Auxiliary device for intercepting concrete in core area of beam column
By using beam side formwork and beam bottom formwork in conjunction with vertical screw supports for quick-closing wire mesh, the problem of long construction time and high cost of concrete interception in the core area of beams and columns was solved, achieving fast, low-cost, and high-quality construction results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHTH BUREAU TIANJIN CONSTR ENG CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, quick-closing steel wire mesh is commonly used for concrete interception in the core area of beams and columns. However, it has low rigidity and is easily damaged. Airbags are expensive and easily damaged, resulting in long construction time and high costs, making it difficult to meet the requirements of high-quality construction.
The beam side formwork and beam bottom formwork are used in conjunction with vertical screws and fixing nuts. The position of the vertical screws is adjusted by flat slides and U-shaped slides to support the quick-closing wire mesh, increase rigidity, avoid concrete impact, and is easy to operate and reusable.
It achieves rapid and effective concrete interception, avoids mixing of different grades of concrete, ensures construction quality, reduces costs, and meets the requirements of green construction.
Smart Images
Figure CN224244418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction equipment technology, and in particular to an auxiliary device for intercepting concrete in the core area of beams and columns. Background Technology
[0002] In modern construction, during the construction phase of frame structures, due to the different load-bearing functions of frame columns and beams, the concrete strength grade requirement for frame columns in the core beam-column area is higher than that for beams. For structures with high structural safety requirements, the concrete strength grade of frame columns differs from that of beams by more than two grades. Furthermore, when beams and columns are poured simultaneously, the concrete in this area needs to be intercepted to ensure that the concrete strength grade at the top of the frame column meets design requirements.
[0003] Conventional methods for intercepting concrete in this area use quick-closing wire mesh, but this type of mesh has low rigidity and is easily damaged during concrete pouring, resulting in mediocre interception effectiveness and time-consuming construction. Currently, airbags are used as a newer material, but they are expensive, easily damaged, have low turnover rates, and are costly. Therefore, to solve the above technical problems, this application provides an auxiliary device for concrete interception in the core area of beams and columns. Utility Model Content
[0004] The purpose of this utility model is to provide an auxiliary device for intercepting concrete in the core area of beams and columns. This device is convenient and quick to operate, has a fast construction speed, and a good interception effect. It effectively avoids the mixing of concrete of different grades, ensuring construction quality. At the same time, the auxiliary device can be removed before the concrete initially sets and can be reused. It is low in cost and meets the requirements of green construction.
[0005] To achieve the above objectives, this utility model provides an auxiliary device for intercepting concrete in the core area of a beam and column, including beam side molds set on both sides of the beam and column and beam bottom molds set at the bottom of the beam and column. A flat sliding groove is provided at the top of the beam side mold, and a U-shaped sliding groove is provided on the surface of the beam bottom mold. Several vertical screws are set between the flat sliding groove and the U-shaped sliding groove, and the vertical screws are parallel to the beam side molds.
[0006] Furthermore, the flat plate slide is rectangular, and a rectangular through hole is provided at the center of the flat plate slide to allow the vertical screw to pass through.
[0007] The width of the flat sliding groove is not less than 50mm, and the width of the central through hole is slightly wider than the diameter of the vertical screw. It is made of metal and fixed to the top of the beam side formwork using adhesive. Simultaneously, the vertical screw can be moved along the direction of the through hole to adjust its position, effectively avoiding conflict with the beam reinforcement.
[0008] Furthermore, the U-shaped groove is provided with an upward-facing U-shaped recess, and the bottom of the vertical screw is located inside the U-shaped recess.
[0009] The U-shaped groove is slightly wider on the inside than the diameter of the vertical screw. It is made of rigid plastic and is fixed to the surface of the beam bottom formwork with adhesive. The vertical screw can be adjusted in position along the direction of the U-shaped groove, which can effectively avoid conflict with the beam reinforcement.
[0010] Furthermore, the upper end of the vertical screw is provided with a thread, and the fixing nut is connected to the vertical screw through the thread. The lower end of the vertical screw is not provided with a thread. The upper end of the vertical screw is set inside the flat plate slide groove, and the lower end of the vertical screw is set inside the U-shaped slide groove.
[0011] The vertical screw is a cylindrical device with a diameter of not less than φ16. It is vertically fixed to the back of the quick-closing wire mesh used to intercept concrete. It is used to support the quick-closing wire mesh, increase the rigidity of the interception mesh, and prevent it from being damaged by concrete impact.
[0012] The fixing nut is cylindrical in shape with a hollow, threaded interior. It is made of metal, secured with adhesive, and connects to the threaded portion at the top of the vertical screw. This secures the vertical screw and prevents it from moving laterally along the beam.
[0013] Furthermore, the beam side mold is made of rectangular flat wooden material for concrete molding and to determine the positions of both sides of the beam; the beam bottom mold is made of rectangular flat wooden material for concrete molding and to determine the bottom position of the beam.
[0014] Furthermore, several of the vertical screws are provided with quick-closing wire mesh on their surfaces.
[0015] Therefore, this utility model provides a concrete interception auxiliary device for the core area of beams and columns with the above-mentioned structure. It assists in the interception of concrete in the core area of beams and columns, is easy and quick to operate, has a fast construction speed, and a good interception effect. It effectively avoids the mixing of concrete of different grades, ensures construction quality, and the interception auxiliary device can be removed before the concrete initially sets and can be reused. It has low cost and meets the requirements of green construction.
[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0017] Figure 1 This is a front view of the overall structure of an embodiment of the concrete interception auxiliary device for the core area of a beam and column according to this utility model;
[0018] Figure 2 This is a schematic diagram of the vertical screw connection of an embodiment of the concrete interception auxiliary device for the core area of a beam and column according to the present invention;
[0019] Figure 3 This is a schematic diagram of the quick-closing wire mesh connection of an embodiment of the concrete interception auxiliary device for the core area of beams and columns according to this utility model;
[0020] Figure 4 This is a top view of the overall structure of an embodiment of the concrete interception auxiliary device for the core area of a beam and column according to this utility model;
[0021] Figure 5 This is a schematic diagram of a flat chute, representing an embodiment of an auxiliary device for intercepting concrete in the core area of a beam-column structure according to the present invention.
[0022] Figure 6 This is a schematic diagram of a U-shaped chute, representing an embodiment of an auxiliary device for intercepting concrete in the core area of a beam-column structure according to the present invention.
[0023] Figure 7 This is a side sectional view of the concrete interception auxiliary device for the core area of a beam and column according to this utility model during use;
[0024] Figure 8 for Figure 7 Enlarged view of point A in the middle;
[0025] Figure 9 This is a top view of the concrete interception auxiliary device for the core area of a beam and column according to this utility model during use;
[0026] Figure 10 for Figure 9 Enlarged view of section B in the middle.
[0027] Figure Labels
[0028] 1. Fixing nut; 2. Vertical screw; 3. Beam side mold; 4. Beam bottom mold; 5. Flat plate slide; 6. U-shaped slide; 7. Quick-closing wire mesh; 8. Through hole; 9. U-shaped groove. Detailed Implementation
[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0030] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0031] Example
[0032] like Figure 1-3 As shown, a concrete interception auxiliary device for the core area of a beam and column includes a beam side formwork 3 set on both sides of the beam and column and a beam bottom formwork 4 set at the bottom of the beam and column. The top of the beam side formwork 3 is provided with a flat sliding groove 5, and the surface of the beam bottom formwork 4 is provided with a U-shaped sliding groove 6. Several vertical screws 2 are set between the flat sliding groove 5 and the U-shaped sliding groove 6, and the vertical screws 2 are parallel to the beam side formwork 3.
[0033] like Figure 4 and Figure 5 As shown, the flat slide 5 is rectangular, with a rectangular through hole 8 at its center for the vertical screw 2 to pass through. The width of the flat slide 5 is not less than 50mm, and the width of the through hole 8 at the center is slightly wider than the diameter of the vertical screw 2. It is made of metal and is fixed to the top of the beam side formwork 3 using adhesive. Simultaneously, the vertical screw 2 can move along the direction of the through hole 8 to adjust its position, effectively avoiding conflict with the beam reinforcement.
[0034] like Figure 2 and Figure 6 As shown, the U-shaped groove 6 is provided with an upward-facing U-shaped recess 9, and the bottom of the vertical screw 2 is located inside the U-shaped recess 9. The inner side of the U-shaped groove 6 is slightly wider than the diameter of the vertical screw 2. It is made of rigid plastic material and is fixed to the surface of the beam bottom mold 4 with adhesive. The position of the vertical screw 2 can be adjusted along the direction of the U-shaped groove 6, which can effectively avoid conflict with the beam reinforcement.
[0035] like Figure 1 and Figure 2 As shown, the upper end of the vertical screw 2 is threaded, and the fixing nut 1 is connected to the vertical screw 2 via the thread. The lower end of the vertical screw 2 is not threaded. The upper end of the vertical screw 2 is located inside the flat slide groove 5, and the lower end of the vertical screw 2 is located inside the U-shaped slide groove 6. The vertical screw 2 is a cylindrical device with a diameter of not less than φ16. It is vertically fixed behind the quick-closing wire mesh 7 of the concrete interception system to support the quick-closing wire mesh 7, increase the rigidity of the interception mesh, and prevent it from being damaged by concrete impact. The fixing nut 1 is cylindrical in shape and hollow with a threaded interior. It is made of metal, fixed with adhesive, and connected to the threaded part of the upper part of the vertical screw 2 to fix the vertical screw 2 and prevent the vertical screw 2 from moving laterally along the beam.
[0036] like Figure 1 and Figure 3 As shown, the beam side mold 3 is made of rectangular flat wooden material and is used for concrete molding to determine the positions of both sides of the beam; the beam bottom mold 4 is made of rectangular flat wooden material and is used for concrete molding to determine the bottom position of the beam. Several vertical screw rods 2 have quick-closing wire mesh 7 on their surfaces.
[0037] The method of using an auxiliary device for concrete interception in the core area of a beam and column is as follows (e.g.) Figure 7 and Figure 8 (as shown)
[0038] Step 1: Install the bottom formwork 4 of the beam. Cut the formwork to the required dimensions. After cutting, install the bottom formwork 4 of the beam and fix it firmly.
[0039] Step 2: Install the U-shaped slide 6. The U-shaped slide 6 is fixed to the outer surface of the bottom formwork 4 of the beam with adhesive.
[0040] Step 3: Tie the reinforcing bars of the beam. The reinforcing bars of the beam are cut and installed according to the requirements.
[0041] Step 4: Install beam side formwork 3. Cut the formwork to the required dimensions, and after cutting, install beam side formwork 3 and fix it firmly.
[0042] Step 5: Install the flat slide 5. The flat slide 5 is fixed to the top of the outer side of the beam side formwork 3 with adhesive, and is in the same vertical section position as the U-shaped slide 6.
[0043] Step 6: Position the vertical screw 2. Insert the vertical screw 2 into the through hole 8 in the middle of the flat slide groove 5. Insert the lower part of the vertical screw 2 into the U-shaped slide groove 6. After insertion, adjust the position of the vertical screw 2 along the direction of the through hole 8 according to the position of the beam reinforcement to avoid conflict with the beam reinforcement. The number and position of the vertical screw 2 are adjusted according to the beam reinforcement.
[0044] Step 7: Install and fix the fixing nut 1. Slide the fixing nut 1 onto the top of the vertical screw 2 and rotate it down to the position of the flat slide groove 5. At the same time, use fixing glue to connect the fixing nut 1 to the flat slide groove 5 to fix it firmly and prevent the vertical screw 2 from moving.
[0045] Step 8: Install the quick-closing wire mesh 7. The quick-closing wire mesh 7 is fixed to the vertical reinforcing bars of the beam and the vertical screw rod 2 with tie wire. The vertical reinforcing bars of the beam and the vertical screw rod 2 are located on the outside of the quick-closing wire mesh 7 to provide strong support for it.
[0046] Step 9: Pour concrete. After the beam and column concrete is poured, before the concrete sets, remove the vertical screw rod 2, fixing nut 1, flat slide 5, etc., and recycle them for reuse.
[0047] Therefore, this utility model provides a concrete interception auxiliary device for the core area of beams and columns with the above-mentioned structure. It assists in the interception of concrete in the core area of beams and columns, is easy and quick to operate, has a fast construction speed, and a good interception effect. It effectively avoids the mixing of concrete of different grades, ensures construction quality, and the interception auxiliary device can be removed before the concrete initially sets and can be reused. It has low cost and meets the requirements of green construction.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A concrete interception auxiliary device for the core area of beams and columns, characterized in that: This includes beam side formwork set on both sides of the beam and column and beam bottom formwork set at the bottom of the beam and column. The top of the beam side formwork is provided with a flat sliding groove, and the surface of the beam bottom formwork is provided with a U-shaped sliding groove. Several vertical screws are set between the flat sliding groove and the U-shaped sliding groove, and the vertical screws are parallel to the beam side formwork.
2. The concrete interception auxiliary device for the core area of a beam and column according to claim 1, characterized in that: The flat plate slide is rectangular, and a rectangular through hole is provided in the center of the flat plate slide to allow the vertical screw to pass through.
3. The concrete interception auxiliary device for the core area of a beam and column according to claim 1, characterized in that: The U-shaped groove is provided with an upward-facing U-shaped recess, and the bottom of the vertical screw is located inside the U-shaped recess.
4. The concrete interception auxiliary device for the core area of a beam and column according to claim 1, characterized in that: The upper end of the vertical screw is threaded, and the fixing nut is connected to the vertical screw through the thread. The lower end of the vertical screw is not threaded. The upper end of the vertical screw is set inside the flat slide groove, and the lower end of the vertical screw is set inside the U-shaped slide groove.
5. The concrete interception auxiliary device for the core area of a beam and column according to claim 1, characterized in that: The beam side formwork is made of rectangular flat wooden material, and the beam bottom formwork is made of rectangular flat wooden material.
6. The concrete interception auxiliary device for the core area of a beam and column according to claim 1, characterized in that: Several of the vertical screws are provided with quick-closing wire mesh on their surfaces.