Support mold for concrete pouring and construction method

Abstract

The invention discloses a support mold for concrete pouring and a construction method, and relates to the technical field of building construction. The device comprises a chassis part, an inner guide part, an outer sleeve part, a lifting pipe part, a rotating part, a mold batten, a mold combination plate and the like. The center of the chassis part is provided with a connecting column body and a mounting screw hole, and the bottom threaded section of the inner guide part is screwed to the mounting screw hole and matched with a locking nut. The outer sleeve piece is provided with a barrel cavity and a penetrating groove, the first threaded section of the lifting pipe piece is inserted into the barrel cavity through the penetrating groove and matched with the inner guide piece, and the rotating piece is screwed to the protruding portion of the rotating piece. The die batten is connected with the lifting pipe fitting through the welding steel pipe, and the bending area of the bending sinking part of the die combination plate is fixedly installed on the edge of the die batten. According to the concrete pouring mold, it can be guaranteed that the position state is accurate when the concrete pouring mold is spliced, the overall firmness is improved, mounting and dismounting are more convenient and faster, and therefore efficient construction work of the concrete pouring mold is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a support mold for concrete pouring and a construction method thereof. Background Art

[0002] In modern construction projects, concrete structures are widely used in various building facilities, such as bridges, high-rise buildings, industrial factories, etc. During the concrete pouring process, the support mold plays a crucial role. It provides a shaping space for the concrete and bears the weight of the concrete and construction loads.

[0003] For the mold part, traditional molds mainly adopt a wooden structure. The installation and splicing method is not precise enough. In order to ensure that the support surface at the top of the mold reaches the required horizontal state, and traditional molds are large in size and weight, a large amount of manual on-site adjustment and fixation are required. This not only consumes a large amount of manpower and time, but also is difficult to ensure the tightness of the mold splicing seam.

[0004] In addition, when traditional molds are installed and used, when the mold support is fixed, generally, wooden stick supports are directly fixed together with nails, or steel pipe supports are bundled together with clamps and iron bars. There are difficulties in firmness and the convenience of installation and disassembly.

[0005] In summary, how to ensure the accuracy of the position state when the concrete pouring mold is spliced, and further improve the overall firmness of the concrete pouring mold and the convenience of installation and disassembly has become a problem to be solved. Summary of the Invention

[0006] To solve the above technical problems, the present invention provides a support mold for concrete pouring and a construction method thereof, thereby ensuring the accuracy of the position state when the concrete pouring mold is spliced, further improving the overall firmness of the concrete pouring mold and the convenience of installation and disassembly, and realizing the efficient construction operation of the concrete pouring mold.

[0007] The present invention is achieved through the following technical solutions:

[0008] A support mold for concrete pouring includes a chassis member, an inner guide member vertically installed at the central position on the upper side of the chassis member, an outer sleeve member sleeved around the outer periphery of the inner guide member and fixedly connected to the chassis member at the bottom, a lifting pipe member movably inserted into the outer sleeve member and guidingly cooperating with the inner guide member, a rotating member installed above the outer sleeve member and screwed to the lifting pipe member, a mold strip plate positioned and installed at the top end of the lifting pipe member, and a plurality of mold combination plates fixedly installed between adjacent two mold strip plates.

[0009] A raised connecting column is provided at the central position on the upper side of the chassis part, and a central mounting screw hole is provided in the connecting column. The bottom of the inner guide part is provided with a second threaded section, and the second threaded section is screwed and installed at the position of the central mounting screw hole, and the second threaded section is configured with a locking nut. The outer sleeve part is provided with a cylindrical cavity with an open bottom side, and a through groove communicating with the cylindrical cavity downward is provided at the central position of the top plate of the outer sleeve part. The lifting pipe part is divided into a first threaded section at the lower part and a supporting section at the upper part. The first threaded section of the lifting pipe part is inserted into the cylindrical cavity through the through groove, and the inner guide part is inserted upward into the inside of the lifting pipe part, and the rotating part is screwed at the position of the first threaded section protruding from the top plate of the outer sleeve part. The die strip plate includes a skeleton plate and welded steel pipes welded to both ends of the bottom side of the skeleton plate. The upper side end of the supporting section is inserted and fixedly connected with the welded steel pipe. The die combination plate includes a main board part and bent and sunken parts on both sides of the main board part. A bent area is formed on the upper side of the bent and sunken parts, and the edge area of the die strip plate is fixedly installed in the bent area of the bent and sunken parts.

[0010] As a preferred technical solution of the bracket die of the present invention: The chassis part is provided with a plurality of circumferential mounting screw holes around the connecting column, and a ring plate is provided on the outer ring side of the bottom of the outer sleeve part. The ring plate is provided with vertical holes matching the circumferential mounting screw holes, and a second fixing bolt is fixedly installed at the aligned vertical holes and circumferential mounting screw holes.

[0011] As a preferred technical solution of the bracket die of the present invention: The rotating part includes a rotating ring, a threaded through hole located inside the rotating ring, and a plurality of rotating handles located outside the rotating ring. The rotating ring is screwed and matched with the first threaded section through the threaded through hole. The through groove is a circular opening groove, and the diameter of the rotating ring is larger than the diameter of the through groove.

[0012] As a preferred technical solution of the bracket die of the present invention: The inner guide part includes a longitudinal guide rod located above the second threaded section, and the longitudinal guide rod is inserted into the inner cavity of the lifting pipe part through the bottom opening of the lifting pipe part.

[0013] As a preferred technical solution of the bracket die of the present invention: The welded steel pipe includes an insertion cavity with an opening facing downward, and the top of the supporting section is inserted into the inside of the insertion cavity. A first through hole horizontally penetrating the supporting section is provided at the top of the supporting section, and a second through hole horizontally penetrating the welded steel pipe is provided in the welded steel pipe. The first through hole and the second through hole are aligned and matched, and a pin part is installed.

[0014] As a preferred technical solution of the bracket die of the present invention: The vertical dimension of the bent area of the bent and sunken part is the same as the thickness dimension of the die strip plate.

[0015] As a preferred technical solution of the bracket die of the present invention: A plurality of welding screws are welded to the bottom side of the skeleton plate, and lower through holes matching the welding screws are provided in the bent and sunken parts. The welding screws pass through the lower through holes downward and nuts are installed.

[0016] The present invention also provides a construction method for a support mold for concrete pouring, including the following steps:

[0017] S1. Place two chassis parts according to the construction position and the length of the mold strip.

[0018] S2. Vertically install an inner guide on the upper side of the chassis part and lock the inner guide with a locking nut.

[0019] S3. Sleeve an outer sleeve around the outer periphery of the inner guide, and fixedly install the bottom side of the outer sleeve on the upper side of the chassis part.

[0020] S4. Pre-screw the rotating part at the topmost position of the first threaded section of the lifting pipe fitting, and insert the lifting pipe fitting into the through groove of the outer sleeve and insert and fit it with the inner guide.

[0021] S5. Align and install one of the welded steel pipes at the bottom side of the mold strip with the top end of one lifting pipe fitting, and align and install the other welded steel pipe at the bottom side of the mold strip with the top end of the other lifting pipe fitting.

[0022] S6. Rotate the rotating part to gradually raise the mold strip to the specified height position.

[0023] S7. According to the steps of S1 to S6, install the chassis parts, inner guides, outer sleeves, rotating parts, lifting pipe fittings, and mold strips at the remaining positions.

[0024] S8. Use a double ladder to install the mold combination plates one by one from below the adjacent mold strips.

[0025] S9. During disassembly, complete the disassembly of the support mold in the reverse order of assembly.

[0026] Compared with the existing technology, the beneficial effects of the present invention are as follows:

[0027] Based on the chassis part as the support foundation, the present invention configures a combined guiding structure of an inner guide and an outer sleeve, and designs a lifting pipe fitting with a rotating part. The lifting pipe fitting is directly inserted and fitted into the combined guiding structure of the inner guide and the outer sleeve, and a lightweight mold strip is installed on the upper side of the lifting pipe fitting. By rotating the rotating part in a convenient way, the lifting pipe fitting is lifted to the specified height position. Finally, the mold combination plates are directly assembled one by one to complete the installation of the support mold, which not only ensures the accuracy of the position state when the concrete pouring mold is spliced, but also further improves the overall firmness of the concrete pouring mold and the convenience of installation and disassembly, realizing the efficient construction operation of the concrete pouring mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall installation structure of the support mold in the present invention.

[0029] Figure 2 It is a schematic bottom view structure of the support mold in the present invention.

[0030] Figure 3 It is a schematic diagram of disassembling parts in the present invention.

[0031] Figure 4 It is a schematic structure diagram of the mold strip board and the mold combination board in the present invention.

[0032] Figure 5 It is a schematic structure diagram of the chassis part, the outer sleeve part and the inner guide part in the present invention.

[0033] Figure 6 It is a schematic structure diagram of the lifting pipe fitting and the rotating part in the present invention.

[0034] Wherein: 1 - chassis part, 101 - connecting column body, 102 - ring position mounting hole, 103 - central mounting screw hole; 2 - outer sleeve part, 201 - barrel cavity, 202 - through groove, 203 - ring plate, 204 - vertical hole; 3 - lifting pipe fitting, 301 - first threaded section, 302 - support section, 303 - first insertion through hole; 4 - rotating part, 401 - rotating ring, 402 - threaded through hole, 403 - rotating handle; 5 - mold strip board, 501 - skeleton board, 502 - welding screw, 503 - welding steel pipe, 5031 - insertion cavity, 5032 - second insertion hole; 6 - mold combination board, 601 - main board part, 602 - bent and sunken part, 6021 - lower through hole, 603 - bending area; 7 - inner guide part, 701 - second threaded section, 702 - longitudinal guide rod, 703 - locking nut; 8 - second fixing bolt. Detailed implementation manners

[0035] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the following further elaborates on the present invention in combination with the attached Figures 1 to 6 drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] Embodiment 1. The main structure of the support mold for concrete pouring in the present invention is as follows:

[0037] (1) Chassis part: The chassis part 1 serves as the support foundation of the entire support mold. A convex connecting column body 101 is provided at the central position of the chassis part 1. The connecting column body 101 is provided with a central mounting screw hole 103, and a plurality of ring position mounting screw holes 102 are provided around the connecting column body 101.

[0038] ㈡ Inner guide part: A second threaded section 701 is provided at the bottom of the inner guide part 7, and it is screwed and installed at the position of the central installation screw hole 103 of the connecting column 101 of the chassis part 1 through the second threaded section 701. The second threaded section 701 is configured with a locking nut 703 for fastening the connection between the inner guide part 7 and the connecting column 101. The inner guide part 7 further includes a longitudinal guide rod 702 located above the second threaded section 701.

[0039] ㈢ Outer sleeve part: The outer sleeve part 2 is provided with a cylindrical cavity 201 with an open bottom side. A through groove 202 communicating downward with the cylindrical cavity 201 is opened at the center position of its top plate. An annular plate 203 is provided on the outer ring side at the bottom of the outer sleeve part 2, and a vertical hole 204 matching the circumferential installation screw hole 102 of the chassis part 1 is opened on the annular plate 203. The outer sleeve part 2 is fixed on the chassis part 1 through the second fixing bolt 8.

[0040] ㈣ Lifting pipe part: The lifting pipe part 3 is divided into a first threaded section 301 at the lower part and a support section 302 at the upper part. The first threaded section 301 is inserted into the cylindrical cavity 201 through the through groove 202 and is in guiding cooperation with the longitudinal guide rod 702 of the inner guide part 7. The upper side end of the support section 302 is used for installing the die strip plate 5.

[0041] ㈤ Rotating part: The rotating part 4 includes a rotating ring 401, a threaded through hole 402 located inside the rotating ring 401, and a plurality of rotating handles 403 located outside the rotating ring 401. The rotating ring 401 is in screwed cooperation with the first threaded section 301 of the lifting pipe part 3 through the threaded through hole 402, and the diameter dimension of the rotating ring 401 is larger than the diameter dimension of the through groove 202.

[0042] ㈥ Die strip plate: The die strip plate 5 includes a skeleton plate 501 and welded steel pipes 503 welded to both side ends of the bottom side of the skeleton plate 501. The welded steel pipe 503 includes an insertion cavity 5031 with an opening facing downward. The top of the support section 302 is inserted inside the insertion cavity 5031. A first through hole 303 horizontally penetrating the support section 302 is opened at the top of the support section 302, and a second through hole 5032 horizontally penetrating the welded steel pipe 503 is opened on the welded steel pipe 503. It is fixed through a pin part. A plurality of welded screw rods 502 are also welded to the bottom side of the skeleton plate 501.

[0043] ㈦ Die combination plate: The die combination plate 6 includes a main board part 601 and bent and sunken parts 602 located on both sides of the main board part 601. A bent area 603 is formed on the upper side of the bent and sunken part 602. The edge area of the die strip plate 5 is fixedly connected to the bent area 603 of the bent and sunken part 602 through the welded screw rod 502. A lower through hole 6021 matching the welded screw rod 502 is opened on the bent and sunken part 602.

[0044] Example 3. The main construction method of the concrete pouring support mold in the present invention is as follows:

[0045] Step 1. Construction Preparation: Determine the length of the die strip 5 according to the specific requirements of the concrete pouring construction. For example, if a concrete structure of a specific size is to be poured, calculate the appropriate length of the die strip 5 based on parameters such as the width and length of the structure, and then pre-purchase or lease the appropriate die building materials according to the actual project. At the same time, prepare auxiliary installation tools such as the herringbone frame.

[0046] Step 2. Placement of the Chassis Parts: Place two chassis parts 1 accurately at the construction position according to the length of the die strip 5 determined in advance. Ensure that the chassis parts 1 are placed stably with their connecting columns 101 facing upwards, providing an accurate basic position for the subsequent installation of the inner guide part 7 (as shown in Figure 1 , Figure 2 ).

[0047] Step 3. Installation of the Inner Guide Part: Align the second threaded section 701 at the bottom of the inner guide part 7 with the central installation screw hole 103 of the connecting column 101 of the chassis part 1, and manually rotate the inner guide part 7 to make a preliminary screw connection. Then, use a tool such as a wrench to tighten the inner guide part 7 until the second threaded section 701 is completely screwed into the central installation screw hole 103. Finally, install the locking nut 703 on the second threaded section 701 and tighten it downwards to fasten the connection between the inner guide part 7 and the connecting column 101 (as shown in Figure 3 , Figure 5 ).

[0048] Step 4. Installation of the Outer Sleeve Part: Pick up the outer sleeve part 2, put its barrel cavity 201 around the outer periphery of the inner guide part 7, and make the ring plate 203 at the bottom of the outer sleeve part 2 closely fit with the chassis part 1, ensuring that the vertical hole 204 on the ring plate 203 is aligned with the ring position installation screw hole 102 of the chassis part 1. Then, insert the second fixing bolt 8 through the aligned vertical hole 204 and ring position installation screw hole 102, and tighten it with a nut to firmly fix the outer sleeve part 2 on the upper side of the chassis part 1 (as shown in Figure 2 , Figure 3 , Figure 5 ).

[0049] Step 5. Pre-installation and Insertion of the Lifting Pipe Part and the Rotating Part: Align the inner circumferential threaded through hole 402 of the rotating ring 401 of the rotating part 4 with the topmost position of the thread of the first threaded section 301 of the lifting pipe part 3, and manually rotate the rotating part 4 to make a preliminary screw connection on the lifting pipe part 3 (as shown in Figure 3 , Figure 6 ).

[0050] Then, insert the first threaded section 301 of the lifting pipe part 3 into the barrel cavity 201 through the through groove 202 of the outer sleeve part 2, and at the same time ensure that the longitudinal guide rod 702 of the inner guide part 7 can be smoothly inserted into the inner cavity of the lifting pipe part 3 from the bottom opening of the lifting pipe part 3 to achieve the insertion and fitting of the two (as shown in Figure 1 , Figure 3 ).

[0051] Step 6. Installation of the die bar: Lift the die bar 5, align the insertion cavity 5031 of one of the welded steel pipes 503 on its bottom side with the top end of a lifting pipe fitting 3, and slowly lower the die bar 5 so that the top of the support section 302 of the lifting pipe fitting 3 is inserted into the insertion cavity 5031 of the welded steel pipe 503. During the insertion process, pay attention to adjusting the position so that the first insertion hole 303 at the top of the support section 302 is aligned with the second insertion hole 5032 of the welded steel pipe 503 (as shown in Figure 3 , Figure 4 ).

[0052] When the first insertion hole 303 is completely aligned with the second insertion hole 5032, insert a pin into the hole to complete the fixed connection between one welded steel pipe 503 and the lifting pipe fitting 3. In the same way, install the other welded steel pipe 503 on the bottom side of the die bar 5 and the top end of the other lifting pipe fitting 3 (as shown in Figure 4 ).

[0053] Step 7. Lifting of the die bar: The construction worker holds the rotation handle 403 of the rotating part 4 with both hands and slowly rotates the rotation handle 403. Since the rotating part 4 is screwed and matched with the first threaded section 301 of the lifting pipe fitting 3, an axial force will be generated during rotation, causing the lifting pipe fitting 3 to move upward under the guidance of the inner and outer sleeve parts 2. During the lifting process, always observe the rising height of the die bar 5 to ensure its smooth rise until it reaches the specified height position (as shown in Figure 1 , Figure 6 ).

[0054] Step 8. Installation of the overall structure: Operate according to the above steps, and sequentially install the chassis part 1, the inner guide part 7, the outer sleeve part 2, the rotating part 4, the lifting pipe fitting 3 and the die bar 5 at the remaining positions. During the installation process, pay attention to the relative position relationship between the components to ensure the structural integrity and accuracy of the entire support die (as shown in Figure 1 , Figure 3 ).

[0055] Step 9. Installation of the die combination plate: Use a herringbone frame to place it under the adjacent die bar 5 to form a stable support structure. Then, pick up the die combination plate 6 and align the bent and sunken parts 602 on both sides of it with the edge area of the adjacent die bar 5. Pass the welding screw 502 in the edge area of the die bar 5 through the lower through hole 6021 of the bent and sunken part 602, install a nut on the screw and tighten it, so as to fix the die combination plate 6 between the adjacent die bars 5 (as shown in Figure 1 , Figure 4 ). Install the remaining die combination plates 6 one by one according to this method to complete the assembly of the entire support die.

[0056] Finally, the disassembly steps: When the concrete pouring is completed and reaches a certain strength, the support mold needs to be disassembled. During disassembly, first use tools to unscrew the nuts connecting the mold combination plate 6 and the mold strip plate 5, and remove the mold combination plate 6. Then, rotate the rotating handle 403 of the rotating part 4 in the reverse direction to gradually lower the lifting pipe fitting 3 until the mold strip plate 5 returns to its initial position. Next, pull out the pin part and remove the mold strip plate 5 from the top of the lifting pipe fitting 3. After that, unscrew the second fixing bolt 8 and disassemble the outer sleeve part 2 from the chassis part 1. Finally, unscrew the locking nut 703 of the inner guide part 7 and screw out the inner guide part 7 from the connecting column body 101 of the chassis part 1 to complete the disassembly of the entire support mold. Each disassembled component should be properly stored for future use.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A support mold for concrete pouring, characterized in that: It comprises a chassis member (1), an inner guide member (7) vertically mounted at the center position of the upper side of the chassis member (1), an outer sleeve member (2) sleeved on the outer periphery of the inner guide member (7) and fixedly connected to the chassis member (1) at the bottom, a lifting pipe member (3) movably inserted into the outer sleeve member (2) and guided by the inner guide member (7), a rotating member (4) mounted above the outer sleeve member (2) and screwed to the lifting pipe member (3), a mold strip (5) positioned and mounted at the top of the lifting pipe member (3), and a plurality of mold assembly plates (6) fixedly mounted between two adjacent mold strips (5); A protruding connecting column (101) is provided at the center position of the upper side of the chassis component (1), and a center mounting screw hole (103) is provided on the connecting column (101); A second threaded section (701) is provided at the bottom of the inner guide member (7), the second threaded section (701) is threadedly mounted at the position of the central mounting screw hole (103), and the second threaded section (701) is provided with a locking nut (703); The outer sleeve member (2) is provided with a sleeve cavity (201) whose bottom side is open, and a through groove (202) communicating downward with the sleeve cavity (201) is provided at the center of the top plate of the outer sleeve member (2); The lifting pipe (3) is divided into a first threaded section (301) at the bottom and a supporting section (302) at the top. The first threaded section (301) of the lifting pipe (3) is inserted into the cylinder cavity (201) through the through groove (202). The inner guide (7) moves upward and is inserted into the lifting pipe (3). The rotating member (4) is screwed to the position of the first threaded section (301) protruding from the top plate of the outer sleeve member (2). The mold strip plate (5) comprises a frame plate (501), and welded steel pipes (503) welded to both side ends of the bottom side of the frame plate (501), and the upper side end of the support section (302) is plugged into and fixedly connected to the welded steel pipe (503); The mold assembly plate (6) comprises a main plate portion (601), and bent and sunken portions (602) located on both sides of the main plate portion (601); a bending area (603) is formed on the upper side of the bent and sunken portions (602); and an edge area of ​​the mold strip plate (5) is fixedly mounted on the bending area (603) of the bent and sunken portions (602).

2. A support mold for concrete pouring according to claim 1, characterized in that: The chassis component (1) is provided with a plurality of annular mounting screw holes (102) located around the connecting column (101); a ring plate (203) is provided on the outer ring side of the bottom of the outer sleeve component (2); the ring plate (203) is provided with vertical holes (204) matching the annular mounting screw holes (102); second fixing bolts (8) are fastened and installed at the positions of the aligned vertical holes (204) and the annular mounting screw holes (102).

3. The support mold for concrete pouring according to claim 1, characterized in that: The rotating member (4) comprises a rotating ring (401), a threaded through hole (402) located inside the rotating ring (401), and a plurality of rotating handles (403) located outside the rotating ring (401); the rotating ring (401) is threadedly engaged with the first threaded section (301) via the threaded through hole (402); The through-groove (202) is a circular open groove (202), and the diameter of the rotating ring (401) is larger than the diameter of the through-groove (202).

4. The support mold for concrete pouring according to claim 1, characterized in that: The inner guide member (7) comprises a longitudinal guide rod (702) located on the upper side of the second threaded section (701), and the longitudinal guide rod (702) is movably inserted into the inner cavity of the lifting tube member (3) through the bottom opening of the lifting tube member (3).

5. The support mold for concrete pouring according to claim 1, characterized in that: The welded steel pipe (503) comprises an insertion cavity (5031) with an opening facing downward, and the top of the support section (302) is inserted into the insertion cavity (5031); The top of the support section (302) is provided with a first insertion hole (303) which horizontally penetrates the support section (302), and the welded steel pipe (503) is provided with a second insertion hole (5032) which horizontally penetrates the welded steel pipe (503), and the first insertion hole (303) and the second insertion hole (5032) are aligned and matched and a latch is installed.

6. The support mold for concrete pouring according to claim 1, characterized in that: The vertical dimension of the bending area (603) of the bent sinking portion (602) is the same as the thickness dimension of the mold strip (5).

7. A support mold for concrete pouring and a construction method according to claim 1, characterized in that: A plurality of welding screws (502) are welded to the bottom side of the skeleton plate (501); the bent downward portion (602) is provided with a lower through hole (6021) matching with the welding screw (502); the welding screw (502) passes downward through the lower through hole (6021) and is installed with a nut.

8. A construction method for a support mold for concrete pouring, characterized in that: A support mold for concrete pouring according to any one of claims 1 to 7, comprising the following contents: S1. Place two chassis parts (1) according to the construction position and the length of the mold strip (5); S2. Vertically install the inner guide member (7) on the upper side of the chassis member (1) and lock the inner guide member (7) with a locking nut (703); S3. The outer sleeve member (2) is sleeved on the outer periphery of the inner guide member (7), and the bottom side of the outer sleeve member (2) is fixedly mounted on the upper side of the chassis member (1); S4. Pre-threading the rotating member (4) to the topmost position of the thread of the first threaded section (301) of the lifting pipe member (3), inserting the lifting pipe member (3) from the through groove (202) of the outer sleeve member (2) and engaging with the inner guide member (7); S5. Align one of the welded steel pipes (503) on the bottom side of the mold strip (5) with the top of a lifting pipe (3), and align another welded steel pipe (503) on the bottom side of the mold strip (5) with the top of another lifting pipe (3); S6. Rotate the rotating member (4) to gradually raise the mold strip (5) to a specified height position; S7. According to steps S1 to S6, install the chassis parts (1), inner guide parts (7), outer sleeve parts (2), rotating parts (4), lifting pipe parts (3), and mold strips (5) at the remaining positions; S8. Using a herringbone frame, install the mold assembly plates (6) one by one from below the adjacent mold strips (5); S9. During disassembly, the bracket mold is disassembled in the reverse order of assembly.

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