Variable-degree assembly type chamfering template

Abstract

The utility model provides a variable-degree assembly type chamfering template which comprises a plurality of vertically-arranged main back edges which are made of channel steel and arranged at intervals, the main back edges are symmetrically arranged on the left side and the right side, and the lower ends of the main back edges are obliquely connected with secondary back edges through hinges respectively. Steel formworks are welded to the sides, away from the groove-shaped structure, of the main back ridges and the auxiliary back ridges correspondingly, tensioning assemblies are arranged between the included angles of the main back ridges and the auxiliary back ridges, and the steel formworks on the two sides are fixed through split bolts. According to the formwork, the inclination angle of the secondary back ridge can be accurately controlled and the rigidity and strength of the secondary back ridge can be guaranteed by adjusting the two positioning nuts according to the actual site requirement, so that the requirement for multiple sizes of cast-in-place components is met, products can be combined at will, and the formwork can be repeatedly used in multiple projects and is large in turnover frequency and high in adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy engineering technology, specifically relating to a variable-degree prefabricated chamfer template. Background Technology

[0002] In the field of engineering construction, chamfered structures and chamfered formwork are widely used. In water conservancy and hydropower projects, chamfered formwork is used for cast-in-place components such as flood control walls, dam corbels, and gate control rooms. In building construction, chamfered formwork is mainly used for the steps of independent foundations, the connection between foundations and columns, the connection between pile foundations and caps, the internal corners of parapet walls, sunken one-time molding pits, and core tube cast-in-place components. In highway and municipal engineering, it is used for cast-in-place components of bridge substructures, tunnels, and box girders. Safe and reliable formwork fabrication and installation are essential for the successful casting of cast-in-place components. During the formwork fabrication and installation process, the processing and fastening of chamfered formwork are critical steps and also the weakest links. The strength and rigidity of chamfered formwork are difficult to meet requirements, and it is prone to significant buoyancy and air bubbles, easily leading to grout leakage, honeycomb pitting, bulging, and bursting. These areas are frequent sources of safety hazards and quality problems in the cast-in-place component formwork support and reinforcement system.

[0003] Currently, modular steel formwork is commonly used in the construction of concrete structures. For irregularly shaped structures, it is necessary to purchase standardized steel formwork. However, in actual use, there is a need to adjust the angle, and customized steel formwork is inconvenient to adjust. Secondly, it cannot be guaranteed to be reused when starting the next project after completing the previous one, which leads to waste of materials. Summary of the Invention

[0004] This utility model provides a variable-degree assembled chamfer template to solve the problems mentioned in the background art. The specific solution is as follows:

[0005] A variable-degree prefabricated chamfered template includes multiple vertically arranged main back ribs made of channel steel, which are spaced apart and symmetrically arranged on the left and right sides. The lower ends of the multiple main back ribs are respectively connected to secondary back ribs by hinges. Steel templates are welded to the side of the main back ribs and secondary back ribs on the same side away from the channel structure. A tensioning component is provided between the angles of the main back ribs and secondary back ribs. The steel templates on both sides are fixed together by tie bolts.

[0006] Furthermore, the two steel templates are sealed together by double-sided adhesive.

[0007] Furthermore, the tensioning assembly includes a fixing pin, a limiting groove, a tensioning screw, and a positioning nut. The fixing pin is horizontally fixed between the two side walls of the channel steel of the main back rib. The limiting groove is fixed to the secondary back rib. One end of the tensioning screw is rotatably mounted on the fixing pin through a pin sleeve, and the other end is located in the limiting groove. Positioning nuts are respectively matched on the tensioning screws on both sides of the limiting groove.

[0008] Furthermore, reinforcing blocks are fixedly connected between the two sides of the main back rib and the secondary back rib, and one end of the reinforcing block is rotatably connected to the main back rib by a shaft pin, and the other end is spot welded to the secondary back rib.

[0009] Furthermore, the main back rib is welded to the steel formwork at the intersection of the reinforcing bars.

[0010] Furthermore, two steel pipe diagonal braces are fixedly connected at intervals on the outer side of the main back rib.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model discloses a variable-degree prefabricated chamfered template. By setting a tensioning component and reinforcing blocks between the main back rib and the secondary back rib, the tilt angle of the secondary back rib can be precisely controlled by adjusting two positioning nuts according to the actual needs of the site, thus ensuring its rigidity and strength. This meets the needs of various sizes of cast-in-place components. The product can be freely combined and reused in multiple projects. It has a high number of reuses and strong adaptability. The two reinforcing blocks further ensure the rigidity and strength between the main back rib and the secondary back rib.

[0013] 2. The variable-degree prefabricated chamfered formwork of this utility model adopts prefabricated steel formwork that replaces wood with steel, which saves wood resources, replaces the wooden boards and square timber in the traditional formwork process, improves the service life of materials, is more environmentally friendly than traditional formwork, can reduce energy consumption, reduce environmental burden, can be recycled, and reduce waste.

[0014] 3. The variable-degree prefabricated chamfered formwork of this utility model has good seismic performance and prevents the formwork from floating during concrete pouring; it enhances the stability and load-bearing capacity of the formwork support system, ensures construction safety and project quality, reduces the occurrence of safety accidents, protects the lives of construction personnel, and the formwork structure is sturdy, safe and reliable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a side view of the present invention.

[0017] Figure 3 This is a schematic diagram of the connection of the tensioning component of this utility model.

[0018] Figure 4 This is a perspective view of the tensioning component of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Main back rib; 2. Secondary back rib; 3. Steel template; 4. Tensioning assembly; 401. Fixing pin; 402. Limiting groove; 403. Tensioning screw; 404. Positioning nut; 5. Tie bolt; 6. Double-sided adhesive; 7. Reinforcing block; 8. Steel bar; 9. Steel pipe diagonal brace; 10. Hinge. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] See Figure 1-4 A variable-degree prefabricated chamfered template includes multiple vertically arranged main back ribs 1 made of channel steel, spaced apart, with the main back ribs 1 symmetrically arranged on the left and right sides. The lower ends of the multiple main back ribs 1 are respectively inclinedly connected to secondary back ribs 2 via hinges 10. Steel templates 3 are welded to the side of the main back ribs 1 and secondary back ribs 2 on the same side away from the channel structure. A tensioning component 4 is provided between the included angle of the main back ribs 1 and secondary back ribs 2. The tensioning component 4 facilitates the adjustment of the angle between the main back ribs 1 and secondary back ribs 2 and the fixing after the angle adjustment. The steel templates 3 on both sides are fixed together by tie bolts 5. The connection of tie bolts 5 can further control the precise positioning and stability between the templates.

[0022] The preferred method is to seal the two steel templates 3 together with double-sided adhesive 6. The double-sided adhesive 6 ensures the quality of the joint between the two steel templates 3 and provides strong adaptability.

[0023] The preferred tensioning assembly 4 includes a fixing pin 401, a limiting groove 402, a tensioning screw 403, and a positioning nut 404. The fixing pin 401 is horizontally fixed between the two side walls of the channel steel of the main back rib 1. The limiting groove 402 is fixed to the secondary back rib 2. One end of the tensioning screw 403 is rotatably mounted on the fixing pin 401 through a pin sleeve, and the other end is located in the limiting groove 402. Positioning nuts 404 are respectively matched on the tensioning screws 403 on both sides of the limiting groove 402. When adjusting the angle between the main back rib 1 and the secondary back rib 2, the worker can manually loosen and tighten the positioning nuts 404 on both sides of the limiting groove 402. After the angle is adjusted, the positioning nuts 404 on both sides are tightened on both sides of the limiting groove 402 to complete the fixing work between the main back rib 1 and the secondary back rib 2.

[0024] Preferably, a reinforcing block 7 is fixedly connected between the two sides of the main back rib 1 and the secondary back rib 2. One end of the reinforcing block 7 is rotatably connected to the main back rib 1 by a shaft pin, and the other end is spot welded to the secondary back rib 2. The spot welded structure is easy to remove. The setting of the reinforcing block 7 is to further enhance the fixing strength and rigidity between the main back rib 1 and the secondary back rib 2. When it is necessary to adjust the angle between the main back rib 1 and the secondary back rib 2, the weld point between the reinforcing block 7 and the secondary back rib 2 is removed first using a tool.

[0025] The preferred main back rib 1 and the steel formwork 3 are welded to the steel formwork 3 at their intersections via reinforcing bars 8.

[0026] Two steel pipe diagonal braces 9 are fixedly connected at intervals on the outer side of the preferred main back rib 1. The setting of the steel pipe diagonal braces 9 enhances the stability and load-bearing capacity of the formwork support system, ensuring construction safety and project quality.

[0027] The angle adjustment method of this utility model is as follows: First, loosen all the positioning nuts 404 with a tool. Then, remove the weld points between the reinforcing block 7 and the secondary back rib 2 with a tool. Next, adjust the positioning nut 404 at the very end with a tool. Determine the required angle between the main back rib 1 and the secondary back rib 2 by adjusting the positioning nuts 404 on both sides of the limiting groove 402. After determining the angle, tighten the positioning nuts 404 on both sides of the limiting groove 402 onto the side walls on both sides of the limiting groove 402 with a tool. Then, fix the reinforcing blocks 7 on both sides of the secondary back rib 2 to the side walls of the secondary back rib 2 by spot welding. This completes the adjustment of the angle between the main back rib 1 and the secondary back rib 2. This operation is simple and fast. This template can meet the needs of various sizes of cast-in-place components. The product can be freely combined and reused in multiple projects. It has a high number of reuses, strong adaptability, and can be used in various engineering casting applications.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A variable-degree assembled chamfer template, characterized in that: It includes multiple vertically arranged main back ribs (1) made of channel steel, which are spaced apart. The main back ribs (1) are symmetrically arranged on the left and right sides. The lower ends of the multiple main back ribs (1) are respectively connected to secondary back ribs (2) by hinges (10). The main back ribs (1) and secondary back ribs (2) on the same side are respectively welded with steel templates (3) on the side away from the channel structure. A tensioning component (4) is provided between the angle between the main back ribs (1) and the secondary back ribs (2). The steel templates (3) on both sides are fixed together by tie bolts (5).

2. The variable-degree assembled chamfer template according to claim 1, characterized in that: The two steel templates (3) are bonded and sealed together with double-sided adhesive (6).

3. The variable-degree assembled chamfer template according to claim 1, characterized in that: The tensioning assembly (4) includes a fixing pin (401), a limiting groove (402), a tensioning screw (403), and a positioning nut (404). The fixing pin (401) is horizontally fixed between the two side walls of the channel steel of the main back rib (1). The limiting groove (402) is fixed on the secondary back rib (2). One end of the tensioning screw (403) is rotatably mounted on the fixing pin (401) through a pin sleeve, and the other end is located in the limiting groove (402). Positioning nuts (404) are respectively matched on the tensioning screws (403) on both sides of the limiting groove (402).

4. A variable-degree assembled chamfer template according to claim 1, characterized in that: A reinforcing block (7) is fixedly connected between the two sides of the main back rib (1) and the secondary back rib (2), and one end of the reinforcing block (7) is rotatably connected to the main back rib (1) by a shaft pin, and the other end is spot welded to the secondary back rib (2).

5. A variable-degree assembled chamfer template according to claim 1, characterized in that: The main back rib (1) and the steel formwork (3) are welded to the steel formwork (3) at their intersections via reinforcing bars (8).

6. A variable-degree assembled chamfer template according to claim 1, characterized in that: Two steel pipe diagonal braces (9) are fixedly connected at intervals on the outer side of the main back rib (1).

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