Post-cast strip dabbing-free supporting device

Abstract

The utility model provides a post-cast strip chiseling-free supporting device, which relates to the technical field of building construction and comprises a post-cast strip steel plate, a pin hole sleeve, a pin, an inner supporting adjusting iron plate, an inner supporting rotating nut rod and an inner supporting screw rod. The flatness, the perpendicularity and the spacing distance between the post-cast strip steel plates are rotationally adjusted through threaded connection of the inner supporting rotating nut rod and the inner supporting screw rod to meet the construction requirement, meanwhile, patterns on the post-cast strip steel plates meet the requirement of new and old concrete pouring joint faces, follow-up chiseling treatment is avoided, multiple positions of the device are movably connected, and the construction efficiency is improved. Splicing is simple, turnover use can be achieved, and the problems that turnover use is difficult, the construction effect is affected in the chiseling process, and environmental pollution is likely to be generated in an existing construction method are solved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a post-pouring strip support device that does not require roughening. Background Technology

[0002] Traditional post-cast strips typically involve welding a steel reinforcement cage, then wrapping it with wire mesh, and finally welding it between the upper and lower layers of reinforcement in the floor slab. During construction, the wire mesh needs to be chiseled and the concrete surface roughened to enhance the bond strength between the old and new concrete. However, this traditional method has several drawbacks: First, the welded steel reinforcement cage and wire mesh post-cast strip is a one-time investment and cannot be reused or recycled. Second, the welding of the steel reinforcement cage during formwork support can generate open flames, posing a safety hazard. Third, the formwork support and concrete chiseling processes for the post-cast strip are time-consuming and labor-intensive, and can easily damage the concrete structure, affecting the construction results. Furthermore, roughening requires manual or mechanical operation, which is time-consuming and may lead to delays due to insufficient equipment. Additional steps such as cleaning laitance, roughening, and waste disposal are necessary, increasing management complexity. Manual roughening can result in uneven surfaces or depth deviations, affecting the bond between the old and new concrete. Roughening may also damage the reinforcement protective layer or the concrete itself, leading to structural defects. Additionally, roughening generates significant dust and noise, impacting the construction environment and the health of construction workers. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a post-pouring strip support device that does not require roughening.

[0004] A post-cast strip support device without chiseling is provided, comprising: a post-cast strip steel plate and an adjustment device. The post-cast strip steel plates are arranged in pairs, and each post-cast strip steel plate includes a second post-cast strip patterned steel plate sub-plate, a post-cast strip patterned steel plate main plate, and a first post-cast strip patterned steel plate sub-plate arranged longitudinally. Each of the second post-cast strip patterned steel plate sub-plate, the post-cast strip patterned steel plate main plate, and the first post-cast strip patterned steel plate sub-plate is provided with a corresponding pin hole sleeve, and a pin is provided on the pin hole sleeve. The connection between the second post-cast strip patterned steel plate sub-plate and the post-cast strip patterned steel plate main plate, as well as the post-cast strip pattern... Reinforcing bar pre-reserved holes are provided at the connection between the main steel plate and the first post-cast strip patterned steel plate sub-plate. An internal support fixing sleeve is provided on the main steel plate of the post-cast strip patterned steel plate. The adjustment device includes an internal support adjusting iron plate, an internal support rotating nut rod and an internal support screw rod. The internal support screw rods are set in pairs. One end of the internal support screw rod is connected to the internal support rotating nut rod, and the other end of the internal support screw rod is connected to the internal support adjusting iron plate. The internal support adjusting iron plate is installed on the internal support fixing sleeve. A support angle bracket is provided at the bottom of the first post-cast strip patterned steel plate sub-plate.

[0005] Furthermore, the pin is L-shaped, and the cross-section of the pin is square.

[0006] Furthermore, the thickness of the second post-cast strip patterned steel plate sub-plate, the post-cast strip patterned steel plate main plate, and the first post-cast strip patterned steel plate sub-plate is all 3mm.

[0007] Furthermore, the lengths of the second post-cast strip patterned steel plate sub-plate, the post-cast strip patterned steel plate main plate, and the first post-cast strip patterned steel plate sub-plate are all 2000mm.

[0008] Furthermore, the width of the main plate of the post-cast strip patterned steel plate is 80mm.

[0009] Furthermore, the width of both the first and second post-cast strip patterned steel plate sub-plates is 20mm.

[0010] Furthermore, the diameter of the inner support screw is 20mm.

[0011] Furthermore, the length of the inner support rotating nut rod is 400mm.

[0012] Furthermore, the cross-section of the inner support fixing sleeve is rectangular.

[0013] Furthermore, the cross-section of the inner support adjusting plate is rectangular.

[0014] The technical solution of this utility model has the following advantages:

[0015] In the technical solution provided by this utility model, the second patterned steel plate sub-plate, the main plate, and the first patterned steel plate sub-plate of the post-pouring strip are spliced ​​together in sequence. Simultaneously, pin holes and sleeves are used to achieve positioning with pins. The flatness, verticality, and spacing between the post-pouring strip steel plates are adjusted by the threaded connection of the inner support rotating nut rod and the inner support screw rod to meet construction requirements. Furthermore, the patterns on the second, main, and first post-pouring strip patterned steel plate sub-plates meet the requirements of the joint surface between the new and old concrete pouring, avoiding subsequent roughening and chiseling, effectively preventing dust and noise pollution, ensuring the quality of the finished concrete, ensuring a strong bond between the new and old concrete, and improving the overall structural integrity. The device uses multiple movable connections, making assembly simple and reusable, easy to operate, and improving work efficiency. The component dimensions of the device can be adjusted according to the width of the post-pouring strip required for construction, making the device highly scalable and flexible in use. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal support fixing sleeve, pin hole sleeve, and pin structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the main plate of the post-cast strip patterned steel plate, the first post-cast strip patterned steel plate sub-plate, and the second post-cast strip patterned steel plate sub-plate of the present invention.

[0019] Figure 3 This is a schematic diagram of the pre-drilled hole structure for reinforcing bars in this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection relationship between the inner support rotating nut rod and the inner support screw rod of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-Main plate of patterned steel plate for post-cast strip; 2-Second plate of patterned steel plate for first post-cast strip; 3-Second plate of patterned steel plate for second post-cast strip; 4-Rebar reserved hole; 5-Inner support fixing sleeve; 6-Pin hole sleeve; 7-Support angle bracket; 8-Pin; 9-Inner support adjusting iron plate; 10-Inner support rotating nut rod; 11-Inner support screw rod. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figures 1-4 The illustrated post-cast strip support device includes: a post-cast strip steel plate and an adjustment device. The post-cast strip steel plates are arranged in pairs, and each post-cast strip steel plate includes a second post-cast strip patterned steel plate sub-plate 3, a post-cast strip patterned steel plate main plate 1, and a first post-cast strip patterned steel plate sub-plate 2 arranged longitudinally. Multiple sets of pin hole sleeves 6 are correspondingly provided on each of the second post-cast strip patterned steel plate sub-plate 3, the post-cast strip patterned steel plate main plate 1, and the first post-cast strip patterned steel plate sub-plate 2. Pins 8 are provided on the pin hole sleeves 6. The connection between the second post-cast strip patterned steel plate sub-plate 3 and the post-cast strip patterned steel plate main plate 1, as well as the connection between the second post-cast strip patterned steel plate sub-plate 3 and the post-cast strip patterned steel plate main plate 1, are also included. Multiple sets of pre-drilled steel bar holes 4 are provided at the connection between the first post-cast strip patterned steel plate sub-plate 2 and the main plate 1 of the post-cast strip patterned steel plate. An inner support fixing sleeve 5 is provided on the main plate 1 of the post-cast strip patterned steel plate. The adjustment device includes an inner support adjusting iron plate 9, an inner support rotating nut rod 10 and an inner support screw rod 11. The inner support screw rods 11 are arranged in pairs. One end of the inner support screw rod 11 is connected to the inner support rotating nut rod 10, and the other end of the inner support screw rod 11 is connected to the inner support adjusting iron plate 9. The inner support adjusting iron plate 9 is installed on the inner support fixing sleeve 5. Multiple support brackets 7 are provided at the bottom of the first post-cast strip patterned steel plate sub-plate 2.

[0028] The aforementioned post-cast strip no-scraping support device is constructed by sequentially splicing a second post-cast strip patterned steel plate sub-plate 3, a post-cast strip patterned steel plate main plate 1, and a first post-cast strip patterned steel plate sub-plate 2. Simultaneously, a pin hole sleeve 6 and a pin 8 are used for positioning. The flatness, verticality, and spacing between the post-cast strip steel plates are adjusted using the threaded connection of the inner support rotating nut rod 10 and the inner support screw rod 11 to meet construction requirements. Furthermore, the patterns on the second post-cast strip patterned steel plate sub-plate 3, the post-cast strip patterned steel plate main plate 1, and the first post-cast strip patterned steel plate sub-plate 2 meet the requirements of the joint surface between the new and old concrete pours, avoiding subsequent roughening treatment. This eliminates the need for chiseling, effectively preventing dust and noise pollution, ensuring the quality of the finished concrete, ensuring a strong bond between the new and old concrete, and improving the overall structural integrity. The device employs multiple movable connections, making assembly simple and reusable, easy to operate, and improving work efficiency. The component dimensions of the device can be adjusted according to the width of the post-cast strip required for construction, making the device highly adaptable and flexible in use.

[0029] like Figures 1-4 As shown, in this embodiment, the pin 8 is L-shaped and has a square cross-section. The pin hole sleeve 6 is used in conjunction with the pin 8 and also has a square cross-section. The pin hole sleeve 6 is welded to the second post-cast strip patterned steel plate sub-plate 3, the post-cast strip patterned steel plate main plate 1, and the first post-cast strip patterned steel plate sub-plate 2. The welding method ensures the connection strength. The square pin 8 and the pin hole sleeve 6 are connected to facilitate the assembly and connection of the device, which helps to improve work efficiency.

[0030] like Figures 1-4 As shown, in this embodiment, the thickness of the second post-cast strip patterned steel plate sub-plate 3, the post-cast strip patterned steel plate main plate 1, and the first post-cast strip patterned steel plate sub-plate 2 is all 3mm; the length of the second post-cast strip patterned steel plate sub-plate 3, the post-cast strip patterned steel plate main plate 1, and the first post-cast strip patterned steel plate sub-plate 2 is all 2000mm; the width of the post-cast strip patterned steel plate main plate 1 is 80mm; the width of the first post-cast strip patterned steel plate sub-plate 2 and the second post-cast strip patterned steel plate sub-plate 3 is all 20mm; the dimensional data of the above-mentioned second post-cast strip patterned steel plate sub-plate 3, post-cast strip patterned steel plate main plate 1, and first post-cast strip patterned steel plate sub-plate 2 can be determined according to... Adjustments can be made according to actual construction needs and the width of the post-pouring strip. The dimensions and shapes of the second post-pouring strip patterned steel plate sub-plate 3, the post-pouring strip patterned steel plate main plate 1, and the first post-pouring strip patterned steel plate sub-plate 2 can also be customized to adapt to complex construction environments, shorten the construction period, and reduce project management costs. Reusability can reduce project material costs, improve the overall economic benefits of the project, reduce dust and noise pollution during construction, and meet the requirements of green construction. At the same time, the grout-stopping strip is applied tightly to the concrete surface to effectively prevent grout leakage, improve the integrity of the structure and waterproof performance, avoid the impact damage to the concrete caused by roughening, and reduce the risk of cracking.

[0031] like Figures 1-4 As shown, in this embodiment, the diameter of the inner support screw rod 11 is 20mm; the length of the inner support rotating nut rod 10 is 400mm; the inner support rotating nut rod 10 and the inner support screw rod 11 are connected by a thread to adjust the spacing, verticality and flatness between the post-cast strip steel plates, thereby improving the construction effect and ensuring the internal support strength of the device.

[0032] like Figures 1-4 As shown, in this embodiment, the cross-section of the inner support fixing sleeve 5 is rectangular; the cross-section of the inner support adjusting iron plate 9 is rectangular; the inner support fixing sleeve 5 is used to install the inner support adjusting iron plate 9, thereby realizing the adjustment of the spacing, verticality and flatness between the post-cast strip steel plates.

[0033] As shown in the figure, in this embodiment, firstly, the first patterned steel plate sub-plate 2 and the first patterned steel plate main plate 1 of the post-pouring strip are installed at the location of the post-pouring strip in the floor slab. The support brackets 7 on the first patterned steel plate sub-plate 2 provide auxiliary support for the first patterned steel plate sub-plate 2. The support brackets 7 are fixed to the floor slab with screws to maintain the stability of the first patterned steel plate sub-plate 2. Then, the reinforcing bars are installed into the pre-drilled holes 4 for the reinforcing bars between the first patterned steel plate sub-plate 2 and the first patterned steel plate main plate 1. Then, the second patterned steel plate sub-plate 3 is installed, and so on. The reinforcing bars are installed into the pre-drilled holes 4 between the main plate 1 and the secondary plate 3 of the patterned steel plate of the post-cast strip. Then, the pins 8 are installed into the corresponding pin hole sleeves 6 to lock them in place. After that, the inner support adjusting iron plate 9, the inner support rotating nut rod 10 and the inner support screw rod 11 are installed on the inner support fixing sleeve 5. The inner support screw rod 11 is rotated to adjust the spacing, verticality and flatness between the post-cast strip steel plates to improve the construction effect. Then, the concrete is poured. After the concrete is poured, all components of the device are removed and reused.

[0034] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A post-pouring strip chiseling-free supporting device, comprising: The post-cast strip steel plate and adjusting device are characterized in that the post-cast strip steel plate is arranged in pairs, and the post-cast strip steel plate comprises a second post-cast strip pattern steel plate auxiliary plate (3), a post-cast strip pattern steel plate main plate (1) and a first post-cast strip pattern steel plate auxiliary plate (2) arranged in sequence in the longitudinal direction, pin hole sleeves (6) are arranged on the second post-cast strip pattern steel plate auxiliary plate (3), the post-cast strip pattern steel plate main plate (1) and the first post-cast strip pattern steel plate auxiliary plate (2) in correspondence, pin pins (8) are arranged on the pin hole sleeves (6), steel bar reserved holes (4) are arranged at the connecting portions between the second post-cast strip pattern steel plate auxiliary plate (3) and the post-cast strip pattern steel plate main plate (1) and between the post-cast strip pattern steel plate main plate (1) and the first post-cast strip pattern steel plate auxiliary plate (2), an inner support fixing sleeve (5) is arranged on the post-cast strip pattern steel plate main plate (1), the adjusting device comprises an inner support adjusting iron plate (9), an inner support rotating nut rod (10) and inner support screw rods (11), the inner support screw rods (11) are arranged in pairs, one end of the inner support screw rods (11) is connected with the inner support rotating nut rod (10), the other end of the inner support screw rods (11) is connected with the inner support adjusting iron plate (9), the inner support adjusting iron plate (9) is arranged on the inner support fixing sleeve (5), and the bottom of the first post-cast strip pattern steel plate auxiliary plate (2) is provided with a support corner code (7).

2. The post-cast strip chiseling-free supporting device according to claim 1, characterized in that, The pin pin (8) is L-shaped, and the cross section of the pin pin (8) is square.

3. The post-cast strip chiseling-free supporting device according to claim 1, characterized in that, The thicknesses of the second post-cast strip pattern steel plate auxiliary plate (3), the post-cast strip pattern steel plate main plate (1) and the first post-cast strip pattern steel plate auxiliary plate (2) are all 3 mm.

4. The post-cast strip chipping-free support device according to claim 1, characterized in that, The lengths of the second post-cast strip pattern steel plate auxiliary plate (3), the post-cast strip pattern steel plate main plate (1) and the first post-cast strip pattern steel plate auxiliary plate (2) are all 2000 mm.

5. The post-cast strip chipping-free support device according to claim 1, characterized in that, The width of the post-cast strip pattern steel plate main plate (1) is 80 mm.

6. The post-cast strip chipping-free support device according to claim 1, characterized in that, The widths of the first post-cast strip pattern steel plate auxiliary plate (2) and the second post-cast strip pattern steel plate auxiliary plate (3) are both 20 mm.

7. The post-cast strip chipping-free support device according to claim 1, characterized in that, The diameter of the inner support screw rod (11) is 20 mm.

8. The post-cast strip chipping-free support device according to claim 1, characterized in that, The length of the inner support rotating nut rod (10) is 400 mm.

9. The post-cast strip chipping-free support device according to claim 1, characterized in that, The cross section of the inner support fixing sleeve (5) is rectangular.

10. The post-cast strip chipping-free support device according to claim 1, characterized in that, The cross section of the inner support adjusting iron plate (9) is rectangular.

Images