A lifting and pressing formwork system for concrete reinforcement

Abstract

The utility model discloses a kind of lifting and pressing formwork systems for concrete reinforcement, including lifting device, bottom formwork and side formwork, bottom formwork is located on lifting device, side formwork is sleeved on bottom formwork, and can be relative bottom formwork lifting movement, the inside surface of side formwork and the top surface of bottom formwork form pouring space for pouring reinforcing material and top open, and height limiting mechanism for limiting the lifting height of side formwork relative bottom formwork is equipped between bottom formwork and side formwork, and the top of side formwork is equipped with elastic ring.The lifting and pressing formwork system for concrete reinforcement has the advantages of improving reinforcing material rising reinforcement height, reinforcement effect and adaptability, and improving the service life of elastic ring.

Description

Technical Field

[0001] This utility model relates to the field of concrete structure reinforcement technology, specifically to a lifting and pressing formwork system for concrete reinforcement. Background Technology

[0002] Reinforcement of concrete structures is an engineering need arising from changes in the function of buildings / bridges (such as extensions, increased loads) or quality problems (such as insufficient reinforcement, post-disaster damage, insufficient strength). As existing buildings / bridges age, standards are upgraded, and usage requirements change, reinforcement projects must ensure safety while also taking into account economy, efficiency, and ease of construction.

[0003] Traditional reinforcement methods mainly include enlarging the cross section, external steel wrapping, and prestressed reinforcement. These methods are technically mature but have inherent limitations. (1) Enlarging the cross section: This method increases the strength by increasing the cross section of the component and the reinforcement, but it requires a large number of temporary supports, has a long construction period, high labor intensity, and occupies a large space. (2) External steel wrapping: This method relies on steel to increase stiffness, is susceptible to corrosion, and has a large self-weight, which increases the structural load. (3) Changing the force transmission path: This method achieves reinforcement by adjusting the stress mode of the structure, but it causes a large disturbance to the original structure and has limited applicability.

[0004] Chinese patent application number 202210899948.X discloses a rapid overall reinforcement method for slab concrete bridges, comprising: determining the reinforcement area of ​​the slab concrete bridge, pre-treating the reinforcement surface, and assembling the reinforcement system; injecting reinforcement material into the reinforcement template system, closing traffic under the bridge, and moving a self-propelled modular transport vehicle to the underside of the slab concrete bridge; activating the hydraulic jacking system to lift the reinforcement template system upwards, observing the uniformity of the reinforcement material being squeezed out, continuing to lift the reinforcement template system to ensure that the reinforcement material is in close contact with the reinforcement surface of the slab concrete bridge; locking the hydraulic jacking system until the cement-based reinforcement layer reaches its design strength, detaching the reinforcement template system from the cement-based reinforcement layer, and finally driving away the self-propelled modular transport vehicle. The reinforcement template system includes a channel steel template, a rubber pad, and a hydraulic jacking system. The channel steel template is mounted on the hydraulic jacking system, and the rubber pad is positioned at the top edge of the channel steel template, with several openings on the upper edge of the rubber pad. The reinforcement formwork system has the following shortcomings: 1) The channel steel formwork is a fixed, integrated structure. The jacking of the channel steel formwork allows the rubber pad layer to contact the reinforced surface, ensuring a tight fit between the internal reinforcing material and the reinforced area. However, this requires the rubber pad layer to compress and deform to achieve this tight fit. The limited compression deformation of the rubber pad layer restricts the height to which the reinforcing material can rise, making it difficult to meet the reinforcement requirements of surfaces with deep grooves. This can easily lead to gaps between the reinforcing material and the surface, resulting in poor reinforcement effectiveness and adaptability. Secondly, the entire channel steel formwork needs to be lowered for demolding, which can easily damage the cement-based reinforcement layer. 2) Several openings are provided on the upper edge of the rubber pad for venting, but the reinforcing material will also be discharged, resulting in the reinforcing material not adhering tightly to the reinforcing surface of the reinforced area, thus resulting in poor reinforcement effect; 3) The rubber pad layer has no side support on the outside. During the jacking process, it needs to be subjected to the reinforcing extrusion force and the outward pushing force of the reinforcing material. It is easy for the whole to shift and deform outward, resulting in a short service life. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a concrete reinforcement lifting and pressing formwork system and its construction method that improves the lifting and reinforcement height, reinforcement effect and adaptability of the reinforcing material, and improves the service life of the elastic ring.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A concrete reinforcement lifting and pressing formwork system includes a lifting device, a bottom formwork, and side formwork. The bottom formwork is mounted on the lifting device, and the side formwork is fitted onto the bottom formwork and can move up and down relative to the bottom formwork. A pouring space with an open top is formed between the inner side surface of the side formwork and the top surface of the bottom formwork for pouring reinforcement material. An elastic mechanism for supporting or pulling up the side formwork and a height limiting mechanism for limiting the height of the side formwork relative to the bottom formwork are provided between the bottom formwork and the side formwork. An elastic ring is provided at the top of the side formwork.

[0007] As a further improvement to the above technical solution: The elastic mechanism includes multiple elastic components respectively disposed on opposite sides of the bottom template, and the side template is supported on each elastic component.

[0008] The height limiting mechanism includes multiple limiting blocks respectively disposed on opposite sides of the bottom template. The side template slides in conjunction with the limiting blocks. The limiting blocks are provided with upper limit parts and lower limit parts arranged at intervals. The side template is provided with a restricted part, which is located between the upper limit part and the lower limit part.

[0009] The limiting block is provided with vertical grooves, and each side template is provided with a sliding component at a position corresponding to each vertical groove. The sliding component slides in cooperation with the corresponding vertical groove. The upper limit part is located on the top wall of the vertical groove, the lower limit part is located on the bottom wall of the vertical groove, and the limiting part is located on the sliding component.

[0010] A horizontal block is fixed at the bottom of the limiting block, and the horizontal block is fixedly connected to the bottom template. Each of the elastic components is placed on the horizontal block.

[0011] When the restricted part abuts against the upper limit part, a demolding gap is formed between the bottom surface of the side template and the top surface of the bottom template.

[0012] The side template is fitted with an outer support member that is raised and lowered outside the elastic ring. An elastic component is provided between the outer support member and the side template. The elastic ring can block the reinforcing material and allow air to pass through.

[0013] The lifting device includes a bracket and a pad on the bracket. The bottom template is placed on the pad. At least one row of screws for fixing to the concrete structure is provided on each side of the bracket.

[0014] The bracket has a through hole, the screw passes through the through hole, and nuts are provided on both the top and bottom of the bracket.

[0015] A concrete reinforcement construction method, using the aforementioned concrete reinforcement lifting and pressing formwork system, includes the following steps: S1. Fix the lifting device to the concrete structure and position it below the area to be reinforced on the bottom surface of the concrete structure; S2. Pour reinforcing material into the pouring space so that the top surface of the reinforcing material is flush with or close to the top surface of the elastic ring. S3. The lifting device lifts the bottom formwork so that the elastic ring comes into contact with the concrete structure; S4. The lifting device continues to lift the bottom formwork, causing the bottom formwork to rise relative to the side formwork, so that the reinforcing material is pressed against the concrete structure and the reinforcing material fills the groove at the area to be reinforced; at the same time, the bottom formwork lifts the side formwork through the elastic mechanism, so that the elastic ring is pressed against the concrete structure. S5. After the reinforcing material reaches the solidification requirement, the lifting device lowers the bottom template to separate the bottom template from the reinforcing material. S6. The lifting device drives the bottom formwork to continue to descend until the height limiting mechanism pulls down the side formwork, causing the side formwork to separate from the reinforcing material.

[0016] Compared with the prior art, the advantages of this utility model are: This utility model discloses a lifting and pressing formwork system for concrete reinforcement. Firstly, because the bottom and side formwork can move relative to each other in a coordinated manner, the bottom formwork can rise relative to the side formwork to press the reinforcing material against the concrete structure. Compared to existing technologies that rely on the compression deformation of rubber pads to achieve a tight bond between the reinforcing material and the concrete structure, this system increases the lifting and reinforcement height of the reinforcing material. This meets the reinforcement requirements for surfaces with deep grooves and reduces the likelihood of gaps arising from insufficient adhesion between the reinforcing material and the reinforced surface. This improves both the reinforcement effect and adaptability. Secondly, it allows for demolding of the bottom formwork first, followed by the side formwork, with a relative overall descent for demolding. This minimizes damage to the reinforced structure formed by the reinforcing material. Third, because an elastic mechanism is provided between the side formwork and the bottom formwork, the bottom formwork lifts the side formwork through the elastic mechanism, so that during the compression process of the elastic ring with the concrete structure, the deformation of the elastic mechanism can reduce the deformation of the elastic ring, which is beneficial to protect the elastic ring and improve its service life. Furthermore, the combination of the elastic mechanism, the deformation of the elastic ring, and the rise of the bottom formwork relative to the side formwork further increases the rise and reinforcement height of the reinforcement material, thereby further improving the reinforcement effect and adaptability. Fourth, the bottom formwork and the side formwork are connected by a height limiting mechanism, which on the one hand prevents the bottom formwork and the side formwork from separating, and on the other hand limits the relative distance between the bottom formwork and the side formwork, which is beneficial to ensuring the thickness of the reinforcement material. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of the concrete reinforcement lifting and pressing formwork system of this utility model.

[0018] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0019] Figure 3 This is a half-sectional structural diagram of Embodiment 1 of the concrete reinforcement lifting and pressing formwork system of this utility model (the elastic component is not compressed and the lifting device is not shown).

[0020] Figure 4 yes Figure 3 A magnified structural diagram at point B in the middle.

[0021] Figure 5 This is a half-sectional structural diagram of Embodiment 1 of the concrete reinforcement lifting and pressing formwork system of this utility model (the elastic component is under compression and the lifting device is not shown).

[0022] Figure 6 This is a half-sectional structural diagram of Embodiment 2 of the concrete reinforcement lifting and pressing formwork system of this utility model (the elastic component is not compressed and the lifting device is not shown).

[0023] Figure 7This is a half-section structural diagram of Embodiment 3 of the concrete reinforcement lifting and pressing formwork system of this utility model (lifting device not shown).

[0024] Figure 8 yes Figure 7 A magnified structural diagram at point C.

[0025] Figure 9 This is a partial three-dimensional structural schematic diagram of Embodiment 3 of the concrete reinforcement lifting and pressing formwork system of this utility model.

[0026] Figure 10 This is a partial three-dimensional structural schematic diagram of Embodiment 4 of the concrete reinforcement lifting and pressing formwork system of this utility model.

[0027] Figure 11 This is a schematic diagram of the fifth embodiment of the concrete reinforcement lifting and pressing formwork system of this utility model.

[0028] Figure 12 This is a schematic diagram of Embodiment Six of the Concrete Reinforcement Lifting and Press Formwork System of this utility model. The labels in the diagram represent: 1. Lifting device; 11. Bracket; 12. Pad; 13. Screw; 131. Nut; 2. Bottom formwork; 3. Side formwork; 31. Sliding component; 4. Pouring space; 5. Elastic mechanism; 51. Elastic component; 6. Height limiting mechanism; 61. Limiting block; 611. Vertical groove; 612. Horizontal block; 62. Upper limit part; 63. Lower limit part; 64. Restricted part; 65. Demolding interval; 7. Elastic ring; 8. External support; 9. Elastic component; 10. Concrete structure. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Example 1: Figures 1 to 5 This invention illustrates a first embodiment of the concrete reinforcement lifting and pressing formwork system. The concrete reinforcement lifting and pressing formwork system of this embodiment includes a lifting device 1, a bottom formwork 2, and side formwork 3. The bottom formwork 2 is mounted on the lifting device 1, and the side formwork 3 is fitted onto the bottom formwork 2 and can move up and down relative to the bottom formwork 2. A pouring space 4, open at the top, is formed between the inner surface of the side formwork 3 and the top surface of the bottom formwork 2 for pouring reinforcement material. An elastic mechanism 5 for supporting or pulling up the side formwork 3 and a height limiting mechanism 6 for limiting the height of the side formwork 3 relative to the bottom formwork 2 are provided between the bottom formwork 2 and the side formwork 3. An elastic ring 7 is provided at the top of the side formwork 3.

[0034] The construction process of this concrete reinforcement lifting and pressing formwork system is as follows: First, fix the lifting device 1 to the concrete structure 10, positioning it below the area to be reinforced on the bottom surface of the concrete structure 10. Second, pour reinforcement material into the pouring space 4, ensuring the top surface of the reinforcement material is flush with or close to the top surface of the elastic ring 7. Third, lift the bottom formwork 2 using the lifting device 1, bringing the elastic ring 7 into contact with the concrete structure 10. Fourth, continue lifting the bottom formwork 2 using the lifting device 1, raising the opposite side formwork 3 of the bottom formwork 2, allowing the reinforcement material to contact the concrete structure. Step 10: Press and fill the groove of the area to be reinforced with the reinforcing material; simultaneously, the bottom formwork 2 lifts the side formwork 3 through the elastic mechanism 5, so that the elastic ring 7 is pressed against the concrete structure 10; Step 5: After the reinforcing material reaches the solidification requirement, the lifting device 1 drives the bottom formwork 2 to descend, so that the bottom formwork 2 is separated from the reinforcing material; Step 6: The lifting device 1 drives the bottom formwork 2 to continue to descend until the height limiting mechanism 6 pulls down the side formwork 3, so that the side formwork 3 is separated from the reinforcing material; Finally, the lifting device 1 can be removed from the concrete structure 10 for the next construction site. First, because the bottom formwork 2 and the side formwork 3 can move up and down relative to each other, the bottom formwork 2 can rise relative to the side formwork 3 to press the reinforcing material against the concrete structure 10. Compared with the existing technology that requires the compression deformation of the rubber pad to make the reinforcing material adhere tightly to the concrete structure 10, this increases the reinforcing height of the reinforcing material, which can meet the reinforcement requirements of the reinforcement surface with a deep groove. It is less likely to cause gaps due to poor adhesion between the reinforcing material and the reinforcement surface, thus improving both the reinforcement effect and adaptability. Second, it can achieve demolding of the bottom formwork 2 first and then the side formwork 3, and demolding can be achieved by lowering the overall formwork, which is less likely to damage the reinforcement structure formed by the reinforcing material. Third, because the side formwork 3 and the bottom formwork 2 are relatively close together, the reinforcement material can be pressed against the concrete structure 10. An elastic mechanism 5 is provided. The bottom formwork 2 lifts the side formwork 3 through the elastic mechanism 5, so that during the pressing process of the elastic ring 7 and the concrete structure 10, the deformation of the elastic mechanism 5 can reduce the deformation of the elastic ring 7, which is beneficial to protect the elastic ring 7 and improve its service life. Furthermore, the deformation of the elastic mechanism 5 and the elastic ring 7, combined with the rise of the bottom formwork 2 relative to the side formwork 3, further increases the rise and reinforcement height of the reinforcement material, thereby further improving the reinforcement effect and adaptability. Fourth, the bottom formwork 2 and the side formwork 3 are connected by a height limiting mechanism 6, which on the one hand prevents the bottom formwork 2 and the side formwork 3 from separating, and on the other hand limits the relative distance between the bottom formwork 2 and the side formwork 3, which is beneficial to ensure the thickness of the reinforcement material.

[0035] Furthermore, in this embodiment, the elastic mechanism 5 includes multiple elastic components 51 respectively disposed on opposite sides of the bottom template 2, and the side template 3 is supported on each elastic component 51. The elastic components 51 form an elastic support below the side template 3, which is more convenient to set up than the lifting method, and does not need to be fixedly connected to the side template 3 and the bottom template 2 (such as placing the elastic components 51 on the bottom template 2 or the height limiting mechanism 6), making it easy to replace.

[0036] Furthermore, in this embodiment, the height limiting mechanism 6 includes a plurality of limiting blocks 61 respectively disposed on opposite sides of the bottom template 2. The side template 3 is slidably engaged with the limiting blocks 61. The limiting blocks 61 are provided with upper limit portions 62 and lower limit portions 63 arranged vertically at intervals. The side template 3 is provided with a restricted portion 64, which is limited between the upper limit portion 62 and the lower limit portion 63. The limiting blocks 61 are slidably engaged with the side template 3, providing a guiding function for the lifting of the side template 3. Preferably, the bottom template 2 is fixed to the bottom template 2 by screws. The restricted portion 64 is limited between the upper limit portion 62 and the lower limit portion 63, thereby limiting the lifting height of the side template 3 relative to the bottom template 2.

[0037] Furthermore, such as Figure 2 and Figure 4 As shown, in this embodiment, the limiting block 61 is provided with a vertical groove 611, and the side template 3 is provided with a sliding component 31 at the corresponding position of each vertical groove 611. The sliding component 31 slides in cooperation with the corresponding vertical groove 611. The upper limit part 62 is located on the top wall of the vertical groove 611, the lower limit part 63 is located on the bottom wall of the vertical groove 611, and the limiting part 64 is located on the sliding component 31. Preferably, the sliding component 31 is a sliding screw that is threadedly connected to the side template 3, and the vertical groove 611 is an oblong groove.

[0038] Furthermore, in this embodiment, a horizontal block 612 is fixedly provided at the bottom end of the limiting block 61. The horizontal block 612 is fixedly connected to the bottom template 2, and each elastic component 51 is placed on each horizontal block 612. Each elastic component 51 is placed on each horizontal block 612 but is not fixed to the horizontal block 612, which facilitates replacement. Preferably, the horizontal block 612 is fixed to the bottom surface of the bottom template 2 by screws, and the horizontal block 612 and the limiting block 61 are connected in an L-shape.

[0039] Furthermore, in this embodiment, when the restricted part 64 abuts against the upper limit part 62, the bottom surface of the side template 3 is located below the top surface of the bottom template 2.

[0040] Furthermore, such as Figure 1 and Figure 2As shown, in this embodiment, the lifting device 1 includes a bracket 11 and a support pad 12 disposed on the bracket 11. The bottom template 2 is disposed on the support pad 12. At least one row of screws 13 for fixing to the concrete structure 10 is provided on each side of the bracket 11. The screws 13 lift the bottom template 2 through the bracket 11. Preferably, the bracket 11 can be set to be smaller than the bottom template 2, which facilitates increasing the lifting height of the bottom template 2 relative to the side template 3, thereby increasing the lifting and reinforcement height of the reinforcing material. Of course, in other embodiments, the screws 13 can also be replaced by telescopic components, hand chain hoists, electric hoists, winches, etc.

[0041] Furthermore, in this embodiment, the bracket 11 is provided with a through hole, the screw 13 passes through the through hole, and nuts 131 are provided above and below the bracket 11. On the one hand, by turning the nuts 131 upward, the bottom template 2 can be lifted; on the other hand, by turning the nuts 131 downward, the bottom template 2 and the side template 3 can be demolded sequentially.

[0042] Furthermore, in this embodiment, the side template 3 has a square cross-section, and the elastic ring 7 is also square. Preferably, the reinforcing material is a high-strength, high-viscosity, self-compacting fiber material.

[0043] Example 2: Figure 6 This paper illustrates a second embodiment of the concrete reinforcement lifting and pressing formwork system of this utility model. The structure of the concrete reinforcement lifting and pressing formwork system in this embodiment is basically the same as that in the first embodiment, except that when the restricted part 64 abuts against the upper limit part 62, a demolding gap 65 is formed between the bottom surface of the side formwork 3 and the top surface of the bottom formwork 2. The demolding gap 65 between the bottom surface of the side formwork 3 and the top surface of the bottom formwork 2 facilitates the insertion of external operating components, such as pry bars, into the demolding gap 65 to assist in demolding.

[0044] Example 3: Figures 7 to 9 This paper illustrates a third embodiment of the concrete reinforcement lifting and pressing formwork system of this utility model. The structure of the concrete reinforcement lifting and pressing formwork system in this embodiment is basically the same as that in Embodiment 1 or Embodiment 2, except that: an outer support member 8 is provided on the outside of the elastic ring 7 of the side formwork 3, and an elastic component 9 is provided between the outer support member 8 and the side formwork 3. The elastic ring 7 can block the reinforcement material and allow air to pass through. The elastic ring 7 can block the reinforcement material and allow air to pass through. An opening is made in the elastic ring 7 for venting, preventing the reinforcement material from being discharged during the lifting of the bottom formwork 2 relative to the side formwork 3. This helps to avoid the reinforcement material not being tightly attached to the reinforced surface, thus improving the reinforcement effect. Furthermore, the outer support member 8 forms a side support on the outside of the elastic ring 7 and is lifted and sleeved with the side formwork 3. On the one hand, it does not affect the compression deformation of the elastic ring 7, and on the other hand, it prevents the elastic ring 7 from shifting and deforming outward, thus improving its service life. Preferably, the elastic ring 7 is a sponge.

[0045] Furthermore, in this embodiment, the outer support member 8 is a breathable outer support sleeve. Preferably, the top of the side template 3 is provided with a receiving slot, the outer support member 8 is movably inserted into the receiving slot, and the elastic component 9 is disposed in the receiving slot and abuts against the bottom surface of the outer support member 8 and the bottom wall of the receiving slot.

[0046] Example 4: Figure 10 The present invention illustrates a fourth embodiment of the concrete reinforcement lifting and pressing formwork system. The structure of the concrete reinforcement lifting and pressing formwork system in this embodiment is basically the same as that in embodiment three, except that the external support member 8 is an external support column, and there are multiple of them, which are arranged at intervals around the periphery of the elastic ring 7.

[0047] Example 5: Figure 11 The fifth embodiment of the concrete reinforcement lifting and pressing formwork system of this utility model is shown. The structure of the concrete reinforcement lifting and pressing formwork system in this embodiment is basically the same as that in the first embodiment, except that the lifting device 1 is a lifting device that is hoisted onto the concrete structure.

[0048] Example 6: Figure 12 The sixth embodiment of the concrete reinforcement lifting and pressing formwork system of this utility model is shown. The structure of the concrete reinforcement lifting and pressing formwork system in this embodiment is basically the same as that in the first embodiment, except that the lifting device 1 is a lifting device supported on the ground.

[0049] Example 7: A concrete reinforcement construction method, using the concrete reinforcement lifting and pressing formwork system described in Example 1, Example 2, or Example 3, includes the following steps: S1. Fix the lifting device 1 to the concrete structure 10 and position it below the area to be reinforced on the bottom surface of the concrete structure 10; S2. Pour reinforcing material into the pouring space 4 so that the top surface of the reinforcing material is flush with or close to the top surface of the elastic ring 7. S3. Lifting device 1 lifts bottom formwork 2, so that elastic ring 7 comes into contact with concrete structure 10. S4. The lifting device 1 continues to lift the bottom formwork 2, causing the bottom formwork 2 to rise relative to the side formwork 3, so that the reinforcing material is pressed against the concrete structure 10 and the reinforcing material fills the groove at the point to be reinforced; at the same time, the bottom formwork 2 lifts the side formwork 3 through the elastic mechanism 5, so that the elastic ring 7 is pressed against the concrete structure 10. S5. After the reinforcing material reaches the solidification requirement, the lifting device 1 drives the bottom template 2 to descend, so that the bottom template 2 is separated from the reinforcing material. S6. The lifting device 1 drives the bottom template 2 to continue to descend until the height limiting mechanism 6 pulls down the side template 3, causing the side template 3 to separate from the reinforcing material.

[0050] This concrete reinforcement construction method has several advantages. First, because the bottom formwork 2 and side formwork 3 can move relative to each other, the bottom formwork 2 can rise relative to the side formwork 3 to press the reinforcement material against the concrete structure 10. Compared to existing technologies that require the compression deformation of a rubber pad to ensure a tight fit between the reinforcement material and the concrete structure 10, this method increases the reinforcement height, meeting the reinforcement requirements for surfaces with deep grooves. It also reduces the likelihood of gaps arising from insufficient adhesion between the reinforcement material and the reinforced surface, thus improving both the reinforcement effect and adaptability. Second, it allows for the demolding of the bottom formwork 2 first, followed by the side formwork 3, with a relatively overall descent for demolding, minimizing damage to the reinforced structure formed by the reinforcement material. Third, because the side formwork 3 and the bottom formwork 3 can move relative to each other... An elastic mechanism 5 is provided between the templates 2. The bottom template 2 lifts the side template 3 through the elastic mechanism 5, so that during the pressing process of the elastic ring 7 and the concrete structure 10, the deformation of the elastic mechanism 5 can reduce the deformation of the elastic ring 7, which is beneficial to protect the elastic ring 7 and improve its service life. Furthermore, the deformation of the elastic mechanism 5 and the elastic ring 7, combined with the rise of the bottom template 2 relative to the side template 3, further increases the rise and reinforcement height of the reinforcement material, thereby further improving the reinforcement effect and adaptability. Fourth, the bottom template 2 and the side template 3 are connected by a height limiting mechanism 6, which on the one hand prevents the bottom template 2 and the side template 3 from separating, and on the other hand limits the relative distance between the bottom template 2 and the side template 3, which is beneficial to ensure the thickness of the reinforcement material.

[0051] Furthermore, before S1, the areas on the bottom surface of the concrete structure 10 that need reinforcement can be treated by grinding, roughening, milling, high-pressure water washing, and rebar installation.

[0052] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A lifting and pressing formwork system for concrete reinforcement, comprising a lifting device (1), a bottom formwork (2), and side formwork (3), characterized in that: The bottom template (2) is mounted on the lifting device (1). The side template (3) is fitted onto the bottom template (2) and can move up and down relative to the bottom template (2). The inner side of the side template (3) and the top surface of the bottom template (2) form a pouring space (4) for pouring reinforcing material and with an open top. The bottom template (2) and the side template (3) are provided with an elastic mechanism (5) for supporting or pulling up the side template (3) and a height limiting mechanism (6) for limiting the height of the side template (3) relative to the bottom template (2). The top of the side template (3) is provided with an elastic ring (7).

2. The concrete reinforcement lifting and pressing formwork system according to claim 1, characterized in that: The elastic mechanism (5) includes a plurality of elastic components (51) respectively disposed on opposite sides of the bottom template (2), and the side template (3) is supported on each elastic component (51).

3. The concrete reinforcement lifting and pressing formwork system according to claim 2, characterized in that: The height limiting mechanism (6) includes multiple limiting blocks (61) respectively located on opposite sides of the bottom template (2). The side template (3) is slidably engaged with the limiting blocks (61). The limiting blocks (61) are provided with upper limit parts (62) and lower limit parts (63) arranged at intervals. The side template (3) is provided with a restricted part (64), which is located between the upper limit part (62) and the lower limit part (63).

4. The concrete reinforcement lifting and pressing formwork system according to claim 3, characterized in that: The limiting block (61) is provided with a vertical groove (611). The side template (3) is provided with a sliding component (31) at the position corresponding to each vertical groove (611). The sliding component (31) slides in cooperation with the corresponding vertical groove (611). The upper limit part (62) is located on the top wall of the vertical groove (611), the lower limit part (63) is located on the bottom wall of the vertical groove (611), and the limiting part (64) is located on the sliding component (31).

5. The concrete reinforcement lifting and pressing formwork system according to claim 3, characterized in that: The bottom end of the limiting block (61) is fixed with a horizontal block (612), the horizontal block (612) is fixedly connected to the bottom template (2), and each of the elastic components (51) is placed on the horizontal block (612).

6. The concrete reinforcement lifting and pressing formwork system according to claim 3, characterized in that: When the restricted part (64) abuts against the upper limit part (62), a demolding gap (65) is formed between the bottom surface of the side template (3) and the top surface of the bottom template (2).

7. The concrete reinforcement lifting and pressing formwork system according to any one of claims 1 to 6, characterized in that: The side template (3) is fitted with an outer support (8) on the outside of the elastic ring (7). An elastic component (9) is provided between the outer support (8) and the side template (3). The elastic ring (7) can block the reinforcing material and allow air to pass through.

8. The concrete reinforcement lifting and pressing formwork system according to any one of claims 1 to 6, characterized in that: The lifting device (1) includes a bracket (11) and a pad (12) provided on the bracket (11). The bottom template (2) is provided on the pad (12). At least one row of screws (13) for fixing to the concrete structure (10) is provided on both sides of the bracket (11).

9. The concrete reinforcement lifting and pressing formwork system according to claim 8, characterized in that: The bracket (11) is provided with a through hole, the screw (13) passes through the through hole, and nuts (131) are provided above and below the bracket (11).

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