentioned in the background.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: an adjustable assembly formwork in the construction of thin-walled hollow pier, comprising

[0006] A base is provided, the top of the base is fixedly connected with a pier body, the top of the base is fixedly connected with a stable rod near the middle part, and the inside of the pier body is fixedly connected with a steel bar.

[0007] The anti-moving mechanism is arranged at the upper position of the base and is fixedly connected with the solidified concrete layer, is used for lifting the device as a whole by the hydraulic equipment, and is buried in the solidified concrete layer to fix the device; the anti-moving mechanism comprises a support table and a hydraulic equipment, the support table is an integral plate structure made of metal material by casting, a burying assembly is fixedly connected to the surface of the support table, a fixing assembly is fixedly connected to the surface of the support table and close to the burying assembly, and the fixing assembly drives the burying assembly to turn into the interior of the solidified concrete.

[0008] The anti-leakage mechanism is combined with the mold to pour the concrete, the cavity formed by the anti-leakage mechanism is used for forming the thin-wall hollow pier, the anti-leakage mechanism leaves the surface of the concrete after the concrete is fully solidified, the hydraulic equipment drives the anti-leakage mechanism to be lifted, the anti-leakage mechanism is combined with the mold again to form the thin-wall hollow pier, the bottom of the pier body is a prefabricated concrete body, a hole is formed in the surface of the concrete, and the fixing assembly is buried and fixed when the prefabricated concrete is formed, and the burying assembly extends into the interior of the fixing assembly.

[0009] Preferably, the inner side surface of the support table is fixedly connected with a jacking rod, one end of the jacking rod away from the support table is fixedly connected with the hydraulic equipment, and the top end of the hydraulic equipment is fixedly connected with a jacking table.

[0010] Preferably, the burying assembly comprises a hoist, the surface of the hoist is fixedly connected with the surface of the support table, and the input end of the hoist is threadedly connected with a lead screw.

[0011] Preferably, the surface of the hoist is fixedly connected with an internal thread cylinder, the inner side surface of the internal thread cylinder is provided with threads, and the inner side surface of the internal thread cylinder is connected with the surface of the lead screw in a threaded mode.

[0012] Preferably, the fixing assembly comprises a fixing cylinder, the inner side surface of the fixing cylinder is provided with a threaded groove, and the inner side surface of the fixing cylinder is connected with the surface of the lead screw in a threaded groove mode.

[0013] Preferably, the surface of the fixing cylinder is fixedly connected with a limiting ring, the surface of the limiting ring is fixedly connected with a convex rib, and one side of the surface of the support table close to the lead screw is provided with a hole.

[0014] Preferably, the anti-leakage mechanism comprises a barrier wall, the bottom of the barrier wall is fixedly connected with the top of the jacking table, the top of the barrier wall is fixedly connected with a support assembly, and the surface of the support assembly is fixedly connected with a connecting wall.

[0015] Preferably, the surface of the supporting assembly is fixedly connected with a moving assembly, the inner side surface of the supporting assembly slides on the surface of the stabilizing rod, the surface of the moving assembly is fixedly connected with a first plate body and a second plate body respectively, the supporting assembly slides on the surface of the stabilizing rod, the cooperation is prior art, the connecting wall and the blocking wall are pulled upward by the supporting assembly, and the first plate body and the second plate body are filled with concrete slurry.

[0016] Preferably, the supporting assembly comprises a sliding table, the inner side surface of the sliding table slides on the surface of the stabilizing rod through threads, and the bottom of the sliding table is fixedly connected with a limiting table, and the surface of the limiting table is fixedly connected with a supporting plate.

[0017] Preferably, the bottom of the supporting plate is fixedly connected with a connecting plate, the bottom of the first plate body slides on the inner side surface of the blocking wall, the bottom of the second plate body slides on the inner side surface of the connecting wall, the supporting plate fixedly supports the blocking wall and the connecting wall, and the inner side surface of the sliding table slides on the surface of the stabilizing rod through threads, so that the blocking wall and the connecting wall are lifted.

[0018] Preferably, the moving assembly comprises a sleeve plate, the inner side surface of the sleeve plate is fixedly connected with the surface of the supporting plate, and a motor is fixedly connected to the lower position of the surface of the sleeve plate, the sleeve plate supports the motor, the inner side surface of the sliding table slides on the surface of the stabilizing rod through threads, the first plate body shapes the outer wall of the pier body, and the second plate body shapes the inner wall of the pier body.

[0019] Preferably, the output end of the motor is fixedly connected with a threaded rod, the surface of the threaded rod is threadedly connected with a threaded block, and the surface of the threaded block is rotatably connected with the surface of the first plate body.

[0020] The application provides a thin-walled hollow pier construction adjustable assembly formwork.

[0021] 1. The thin-walled hollow pier construction adjustable assembly formwork, the leakage prevention mechanism slides on the surface of the stabilizing rod upward, when the concrete is poured, the supporting table is fixedly connected with the concrete at the lower position through the embedding assembly, the hydraulic equipment drives the leakage prevention mechanism to move upward, the leakage prevention mechanism is filled with concrete slurry in the inside, the supporting table and the jacking table are integral structures, the structure at the lower position of the formwork is not easy to change, and the problem that the formwork often changes to cause serious safety accidents when the concrete is poured is solved.

[0022] 2、The adjustable assembly formwork in the construction of the thin-walled hollow pier, the inner threaded cylinder is fixedly connected to the surface of the hoist, when the screw rod rotates close to the fixed cylinder, the inner threaded cylinder makes the screw rod more stable when rotating, the support table is fixed, the inside of the hydraulic equipment inputs hydraulic pressure, the jacking table drives the anti-leakage mechanism to move upwards to pour concrete, after the concrete solidifies, the screw rod is rotated out of the fixed cylinder, the hydraulic equipment contracts, the support table is driven to move upwards, so that the concrete is poured and formed into a thin-walled hollow pier.

[0023] 3、The adjustable assembly formwork in the construction of the thin-walled hollow pier, during the slurry pouring process, the fixed assembly is embedded in the concrete for fixation, the number of the moving assembly is two and is arranged on opposite surfaces, when the concrete is poured, the moving assembly exerts a pressing force on the two first plate bodies, at the same time, the moving assembly exerts a pressing force on the two second plate bodies, so that the formed plate bodies are pressed against each other, avoiding the plate bodies from being squeezed apart and the concrete from flowing out of the gap between the formed plate bodies, solving the problem of difficult cleaning after the concrete slurry flows out of the gap between the formed plate bodies and solidifies.

[0024] 4、The adjustable assembly formwork in the construction of the thin-walled hollow pier, the surfaces of the first plate body and the second plate body are rotatably connected with threaded blocks, when the motor drives the threaded rod to rotate, the threads on the surface of the threaded rod make the threaded blocks rotate, the lifting force of the threads makes the oppositely arranged first plate bodies approach each other and press, achieving the purpose of mold locking, avoiding the slurry from flowing out of the gap between the two first plate bodies, the cooperation of the first plate body and the second plate body enables the outer wall and the inner wall of the pier body to be formed at the same time.

[0025] 5、The adjustable assembly formwork in the construction of the thin-walled hollow pier, when the screw rod is rotated into the fixed cylinder, the fixed cylinder and the screw rod are stably connected through threads, when the concrete is poured, the screw rod and the pouring position are separated by a fixed cylinder, when the poured concrete between the first plate body and the second plate body solidifies, the hydraulic equipment contracts, the screw rod moves upwards to the fixed cylinder in the upper position and is rotated in, and then the next pouring and forming operation is carried out, the stability of the device movement can be effectively improved by moving the fixed cylinder through the sliding table. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic view of the whole adjustable assembly formwork in the construction of the thin-walled hollow pier.

[0027] Figure 2 It is a structure schematic view of the disassembled adjustable assembly formwork in the construction of the thin-walled hollow pier.

[0028] Figure 3 It is a structure schematic view of the anti-movement mechanism.

[0029] Figure 4 It is a structure schematic view of the embedded assembly.

[0030] Figure 5This is a schematic diagram of the structure of the fixing component of the present invention;

[0031] Figure 6 This is a schematic diagram of the leak-proof mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the support component of the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of the mobile component of the present invention.

[0034] In the diagram: 1. Base; 2. Pier; 3. Reinforcing bar; 4. Stabilizing bar; 5. Anti-movement mechanism; 51. Support platform; 52. Top rod; 53. Hydraulic equipment; 54. Lifting platform; 55. Embedded component; 551. Hoist; 552. Internal threaded cylinder; 553. Screw; 56. Fixing component; 561. Fixing cylinder; 562. Threaded groove; 563. Limiting ring; 564. Protruding rib; 6. Leakage prevention mechanism; 61. Barrier wall; 62. Support component; 621. Slide table; 622. Limiting platform; 623. Support plate; 624. Connecting plate; 63. Connecting wall; 64. First plate; 65. Second plate; 66. Moving component; 661. Sleeve plate; 662. Motor; 663. Threaded rod; 664. Threaded block. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] like Figures 1-3 As shown, the present invention provides a technical solution: an adjustable assembly template for the construction of thin-walled hollow piers, comprising...

[0037] The base 1 has a pier 2 fixedly connected to its top. A stabilizing rod 4 is fixedly connected to the top of the base 1 near the middle. A steel bar 3 is fixedly connected inside the pier 2.

[0038] The anti-movement mechanism 5 is located above the base 1 and is fixedly connected to the solidified concrete layer. It is used to hydraulically lift the entire device and embed it into the solidified concrete layer to fix the device. It includes a support platform 51 and a hydraulic device 53. The support platform 51 is an integral plate structure cast from metal material. An embedded component 55 is fixedly connected to the surface of the support platform 51. A fixing component 56 is fixedly connected to the surface of the support platform 51 near the embedded component 55. The fixing component 56 drives the embedded component 55 to rotate into the interior of the solidified concrete.

[0039] The anti-leakage mechanism 6 is combined with the mold for pouring concrete, the cavity formed by the anti-leakage mechanism 6 is used for forming the thin-walled hollow pier, the anti-leakage mechanism 6 is separated from the surface of the concrete after the concrete is fully solidified, the hydraulic equipment 53 drives the anti-leakage mechanism 6 to lift, and the anti-leakage mechanism 6 is combined with the mold again to form the thin-walled hollow pier;

[0040] The inner side surface of the support table 51 is fixedly connected with the jacking rod 52, one end of the jacking rod 52 away from the support table 51 is fixedly connected with the hydraulic equipment 53, and the top end of the hydraulic equipment 53 is fixedly connected with the jacking table 54.

[0041] In use, the bottom of the pier body 2 is a prefabricated concrete body, and the surface of the concrete is provided with a hole, the fixing assembly 56 is embedded and fixed when the prefabricated concrete is formed, the embedding assembly 55 extends to the inside of the fixing assembly 56, the anti-leakage mechanism 6 slides upward on the surface of the stabilizing rod 4, and the support table 51 is fixedly connected with the concrete at the lower position through the embedding assembly 55 when the concrete is poured, the hydraulic equipment 53 drives the anti-leakage mechanism 6 to move upward, the inside of the anti-leakage mechanism 6 is filled with concrete slurry, and the support table 51 and the jacking table 54 are integral structures, so that the structure at the lower position of the mold is not easy to change, and the problem that the mold is often changed during pouring of the concrete, causing serious safety accidents, is solved.

[0042] As shown in Figure 3 , Figure 4 , Figure 5 The embedding assembly 55 includes the opening and closing machine 551, the surface of the opening and closing machine 551 is fixedly connected with the surface of the support table 51, the input end of the opening and closing machine 551 is threadedly connected with the lead screw 553, the surface of the opening and closing machine 551 is fixedly connected with the internally-threaded cylinder 552, the inner side surface of the internally-threaded cylinder 552 is provided with threads, the inner side surface of the internally-threaded cylinder 552 is connected with the surface of the lead screw 553 in a threaded mode, the fixing assembly 56 includes the fixing cylinder 561, the inner side surface of the fixing cylinder 561 is provided with the threaded groove 562, the inner side surface of the fixing cylinder 561 is connected with the surface of the lead screw 553 in a threaded mode, the surface of the fixing cylinder 561 is fixedly connected with the limiting ring 563, the surface of the limiting ring 563 is fixedly connected with the convex rib 564, and the side of the surface of the support table 51 close to the lead screw 553 is provided with a hole.

[0043] In use, the opening and closing machine 551 drives the lead screw 553 to rotate into the fixed cylinder 561, when the pier body 2 is formed, the surface of the fixed cylinder 561 is embedded in the inside of the concrete, and the fixed cylinder 561 is fixed when the concrete is fixed. The support table 51 is limited on the surface of the pier body 2, the surface of the opening and closing machine 551 is fixedly connected with the internal thread cylinder 552, when the lead screw 553 rotates close to the fixed cylinder 561, the internal thread cylinder 552 makes the lead screw 553 rotate more stably, the support table 51 is fixed, the inside of the hydraulic device 53 inputs hydraulic pressure, the jacking table 54 drives the anti-leakage mechanism 6 to move upwards to pour concrete, after the concrete solidifies, the lead screw 553 rotates out of the fixed cylinder 561, the hydraulic device 53 contracts, and the support table 51 is driven to move upwards, so that the concrete is poured and formed into a thin-walled hollow pier.

[0044] As shown in Figure 3 , Figure 6 , the support table 51 is an integral plate structure of metal material casted, the support table 51 is fixedly connected with the embedded assembly 55 on the surface, the support table 51 is fixedly connected with the fixed assembly 56 on the surface close to the embedded assembly 55, the fixed assembly 56 drives the embedded assembly 55 to rotate into the inside of the solidified concrete, the inside of the support table 51 is fixedly connected with the ejector rod 52, one end of the ejector rod 52 away from the support table 51 is fixedly connected with the hydraulic device 53, the top of the hydraulic device 53 is fixedly connected with the jacking table 54, the anti-leakage mechanism 6 comprises a blocking wall 61, the bottom of the blocking wall 61 is fixedly connected with the top of the jacking table 54, the top of the blocking wall 61 is fixedly connected with the support assembly 62, the surface of the support assembly 62 is fixedly connected with the connecting wall 63, the surface of the support assembly 62 is fixedly connected with the moving assembly 66, the inside of the support assembly 62 slides on the surface of the stabilizing rod 4, and the surface of the moving assembly 66 is fixedly connected with the first plate body 64 and the second plate body 65 respectively.

[0045] In use, the support assembly 62 slides on the surface of the stabilizing rod 4, which is a prior art, the support assembly 62 drives the connecting wall 63 and the blocking wall 61 to pull upwards, the first plate body 64 and the second plate body 65 are poured with concrete slurry, the fixed assembly 56 is embedded in the concrete to be fixed during the pouring of the slurry, the number of the moving assembly 66 is two and is arranged on opposite sides, when the concrete is poured, the moving assembly 66 applies pressing force to the two first plate bodies 64, at the same time, the moving assembly 66 applies pressing force to the two second plate bodies 65, so that the formed plate bodies are pressed against each other, avoiding that the plate bodies are squeezed apart and the concrete flows out from the gap between the formed plate bodies during the pouring of the concrete, and solving the problem that it is difficult to clean the solidified concrete slurry flowing out from the gap between the formed plate bodies.

[0046] As shown in Figure 6 , Figure 7 , Figure 8As shown, the support assembly 62 includes a sliding table 621, the inner side of the sliding table 621 is threaded on the surface of the stable rod 4, the bottom of the sliding table 621 is fixedly connected with a limiting table 622, the surface of the limiting table 622 is fixedly connected with a support plate 623, the bottom of the support plate 623 is fixedly connected with a connecting plate 624, the bottom of the first plate body 64 slides on the inner side of the blocking wall 61, the bottom of the second plate body 65 slides on the inner side of the connecting wall 63, and the moving assembly 66 includes a sleeve plate 661, the inner side of the sleeve plate 661 is fixedly connected with the surface of the support plate 623, a motor 662 is fixedly connected to the lower position of the surface of the sleeve plate 661, the output end of the motor 662 is fixedly connected with a threaded rod 663, and the surface of the threaded rod 663 is connected with a threaded block 664 in a threaded mode. The surface of the threaded block 664 is rotatably connected with the surface of the first plate body 64.

[0047] In use, the sleeve plate 661 supports the motor 662, the inner side of the sliding table 621 is threaded on the surface of the stable rod 4, the first plate body 64 shapes the outer wall of the pier body 2, the second plate body 65 shapes the inner wall of the pier body 2, and the surfaces of the first plate body 64 and the second plate body 65 are rotatably connected with the threaded block 664. When the motor 662 drives the threaded rod 663 to rotate, the threads on the surface of the threaded rod 663 make the threaded block 664 rotate, and the lifting force of the threads makes the oppositely arranged first plate bodies 64 approach and extrude each other, so that the mold is locked, and the slurry is prevented from flowing out of the gap between the two first plate bodies 64. The cooperation of the first plate body 64 and the second plate body 65 allows the outer wall and the inner wall of the pier body 2 to be shaped at the same time.

[0048] As shown in Figure 5 , Figure 7 , the inner side of the fixed cylinder 561 is provided with a threaded groove 562, the inner side of the fixed cylinder 561 is connected with the surface of the lead screw 553 in a threaded mode, the surface of the fixed cylinder 561 is fixedly connected with a limiting ring 563, the surface of the limiting ring 563 is fixedly connected with a convex rib 564, a hole is formed in the side of the support table 51 close to the lead screw 553, the inner side of the sliding table 621 is threaded on the surface of the stable rod 4, the bottom of the sliding table 621 is fixedly connected with the limiting table 622, the surface of the limiting table 622 is fixedly connected with the support plate 623, the bottom of the support plate 623 is fixedly connected with the connecting plate 624, the bottom of the first plate body 64 slides on the inner side of the blocking wall 61, and the bottom of the second plate body 65 slides on the inner side of the connecting wall 63.

[0049] In use, the support plate 623 supports the barrier wall 61 and the connecting wall 63, the inner side surface of the sliding table 621 is screwed on the surface of the stabilizing rod 4 to lift the barrier wall 61 and the connecting wall 63, and when the screw rod 553 is screwed into the fixed cylinder 561, the fixed cylinder 561 is stably connected with the screw rod 553 through screwing, the screw rod 553 is separated from the pouring position by one fixed cylinder 561 during concrete pouring, and when the concrete poured between the first plate body 64 and the second plate body 65 is solidified, the hydraulic device 53 is retracted, the screw rod 553 is moved upward to the fixed cylinder 561 at the upper position and is screwed in, and then the next pouring and forming operation is performed, and the movement stability of the device can be effectively improved by moving the sliding table 621 in cooperation with the fixed cylinder 561.

[0050] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element by use of the phrase "comprising a..." does not exclude the presence of additional like elements.

Claims

1. An adjustable assembly formwork for the construction of thin-walled hollow piers, characterized in that: include The base (1) has a fixed connection to the top of the base (1) and a fixed connection to the middle of the top of the base (1) and a fixed connection to the steel bar (3). An anti-movement mechanism (5) is set above the base (1) and is used to hydraulically lift the entire device and embed it into the solidified concrete layer to fix the device. It includes a support platform (51) and a hydraulic device (53). The support platform (51) is an integral plate structure cast from metal material. An embedded component (55) is fixedly connected to the surface of the support platform (51). A fixing component (56) is fixedly connected to the surface of the support platform (51) near the embedded component (55). The fixing component (56) drives the embedded component (55) to rotate into the interior of the solidified concrete. Leakage prevention mechanism (6), the leakage prevention mechanism (6) closes the mold for pouring concrete, the cavity formed by the leakage prevention mechanism (6) is used for the forming of thin-walled hollow piers, after the concrete has fully solidified, the leakage prevention mechanism (6) leaves the surface of the concrete, the hydraulic equipment (53) drives the leakage prevention mechanism (6) to be lifted, and the leakage prevention mechanism (6) closes the mold again to form the thin-walled hollow piers; The embedded component (55) includes a gate hoist (551), the surface of which is fixedly connected to the surface of the support platform (51), and the input end of the gate hoist (551) is connected to a lead screw (553) by a thread. The fixing component (56) includes a fixing cylinder (561), and the inner side of the fixing cylinder (561) is provided with a threaded groove (562). The inner side of the fixing cylinder (561) is connected to the surface of the lead screw (553) through the threaded groove (562). When the pier body (2) is formed, the surface of the fixing cylinder (561) is embedded in the interior of the concrete, and the fixing cylinder (561) is fixed when the concrete is fixed.

2. The adjustable assembly formwork for thin-walled hollow pier construction according to claim 1, characterized in that: A top rod (52) is fixedly connected to the inner side of the support platform (51). A hydraulic device (53) is fixedly connected to the end of the top rod (52) away from the support platform (51). A lifting platform (54) is fixedly connected to the top of the hydraulic device (53).

3. The adjustable assembly formwork for thin-walled hollow pier construction according to claim 1, characterized in that: The surface of the hoist (551) is fixedly connected to an internal threaded cylinder (552), and the inner side of the internal threaded cylinder (552) is threaded. The inner side of the internal threaded cylinder (552) is connected to the surface of the lead screw (553) through the thread.

4. The adjustable assembly formwork for thin-walled hollow pier construction according to claim 1, characterized in that: A limiting ring (563) is fixedly connected to the surface of the fixed cylinder (561), and a protruding rib (564) is fixedly connected to the surface of the limiting ring (563). A hole is opened on the side of the support platform (51) near the lead screw (553).

5. The adjustable assembly formwork for thin-walled hollow pier construction according to claim 1, characterized in that: The leak prevention mechanism (6) includes a barrier wall (61), the bottom of which is fixedly connected to the top of the lifting platform (54), and a support component (62) is fixedly connected to the top of the barrier wall (61). A connecting wall (63) is fixedly connected to the surface of the support component (62).

6. The adjustable assembly formwork for thin-walled hollow pier construction according to claim 5, characterized in that: The surface of the support component (62) is fixedly connected to the moving component (66), the inner side of the support component (62) slides on the surface of the stabilizing rod (4), and the surface of the moving component (66) is fixedly connected to the first plate (64) and the second plate (65).

7. The adjustable assembly formwork for thin-walled hollow pier construction according to claim 6, characterized in that: The moving component (66) includes a sleeve (661), the inner side of which is fixedly connected to the surface of the support plate (623), and a motor (662) is fixedly connected to the lower part of the surface of the sleeve (661).

8. The adjustable assembly formwork for thin-walled hollow pier construction according to claim 7, characterized in that: The output end of the motor (662) is fixedly connected to a threaded rod (663), and a threaded block (664) is threadedly connected to the surface of the threaded rod (663). The surface of the threaded block (664) is rotatably connected to the surface of the first plate (64).

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