Grouting stopping device and prefabricated box girder formwork

Abstract

The utility model provides a grout stopping device and a prefabricated box girder formwork, the grout stopping device comprises a flexible installation belt used for being fixed on the end face of the formwork, an installation groove formed in the length direction of the flexible installation belt, and a grout stopping strip embedded in the installation groove, the grout stopping device is installed along with the formwork in a unified mode, installation is not needed every time, and the installation efficiency is improved. The workload is reduced, the working efficiency is improved, and the template abutted seam compacting effect is improved. And the appearance quality is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building processing, and particularly relates to a grouting stopping device and a prefabricated box girder formwork. BACKGROUND

[0002] Many prefabricated box girders are needed in the construction process of expressways, but there are many types of prefabricated box girders. Currently, double-sided adhesive tape and foaming glue are often used to fill the gaps at the joint of the end formwork and the side formwork of the prefabricated box girder, but the filling density of this process is easily affected by human factors, which often leads to grouting leakage, affects the appearance of the prefabricated box girder, and results in poor appearance quality.

[0003] Therefore, those skilled in the art need to improve the existing grouting stopping device to overcome the above-mentioned defects. SUMMARY

[0004] The main purpose of the present application is to provide a grouting stopping device and a prefabricated box girder formwork, which is installed together with the formwork and does not need to be installed every time, thereby reducing the workload, improving the work efficiency, improving the formwork joint density, and effectively improving the appearance quality.

[0005] To achieve the above-mentioned purpose, in a first aspect, the present application provides a grouting stopping device and a prefabricated box girder formwork, which comprises a flexible mounting belt for fixing to the end face of the formwork, a mounting groove opened along the length direction of the flexible mounting belt, and a grouting stopping strip embedded in the mounting groove.

[0006] Optionally, the flexible mounting belt is a steel plate belt.

[0007] Optionally, the flexible mounting belt is welded and fixed to the end face of the formwork.

[0008] Optionally, the grouting stopping strip is a rubber grouting stopping strip.

[0009] Optionally, a limiting structure is arranged between the grouting stopping strip and the mounting groove.

[0010] Optionally, the limiting structure comprises a limiting groove opened on at least one side of the mounting groove and a limiting protrusion arranged at the bottom of the grouting stopping strip and matched with the limiting groove.

[0011] Optionally, the mounting groove is rectangular, the depth of the mounting groove is 3 mm, and the height of the grouting stopping strip extending out of the mounting groove is 5-10 mm.

[0012] Optionally, the limiting groove is arc-shaped or rectangular.

[0013] To achieve the above-mentioned purpose, in a second aspect, the present application provides a prefabricated box girder formwork, which comprises a box girder inner formwork, a box girder side formwork, and a box girder end formwork, and the end face of the box girder end formwork is provided with the above-mentioned grouting stopping device.

[0014] Optionally, the inner side and the outer side of the end face of the box girder end form are provided with the stopper device.

[0015] Compared with the prior art, the box girder end form and the prefabricated box girder formwork have the beneficial effects that firstly, the stopper structure is simple, can be uniformly installed with the formwork, is not prone to falling off, can be repeatedly installed, saves labor cost, and after the formwork is removed after the concrete pouring, the end part is checked for whether there is a concrete leakage phenomenon, and the stopper effect is remarkable. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, objects and advantages of this application become more apparent. The illustrative embodiment drawings of this application and the description thereof are used to explain this application, and do not constitute an improper limitation on this application. In the drawings:

[0017] Figure 1 is a schematic view of a stopper device (embodiment one);

[0018] Figure 2 is a schematic view of a stopper device (embodiment two);

[0019] Figure 3 is a schematic view of a stopper device (embodiment three);

[0020] Figure 4 is a schematic view of a prefabricated box girder.

[0021] Wherein: 1, box girder inner form; 2, box girder side form; 3, box girder end form; 4, stopper strip; 5, flexible mounting belt; 6, mounting groove; 7, limiting groove; 8, limiting protrusion. DETAILED DESCRIPTION

[0022] In order to enable personnel in the technical field to better understand the present application scheme, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should belong to the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and the above-described accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances to implement the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a list of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products or devices.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Also, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0026] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0028] Embodiment one:

[0029] As shown in Figure 1 A pulp stopping device, comprising a flexible mounting belt 5 for fixing to the end face of a formwork, a mounting groove 6 opened along the length direction of the flexible mounting belt 5, and a pulp stopping strip 4 embedded in the mounting groove 6.

[0030] To facilitate installation and extend service life, the flexible installation strip 5 is made of steel plate. The steel plate serves as the installation carrier for the grout stop strip 4. Since the end face of the precast box girder formwork is not a regular polygon, the steel plate not only has a certain rigidity but also allows for some deformation, thus adapting to the shape of the formwork end face. Furthermore, it has high strength and good wear resistance, which extends its service life. In addition, during installation, it can be fixed to the formwork by welding, which facilitates on-site construction.

[0031] In addition, the grout-stopping strip 4 is a rubber grout-stopping strip 4, that is, it is made of rubber material, which has good sealing performance, improves the grout-stopping effect, and has good toughness and strength, and can be reused multiple times.

[0032] Example 2:

[0033] like Figure 2 As shown, the difference from Embodiment 1 is that a limiting structure is provided between the grout-stopping strip 4 and the mounting groove 6. By providing the limiting structure, the grout-stopping strip 4 can be effectively prevented from detaching from the mounting groove 6 during the pouring process, thus affecting the grout-stopping effect. By providing the limiting structure, the grout-stopping strip 4 can be pulled out from the side after the demolding is completed.

[0034] In this embodiment, the limiting structure includes rectangular limiting grooves 7 formed on both sides of the mounting groove 6 and limiting protrusions 8 set at the bottom of the grout stop strip 4 that cooperate with the limiting grooves 7. Thus, the limiting grooves 7 and the mounting groove 6 themselves form a dovetail structure, which can effectively limit the detachment of the grout stop strip 4 during the pouring process. The mounting groove 6 is rectangular, the depth of the mounting groove 6 is 3mm, and the height of the grout stop strip 4 extending out of the mounting groove 6 is 5mm-10mm.

[0035] Example 3:

[0036] like Figure 3 As shown, the difference from Embodiment 2 is that the shape of the limiting groove 7 is not rectangular but arc-shaped, or it can be a rectangle with an arc-shaped chamfer. In this way, the wear of the grout-stopping strip 4 can be reduced during the installation and removal of the grout-stopping strip 4 from the installation groove 6, thereby extending its service life and ensuring the grout-stopping effect.

[0037] like Figure 4 As shown, a precast box girder formwork includes an inner box girder formwork 1, a side box girder formwork 2, and an end box girder formwork 3. The end face of the end box girder formwork 3 is provided with the aforementioned grout-stopping device, and the grout-stopping device is provided on both the inner and outer sides of the end face of the end box girder formwork 3.

[0038] Specific construction: in the precast box girder end formwork side, weld a groove steel plate belt, groove depth 3mm, then rectangular groove paste rubber stop strip 4, stop strip 4 outside 5mm-10mm, specifically stop strip 4 exposed size according to the specific specification of precast box girder is selected, prevent concrete leakage, concrete pouring after removing the template after removing the stop strip 4 end whole appearance check whether there is leakage phenomenon, stop strip effect is remarkable.

[0039] The above only for the preferred embodiments of the present application, and is not intended to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A flow check device, characterized in that The flexible mounting band is a steel plate band.

2. A device as claimed in claim 1, characterised in that: The flexible mounting band is welded to the end face of the formwork.

3. A device as claimed in claim 2, wherein: The flexible mounting band is welded to the end face of the formwork.

4. A device as claimed in claim 1, wherein: The rubber damming strip is provided with a limiting structure between the flexible mounting band and the mounting slot.

5. A device as claimed in claim 1, wherein: The limiting structure comprises a limiting slot provided on at least one side of the mounting slot and a limiting protrusion provided on the bottom of the damming strip and matched with the limiting slot.

6. A device as claimed in claim 5, wherein: The mounting slot is rectangular, the depth of the mounting slot is 3mm, and the height of the damming strip extending out of the mounting slot is 5mm-10mm.

7. A device as claimed in claim 6, wherein: The limiting slot is arc-shaped or rectangular.

8. A device as claimed in claim 6, wherein: The box girder end mold is provided with the damming device on the end face.

9. A precast box girder form, characterized by: The end face of the box girder end mold is provided with the damming device on the inner side and the outer side.

10. A precast box beam formwork as claimed in claim 9, wherein: ​

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