Prefabricated part connecting piece closed grouting section combined formwork

By combining steel formwork to adjust the width and angle, the problem of insufficient adaptability of wooden formwork was solved, achieving adaptability to multiple sizes and angles, and reducing construction costs and labor intensity.

CN224183339UActive Publication Date: 2026-05-01SHANGHAI ERSHIYE CONSTR CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ERSHIYE CONSTR CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In the current grouting section formwork process, wooden formwork is not very adaptable, making it difficult to meet the construction requirements of different sizes and angles, and it needs to be cut frequently, wasting materials and manpower.

Method used

A composite template composed of steel templates is used. The width, angle and height of the template can be adjusted by tie bolts and limit blocks to achieve adaptability to various sizes and angles, reducing cutting work.

Benefits of technology

It improves the adaptability of the template, reduces material waste and labor costs, and enhances construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a prefabricated part connecting piece closed grouting section combined formwork. The prefabricated part connecting piece closed grouting section combined formwork comprises two steel formworks which are oppositely arranged. Heightening formworks are arranged on the inner sides of the two steel formworks correspondingly, inserting holes are formed in the heightening formworks, the upper portions of the heightening formworks are located in the reserved long holes, the two ends of the lower portions of the heightening formworks are connected with the splicing plates through bolt assemblies correspondingly, each bolt assembly comprises a first bolt, one end of each first bolt is fixedly connected with the corresponding splicing plate, and the other end of each first bolt is fixedly connected with the corresponding splicing plate. The other end of the first bolt is in threaded connection with a limiting block, the end of the first bolt is inserted into the inserting hole, and the outer side face of the heightening formwork is supported through the limiting block. And the splice plates and the heightening templates are formed by splicing a plurality of steel plates. The width between the two heightening formworks and the angle and the height of the heightening formworks can be adjusted, the construction requirements of sealing grouting sections of prefabricated part connecting pieces with different sizes and angles can be met, and adaptability is high.
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Description

A precast component connector closed grouting section combined formwork Technical Field

[0001] This utility model belongs to the field of building construction formwork technology, and in particular relates to a prefabricated component connector closed grouting section combined formwork. Background Technology

[0002] Precast components primarily embody factory-based and customized construction, significantly improving construction efficiency and effectively controlling quality. In terms of energy conservation and environmental protection, they reduce dust, noise, and construction waste generation. Regarding safety, they reduce the need for scaffolding, thus minimizing the occurrence of safety accidents. As shown in Figure 1, the precast component connector grouting section refers to the process of connecting two precast components 100 by using connectors such as sleeves 200 to connect the reinforcing bars 300 of the precast components. A grouting section is then formed between the two precast components through formwork and grouting, ensuring a firm connection between the reinforcing bars, sleeves, and precast components. This enhances the overall integrity and stability of the structure while preventing the infiltration of moisture, gas, or harmful substances, thus avoiding corrosion of the reinforcing bars.

[0003] The grouting section of the precast component connector is usually consistent with the length, width, and height of the precast component (such as a trapezoidal precast beam component), requiring various sizes and angles. Currently, most grouting section formwork uses wooden formwork, and different sizes of wooden formwork need to be cut for different grouting sections. Wooden formwork has poor adaptability, and the formwork angle is also inconvenient to control. Summary of the Invention

[0004] The main purpose of this utility model is to propose a prefabricated component connector closed grouting section combination template, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A precast component connector closed grouting section combined template includes two steel templates arranged opposite each other. Each steel template includes a middle plate, a splicing plate is fixed to the bottom of the middle plate, an ear plate is fixed to the top of the outer end of the middle plate, and a reserved elongated hole is opened at the inner end. The ear plates of the two steel templates are connected by several tie bolts.

[0007] The inner sides of the two steel templates are respectively provided with heightening templates. The heightening templates are provided with insertion holes. The upper part of the heightening template is located in the reserved elongated hole, and the lower two ends are respectively connected to the splicing plate by bolt assemblies. The bolt assembly includes a first bolt. One end of the first bolt is fixedly connected to the splicing plate, and the other end of the first bolt is threadedly connected to a limit block. Its end is inserted into the insertion hole, and the limit block supports the outer side of the heightening template.

[0008] Both the splicing plate and the heightening template are made of multiple steel plates spliced ​​together. A connecting plate is provided at the joint of adjacent steel plates, and the two ends of the connecting plate are respectively connected to the steel plate by a second bolt.

[0009] Preferably, the limiting block consists of two nuts.

[0010] Preferably, the insertion hole is a non-threaded blind hole opened from the outer side of the raised template, and the non-threaded blind hole is larger than the end of the first bolt.

[0011] Preferably, the first bolt passes through the splicing plate and is fixedly connected to the splicing plate by its bolt head and a nut.

[0012] Preferably, the connecting plate is located on the outside of the steel plate, and the outer surface of the steel plate has a threaded blind hole adapted to the second bolt.

[0013] This utility model provides a precast component connector closed grouting section combined template, which has the following beneficial effects:

[0014] This utility model's combined template allows adjustment of the width between two steel templates via several tie bolts, thereby adjusting the width between two raised templates. The angle of the raised template can be adjusted by moving the left and right positions of the limiting blocks. Both the splicing plate and the raised template are composed of multiple steel plates spliced ​​together. By splicing different numbers of steel plates, the height of the splicing plate and the raised template can be adjusted. Therefore, the width between the two raised templates, the angle of the raised template, and the height can all be adjusted. It can adapt to the construction requirements of the grouting section of precast component connectors of different sizes and angles, has strong adaptability, and can be reused, reducing template replacement and effectively reducing the cost of easily consumable materials. At the same time, it also saves cutting work, saving time and effort. Attached Figure Description

[0015] Figure 1 is a structural schematic diagram of the closed grouting section of the prefabricated component connector of this utility model;

[0016] Figure 2 is a structural schematic diagram of the prefabricated component connector closed grouting section combined template of this utility model;

[0017] Figure 3 is a structural schematic diagram of the steel template of this utility model;

[0018] Figure 4 is a schematic diagram of the connection between the heightened template and the splicing plate of this utility model;

[0019] Figure 5 is a schematic diagram of the assembly of the heightened template and splicing plate of this utility model.

[0020] In the picture:

[0021] 100. Precast component; 200. Sleeve; 300. Reinforcing bar;

[0022] 1. Steel formwork; 11. Middle plate; 12. Splicing plate; 13. Ear plate; 14. Reserved elongated hole; 2. Tie bolt; 3. Heightened formwork; 31. Insertion hole; 4. Bolt assembly; 41. First bolt; 42. Limiting block; 5. Steel plate; 51. Threaded blind hole; 6. Connecting plate; 7. Second bolt. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to 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.

[0026] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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; 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.

[0027] Example

[0028] Referring to Figures 2 and 3, a precast component connector closed grouting section combined template includes two steel templates 1 arranged opposite each other. Each steel template 1 includes a middle plate 11, and a splicing plate 12 is fixed to the bottom of the middle plate 11. An ear plate 13 is fixed to the top of the outer end of the middle plate 11, and a reserved elongated hole 14 is opened at the inner end. The ear plates 13 of the two steel templates 1 are connected by several tie bolts 2. The width between the two steel templates 1 can be adjusted by the tie bolts 2.

[0029] Referring to Figures 2 and 4, two steel templates 1 are respectively provided with raised templates 3 on their inner sides. The raised templates 3 are provided with insertion holes 31. The upper part of the raised templates 3 is located in the reserved elongated hole 14. The reserved elongated hole 14 limits the upper part of the raised templates 3 to a certain extent, but does not affect the rotation of the lower part of the raised templates 3. The two ends of the lower part of the raised templates 3 are respectively connected to the splicing plate 12 by bolt assemblies 4. The bolt assembly 4 includes a first bolt 41. One end of the first bolt 41 is fixedly connected to the splicing plate 12. The other end of the first bolt 41 is threadedly connected to a limit block 42, and its end is inserted into the insertion hole 31. The limit block 42 supports the outer side of the raised templates 3. The angle of the raised templates 3 can be adjusted by moving the left and right positions of the limit block 42. It should be understood that the side of the raised templates 3 that is close to the splicing plate 12 is the outer side, and the side that is in contact with the grouting material is the inner side.

[0030] Referring to Figure 5, both the splicing plate 12 and the heightening template 3 are spliced ​​together from multiple steel plates 5. A connecting plate 6 is provided at the connection point of adjacent steel plates 5. The two ends of the connecting plate 6 are respectively connected to the steel plates 5 by second bolts 7. The height of the splicing plate 12 and the heightening template 3 can be adjusted by splicing different numbers of steel plates 5.

[0031] In this invention, grout is filled between two raised templates 3 during the pouring of the closed grouting section of precast component connectors. The combined template of this invention allows adjustment of the width between the two steel templates 1 via several tie bolts 2, thereby adjusting the width between the two raised templates 3. The angle of the raised templates 3 can be adjusted by moving the left and right positions of the limiting block 42. Both the splicing plate 12 and the raised templates 3 are composed of multiple steel plates 5. By splicing different numbers of steel plates 5, the height of the splicing plate 12 and the raised templates 3 can be adjusted. Therefore, the width between the two raised templates 3, the angle of the raised templates 3, and the height can all be adjusted. This allows it to adapt to the construction requirements of closed grouting sections of precast component connectors of different sizes and angles, exhibiting strong adaptability. Furthermore, it can be reused, reducing template replacement and effectively lowering the cost of easily consumable materials. It also eliminates the need for cutting work, saving time and effort.

[0032] In one specific implementation, referring to FIG4, the limiting block 42 consists of two nuts, which can move left and right on the first bolt 41, and can also be tightened together to fix it and prevent loosening.

[0033] In one specific implementation, the insertion hole 31 is a non-threaded blind hole opened from the outer side of the raised template 3 to ensure the integrity of the inner side of the raised template 3, prevent grout leakage and facilitate demolding. The non-threaded blind hole is larger than the end of the first bolt 41, providing sufficient space for the angle adjustment of the raised template 3.

[0034] In one specific implementation, a method for fixing a first bolt 41 to a splicing plate 12 is provided. The first bolt 41 passes through the splicing plate 12 and is fixedly connected to the splicing plate 12 by its bolt head and a nut.

[0035] In one specific implementation, referring to FIG5, the connecting plate 6 is located on the outside of the steel plate 5, and the outer surface of the steel plate 5 is provided with a threaded blind hole 51 adapted to the second bolt 7 to prevent the second bolt 7 from passing through the steel plate 5, causing grout leakage and affecting demolding.

[0036] In one specific implementation, the outer side of the splicing panel 12 is supported by timber and diagonal braces.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A precast component connector closed grouting section combined formwork, characterized in that: The system includes two steel templates arranged opposite each other. Each steel template includes a central plate with a splicing plate fixed to its bottom. An ear plate is fixed to the top of the outer end of the central plate, and a pre-drilled elongated hole is provided at the inner end. The ear plates of the two steel templates are connected by several tie bolts. Elevation templates are respectively provided on the inner sides of the two steel templates. Each elevation template has an insertion hole. The upper part of the elevation template is located in the pre-drilled elongated hole, and both lower ends are connected to the splicing plate via bolt assemblies. Each bolt assembly includes a first bolt, one end of which is fixedly connected to the splicing plate, and the other end of which is threadedly connected to a limit block and inserted into the insertion hole, supporting the outer surface of the elevation template through the limit block. Both the splicing plate and the elevation template are composed of multiple steel plates spliced ​​together. A connecting plate is provided at the joint of adjacent steel plates, and both ends of the connecting plate are connected to the steel plate via second bolts.

2. The precast component connector closed grouting section combined template according to claim 1, characterized in that: The limiting block consists of two nuts.

3. The precast component connector closed grouting section combined template according to claim 1, characterized in that: The insertion hole is a non-threaded blind hole opened from the outer side of the raised template, and the non-threaded blind hole is larger than the end of the first bolt.

4. The precast component connector closed grouting section combined formwork according to claim 1, characterized in that: The first bolt passes through the splicing plate and is fixedly connected to the splicing plate by its bolt head and a nut.

5. A precast component connector closed grouting section combined formwork according to claim 1, characterized in that: The connecting plate is located on the outside of the steel plate, and a threaded blind hole adapted to the second bolt is provided on the outer surface of the steel plate.