Adjustable steel form

Abstract

This invention discloses an adjustable steel formwork, relating to the field of steel formwork construction technology. The adjustable steel formwork includes a first steel formwork, a second steel formwork, and an adjustment assembly. Two first steel formworks are provided, each including a bottom formwork and side formworks, with the side formworks surrounding the sides of the bottom formwork. The second steel formwork is positioned between the two first steel formworks, and a support plate is provided at its bottom. The adjustment assembly includes an adjustment component, a channel steel, a steel pipe, and a sliding component. The channel steel is installed at the bottom of the bottom formwork, and the adjustment component is connected to the channel steel. The channel steel has a groove structure, and a sliding component is provided on the inner wall of the groove. The steel pipe is installed inside the groove, and a connector is provided at the end of the steel pipe, with the end of the connector slidably connected to the sliding component. This invention features a simple structure, easy adjustment, and convenient disassembly and assembly. It better ensures the dimensional accuracy and quality of precast blocks, improves construction efficiency on-site, and enhances and maintains the construction environment.

Description

Technical Field

[0001] This invention relates to the field of steel formwork construction technology, specifically to an adjustable steel formwork. Background Technology

[0002] Because traditional nuclear power plant tunnel floor slab concrete pouring construction requires the erection of full-span scaffolding to support the bottom formwork, to facilitate construction and reduce costs and increase efficiency, it is proposed to replace the construction of some nuclear power plant tunnel roof slabs with precast composite slabs instead of cast-in-place reinforced concrete. Furthermore, the traditional construction of roof slabs requires the erection of full-span scaffolding and the support of bottom formwork, and the formwork and scaffolding can only be removed after the concrete strength reaches the specified requirements. This process is cumbersome, has low mechanization, and slow construction efficiency, resulting in a long construction period, excessively high costs for renting and purchasing reusable materials such as steel pipes, fasteners, top and bottom supports, formwork, and timber, and also requires a large amount of labor.

[0003] Compared with traditional wooden formwork, steel formwork has several advantages: ① It has high strength and is not prone to bending and deformation, ensuring the dimensional accuracy and appearance quality of the concrete; ② Steel formwork has low adhesion, making demolding easy and preventing damage to the concrete surface; ③ Steel formwork is manufactured with high precision and tight joints, preventing grout leakage; ④ It has a long service life, can be quickly turned over, and greatly improves the material reuse rate.

[0004] For example, Chinese patent CN219315525U discloses a size-adjustable cap beam template, relating to the field of cap beam casting technology. The template includes several templates arranged from top to bottom, connected in series by several columnar guide rods. One side of each template has a locking block fitted onto a columnar guide rod. The bottom surface of each locking block is symmetrically connected to an inclined arc-shaped plate, forming a frustum-shaped sliding cavity between two arc-shaped plates. The cavity wall is slidably connected to the top edge of the columnar guide rods. The bottom ends of the columnar guide rods are provided with bases, the top surface of which contacts the bottom surface of the lowest template. When assembling two adjacent templates, the insert rod on the lowest template is inserted into a socket to fix the relative position of the template and the base. The templates on adjacent layers are fixed by inserting insert rods into slots on the template below. The L-shaped lifting blocks facilitate the hooking and lifting of the template by a crane. However, this patent still has the aforementioned shortcomings.

[0005] Therefore, in engineering construction, simple and easy-to-operate mechanized adjustable steel formwork is particularly important in order to facilitate the large-scale forming of precast cover plates, shorten the construction cycle, reduce the use of turnover materials, rationally arrange the labor force on the construction site, and promote civilized construction. Thus, an adjustable steel formwork for large-scale mass production of precast cover plates is proposed. Summary of the Invention

[0006] This invention addresses the problems existing in the prior art by providing an adjustable steel formwork.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] An adjustable steel formwork includes a first steel formwork, a second steel formwork, a baffle, and an adjustment assembly. Two first steel formworks are provided, each including a bottom formwork and side formworks. The side formworks surround the sides of the bottom formwork, and the baffle is installed between adjacent side formworks. The second steel formwork is located between the two first steel formworks, and a support plate is provided at the bottom of the second steel formwork. The adjustment assembly includes an adjustment component, a channel steel, a steel pipe, and a sliding component. The channel steel is installed at the bottom of the bottom formwork, and the adjustment component is connected to the channel steel. The channel steel has a groove structure, and a sliding component is provided on the inner wall of the groove. The steel pipe is installed inside the groove, and a connector is provided at the end of the steel pipe, with the end of the connector slidably connected to the sliding component.

[0009] Based on the above technical solution, furthermore, several adjustment components are provided, and the several adjustment components are evenly arranged below the first steel template.

[0010] Based on the above technical solution, the adjusting component further includes at least two adjusting rods and several crossbars, with a crossbar installed between two adjacent channel steels, both adjusting rods installed below the first steel template, and several channel steels arranged between the two adjusting rods.

[0011] Based on the above technical solution, each of the channel steels is further provided with a first set of sliding members and a second set of sliding members, which are respectively located on the inner walls of opposite sides inside the channel steel.

[0012] Based on the above technical solution, further, the first set of sliding components includes a first driving wheel, a first driven wheel, and a second driven wheel; the second set of sliding components includes a second driving wheel, a third driven wheel, and a fourth driven wheel. The first driving wheel and the second driving wheel are respectively installed on different inner walls of the channel steel, and the first driving wheel is connected to an adjusting rod on the outside of the channel steel through a rolling bearing installed inside the channel steel; the second driving wheel is connected to one end of a crossbar between another adjacent channel steel through a rolling bearing installed inside the channel steel; a second driven wheel is provided between the first driven wheel and the first driving wheel, and a chain-shaped first conveyor belt is fitted on the first driving wheel, the first driven wheel, and the second driven wheel; a chain-shaped second conveyor belt is fitted on the second driving wheel, the third driven wheel, and the fourth driven wheel, and the fourth driven wheel is located between the second driving wheel and the third driven wheel.

[0013] Based on the above technical solution, the connector is further fixed on the steel pipe, and the two ends of the connector located in the same slot are respectively connected to the second driven wheel and the fourth driven wheel, and the connector is parallel to the crossbar.

[0014] Based on the above technical solution, the adjusting rod is further Z-shaped. Specifically, since the adjusting rod is located at the bottom of the first steel template, a Z-shaped adjusting rod is adopted to provide it with operating space, facilitate actual operation, and save effort.

[0015] Based on the above technical solution, the steel pipe is further provided with dimension markings indicating precision, and pulley sets are installed at the top and bottom of the steel pipe, with the bottom pulley set moving within the groove.

[0016] Based on the above technical solution, furthermore, both the bottom mold and the side mold are provided with a keel structure.

[0017] Based on the above technical solution, the end of the steel pipe is further provided with an abutment plate. The abutment plate is away from the channel steel. During the sliding process, the abutment plate abuts or does not contact the support plate, and the steel pipe is set perpendicular to the support plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) By setting up adjustment components, the present invention can freely adjust the distance of the steel pipe movement as needed. The overall design is simple, easy to adjust, and easy to disassemble and assemble. Moreover, the dimensions are engraved on the steel pipe, which can better ensure the dimensional accuracy and quality of the precast blocks, which is conducive to improving the construction efficiency on the construction site and improving and maintaining the construction environment.

[0020] (2) The present invention achieves adjustable reinforcement of precast slabs by using detachable baffles with different hole sizes and spacings; and achieves adjustable size of precast slabs by using the synergistic effect of the conveyor belt of the first steel template, each moving wheel, the steel pipe with precision engraving, the matching second steel template and the Z-shaped adjusting rod. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention in its unassembled state;

[0022] Figure 2 This is a perspective view of the overall structure after assembly according to Embodiment 1 of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0024] Reference numerals in the attached drawings: 1. First steel formwork; 2. Second steel formwork; 3. Bottom formwork; 4. Side formwork; 5. Baffle; 6. Keel; 7. Crossbar; 8. Adjusting rod; 9. Steel pipe; 10. Channel steel; 11. Groove; 12. First driving wheel; 13. First driven wheel; 14. First conveyor belt; 15. Pulley block; 16. Abutment plate; 17. Support plate; 18. Second driven wheel; 19. Second driving wheel; 20. Third driven wheel; 21. Fourth driven wheel; 22. Second conveyor belt. Detailed Implementation

[0025] The present invention will be further described and illustrated below with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly, provided that there is no mutual conflict.

[0026] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Technical features in the various embodiments of the present invention can be combined accordingly without mutual conflict.

[0027] In the description of this invention, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, i.e., there is an intermediate element. Conversely, when an element is said to be "directly" connected to another element, there is no intermediate element.

[0028] In the description of this invention, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features.

[0029] Example

[0030] Combination Figures 1-3As shown, this embodiment implements an adjustable steel formwork, including a first steel formwork 1, a second steel formwork 2, a baffle 5, and an adjustment assembly. Two first steel formwork 1s are provided, each including a bottom mold 3 and side molds 4. The side molds 4 surround the sides of the bottom mold 3, and the baffle 5 is installed between two adjacent side molds 4. The second steel formwork 2 is located between the two first steel formwork 1s, and a support plate 17 is provided at the bottom of the second steel formwork 2. The adjustment assembly includes an adjusting component, a channel steel 10, a steel pipe 9, and a sliding component. The channel steel 10 is installed at the bottom of the bottom mold 3, and the adjusting component is connected to the channel steel 10. The channel steel 10 has a slot 11 structure, and multiple sets of sliding components are provided on the inner wall of the slot 11, including a first set of sliding components and a second set of sliding components. The first set of sliding components and the second set of sliding components are respectively located on the inner walls of opposite sides inside the channel steel 10. The steel pipe 9 is installed inside the slot 11, and a connecting component is provided at the end of the steel pipe 9. The end of the connecting component is connected to different sets of sliding components. The slot structure of the channel steel 10 can serve as the movable track of the adjustment assembly. The design involves creating a minimum-sized first steel formwork 1 to match the different specifications of the precast cover plates required at the construction site. This minimum size is defined as the size where two first steel formworks aligned top-to-top can be used for precasting without needing a second steel formwork. A second steel formwork 2 is then designed to accommodate larger precast cover plates. This larger size is defined as the length of the precast slab required, which, after adjustment and the addition of the second steel formwork, can meet the precasting requirements. For example, if the actual site requirements are for precast slabs of 1.5 meters, 2 meters, and 2.5 meters, then the first steel formwork aligned top-to-top can produce a 1.5-meter slab (this is the minimum). Adding second steel formworks of 0.5 meters and 1 meter in length will then meet the precasting requirements for 2-meter and 2.5-meter slabs (this is the maximum). In use, the combination of the first steel formwork 1 and the second steel formwork 2 achieves the purpose of mechanized adjustment of the adjustable steel formwork. Specifically, the first steel formwork 1 can be equipped with a detachable concrete baffle 5 with pre-reserved rebar openings on the upper part of the side formwork 4, according to the size and spacing requirements of the precast cover plate reinforcement. The requirements for the size and spacing of the reinforcement can be understood as follows: because reinforcement needs to be arranged within the precast slab structure, the type and spacing of the reinforcement may change when the required precast slab size is different. Therefore, to facilitate the arrangement and positioning of the reinforcement, and to ensure convenient demolding after forming without damaging the side formwork, detachable side formwork of different types and spacings, i.e., baffle 5, is customized. The second steel formwork 2 also has a keel 6 structure at its bottom, which is connected to the keel 6 structure of the first steel formwork 1. The keel 6 structure of the second steel formwork 2 is perpendicular to the support plate 17 of the second steel formwork 2. The second steel formwork 2 can be customized in various specifications according to the actual needs of the construction site.

[0031] Furthermore, several adjustment components are provided, and these components are evenly arranged below the first steel template 1. Each adjustment component includes at least two adjustment rods 8 and several crossbars 7. A crossbar 7 is installed between two adjacent channel steels 10. Both adjustment rods 8 are installed below the first steel template 1, and several channel steels 10 are arranged between the two adjustment rods 8. The adjustment rods 8 are Z-shaped because they are located at the bottom of the first steel template 1. To provide them with operating space, facilitate practical operation, and save effort, Z-shaped adjustment rods are adopted. The first set of sliding components includes a first driving wheel 12, a first driven wheel 13, and a second driven wheel 18. The second set of sliding components includes a second driving wheel 19, a third driven wheel 20, and a fourth driven wheel 21. The first driving wheel 12 and the second driving wheel 19 are respectively installed on different inner walls inside the channel steel. The first driving wheel 12 is connected to an adjusting rod 8 on the outside of the channel steel 10 via a rolling bearing installed inside the channel steel 10. The second driving wheel 19 is connected to one end of a crossbar 7 between two adjacent channel steels via a rolling bearing installed inside the channel steel 10. The first driven wheel 18... A second driven wheel 18 is provided between wheel 13 and the first driving wheel 12, and a chain-like first conveyor belt 14 is fitted onto the first driving wheel 12, the first driven wheel 13, and the second driven wheel 18; a chain-like second conveyor belt 22 is fitted onto the second driving wheel 19, the third driven wheel 20, and the fourth driven wheel 21, with the fourth driven wheel 21 located between the second driving wheel 19 and the third driven wheel 20; the connecting member passes through the interior of the steel pipe 9, and its two ends, located in the same slot 11, are respectively connected to the second driven wheel 18 and the fourth driven wheel 21, and the connecting member is parallel to the crossbar 7. The steel pipe 9 is also engraved with dimension markings indicating precision, and multiple pulley sets 15 are installed at the top and bottom of the steel pipe 9, with the bottom pulley set 15 moving within the slot 11. The first conveyor belt 14 is chain-shaped. Since the first conveyor belt 14 is chain-shaped and each driving wheel and each driven wheel is toothed, the first driven wheel 13 will not slip, causing the steel pipe 9 to be unable to move. If slippage occurs, since the bottom and top of the steel pipe 9 are fixed with pulley groups 15, the steel pipe 9 can be moved by manually pushing and pulling the abutment plate 16 in conjunction with the pulley groups 15 fixed at the top and bottom of the steel pipe 9. Since the positions of the first driving wheel 12, the first driven wheel 13, the second driving wheel 19, the third driven wheel 20, the first conveyor belt 14, and the second conveyor belt 22 set on the channel steel 10 are fixed, rolling bearings must be installed on the steel pipe 9 to make the first steel template 1 adjustable.

[0032] Furthermore, both the bottom mold 3 and the side mold 4 are provided with a keel 6 structure. Specifically, the keel 6 structure of the bottom mold 3, which is perpendicular to the direction of the support plate 17, is arranged in a series of intersecting and equally spaced channels 10. The end of the steel pipe 9 is also provided with an abutment plate 16, which is away from the channel 10. During the sliding process, the abutment plate 16 will move to a state of contact with or non-contact with the support plate 17, and the steel pipe 9 is set perpendicular to the support plate 17.

[0033] The working principle of this device is as follows: When adjustment is required, the adjustment rod 8 can be rotated, which in turn drives the first driving wheel 12 connected to the adjustment rod 8 to rotate. The rotation of the first driving wheel 12 drives the first driven wheel 13 and the second driven wheel 18 at the upper end of the same first conveyor belt 14. The fourth driven wheel 21 of the second set of sliding members connected to the second driven wheel 18 through the connecting member rotates under the rotation of the second driven wheel 18, which in turn drives the second driving wheel 19 located on the second conveyor belt 22 to rotate. At the same time, the second conveyor belt 22 also starts to rotate, which drives the third driven wheel 20 to rotate. The crossbar 7 connected to the second driving wheel 19 rotates. When the crossbar 7 rotates, it drives the first driving wheel 12 on another channel steel 10 connected to the other end of the crossbar 7 to rotate. The rotation of the first driving wheel 12 on the other channel steel 10 drives the corresponding driven wheel to rotate. Since the installation structure and motion principle of each driving wheel in all channel steels 10 are the same, they will not be described in detail here. When the second driven wheel 18 and the fourth driven wheel 21 inside the channel steel 10 move on their respective conveyor belts under the connection of the connector, the steel pipe 9 connected to the connector moves in the groove 11 along the coaxial direction of the groove 11. During the movement, the pulley group 15 at the bottom of the steel pipe 9 slides in the groove 11, and the pulley group 15 at the top of the steel pipe 9 can contact the first steel template 1, which not only plays a sliding role, but also plays a supporting role for the first steel template 1. When the abutment plate 16 at the end of the steel pipe 9 abuts against the support plate 17, the movement stops. Similarly, when the adjusting rod 8 is rotated in the opposite direction, the steel pipe 9 moves away from the support plate 17 under the power. When one end of the steel pipe 9 slides out of the groove 11, it extends to the bottom of the second steel template 2 during the movement. Therefore, it can also provide a certain support for the second steel template 2. The sliding distance can be adjusted by marking the size scale on the outer wall of the steel pipe 9. That is, when the Z-shaped adjusting rod 8 rotates, it drives the gears and conveyor belt on the channel steel 10. At this time, the steel pipe 9 can slide back and forth on the corresponding conveyor belt by means of the rolling bearing, so as to achieve the purpose of adjustment.

[0034] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. An adjustable steel formwork, characterized in that, Includes a first steel formwork, a second steel formwork, baffles, and adjusting components; Two first steel formworks are provided, and the first steel formwork includes a bottom formwork and a side formwork. The side formworks are arranged around the sides of the bottom formwork, and baffles are installed between two adjacent side formworks. The second steel formwork is located between the two first steel formworks, and a support plate is provided at the bottom of the second steel formwork; The adjustment assembly includes an adjusting component, a channel steel, a steel pipe, and a sliding component. The channel steel is installed at the bottom of the bottom mold, the adjusting component is connected to the channel steel, the channel steel has a slot structure, the inner wall of the slot is provided with a sliding component, the steel pipe is installed in the slot, and the end of the steel pipe is provided with a connector, the end of the connector is slidably connected to the sliding component. The adjusting component includes at least two adjusting rods and several crossbars. A crossbar is installed between two adjacent channel steels. Both adjusting rods are installed below the first steel template, and several channel steels are arranged between the two adjusting rods. Each of the channel steels is provided with a first set of sliding members and a second set of sliding members, which are respectively located on the inner walls of opposite sides inside the channel steel. The first set of sliding components includes a first driving wheel, a first driven wheel, and a second driven wheel. The second set of sliding components includes a second driving wheel, a third driven wheel, and a fourth driven wheel. The first driving wheel and the second driving wheel are respectively installed on different inner walls of the channel steel. The first driving wheel is connected to an adjusting rod on the outside of the channel steel through a rolling bearing installed inside the channel steel. The second driving wheel is connected to one end of a crossbar between another adjacent channel steel through a rolling bearing installed inside the channel steel. A second driven wheel is provided between the first driven wheel and the first driving wheel. A first conveyor belt is fitted on the first driving wheel, the first driven wheel, and the second driven wheel. A second conveyor belt is fitted on the second driving wheel, the third driven wheel, and the fourth driven wheel. The fourth driven wheel is located between the second driving wheel and the third driven wheel.

2. The adjustable steel formwork according to claim 1, characterized in that, Several adjustment components are provided, and the adjustment components are evenly arranged below the first steel template.

3. An adjustable steel formwork according to claim 1, characterized in that, The connector is fixed on the steel pipe, and the two ends of the connector located in the same slot are respectively connected to the second driven wheel and the fourth driven wheel. The connector is parallel to the crossbar.

4. An adjustable steel formwork according to claim 1, characterized in that, The adjusting rod is Z-shaped.

5. An adjustable steel formwork according to claim 1, characterized in that, The steel pipe is engraved with dimension markings indicating precision, and pulley sets are installed at the top and bottom of the steel pipe, with the bottom pulley set moving within the groove.

6. An adjustable steel formwork according to claim 1, characterized in that, Both the bottom mold and the side mold are provided with a keel structure.

7. An adjustable steel formwork according to claim 1, characterized in that, The steel pipe is also provided with an abutment plate at its end. The abutment plate is away from the channel steel. During the sliding process, the abutment plate abuts or does not contact the support plate. The steel pipe is set perpendicular to the support plate.

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