Lightweight all-aluminum prefabricated formwork structure and modular construction method thereof

Abstract

The application relates to a light-weight full-aluminum prefabricated formwork structure and a modular construction method thereof. The light-weight full-aluminum prefabricated formwork structure comprises an inner formwork and an outer formwork formed by sequentially splicing a plurality of formworks and an inclined support bracket arranged on one side of the formwork. The inner formwork and the outer formwork are arranged at intervals, and a pouring cavity is formed between the inner formwork and the outer formwork. A connecting rod is slidably connected to one side of the formwork, and a plurality of connecting rods are arranged. The connecting rod is arranged in an inclined manner. A plurality of connecting blocks corresponding to the plurality of connecting rods are fixed to the side of the formwork away from the connecting rod. The connecting rod can be inserted into the corresponding connecting block of the adjacent formwork. A tension quick-connection mechanism is arranged on the formwork, used for driving the connecting rod to be inserted and fixed into the corresponding connecting block of the adjacent formwork, and simultaneously exerting a tensioning pulling force on the splicing position of the two adjacent formworks. The application has the effects of improving the dismounting speed of the adjacent formworks, shortening the construction period and improving the stability of the splicing position of the adjacent formworks.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a lightweight all-aluminum prefabricated formwork structure and its modular construction method. Background Technology

[0002] Precast formwork structures have a wide range of applications in the construction engineering field, especially in projects that require high precision, rapid construction, and reusable formwork, such as prefabricated buildings, bridges, dams, and hydropower stations. The use of precast formwork construction has advantages such as shortening the construction cycle, reducing construction risks, improving construction quality, and reducing construction costs.

[0003] Currently, precast formwork structures mainly consist of an outer formwork and an inner formwork, formed by sequentially assembling multiple formwork panels, as well as diagonal bracing supports for supporting the formwork. The inner and outer formwork are key components of the building's frame walls. The inner and outer formwork are spaced apart, and after precise assembly, they form a continuous, enclosed space. Following this, the inner and outer formwork are fixed and positioned using diagonal bracing supports to ensure that the formwork does not easily shift or deform during concrete pouring. After the space between the inner and outer formwork is prepared, concrete pouring begins. The concrete pouring needs to be carried out in a specific order and at a certain speed to avoid excessive pressure on the formwork structure and to ensure the concrete's... Density and uniformity; after the concrete is poured, it needs to be cured to ensure that the concrete reaches sufficient strength before the formwork can be removed. The formwork removal sequence is usually the reverse of the installation sequence, removing the outer formwork first and then the inner formwork to avoid damage to the concrete structure. After cleaning and inspection, the removed formwork can be used for the next construction project. However, when splicing the outer and inner forms using formwork, a large number of bolts are required between adjacent formwork. This is not only cumbersome to disassemble and assemble, requiring a lot of labor and time, resulting in low overall construction efficiency, but also susceptible to the risk of local bolt loosening and falling off due to vibration or uneven tightening. Summary of the Invention

[0004] To improve the speed of disassembly and assembly of adjacent formwork, shorten the construction cycle, and enhance the stability of the connection between adjacent formwork, this application provides a lightweight all-aluminum prefabricated formwork structure and its modular construction method.

[0005] This application provides a lightweight all-aluminum prefabricated formwork structure and its modular construction method, which adopts the following technical solution:

[0006] In a first aspect, a lightweight all-aluminum prefabricated template structure includes an inner mold and an outer mold formed by sequentially splicing multiple templates, and a diagonal bracing bracket disposed on one side of the template. The inner mold and the outer mold are spaced apart, and a casting chamber is formed between the inner mold and the outer mold.

[0007] A connecting rod is slidably connected to one side of the template, and multiple connecting rods are provided. The connecting rods are inclined. Multiple connecting blocks are fixed on the side of the template away from the connecting rods, each corresponding to one of the connecting rods. The connecting rods can be inserted into the corresponding connecting blocks on adjacent templates.

[0008] The tensioning quick-connect mechanism is installed on the template and is used to drive the connecting rod to be inserted and fixed into the corresponding connecting block on the adjacent template, while applying tension force to the splice of the two adjacent templates.

[0009] By adopting the above technical solution, during construction, adjacent formwork is first aligned and arranged sequentially according to design requirements. Then, the inner and outer formwork are spaced apart according to design requirements. Subsequently, a quick-connect tensioning mechanism between adjacent formwork sections drives connecting rods to be inserted and fixed into connecting blocks. Simultaneously, tension is applied to the joint of the two adjacent formwork sections to ensure a tight connection between them. After the formwork is assembled, a closed pouring chamber is formed. Concrete is then poured according to construction specifications, ensuring the density and uniformity of the concrete during pouring. Once the concrete reaches its design strength, curing is performed. After the concrete wall panel reaches sufficient strength, the formwork can be removed, first the outer formwork, then the inner formwork, to avoid damage to the concrete structure. This process utilizes connecting rods and quick-connect tensioning mechanisms to ensure a tight connection between the formwork sections. The use of connecting mechanisms and other components eliminates the need to install and remove numerous bolts during the installation and dismantling of the inner and outer molds, simplifying the splicing and dismantling process, significantly reducing splicing time, and increasing construction speed. Furthermore, the tensioning quick-connect mechanism applies tension to the joints, preventing displacement or deformation during concrete pouring and thus improving structural sealing. This ensures accurate structural dimensions and a smooth surface after concrete pouring, reducing subsequent finishing work and enhancing the overall quality of the construction project. Simultaneously, the inclined connecting rods disperse the horizontal tension between two adjacent molds in other directions, enhancing the mold's compressive strength during concrete pouring and further reducing the likelihood of gaps forming between adjacent molds under the immense pressure of poured concrete.

[0010] Optionally, the tensioning quick-connect mechanism includes:

[0011] A drive assembly, located between multiple connecting rods, is used to drive the multiple connecting rods to move synchronously, while simultaneously locking the position of the connecting rods after they have moved.

[0012] The tensioning component is located between the connecting rod and the template, and is used to apply a certain tension force between two adjacent templates through the connecting rod.

[0013] A fixing component is installed between the connecting rod and the connecting block to connect and fix the connecting rod and the connecting block.

[0014] By adopting the above technical solution, during the template splicing process, the drive component is first activated, which synchronously drives all connecting rods to move. Then, the connecting rods begin to move towards the connecting block on the side of the adjacent template. At this time, the tensioning component starts to work. As the connecting rods gradually move into the connecting block, the tension force applied by the connecting rods to the two adjacent templates gradually increases until they are completely inserted into the connecting block. Through the coordinated use of the drive component, tensioning component, and fixing component, the connecting rods are tightly connected between the two adjacent templates, continuously applying tension force to the template splicing point. This makes it difficult for the templates to shift or deform during concrete pouring, ensuring accurate structural dimensions and a smooth surface after concrete pouring, reducing subsequent finishing work, and improving the overall quality of the construction project.

[0015] Optionally, the driving component includes:

[0016] The drive rack is fixed in the middle of the connecting rod;

[0017] A rotating shaft is rotatably connected to the template; multiple shafts are set, each corresponding to one of the multiple connecting rods.

[0018] The drive gear is fixedly sleeved on the rotating shaft, and the drive gear meshes with the corresponding drive rack;

[0019] The rotating shaft is fitted with a sprocket on its outer side, and a chain meshes with the outer sides of two adjacent sprockets; it also includes:

[0020] A one-way locking component is installed between one of the rotating shafts and the template to lock the angle after the rotating shaft has rotated.

[0021] By adopting the above technical solution, when the drive component synchronously drives multiple connecting rods to move, the construction worker first rotates one of the rotating shafts. The rotating shaft, through the linkage of the sprocket and chain, synchronously drives multiple drive gears to rotate. The drive gears can then drive the connecting rods fixedly connected to them to move towards the connecting blocks on the adjacent template. When the connecting rod moves to the point where it is fully inserted into the connecting block, the rotating shaft rotates to a predetermined angle, and the one-way locking component locks the position of the rotating shaft to prevent it from rotating in the opposite direction, ensuring the stability of the connecting rod's position during the tensioning component's force application process.

[0022] Optionally, the one-way locking component includes:

[0023] Locking sleeve, fixed to the outside of the template;

[0024] The ratchet is fixedly sleeved on the outside of the rotating shaft;

[0025] The locking shaft is rotatably connected to the locking sleeve.

[0026] The pawl is fixedly sleeved on the outside of the locking shaft and engages with the ratchet.

[0027] A torsion spring, located between the locking shaft and the locking sleeve, always applies a force to the pawl toward engagement with the ratchet.

[0028] By adopting the above technical solution, when the rotating shaft rotates to a predetermined angle, the pawl and ratchet engage, and the locking sleeve prevents the rotating shaft from rotating in the opposite direction by locking the ratchet with the pawl, thereby locking the position of the rotating shaft and ensuring the stability of the connecting rod after it is inserted into the connecting block, preventing displacement due to external forces during concrete pouring. When the formwork needs to be disassembled, the pawl and ratchet are separated by rotating the locking shaft, releasing the engagement between the pawl and ratchet, thus unlocking the rotating shaft. The one-way locking component ensures that the rotating shaft is locked at a predetermined angle by engaging the pawl and ratchet, preventing displacement of the connecting rod during concrete pouring and improving the stability and sealing of the formwork connection.

[0029] Optionally, the one-way locking component further includes:

[0030] The locking lever is slidably inserted into one end of the locking shaft along the length of the locking shaft.

[0031] The fixing frame is fixed to the template;

[0032] The locking magnet is fixedly sleeved on the locking rod and can be attracted to the fixing frame.

[0033] By adopting the above technical solution, when the construction personnel need to release the locking state of the one-way locking component on the rotating shaft, they first rotate the locking lever. The locking lever drives the locking shaft to rotate, and the locking shaft drives the pawl to move away from the ratchet, thus disengaging the ratchet from the pawl. At this time, the construction personnel pull the locking lever towards the side closer to the fixed frame. The locking lever drives the locking magnet to move and attracts the locking magnet to the fixed frame, thus keeping the ratchet from the pawl in an unlocked state for a long time. When the construction personnel need to lock the rotation angle of the rotating shaft, they only need to press the locking lever to separate the locking magnet from the fixed frame. The pawl can then rotate under the action of the torsion spring and resume its engagement with the ratchet. In this way, after the construction personnel need to release the locking state of the rotating shaft, they do not need to manually twist the locking shaft for a long time to disengage the ratchet from the pawl.

[0034] Optionally, the tensioning component includes:

[0035] Support shafts are spaced apart at one end of the connecting rod;

[0036] The tension spring is sleeved on the outside of the support shaft;

[0037] Two sliding sleeves are fitted onto the outside of the support shaft, and the two sliding sleeves are respectively located at both ends of the tension spring; two symmetrically arranged connecting rod groups are also provided between the two sliding sleeves;

[0038] Each of the connecting rod groups includes two counter-pull rods respectively hinged to two sliding sleeves, and a support seat that is simultaneously hinged to the end of the two counter-pull rods away from the sliding sleeve. The two counter-pull rods in the same connecting rod group are symmetrically arranged. In the two connecting rod groups, one support seat is fixedly connected to the template, and the other support seat is fixedly connected to the connecting rod.

[0039] By adopting the above technical solution, when the connecting rod begins to move towards and insert into the connecting block on the adjacent template, the tensioning component is activated. At this time, the movement of the connecting rod has not yet exerted a force on the tensioning component. As the connecting rod is inserted into the connecting block, the movement of the connecting rod drives the support seat fixedly connected to it to move. Then, through the tie rod in the connecting rod group, the two sliding sleeves move towards the center position of the support shaft, compressing the tension spring. At this time, the tension spring stores energy and generates a tension force on the connecting rod until the connecting rod is fully inserted and locked into the connecting block. Through the cooperation of the sliding sleeve, tie rod, support seat, etc., the tension force of the tension spring is transmitted to the connecting rod and the template, making the position of the connecting rod at the template connection stable. Thus, during the concrete pouring process, the adjacent templates are less likely to be displaced by external forces, improving the stability and sealing of the template connection until the template is disassembled, releasing the compression force of the tension spring.

[0040] Optionally, the tensioning assembly further includes:

[0041] A fixed limit block is fixed to one end of the support shaft;

[0042] The movable limit block is detachably connected to the end of the support shaft away from the fixed limit block.

[0043] By adopting the above technical solution, the setting of fixed limit block and movable limit block ensures the stability of tension spring during use, prevents tension spring from detaching from support shaft during compression or release, and improves the reliability of tension assembly; and when tension spring needs to be replaced due to long service time or damage, construction personnel can disassemble movable limit block, remove tension spring from support shaft, replace with new tension spring, and then reinstall movable limit block, thereby improving the service life of tension assembly.

[0044] Optionally, the fixing component includes:

[0045] The fixing block is slidably connected inside the template. Multiple blocks are provided and correspond one-to-one with multiple connecting rods. The connecting rods have multiple fixing slots along their length, and the fixing blocks can be inserted into the fixing slots.

[0046] A movable frame is positioned between multiple fixed blocks and is slidably connected to the template;

[0047] A fixed spring is fixed between the fixed block and the movable frame;

[0048] The handle is fixed to the movable frame, with one end penetrating through the template and located on the outside of the template. The template has a movable groove, and the handle can slide within the movable groove.

[0049] By adopting the above technical solution, after the connecting rod moves to the connecting block on the adjacent template and is inserted, the construction personnel push the moving frame with the handle, so that the moving frame drives the fixing block to slide along the template until the fixing block is inserted into the fixing groove on the connecting rod, thus fixing the connecting rod; after the fixing block is inserted into the fixing groove, the fixing spring is compressed and a pushing force is continuously applied to the fixing block, so that the fixing block is not easily affected by vibration or other external forces during the concrete pouring process and does not fall out of the fixing groove, thus improving the stability of the fixing component.

[0050] Optionally, the fixing block is inclined on the side near the connecting rod.

[0051] By adopting the above technical solution, the inclined surface reduces the direct contact area between the fixing block and the connecting rod, thereby reducing friction. Furthermore, the inclined surface of the fixing block allows the connecting rod to slide along the inclined surface during initial contact without jamming due to direct contact, making the insertion process of the connecting rod smoother.

[0052] Secondly, this application also provides a modular construction method for a lightweight all-aluminum prefabricated formwork structure, applicable to one of the aforementioned lightweight all-aluminum prefabricated formwork structures, the construction steps of which are as follows:

[0053] S1. Level the surface to be constructed to ensure flatness and mark the lines.

[0054] S2. Align and arrange adjacent templates in sequence according to design requirements, then set the inner and outer templates at intervals according to design requirements, and support the templates with diagonal bracing.

[0055] S3. The connecting rod is inserted and fixed into the connecting block by the tensioning quick-connect mechanism between two adjacent templates. At the same time, tension is applied at the splice of the two adjacent templates to ensure a tight connection between the templates.

[0056] S4. Next, pour concrete into the closed pouring chamber according to the construction specifications. During the concrete pouring process, ensure the uniformity and density of the concrete to avoid the generation of voids and cracks.

[0057] S5. After the concrete reaches the design strength, it should be cured. Once the concrete wall panel has reached sufficient strength, the formwork can be removed. Remove the outer formwork first, then the inner formwork, to avoid damaging the concrete structure.

[0058] In summary, this application includes at least one of the following beneficial technical effects:

[0059] 1. On the one hand, the use of connecting rods and tensioning quick-connect mechanisms eliminates the need to install and remove a large number of bolts during the installation and disassembly of the inner and outer molds, simplifying the splicing and disassembly process, significantly reducing the time required for splicing, and increasing construction speed. On the other hand, the tensioning quick-connect mechanism applies tension to the splicing joints of the molds, making it less prone to displacement or deformation during concrete pouring, thus improving the sealing of the structure, ensuring accurate structural dimensions and a smooth surface after concrete pouring, reducing subsequent finishing work, and improving the overall quality of the construction project. At the same time, the inclined setting of the connecting rods disperses the horizontal tension between two adjacent molds to other directions, enhancing the compressive strength of the molds during concrete pouring, further reducing the likelihood of gaps forming between two adjacent molds under the enormous pressure of poured concrete.

[0060] 2. The tensioning quick-connect mechanism uses the drive component, tensioning component, and fixing component in combination to make the connecting rod tightly connected between two adjacent templates, continuously applying tension force to the template splice, so that the template is not easy to move or deform during the concrete pouring process, ensuring accurate structural dimensions and a smooth surface after concrete pouring, reducing the later finishing work and improving the overall quality of the construction project.

[0061] 3. In the drive assembly, after the connecting rod moves to be fully inserted into the connecting block, the rotating shaft rotates to a predetermined angle, and the one-way locking component locks the position of the rotating shaft to prevent it from rotating in the opposite direction, ensuring that the position of the connecting rod is stable during the tensioning assembly's force application process;

[0062] 4. In the one-way locking component, when the construction worker needs to lock the rotation angle of the rotating shaft, they only need to press the locking rod to cause the locking rod to separate the locking magnet from the fixing frame. The pawl can then rotate under the action of the torsion spring and return to the meshing state with the ratchet. When the construction worker needs to release the locking state of the rotating shaft, there is no need to manually twist the locking shaft for a long time to disengage the ratchet from the pawl. Moreover, the one-way locking component ensures that the rotating shaft is locked at the predetermined angle, prevents the connecting rod from shifting during the concrete pouring process, and improves the stability and sealing of the formwork connection.

[0063] 5. The tensioning assembly uses a sliding sleeve, tie rod, and support seat to transfer the tension force of the tension spring to the connecting rod and the formwork. This stabilizes the position of the connecting rod at the formwork connection, preventing displacement of adjacent formwork due to external forces during concrete pouring. This improves the stability and sealing of the formwork connection until the formwork is removed, releasing the compression force of the tension spring. The fixed and movable limit blocks ensure the stability of the tension spring during use, preventing it from detaching from the support shaft during compression or release, thus improving the reliability of the tensioning assembly. When the tension spring needs replacement due to prolonged use or damage, workers can remove the movable limit block, remove the tension spring from the support shaft, replace it with a new one, and then reinstall the movable limit block, thereby extending the service life of the tensioning assembly.

[0064] 6. In the fixing assembly, after the fixing block is inserted into the fixing groove, the fixing spring is compressed and a continuous pushing force is applied to the fixing block, making the fixing block less susceptible to vibration or other external forces from dislodging from the fixing groove during concrete pouring, thus improving the stability of the fixing assembly. In addition, the inclined surface reduces the direct contact area between the fixing block and the connecting rod, reducing friction. Furthermore, the inclined surface of the fixing block allows the connecting rod to slide along the inclined surface during initial contact without jamming due to direct contact, making the insertion process of the connecting rod smoother. Attached Figure Description

[0065] Figure 1 This is a structural schematic diagram of the lightweight all-aluminum prefabricated template structure in this application;

[0066] Figure 2 This is a top view showing a lightweight all-aluminum prefabricated template structure;

[0067] Figure 3 This is a partial cross-sectional schematic diagram showing the lightweight all-aluminum prefabricated template structure;

[0068] Figure 4 It means Figure 3 A magnified schematic diagram of part A in the middle section;

[0069] Figure 5 This is a schematic diagram showing a partial structure of the driving component;

[0070] Figure 6 It means Figure 5 A partially enlarged structural diagram of section B;

[0071] Figure 7 This is a magnified schematic diagram showing the partial structure of the one-way locking component when it is unlocked.

[0072] Explanation of reference numerals in the attached drawings: 1. Template; 11. Moving groove; 2. Inner mold; 3. Outer mold; 4. Diagonal brace; 5. Casting chamber; 6. Connecting rod; 61. Fixing groove; 7. Connecting block; 8. Tensioning quick-connect mechanism; 81. Drive assembly; 811. Drive rack; 812. Rotating shaft; 813. Drive gear; 814. Sprocket; 815. Chain; 816. Handwheel; 817. One-way locking component; 8171. Locking sleeve; 8172. Ratchet; 8173. Locking shaft; 8174. 8175. Pawl; 8176. Torsion spring; 8177. Locking lever; 8178. Knob; 8179. Fixing bracket; 8170. Locking magnet; 82. Tensioning assembly; 821. Support shaft; 822. Tensioning spring; 823. Sliding sleeve; 824. Linkage assembly; 8241. Pull-off linkage; 8242. Support base; 825. Fixed limit block; 826. Movable limit block; 83. Fixing assembly; 831. Fixing block; 832. Moving frame; 833. Fixed spring; 834. Handle. Detailed Implementation

[0073] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0074] This application discloses a lightweight all-aluminum prefabricated template structure. (Refer to...) Figure 1 and Figure 2 The lightweight all-aluminum precast formwork 1 structure includes an inner mold 2 and an outer mold 3 formed by sequentially splicing multiple formworks 1, and a diagonal support 4 set on one side of the formwork 1. The inner mold 2 and the outer mold 3 are spaced apart, and a closed casting chamber 5 is formed between the inner mold 2 and the outer mold 3. The cross section of the formwork 1 can be of various specifications such as "I" shape and "L" shape.

[0075] Reference Figure 3 A plurality of inclined connecting rods 6 are slidably connected to one side of the template 1. For example, the connecting rods 6 are set at a certain angle with the horizontal direction, preferably 45°. A plurality of connecting blocks 7 are fixed on the side of the template 1 away from the connecting rods 6, each corresponding to one of the connecting rods 6. The connecting rods 6 can be inserted into the corresponding connecting blocks 7 on adjacent templates 1. A tensioning quick-connect mechanism 8 is provided on the template 1. The tensioning quick-connect mechanism 8 is used to drive the connecting rods 6 to be inserted into and fixed into the corresponding connecting blocks 7 on adjacent templates 1, and at the same time apply tension force to the joint of two adjacent templates 1.

[0076] During construction, adjacent formwork 1s are first aligned and arranged sequentially according to design requirements. Then, inner formwork 2 and outer formwork 3 are spaced apart as per design specifications. Next, the connecting rod 6 is inserted and fixed into the connecting block 7 via the tensioning quick-connect mechanism 8 between adjacent formwork 1s. Simultaneously, tension is applied to the joint of the two adjacent formwork 1s to ensure a tight connection. After the formwork 1s are assembled, a closed pouring chamber 5 is formed. Concrete is then poured according to construction specifications, ensuring the density and uniformity of the concrete during the pouring process.

[0077] After the concrete reaches its design strength, it undergoes curing. Once the concrete wall panels have reached sufficient strength, formwork 1 can be removed, first the outer formwork 3, then the inner formwork 2, to avoid damage to the concrete structure. On one hand, the use of connecting rods 6 and the quick-connect tensioning mechanism 8 eliminates the need to install and remove numerous bolts during the installation and dismantling of the inner and outer formwork 2 and 3, simplifying the splicing and dismantling process of formwork 1, significantly reducing splicing time, and increasing construction speed. On the other hand, the quick-connect tensioning mechanism 8 applies tension force to the splicing points of formwork 1, preventing displacement or deformation during concrete pouring and thus improving the structure's sealing. This ensures accurate structural dimensions and a smooth surface after concrete pouring, reducing subsequent finishing work and improving the overall quality of the construction project. Simultaneously, the inclined design of the connecting rods 6 disperses the horizontal tension between two adjacent formwork 1s to other directions, enhancing the compressive strength of formwork 1s during concrete pouring and further reducing the likelihood of gaps forming between adjacent formwork 1s under the immense pressure of poured concrete.

[0078] In some embodiments, refer to Figure 3 and Figure 4 The tensioning quick-connect mechanism 8 includes a drive assembly 81 disposed between multiple connecting rods 6. The drive assembly 81 drives the multiple connecting rods 6 to move synchronously and locks the position of the connecting rods 6 after movement. A tensioning assembly 82 is disposed between the connecting rods 6 and the template 1. The tensioning assembly 82 is used to apply a certain tension force between two adjacent templates 1 through the connecting rods 6. A fixing assembly 83 is disposed between the connecting rods 6 and the connecting block 7. The fixing assembly 83 is used to connect and fix the connecting rods 6 and the connecting block 7.

[0079] During the splicing of template 1, the drive assembly 81 is activated first, synchronously moving all connecting rods 6. Then, the connecting rods 6 begin to move towards the connecting block 7 on the side of the adjacent template 1. At this time, the tensioning assembly 82 begins to work. As the connecting rods 6 gradually move into the connecting block 7, the tension force applied between the two adjacent templates 1 gradually increases until they are fully inserted into the connecting block 7. Through the coordinated use of the drive assembly 81, tensioning assembly 82, and fixing assembly 83, the connecting rods 6 are tightly connected between the two adjacent templates 1, continuously applying tension force to the splicing point of template 1. This prevents template 1 from easily shifting or deforming during concrete pouring, ensuring accurate structural dimensions and a smooth surface after concrete pouring, reducing subsequent finishing work, and improving the overall quality of the construction project.

[0080] In some embodiments, refer to Figure 3 and Figure 5 The drive assembly 81 includes a drive rack 811 fixedly mounted in the middle of the connecting rod 6; multiple rotating shafts 812 are rotatably connected to the template 1, with each rotating shaft 812 corresponding to one of the connecting rods 6. A drive gear 813 is fixedly sleeved on the rotating shaft 812, and the drive gear 813 meshes with the corresponding drive rack 811. A sprocket 814 is fixedly sleeved on the outer side of the rotating shaft 812, and a chain 815 meshes with the outer sides of two adjacent sprockets 814. A handwheel 816 is fixedly mounted on one end of one of the rotating shafts 812, and a one-way locking component 817 is provided between the handwheel 816 and the template 1. The one-way locking component 817 is used to lock the angle of the rotating shaft 812 after rotation.

[0081] When the drive assembly 81 synchronously moves multiple connecting rods 6, the construction worker first turns the handwheel 816. The handwheel 816 drives the rotating shaft 812, which is fixedly connected to it, to rotate. The rotating shaft 812, through the linkage of the sprocket 814 and the chain 815, synchronously drives multiple drive gears 813 to rotate. The drive gears 813 then drive the connecting rods 6, which are fixedly connected to them, to move towards the connecting block 7 on the adjacent template 1. When the connecting rod 6 moves to the point where it is fully inserted into the connecting block 7, the rotating shaft 812 rotates to a predetermined angle. The one-way locking component 817 locks the position of the rotating shaft 812 to prevent it from rotating in the opposite direction, ensuring the stability of the position of the connecting rod 6 during the tensioning assembly 82's application of force.

[0082] In some embodiments, refer to Figure 6 and Figure 7The one-way locking component 817 includes a locking sleeve 8171 fixedly mounted on the outside of the template 1, with one end of the locking sleeve 8171 fixedly connected to the template 1. A ratchet 8172 is fixedly mounted on the outside of the rotating shaft 812. A locking shaft 8173 is rotatably connected to the locking sleeve 8171. A pawl 8174 is fixedly mounted on the outside of the locking shaft 8173, and the pawl 8174 engages with the ratchet 8172. A torsion spring 8175 is provided between the locking shaft 8173 and the locking sleeve 8171, and the torsion spring 8175 always provides a force to the pawl 8174 toward engaging with the ratchet 8172. A locking rod 8176 is provided at one end of the locking shaft 8173. The locking rod 8176 is slidably inserted into the locking shaft 8173 along its length. For example, the locking shaft 8173 has a spline groove along its length, and a spline is fixed on the outside of the locking rod 8176, which is slidably inserted into the spline groove. A knob 8177 is fixed at the end of the locking rod 8176 away from the locking shaft 8173. A fixing bracket 8178 is fixed on the template 1, and a locking magnet 8179 is fixedly sleeved on the locking rod 8176. The locking magnet 8179 and the fixing bracket 8178 can attract each other.

[0083] When the rotating shaft 812 rotates to a predetermined angle, the pawl 8174 engages with the ratchet 8172, and the locking sleeve 8171 prevents the rotating shaft 812 from rotating in the opposite direction by locking the ratchet 8172 with the pawl 8174, thereby locking the position of the rotating shaft 812 and ensuring that the position of the connecting rod 6 is stable after it is inserted into the connecting block 7, preventing displacement due to external forces during the concrete pouring process. When the template 1 needs to be disassembled, and the construction personnel need to release the locking state of the one-way locking component 817 on the rotating shaft 812, first turn the knob 8177. The knob 8177 drives the locking rod 8176 to rotate, the locking rod 8176 drives the locking shaft 8173 to rotate, and the locking shaft 8173 drives the pawl 8174 to move away from the ratchet 8172, so that the ratchet 8172 and the pawl 8174 are disengaged. At this time, the construction personnel pull the locking rod 8176 towards the side closer to the fixed frame 8178. The locking rod 8176 drives the locking magnet 8179 to move and causes the locking magnet 8179 to be attracted to the fixed frame 8178. This allows the ratchet 8172 and the pawl 8174 to remain in the unlocked state for a long time, thereby releasing the lock on the rotating shaft 812.

[0084] When construction workers need to lock the rotation angle of the rotating shaft 812, they only need to press the knob 8177 to cause the locking rod 8176 to drive the locking magnet 8179 to separate from the fixing frame 8178. The pawl 8174 can then rotate under the action of the torsion spring 8175 and return to the meshing state with the ratchet 8172. When construction workers need to release the locking state of the rotating shaft 812, they do not need to manually twist the locking shaft 8173 for an extended period of time to disengage the ratchet 8172 from the pawl 8174. Furthermore, the one-way locking component 817, through the meshing of the pawl 8174 and the ratchet 8172, ensures that the rotating shaft 812 is locked at a predetermined angle, preventing displacement of the connecting rod 6 during concrete pouring and improving the stability and sealing of the formwork 1 connection.

[0085] In some embodiments, refer to Figure 3 The tensioning assembly 82 includes a support shaft 821 spaced apart at one end of the connecting rod 6, and a tension spring 822 sleeved on the outside of the support shaft 821. Two sliding sleeves 823 are sleeved on the outside of the support shaft 821, and the two sliding sleeves 823 respectively abut against the two ends of the tension spring 822. Two symmetrically arranged connecting rod groups 824 are also provided between the two sliding sleeves 823; each connecting rod group 824 includes two pull rods 8241 respectively hinged to the two sliding sleeves 823, and a support seat 8242 hinged to the end of the two pull rods 8241 away from the sliding sleeves 823. The two pull rods 8241 in the same connecting rod group 6 are symmetrically arranged. One support seat 8242 of the two connecting rod groups 824 is fixedly connected to the template 1, and the other support seat 8242 is fixedly connected to the connecting rod 6. One end of the support shaft 821 is fixedly provided with a fixed limiting block 825, and the other end of the support shaft 821 away from the fixed limiting block 825 is detachably connected to a movable limiting block 826 by a thread. The fixed limiting block 825 and the movable limiting block 826 are provided to improve the stability of the tension spring 822 during use, prevent the tension spring 822 from detaching from the support shaft 821 during compression or release, and improve the reliability of the tensioning assembly 82.

[0086] When the connecting rod 6 begins to move and engage with the connecting block 7 on the adjacent template 1, the tensioning assembly 82 is activated. At this time, the movement of the connecting rod 6 has not yet exerted a force on the tensioning assembly 82. As the connecting rod 6 is engaged with the connecting block 7, its movement drives the support base 8242, which is fixedly connected to it, to move. This, in turn, through the pull rod 8241 in the linkage group 824, causes the two sliding sleeves 823 to move towards the center position of the support shaft 821, compressing the tension spring 822. At this time, the tension spring 822 stores energy and generates a tension force on the connecting rod 6 until the connecting rod 6 is fully engaged and locked into the connecting block 7.

[0087] When the tension spring 822 needs to be replaced due to prolonged use or damage, construction personnel can rotate and disassemble the movable limit block 826 to remove the tension spring 822 from the support shaft 821, replace it with a new tension spring 822, and then reinstall the movable limit block 826, thereby improving the service life of the tensioning assembly 82. The tension spring 822 is transmitted to the connecting rod 6 and the template 1 through the coordinated use of the sliding sleeve 823, the tie rod 8241, and the support seat 8242. This stabilizes the position of the connecting rod 6 at the connection point of the template 1, preventing displacement of adjacent templates 1 due to external forces during concrete pouring, thus improving the stability and sealing of the template 1 connection until the template 1 is disassembled, releasing the compressive force of the tension spring 822.

[0088] In some embodiments, refer to Figures 3-5 The fixing component 83 includes multiple fixing blocks 831 slidably connected within the template 1. Each fixing block 831 corresponds one-to-one with a multiple connecting rod 6. Each connecting rod 6 has multiple fixing slots 61 along its length, into which the fixing blocks 831 can be inserted. The fixing blocks 831 are angled on the side closest to the connecting rod 6. A movable frame 832 is provided between the fixing blocks 831, slidably connected to the template 1. A fixing spring 833 is fixed between each fixing block 831 and the movable frame 832. A handle 834 is fixed to the movable frame 832, one end of which penetrates the template 1 and is located on the outside of the template 1. An inclined movable slot 11 is provided on the template 1, allowing the handle 834 to slide within the movable slot 11.

[0089] When the connecting rod 6 moves towards and is inserted into the connecting block 7 on the adjacent template 1, the inclined surface of the fixing block 831 allows the connecting rod 6 to slide along the inclined surface during initial contact without jamming due to direct contact. Once the connecting rod 6 is fully inserted into the connecting block 7, the fixing block 831 is inserted into the fixing groove 61 on the connecting rod 6, thus fixing the connecting rod 6. When it is necessary to release the fixing component 83 from the connecting rod 6, the construction worker first pushes the moving frame 832 upwards using the handle 834. The moving frame 832 then drives the fixing block 831 to slide upwards along the template 1, disengaging the fixing block 831 from the fixing groove 61. The inclined surface of the fixing block 831 reduces the direct contact area between the fixing block 831 and the connecting rod 6, lowering friction and making the insertion process of the connecting rod 6 smoother. Meanwhile, after the fixing block 831 is inserted into the fixing groove 61, the fixing spring 833 is compressed and continuously applies a pushing force to the fixing block 831, so that the fixing block 831 is not easily dislodged from the fixing groove 61 by vibration or other external forces during the concrete pouring process, thereby improving the stability of the fixing component 83.

[0090] This application also discloses a modular construction method for a lightweight all-aluminum prefabricated formwork structure, applicable to one of the aforementioned lightweight all-aluminum prefabricated formwork structures, the construction steps of which are as follows:

[0091] S1. Level the surface to be constructed to ensure flatness and mark the lines.

[0092] S2. Align and arrange adjacent templates 1 in sequence according to the design requirements. Then, set the inner template 2 and outer template 3 at intervals according to the design requirements, and support the template 1 with the diagonal brace 4.

[0093] S3. The connecting rod 6 is inserted and fixed into the connecting block 7 by the tensioning quick-connect mechanism 8 between two adjacent templates 1, and at the same time, tension is applied to the splice of the two adjacent templates 1 to ensure that the templates 1 are tightly connected.

[0094] S4. Next, pour concrete into the closed pouring chamber 5 according to the construction specifications. First, pour the shear walls, columns, and beams, and then pour the horizontal floor slabs. Pour in multiple times continuously. During the concrete pouring process, ensure the uniformity and density of the concrete to avoid the generation of voids and cracks.

[0095] S5. After the concrete reaches the design strength, it should be cured. Once the concrete wall panel has reached sufficient strength, the formwork 1 can be removed. First, remove the outer formwork 3, and then remove the inner formwork 2, in order to avoid damage to the concrete structure.

[0096] The implementation principle of a lightweight all-aluminum prefabricated formwork structure and its modular construction method in this application embodiment is as follows: During construction, adjacent formwork 1s are first aligned and arranged sequentially according to design requirements. Then, inner formwork 2 and outer formwork 3 are spaced apart according to design requirements. Subsequently, the connecting rod 6 is inserted and fixed into the connecting block 7 via the tensioning quick-connect mechanism 8 between two adjacent formwork 1s. Simultaneously, tension is applied to the joint of the two adjacent formwork 1s to ensure a tight connection between them. After the formwork 1s are assembled, a closed pouring chamber 5 is formed. Concrete is then poured according to construction specifications, ensuring the density and uniformity of the concrete during pouring. After the concrete reaches its design strength, curing is performed. Once the concrete wall panel reaches sufficient strength, the formwork 1s can be removed, first the outer formwork 3, then the inner formwork 2, to avoid damage to the concrete structure. On the one hand, the use of connecting rod 6 and tensioning quick-connect mechanism 8 eliminates the need to install and remove a large number of bolts during the entire installation and disassembly process of inner mold 2 and outer mold 3, simplifying the splicing and disassembly process of template 1, significantly reducing the splicing time of template 1, and improving construction speed. On the other hand, tensioning quick-connect mechanism 8 applies tension force to the splice of template 1, making it less prone to displacement or deformation and other defects that may cause gaps during concrete pouring, improving the sealing of the structure, ensuring accurate structural dimensions and a smooth surface after concrete pouring, reducing subsequent finishing work, and improving the overall quality of the construction project. At the same time, the inclined setting of connecting rod 6 disperses the horizontal tension between two adjacent templates 1 to other directions, enhancing the compressive strength of template 1 during concrete pouring, and further making it less likely for gaps to form between two adjacent templates 1 under the huge pressure of poured concrete.

[0097] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lightweight all-aluminum prefabricated template structure, characterized in that, It includes an inner mold (2) and an outer mold (3) formed by sequentially splicing multiple templates (1), and a diagonal support (4) set on one side of the template (1). The inner mold (2) and the outer mold (3) are spaced apart, and a casting chamber (5) is formed between the inner mold (2) and the outer mold (3). A connecting rod (6) is slidably connected to one side of the template (1), and multiple connecting rods (6) are provided. The connecting rods (6) are inclined. Multiple connecting blocks (7) are fixed on the side of the template (1) away from the connecting rods (6) and are corresponding to the multiple connecting rods (6). The connecting rods (6) can be inserted into the corresponding connecting blocks (7) on the adjacent template (1). The tensioning quick-connect mechanism (8) is set on the template (1) to drive the connecting rod (6) to be inserted and fixed into the corresponding connecting block (7) on the adjacent template (1), and at the same time apply tensioning force to the splice of the two adjacent templates (1); The tensioning quick-connect mechanism (8) includes: A drive assembly (81) is disposed between multiple connecting rods (6) to drive multiple connecting rods (6) to move synchronously and lock the position of the connecting rods (6) after they have moved. The tensioning component (82) is located between the connecting rod (6) and the template (1) and is used to apply a certain tension force between two adjacent templates (1) through the connecting rod (6); A fixing component (83) is disposed between the connecting rod (6) and the connecting block (7) for connecting and fixing the connecting rod (6) and the connecting block (7).

2. The lightweight all-aluminum prefabricated template structure according to claim 1, characterized in that, The driving component (81) includes: The drive rack (811) is fixed in the middle part of the connecting rod (6); Rotary shaft (812) is rotatably connected to template (1), and multiple shafts are set and correspond one-to-one with multiple connecting rods (6); The drive gear (813) is fixedly sleeved on the rotating shaft (812), and the drive gear (813) meshes with the corresponding drive rack (811); The rotating shaft (812) is fitted with a sprocket (814) on its outer side, and a chain (815) meshes with the outer sides of two adjacent sprockets (814); It also includes: A one-way locking component (817) is disposed between one of the rotating shafts (812) and the template (1) for locking the angle after the rotating shaft (812) is rotated.

3. The lightweight all-aluminum prefabricated template structure according to claim 2, characterized in that, The one-way locking component (817) includes: Locking sleeve (8171) is fixed to the outside of template (1); The ratchet (8172) is fixedly sleeved on the outside of the rotating shaft (812); The locking shaft (8173) is rotatably connected to the locking sleeve (8171); The pawl (8174) is fixedly sleeved on the outside of the locking shaft (8173) and engages with the ratchet (8172); A torsion spring (8175) is disposed between the locking shaft (8173) and the locking sleeve (8171), the torsion spring (8175) always applies a force to the pawl (8174) toward engagement with the ratchet (8172).

4. A lightweight all-aluminum prefabricated template structure according to claim 3, characterized in that, The one-way locking component (817) further includes: The locking lever (8176) is slidably inserted into one end of the locking shaft (8173) along the length direction of the locking shaft (8173); A fixing frame (8178) is fixed to the template (1); The locking magnet (8179) is fixedly sleeved on the locking rod (8176) and can be attracted to the fixing bracket (8178).

5. A lightweight all-aluminum prefabricated template structure according to claim 1, characterized in that, The tensioning assembly (82) includes: Support shafts (821) are spaced apart at one end of the connecting rod (6); The tension spring (822) is sleeved on the outside of the support shaft (821); Two sliding sleeves (823) are sleeved on the outside of the support shaft (821), and the two sliding sleeves (823) are respectively located at both ends of the tension spring (822); two symmetrically arranged connecting rod groups (824) are also provided between the two sliding sleeves (823); Each of the connecting rod groups (824) includes two pull rods (8241) respectively hinged to two sliding sleeves (823), and a support seat (8242) simultaneously hinged to the end of the two pull rods (8241) away from the sliding sleeves (823). The two pull rods (8241) in the same connecting rod (6) group are symmetrically arranged. One of the support seats (8242) in the two connecting rod groups (824) is fixedly connected to the template (1), and the other support seat (8242) is fixedly connected to the connecting rod (6).

6. A lightweight all-aluminum prefabricated template structure according to claim 5, characterized in that, The tensioning assembly (82) further includes: A fixed limiting block (825) is fixed to one end of the support shaft (821); The movable limiting block (826) is detachably connected to the end of the support shaft (821) away from the fixed limiting block (825).

7. A lightweight all-aluminum prefabricated template structure according to claim 1, characterized in that, The fixing component (83) includes: The fixing block (831) is slidably connected in the template (1). Multiple blocks are set and correspond one-to-one with multiple connecting rods (6). Multiple fixing slots (61) are opened along the length direction of the connecting rod (6). The fixing block (831) can be inserted into the fixing slot (61). A movable frame (832) is disposed between multiple fixed blocks (831) and is slidably connected to the template (1); A fixed spring (833) is fixed between the fixed block (831) and the movable frame (832); The handle (834) is fixed to the movable frame (832), and one end passes through the template (1) and is located outside the template (1). The template (1) has a movable groove (11), and the handle (834) can slide in the movable groove (11).

8. A lightweight all-aluminum prefabricated template structure according to claim 7, characterized in that, The fixing block (831) is set at an angle on the side near the connecting rod (6).

9. A modular construction method for a lightweight all-aluminum prefabricated formwork structure, characterized in that, The construction steps for a lightweight all-aluminum prefabricated formwork structure applicable to any one of claims 1-8 are as follows: S1. Level the surface to be constructed to ensure flatness and mark the lines. S2. Align and arrange adjacent templates (1) in sequence according to the design requirements. Then, set the inner template (2) and outer template (3) at intervals according to the design requirements, and support the template (1) with the diagonal brace (4). S3. The connecting rod (6) is inserted and fixed into the connecting block (7) by the tensioning quick-connect mechanism (8) between two adjacent templates (1), and a tensioning force is applied to the splice of the two adjacent templates (1) to ensure that the templates (1) are tightly connected. S4. Next, pour concrete into the closed pouring chamber (5) according to the construction specifications. During the concrete pouring process, ensure the uniformity and density of the concrete to avoid the generation of voids and cracks. S5. After the concrete reaches the design strength, it is cured. After the concrete wall panel reaches sufficient strength, the formwork can be removed (1). First, the outer formwork (3) is removed, and then the inner formwork (2) is removed to avoid damage to the concrete structure.

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