Temporary cleaning structure and cleaning method of beam bottom formwork

By reserving openable and closable cleaning holes on the beam bottom formwork and using rotating parts and high-pressure water guns for flushing, the problem of difficult cleaning of garbage and rust on the beam and slab bottom formwork is solved, achieving efficient cleaning and quality improvement.

CN117266561BActive Publication Date: 2025-09-19CHINA CONSTR EIGHTH BUREAU RAIL TRANSIT CONSTR CO LTD
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Patent Information

Application Number
CN202311448497.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-02
Publication Date
2025-09-19
Estimated Expiration
2043-11-02

AI Technical Summary

Technical Problem

In the prior art, it is difficult to clean the garbage and rust on the bottom formwork of the beam slab, especially in large-scale construction, which is costly and difficult to control the quality.

Method used

A cleaning hole that can be opened and closed is reserved on the bottom template, and the second side template connected by the rotating part can be rotated. Combined with high-pressure water gun flushing, the cleaning hole is used for wastewater outflow. The installation mold is reset after sealing to clean garbage and rust.

Benefits of technology

Effectively remove garbage, wood chips and rust from the bottom of beams and slabs, reduce the adhesion between wooden formwork and concrete, improve surface quality and save post-processing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a temporary cleaning structure and cleaning method for a beam bottom formwork. The temporary cleaning structure includes a bottom formwork for supporting beam casting, and formwork supports located at both ends of the bottom formwork and for fixing the bottom formwork. The bottom formwork includes a main formwork, and a formwork assembly located at the edge of the main formwork for fixing to the formwork support. The formwork assembly includes a first side formwork fixed to the formwork support, a second side formwork rotatably connected to the main formwork, and a cleaning hole located between the first side formwork and the second side formwork. The cleaning hole is blocked with a mounting formwork, and the mounting formwork is detachably mounted between the first side formwork and the second side formwork. The present invention solves the technical problem in the prior art that garbage and rust on the beam and slab bottom formwork are difficult to clean. At the same time, water acts as a lubricant to separate the formwork from the concrete, reducing the adhesion between the wooden formwork and the concrete, avoiding concrete defects when the formwork is removed, and improving the physical surface quality of the beam and slab bottom surface after the formwork is removed, while saving the cost of subsequent polishing and other treatments.
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Description

Technical Field

[0001] The present invention relates to the field of building construction, and in particular to a temporary cleaning structure and a cleaning method for a beam bottom formwork. Background Art

[0002] In construction projects, beam-slab construction, due to its large surface area and the long construction period of individual units, can easily lead to appearance defects on the bottom of the beams and slabs after formwork removal, failing to meet regulatory requirements. Therefore, the appearance quality of the bottom of the beams and slabs after formwork removal is particularly important. During beam-slab construction, large amounts of sawdust and debris generated by cutting wooden formwork can enter the beam bottom. Weather and other factors can also cause the beam bottom membrane to corrode and contaminate the beam reinforcement. Trash and other debris on the beam and slab bottoms are typically removed using vacuum cleaners. This method involves vacuuming debris after the rebar formwork is completed and before concrete is poured. While this method is effective for removing debris, sawdust, and dust, it cannot completely remove rust from the sides, bottoms, and slabs. Furthermore, vacuum cleaners are difficult to operate and expensive, making them unsuitable for large-scale beam-slab construction. The treatment effect is poor and has certain limitations. Furthermore, the cost is high, quality control is difficult, and the applicability is limited, requiring significant labor and financial resources to treat large areas. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a temporary cleaning structure and cleaning method for the beam bottom formwork, which solves the technical problem that garbage and rust on the beam bottom formwork are difficult to clean in the prior art.

[0004] In the first aspect, the present invention discloses a temporary cleaning structure for a beam bottom formwork, comprising a bottom formwork for supporting beam casting, and formwork supports located at both ends of the bottom formwork and for fixing the bottom formwork, the bottom formwork comprising a main formwork, and a formwork assembly located at the edge of the main formwork for fixing to the formwork support, the formwork assembly comprising a first side formwork fixed to the formwork support, a second side formwork rotatably connected to the main formwork, and a cleaning hole located between the first side formwork and the second side formwork, the cleaning hole being blocked with an installation formwork, and the installation formwork being detachably installed between the first side formwork and the second side formwork.

[0005] The temporary cleaning structure of the beam bottom formwork of the present invention is further improved in that the second side formwork and the main formwork are rotatably connected via a rotating member.

[0006] The temporary cleaning structure of the beam bottom formwork of the present invention is further improved in that the rotating member is a hinge, and the hinge is installed on the upper surface of the second side formwork and the main formwork.

[0007] A further improvement of the temporary cleaning structure of the beam bottom formwork of the present invention is that the width of the installation formwork is the same as the width of the support beam.

[0008] The temporary cleaning structure of the beam bottom formwork of the present invention is further improved in that the length of the installation formwork is no more than 30 cm.

[0009] In a second aspect, the present invention further provides a method for cleaning the temporary structure of the beam bottom formwork as described above, comprising the following steps:

[0010] Rotate the second side mold upward to form a space for accommodating the installation mold below the second side mold;

[0011] The installation mold is removed and moved under the second side mold to expose the cleaning hole;

[0012] Rinse and clean the bottom template, and allow the waste water after flushing and cleaning to flow away from the cleaning hole;

[0013] Move the installation mold plug to the cleaning hole position, and rotate the second side mold to be flush with the first side mold;

[0014] The installation mold is detachably installed between the first side mold and the second side mold.

[0015] The temporary cleaning method for the beam bottom formwork of the present invention is further improved in that when the second side formwork is rotated upward, the second side formwork is rotated upward relative to the main formwork by a rotating member.

[0016] Compared with existing technologies, the present invention has a positive and significant effect. By preserving an openable cleaning hole in the bottom formwork, the present invention solves the technical problem of the existing technology that garbage and rust on the bottom formwork of beams and slabs are difficult to clean. The present invention can effectively clean garbage, wood chips, rust, and other debris from the bottom beams, sides, and slab formwork. At the same time, water acts as a lubricant to separate the formwork from the concrete, reducing adhesion between the wooden formwork and concrete, avoiding concrete defects during demolding, and improving the physical surface quality of the bottom surface of the beams and slabs after demolding. It also saves the cost of subsequent polishing and other treatments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a longitudinal sectional view of the temporary cleaning structure of the beam bottom formwork of the present invention.

[0019] Figure 2 This is a longitudinal sectional view of the temporary cleaning structure of the beam bottom template of the present invention when the cleaning hole is exposed. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1 and Figure 2 As shown, the present invention provides a temporary cleaning structure for a beam bottom formwork, comprising a bottom formwork for supporting beam casting, and formwork supports 1 located at both ends of the bottom formwork for securing the bottom formwork. The bottom formwork comprises a main formwork 2, and a formwork assembly located at the edge of the main formwork 2 for securing to the formwork support 1. The formwork assembly comprises a first side formwork 3 secured to the formwork support 1, a second side formwork 4 rotatably connected to the main formwork 2, and a cleaning hole 6 located between the first side formwork 3 and the second side formwork 4. The cleaning hole 6 is blocked by a mounting formwork 5, which is detachably mounted between the first side formwork 3 and the second side formwork 4. In this embodiment, the bottom formwork is shaped into a rectangle, and the formwork assemblies are located at both ends. Figure 1 and Figure 2 Each of these diagrams shows a longitudinal cross-section of the support beam formwork, with the longitudinal direction of the support beam formwork aligning with the axial direction of the support beam. The diagram shows the end portion of the support beam bottom formwork assembly. The present invention utilizes water flushing, significantly reducing the cost of vacuum cleaning. It can completely remove rust from the formwork, is more convenient to operate, and is suitable for large-area beam and slab construction.

[0022] Preferably, the second side mold 4 is rotatably connected to the main mold 2 via a rotating member. The rotating member ensures that the second side mold 4 can rotate normally without being separated from the main mold 2, so that the second side mold 4 can return to its original position when needed, thereby avoiding the need for multiple position correction operations on the second side mold 4, reducing the number of operation steps, and improving construction efficiency.

[0023] Preferably, the rotating member is a hinge, which is mounted on the upper surface of the second side mold 4 and the main mold 2. The hinge is a commonly used one-way rotating member, which is simple to make and low in cost.

[0024] Preferably, the width of the installation mold 5 is the same as the width of the support beam, so as to facilitate the installation and removal of the installation mold 5 as a whole without the need to cut additionally on the original template to form the installation mold 5.

[0025] Preferably, the length of the installation mold 5 is not greater than 30 cm to avoid affecting the stability of the bottom mold as a whole. In this embodiment, the length of the installation mold 5 is 30 cm.

[0026] On the other hand, the present invention also provides a cleaning method using the temporary structure of the beam bottom formwork as described above, comprising the following steps:

[0027] Rotate the second side mold 4 upwards to form a space for accommodating the installation mold 5 below the second side mold 4;

[0028] The installation mold 5 is removed and moved under the second side mold 4 to expose the cleaning hole 6;

[0029] Rinse and clean the bottom template, and allow the waste water after flushing and cleaning to flow away from the cleaning hole 6;

[0030] Move the installation mold 5 to the position of the cleaning hole 6, and rotate the second side mold 4 to be flush with the first side mold 3;

[0031] The mounting mold 5 is detachably mounted between the first side mold 3 and the second side mold 4 .

[0032] Preferably, when the second side mold 4 is rotated upward, the second side mold 4 is rotated upward relative to the main mold 2 by a rotating member.

[0033] Before pouring the beams and slabs, first install the bottom formwork at the bottom of the supporting beam and open the cleaning hole 6, then tie the supporting beam reinforcement, install the supporting beam side formwork and the bottom formwork of the floor slab, then tie the floor slab reinforcement, and then use a high-pressure water gun to flush the formwork. After flushing, seal the cleaning hole 6, and finally pour concrete on the supporting beam and floor slab.

[0034] Specifically, when installing the support beam bottom formwork, a mounting formwork 5 with the same width as the beam and 30 cm long is set at the bottom of each beam. The second side formwork 4 is rotated and pried up, and the mounting formwork 5 is placed under the second side formwork 4 to expose the cleaning hole 6, and then the support beam reinforcement binding and other processes are carried out. After the reinforcement binding is completed, use a high-pressure water gun to rinse the bottom of the slab, the bottom of the beam and the side of the beam. Garbage, wood chips, rust and other debris flow from the floor slab bottom formwork into the support beam bottom formwork, and then flow from the support beam bottom formwork into the cleaning hole 6, thereby achieving the effect of thoroughly cleaning the formwork. After the cleaning is completed, the support beam reinforcement is slightly pried up, and the temporary cleaning hole 6 is restored to the blockage, that is, the mounting formwork 5 is withdrawn from the bottom of the second side formwork 4 to its original position. Then the concrete can be poured.

[0035] This invention addresses the existing technical problem of difficulty cleaning trash and rust from beam and slab bottom formwork by preserving an openable cleaning hole in the bottom formwork. This invention effectively cleans debris, wood chips, rust, and other debris from the beam bottom, beam sides, and slab bottom formwork. Water acts as a lubricant to separate the formwork from the concrete, reducing adhesion between the wood formwork and concrete, preventing concrete defects during formwork removal, and improving the surface quality of the beam and slab bottom surface after formwork removal, while also saving costs for subsequent polishing and other treatments.

[0036] The parts not mentioned in the present invention are the same as the existing technology or can be implemented by using the existing technology. The above description is only the preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as the preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A cleaning method using a temporary cleaning structure for a beam bottom formwork, characterized in that: The temporary cleaning structure of the bottom formwork of the beam includes a bottom formwork for supporting the pouring of the beam, and formwork supports located at both ends of the bottom formwork and for fixing the bottom formwork, the bottom formwork includes a main formwork, and a formwork assembly located at the edge of the main formwork and used to be fixed to the formwork supports, the formwork assembly includes a first side formwork fixed to the formwork support, a second side formwork rotatably connected to the main formwork, and a cleaning hole located between the first side formwork and the second side formwork, the cleaning hole being blocked by a mounting formwork, and the mounting formwork being detachably mounted between the first side formwork and the second side formwork; The second side mold is rotatably connected to the main mold via a rotating member; The rotating member is a hinge, and the hinge is installed on the upper surface of the second side mold and the main mold; The cleaning method comprises the following steps: Rotate the second side mold upward to form a space for accommodating the installation mold below the second side mold; Remove the installation mold and move it under the second side mold to expose the cleaning hole; Rinse and clean the bottom template, and allow the waste water after rinsing and cleaning to flow away from the cleaning hole; Move the mounting mold plug to the cleaning hole position, and rotate the second side mold to be flush with the first side mold; Removably installing the mounting mold between the first side mold and the second side mold; When the second side mold is rotated upward, the second side mold is rotated upward relative to the main mold through the rotating member.

2. The cleaning method using the temporary cleaning structure of the beam bottom formwork according to claim 1 is characterized in that: The width of the installation template is the same as the width of the support beam.

3. The cleaning method using the temporary cleaning structure of the beam bottom formwork according to claim 1 is characterized in that: The length of the installation mold is not greater than 30 cm.

Citation Information

Patent Citations

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