CN221856170U - Prefabricated and assembled concrete vertical member combined template capable of being turned over - Google Patents

Abstract

The utility model discloses a rotatable prefabricated and assembled concrete vertical component combined formwork, including a single formwork and a double-jointed steel pipe fastener purlin, the single formwork includes a transverse keel and a longitudinal keel, adjacent single formworks are fixedly connected by the double-jointed steel pipe fastener purlin, and positioning grooves and positioning protrusions are respectively provided at both ends of the combined formwork, so that two adjacent combined formworks can be positioned by bite; the double-jointed steel pipe fastener purlin includes a "7"-shaped bolt, a mountain-shaped clamp and a steel pipe, one end of the "7"-shaped bolt is fixed in the longitudinal keel, and the other end is threadedly connected with the mountain-shaped clamp, the steel pipe is fixed to the combined formwork clamp by the mountain-shaped clamp, and the steel pipe includes a first connecting pipe, a second connecting pipe for reinforcement in the prefabrication stage, and a third connecting pipe for reinforcement in the assembly stage. The utility model has the characteristics of convenient assembly, high rigidity, good stability, etc., is suitable for various concrete pouring constructions, can significantly improve construction efficiency and quality, and reduce costs and safety risks.

Description

A recyclable prefabricated and assembled concrete vertical component composite formwork

Technical Field

The utility model belongs to the technical field of building engineering, and in particular relates to a rotatable prefabricated and assembled concrete vertical component combined template.

Background Art

At present, the main methods of concrete vertical components are to directly install the formwork on site or to directly assemble the finished steel (or aluminum) profile formwork on site. The former often requires a large number of carpenters to directly install the formwork on site, and the construction period occupies the key route of structural construction. In addition, when encountering special construction nodes such as single-sided formwork, the construction period is often very long, which seriously affects the progress on site. The latter is easy to install, but is limited by the high cost and is difficult to be widely used in small and medium-sized projects or projects with non-uniform vertical component sizes.

After searching, the Chinese invention application document with the existing publication number CN202011465310.2 discloses a construction method for integrally lifting the mold, which includes: "Initially assembling the templates of the vertical component and surrounding them to form a hollow cavity to cast the bottom layer of the vertical component; fixing several adjacent fixed templates to form a combined template body; pouring concrete into the hollow cavity to cast the bottom layer of the vertical component; after the concrete strength is greater than the threshold, separating the splicing templates and the splicing templates and the combined template body; hoisting each combined template body one by one and hoisting it to a preset height, and assembling the two sides of each combined template body to the corresponding splicing templates on both sides of the combined template body; hoisting and pouring layer by layer until the casting of the vertical component is completed. The utility model fixes and combines multiple fixed templates of the vertical component to form a combined template body, which is then hoisted and assembled as a whole. The speed of template installation and removal is improved, and the construction efficiency of template installation and removal is effectively improved. However, in this construction method, any two adjacent fixed templates are only anchored by anchors to achieve a fastening connection, which will cause several problems: First, the construction of anchors is difficult, because they need to be accurately placed at the predetermined position of the template and need to be installed with specific tools, which may increase the difficulty and complexity of construction; second, the connection strength of anchors is limited. Due to the limited number and position of anchors, their connection strength may be limited. If a stronger connection strength is required, it may be necessary to increase the number of anchors or change their positions, which increases the difficulty of template splicing, and may even need to be made of high-strength materials to improve the connection strength, which may lead to an increase in material costs; and once the anchors are installed, it is difficult to repair and replace. If replacement or repair is required, the template or the surrounding concrete structure may need to be destroyed. Therefore, the connection method between templates in this construction method has certain limitations.

Utility Model Content

In order to solve the problems existing in the prior art mentioned above, the purpose of the utility model is to provide a recyclable prefabricated and assembled concrete vertical component combination formwork. The utility model has a simple structure and low labor and material costs; and it can greatly save the formwork installation period by prefabricating and assembling on site, nearly four times the efficiency, and effectively shorten the formwork period of the structural vertical components; at the same time, the prefabricated combination formwork can be hoisted and assembled by large machinery such as tower cranes, which greatly saves labor costs.

In order to achieve the above purpose and other related purposes, the utility model adopts the following technical solutions:

The utility model provides a rotatable prefabricated and assembled concrete vertical component combined formwork, comprising two single-frame formworks and double-joined steel pipe fastener surrounding purlins, wherein the single-frame formwork comprises a transverse keel located at the top and longitudinal keels evenly distributed on the lower end surface of the transverse keel, the longitudinal keels between adjacent single-frame formworks abut against each other, one end of the transverse keel on the combined formwork is provided with a positioning groove, and the other end is provided with a positioning protrusion matching the shape of the positioning groove, so that two adjacent combined formworks can be positioned by the engagement of the positioning groove and the positioning block; the double-joined steel pipe fasteners The purlin includes a steel pipe fastener and a steel pipe. The steel pipe fastener includes a "7"-shaped bolt and a mountain-shaped clamp. One end of the "7"-shaped bolt is fixed in the longitudinal keel, and the other end is threadedly connected to the mountain-shaped clamp. The "7"-shaped bolt and the mountain-shaped clamp are evenly spaced on the longitudinal keel. The steel pipe is fixed to the combined formwork clamp through the mountain-shaped clamp. The steel pipe includes a first connecting pipe with a length spanning the combined formwork, a second connecting pipe for reinforcing adjacent single formworks in the prefabrication stage, and a third connecting pipe for reinforcing adjacent combined formworks in the assembly stage.

As a preferred technical solution, the positioning groove and the positioning protrusion adopt a mortise and tenon structure.

As a preferred technical solution, the transverse keel is provided with a positioning baffle at the positioning groove, the positioning baffle is fixedly connected to the transverse keel through a bolt assembly, and the positioning baffle is a U-shaped plate with an opening facing downward.

As a further preferred technical solution, the "7"-shaped bolt also includes an extension end, so that the "7"-shaped bolt is F-shaped, and the inner side surface of the extension end can be clamped at a right angle to the longitudinal keel.

As described above, the utility model has the following beneficial effects:

(1) Save labor and construction time: The traditional vertical component formwork method is inefficient and the area completed per working day is limited, with an average of about 2-3 square meters per working day. The combined formwork structure of the utility model is simple, and rapid positioning can be achieved through positioning grooves and positioning protrusions. At the same time, the design of double-piece steel pipe fastener purlins can achieve efficient formwork installation in both the prefabrication stage and the assembly stage, so that 24 square meters of installation can be completed per working day in the prefabrication stage. Furthermore, in the assembly stage, through the cooperation of the tower crane, each worker can install 3 combined formworks per day, which is equivalent to an average of about 8 square meters per working day, thereby improving the efficiency by nearly four times and saving a lot of labor costs through efficiency improvement. In addition, under traditional processes, the formwork of vertical components will take up a long construction period; after using the combined formwork in the utility model, the prefabricated formwork does not take up an absolute construction period, and the installation efficiency of the prefabricated assembled formwork is improved by 4 times compared with the traditional formwork, which can greatly shorten the construction period of the vertical component formwork. By improving construction efficiency, the same number of workers can complete more work in a shorter time, thereby significantly shortening the overall construction period of the vertical component formwork.

(2) Improve quality stability and safety: Since the combined formwork in the utility model completes most of the formwork installation work in the prefabrication stage, it reduces the errors and deformations that may occur when pouring concrete on site; at the same time, through precise formwork positioning and fixing methods, it ensures that the poured concrete components are accurate in size and smooth in surface, thereby improving the overall quality stability. In addition, through standardized formwork installation methods, the unstable structural problems caused by human factors that may occur in traditional processes are reduced, and construction safety is improved; at the same time, the workload and work intensity of on-site construction personnel are reduced, and the risk of safety accidents caused by high-intensity labor is reduced.

(3) Reduce costs and promote environmental protection: High-efficiency construction technology means more efficient use of materials, labor and other resources, thereby reducing overall construction costs; at the same time, due to the shortened construction period and improved efficiency, the project can be put into use earlier, accelerating the return of funds and the investment return cycle; in addition, high-efficiency construction technology reduces the waste of materials and energy during the construction process, which is in line with the concept of green building and sustainable development, and reduces the impact and pollution on the environment during the construction process by shortening the construction period.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the combined structure of a single-frame formwork in the present invention.

FIG. 2 is a schematic structural diagram of a steel pipe fastener connection node in the present invention.

FIG. 3 is a schematic diagram of the assembly reinforcement structure between the combined formworks in the present invention.

Among them, the specific descriptions of the accompanying drawings are as follows: 1. Single-frame formwork; 21. Horizontal keel; 22. Longitudinal keel; 3. Double-piece steel pipe fastener purlin; 31. Steel pipe fastener; 32. First connecting pipe; 33. Second connecting pipe; 34. Third connecting pipe; 4. "7"-shaped bolt; 5. Mountain-shaped card; 6. Combined formwork; 61. Positioning groove; 62. Positioning protrusion.

DETAILED DESCRIPTION

In order to better understand the purpose, structure and function of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

In the description of the present invention, it should be noted that the positional relationships indicated by terms such as “longitudinal”, “lateral”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” cited in this specification are based on the positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

Example

As shown in FIG. 1 to FIG. 3 , this embodiment provides a rotatable prefabricated, assembled concrete vertical component composite formwork, including two single-frame formworks 1 and a double-jointed steel pipe fastener purlin 3 .

The single-frame formwork 1 includes a transverse keel 21 located at the top and longitudinal keels 22 evenly distributed on the lower end surface of the transverse keel 21. The longitudinal keels 22 between adjacent single-frame formworks 1 abut against each other. The transverse keel 21 on the combined formwork 6 is provided with a positioning groove 61 at one end and a positioning protrusion 62 matching the shape of the positioning groove 61 at the other end, so that two adjacent combined formworks 6 can be positioned by the engagement of the positioning groove 61 and the positioning block.

The double-piece steel pipe fastener purlin 3 includes a steel pipe fastener 31 and a steel pipe, the steel pipe fastener 31 includes a "7"-shaped bolt 4 and a mountain-shaped clamp 5, one end of the "7"-shaped bolt 4 is fixed in the longitudinal keel 22, and the other end is threadedly connected to the mountain-shaped clamp 5, the "7"-shaped bolt 4 and the mountain-shaped clamp 5 are evenly spaced and distributed on the longitudinal keel 22, the steel pipe is fixed to the combined formwork 6 by a clamp through the mountain-shaped clamp 5, and the steel pipe includes a first connecting pipe 32 with a length spanning the combined formwork 6, a second connecting pipe 33 for reinforcing adjacent single-frame formworks 1 in the prefabrication stage, and a third connecting pipe 34 for reinforcing adjacent combined formworks 6 in the assembly stage.

In actual work, in the prefabrication stage, the transverse keel 21 and the longitudinal keel 22 of the single-frame formwork 1 are prefabricated and assembled by using wooden squares as the main keel, and then the adjacent single-frame formworks 1 are reinforced by the first connecting tube 32 in cooperation with the steel pipe fastener 31, so that the adjacent single-frame formworks 1 form an integral combined formwork 6. At the same time, the second connecting tube 33 is used to further reinforce the combined formwork 6 system, and the pre-assembly is carried out in advance by utilizing the non-critical line construction period, which effectively reduces the labor cost and the critical line construction period; in the assembly stage, after the prefabrication and assembly of the combined formwork 6 is completed, the on-site assembly is carried out by using lifting and hoisting equipment, and the initial positioning of the combined formwork 6 is completed by the bite connection of the positioning groove 61 and the positioning protrusion 62 formed by the reserved edge of the transverse keel 21 during the prefabrication and assembly, and then the third connecting tube 34 is used for reinforcement to complete the production of the double-piece steel pipe fastener purlin 3, so that the combined formwork 6 forms a complete supporting force system, which can significantly increase the assembly speed and improve the construction efficiency while ensuring the stability of the formwork.

In this embodiment, both the transverse keel 21 and the longitudinal keel 22 are made of wooden planks. By reserving edges when the longitudinal keel 22 is evenly fixed to the transverse keel 21, a positioning groove 61 and a positioning protrusion 62 of the combined template 6 are formed. The production is simple and low-cost. In addition, since the third connecting tube 34 is fixedly connected by the steel pipe fastener 31 only in the assembly stage, the steel pipe fastener 31 without the third connecting tube 34 can be used as a lifting point to cooperate with the lifting and hoisting equipment to assist the assembly. At the same time, the length of the third connecting tube 34 used in the assembly stage is shorter than the length of the second connecting tube 33 in the prefabrication stage, which can effectively improve the construction efficiency of the assembly stage and save construction time.

In another embodiment, the specific shape, size and position of the positioning groove 61 and the positioning protrusion 62 can be designed according to actual needs, and a mortise and tenon structure can be used to achieve a more stable and reliable template fixation, but the production will be more time-consuming than the solution of reserving edge edges.

In another embodiment, the transverse keel 21 is provided with a positioning baffle at the positioning groove 61, and the positioning baffle is fixedly connected to the transverse keel 21 by a bolt assembly. The positioning baffle is a U-shaped plate with an opening facing downward, so that the positioning protrusion 62 is located in the positioning baffle, which can better and more quickly achieve the positioning between adjacent combined large templates.

In another embodiment, the "7"-shaped bolt 4 also includes an extended end, so that the "7"-shaped bolt 4 is F-shaped, and the inner side surface of the extended end can be clamped at a right angle to the longitudinal keel 22, thereby utilizing the characteristic that the extended end is always perpendicular to the longitudinal keel 22 to assist in determining the vertical placement of the steel pipe on the longitudinal keel 22.

In another embodiment, the horizontal force reinforcement of the combined formwork 6 can be carried out by means of diagonal bracing or the like, thereby achieving the same effect as the traditional formwork support.

Compared with traditional construction technology, the assembly method of the combined formwork 6 in the utility model not only improves construction efficiency and quality stability, reduces costs, shortens construction period, but also enhances construction safety and promotes environmental protection. These advantages will help promote the sustainable development and progress of the construction industry.

The above description is only a preferred embodiment of the utility model, and is not intended to limit the utility model. It is known to those skilled in the art that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the utility model.

Claims (4)

1. A rotatable prefabricated and assembled concrete vertical component composite formwork, characterized in that it comprises two single-frame formworks (1) and a double-jointed steel tube fastener purlin (3), wherein the single-frame formwork (1) comprises a transverse keel (21) located at the top and longitudinal keels (22) evenly distributed on the lower end surface of the transverse keel (21), adjacent single-frame formworks (1) are fixedly connected by the double-jointed steel tube fastener purlin (3), and the transverse keel (21) on the composite formwork (6) is provided with a positioning groove (61) at one end and a positioning protrusion (62) matching the shape of the positioning groove (61) at the other end, so that the adjacent two composite formworks (6) can be positioned by the engagement of the positioning groove (61) and the positioning protrusion (62); the double-jointed steel tube fastener purlin (3) comprises a transverse keel (21) located at the top and longitudinal keels (22) evenly distributed on the lower end surface of the transverse keel (21), adjacent single-frame formworks (1) are fixedly connected by the double-jointed steel tube fastener purlin (3), and the transverse keel (21) on the composite formwork (6) is provided with a positioning groove (61) at one end and a positioning protrusion (62) matching the shape of the positioning groove (61) at the other end, so that the adjacent two composite formworks (6) can be positioned by the engagement of the positioning groove (61) and the positioning protrusion (62); The purlin (3) comprises a steel pipe fastener (31) and a steel pipe, wherein the steel pipe fastener (31) comprises a "7"-shaped bolt (4) and a mountain-shaped clamp (5), wherein one end of the "7"-shaped bolt (4) is fixed in the longitudinal keel (22), and the other end is threadedly connected to the mountain-shaped clamp (5), wherein the "7"-shaped bolt (4) and the mountain-shaped clamp (5) are evenly spaced and distributed on the longitudinal keel (22), and the steel pipe is clamped to the combined formwork (6) through the mountain-shaped clamp (5), and the steel pipe comprises a first connecting pipe (32) having a length spanning the combined formwork (6), a second connecting pipe (33) for reinforcing adjacent single-frame formworks (1) in the prefabrication stage, and a third connecting pipe (34) for reinforcing adjacent combined formworks (6) in the assembly stage. 2. A rotatable prefabricated and assembled concrete vertical component composite formwork according to claim 1, characterized in that the positioning groove (61) and the positioning protrusion (62) adopt a mortise and tenon structure. 3. A rotatable prefabricated and assembled concrete vertical component composite formwork according to claim 1, characterized in that the transverse keel (21) is provided with a positioning baffle at the positioning groove (61), the positioning baffle is fixedly connected to the transverse keel (21) by a bolt assembly, and the positioning baffle is a U-shaped plate with an opening facing downward. 4. A rotatable prefabricated and assembled concrete vertical component composite formwork according to any one of claims 1 to 3, characterized in that the "7"-shaped bolt (4) also includes an extension end, so that the "7"-shaped bolt (4) is F-shaped, and the inner side surface of the extension end can be clamped at a right angle to the longitudinal keel (22).