Intercepting device for high-grade concrete and low-grade concrete
By welding the vertical dowels and stirrups and setting tension screw supports, combined with air bags to fill the gaps, the problems of easy damage and leakage of dowels in traditional interception devices are solved, and stable separation and quality assurance of high and low grade concrete are achieved.
Patent Information
- Application Number
- CN202422532417.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In traditional high and low grade concrete interception devices, the inserted reinforcement is not firmly fixed and is easily damaged, and the gaps on both sides of the barrier are prone to leakage, resulting in quality problems such as slurry flow, color difference, and misalignment.
Welding is used to connect the vertical dowels and stirrups, tension screw supports are set at the bottom, and air bags are inflated on both sides of the dowels to fill the gaps to form a sealed barrier, ensuring the stability and sealing of the net.
It enhances the stability of the interception device, prevents the displacement of the inserted reinforcement, avoids leakage and concrete mixing, and improves the concrete quality and construction efficiency.
Smart Images
Figure CN223446648U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete construction technical field, concretely is a high and low grade concrete intercepting device. BACKGROUND
[0002] The concrete grade, also known as the strength grade of concrete, refers to the compressive ultimate strength of a cube standard test piece with a side length of 150mm made and maintained according to the standard method, measured by the standard test method at the age of 28 days, in N / mm 2 . This index is one of the important indexes for evaluating the quality of concrete, and is directly related to the bearing capacity and durability of concrete. High-grade concrete usually refers to concrete with a strength grade of C60 and above. Low-grade concrete refers to concrete with a strength grade below a certain standard, which may vary by region and industry.
[0003] According to the traditional high and low grade intercepting process, the reinforcing bar behind the intercepting net is used as support, and the reinforcing bar is not fixed firmly, which is easy to damage the intercepting device during concrete pouring, and the gap on both sides of the intercepting net is easy to cause slurry leakage, thereby causing quality problems such as slurry flow, color difference and wrong table at the junction of high and low grade concrete. Based on this, the utility model designs a high and low grade concrete intercepting device to solve the above problems. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a high and low grade concrete intercepting device, which solves the problem of low intercepting efficiency of high and low grade concrete in the background art.
[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:
[0006] A high and low grade concrete intercepting device, comprising a stirrup, one side of the stirrup is provided with vertical reinforcing bars, the vertical reinforcing bars are vertically placed, and a tensioning screw rod is installed between the vertical reinforcing bars, the other side of the vertical reinforcing bars is provided with an intercepting net, and the front and back surfaces of the vertical reinforcing bars are both provided with air bags.
[0007] Preferably, the upper part of the vertical reinforcing bar is fixedly connected with the stirrup by welding, and the tensioning screw rod is installed at the lower part of the vertical reinforcing bar.
[0008] In this technical scheme, the vertical reinforcing bar at a distance of 700mm from the beam side is selected as C12, the interval is 50mm, the upper part is connected with the stirrup in the form of welding, and the lower part is provided with a tensioning screw rod as reinforcing bar support. The tensioning screw rod is selected as M14, the first tensioning screw rod is arranged at a distance of 10cm from the beam bottom, and the second tensioning screw rod is arranged at an interval of 30cm upwards.
[0009] The upper part of the vertical insert is connected with the beam stirrup by welding, which is more reliable than the traditional binding or mechanical connection, and can effectively resist the lateral pressure and impact force generated during concrete pouring, preventing the displacement or falling of the insert. The tension rods are arranged at intervals, which not only ensures the uniformity of the support, but also effectively reduces the use of materials and the cost.
[0010] Preferably, the blocking net is installed on the side of the vertical insert away from the tension rod, and the thickness of the blocking net is not less than 3mm.
[0011] Preferably, the air bag is inflated and used to fill the gap between the front and back of the vertical insert.
[0012] In this technical solution, the blocking net is vertically arranged, so that the high and low grade concrete can be naturally separated during pouring, and the phenomenon of slurry flow is avoided. At the same time, the blocking net forms a clear isolation belt, which ensures that the high and low grade concrete does not interfere with each other during pouring, thereby ensuring the quality and performance of the concrete. The air bag is arranged in the gap on both sides of the vertical insert and inflated to fill the gap. The flexible property of the air bag can tightly fit the vertical insert and the beam side wall, forming an effective sealing barrier. This sealing effect not only prevents the leakage and mixing of concrete, but also reduces the generation of bubbles and cavities during concrete pouring.
[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:
[0014] 1. The utility model discloses a welding method is adopted to connect the vertical insert and the stirrup closely, and a tension rod is arranged at the lower part as an additional support, which significantly enhances the overall stability of the intercepting device. This design effectively resists the lateral pressure and impact force generated during concrete pouring, preventing the displacement or falling of the insert, thereby ensuring the stability of the intercepting device during pouring.
[0015] 2. The utility model discloses that the air bag is arranged and inflated on both sides of the vertical insert, which ingeniously solves the problem of slurry leakage in the gap on both sides of the traditional intercepting device. The flexible property of the air bag can tightly fit the vertical insert and the beam side wall, forming an effective sealing barrier, which effectively prevents the direct contact and mixing between the high and low grade concrete, avoiding the occurrence of quality problems such as slurry flow, color difference and misalignment. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic view of the utility model;
[0017] Figure 2 It is a structural schematic view of the utility model Figure 1enlarged view of A in FIG.
[0018] Figure 3 is a side view of the present application;
[0019] Figure 4 is a structural schematic view of the present application.
[0020] Wherein: 1, stirrup; 2, vertical bar; 3, tension screw; 4, blocking net; 5, air bag. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0022] Please refer to Figures 1-3 A high-low grade concrete blocking device, including stirrup 1, one side of the stirrup 1 is provided with vertical bar 2, the vertical bar 2 is vertically placed and the vertical bar 2 is provided with tension screw 3 between, the other side of the vertical bar 2 is provided with blocking net 4, the front and back of the vertical bar 2 are both provided with air bag 5.
[0023] The upper part of the vertical bar 2 is fixedly connected with the stirrup 1 through welding, and the tension screw 3 is installed at the lower part of the vertical bar 2.
[0024] In the embodiments of the present application, the vertical bar 2 is arranged at a position 700 mm away from the side of the beam, the model is selected as C12, the interval is 50 mm, the upper part is connected with the stirrup 1 in a welding mode, and the lower part is provided with the tension screw 3 as a bar support. The model of the tension screw 3 is selected as M14, the first tension screw 3 is arranged at a position 10 cm away from the bottom of the beam, and the second tension screw 3 is arranged at an interval of 30 cm upwards.
[0025] The vertical bar 2 is selected as C12, and the interval is set as 50 mm. This setting not only ensures sufficient structural strength, but also takes into account the economy of construction. The vertical bar 2 is arranged at a position 700 mm away from the side of the beam. This distance is based on the comprehensive consideration of the formwork support system and the concrete pouring pressure during concrete pouring, and aims to ensure the stability of the blocking device during the pouring process. The upper part of the vertical bar 2 is closely connected with the beam stirrup 1 in a welding mode. This welding connection mode is more firm and reliable than the traditional binding or mechanical connection, and can effectively resist the lateral pressure and impact force generated during concrete pouring, preventing the vertical bar 2 from shifting or falling off.
[0026] The pull screw 3 is arranged at the lower part of the vertical dowel 2 as an additional support, and the model M14 is selected to ensure sufficient support force. The pull screw 3 is arranged at intervals, and the first pull screw 3 is arranged at a distance of 10 cm from the beam bottom, and then one pull screw 3 is arranged every 30 cm. The arrangement not only ensures the uniformity of the support, but also effectively reduces the use of materials and reduces the cost. The pull screw 3 is tightly connected with the formwork or other structures through the nuts or locking devices at the two ends of the pull screw 3, so as to form a stable support system. The design significantly enhances the overall stability of the intercepting device and prevents deformation and damage during the concrete pouring process.
[0027] Please refer to Figures 1-4 The intercepting net 4 is arranged on the side, away from the pull screw 3, of the vertical dowel 2, and the thickness of the intercepting net 4 is not less than 3 mm.
[0028] The air bag 5 is inflated and used to fill the gap between the front and back of the vertical dowel 2.
[0029] In the embodiment of the utility model, the intercepting net 4 is vertically arranged, and the material with a thickness not less than 3 mm is selected to ensure sufficient strength and durability. The intercepting net 4 with the thickness can effectively prevent the mixing of high and low grade concrete and keep the interface of the concrete clear and neat. As the core component of the intercepting device, the vertical arrangement of the intercepting net 4 enables the high and low grade concrete to be naturally separated during the pouring process, thereby avoiding the occurrence of the slurry flow phenomenon. Meanwhile, the intercepting net 4 forms a clear isolation belt to ensure that the high and low grade concrete does not interfere with each other during the pouring process, thereby ensuring the quality and performance of the concrete and the stability and durability during the construction process.
[0030] The air bag 5 is arranged in the gap on both sides of the vertical dowel 2 and is tightly filled by inflation. The design skillfully solves the problem of slurry leakage in the gap on both sides of the intercepting net 4 and ensures the sealing and integrity of the intercepting device. After inflation, the air bag 5 can tightly adhere to the vertical dowel 2 and the beam side wall surface due to the flexible characteristics of the air bag 5, thereby forming an effective sealing barrier. The sealing effect not only prevents the leakage and mixing of the concrete, but also reduces the generation of air bubbles and cavities during the pouring process of the concrete, thereby improving the compactness and quality of the concrete.
[0031] The filling of the air bag 5 effectively prevents the direct contact and mixing between the high and low grade concrete, thereby avoiding the occurrence of quality problems such as slurry flow, color difference and wrong table, and the use of the air bag 5 also simplifies the construction process and improves the construction efficiency.
[0032] During use, C12 vertical dowels (2) are first securely connected to the stirrups (1) by welding to ensure the stability of the interceptor during concrete pouring. The vertical dowels (2) are spaced 50 mm apart, ensuring both structural strength and economic efficiency. M14 tensioning screws (3) are spaced below the dowels and connected to the formwork or other structure via nuts or locking devices, forming a stable support system that effectively resists lateral pressure and impact forces during concrete pouring.
[0033] As the core of the interception device, the blocking net 4 is set vertically and the material thickness is not less than 3mm. It effectively blocks the mixing of high and low grade concrete and keeps the concrete interface clear. Its vertical setting allows the concrete to be naturally separated to avoid slurry flow.
[0034] When inflated, the airbag 5 fits snugly between the vertical dowel 2 and the beam sidewall, forming a sealed barrier that effectively prevents concrete leakage and mixing, while also reducing the formation of bubbles and voids and improving concrete quality. This design not only solves the problem of concrete leakage often associated with traditional interception devices, but also simplifies the construction process and improves efficiency.
[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-low grade concrete interception device, comprising stirrups (1), characterized in that: A vertical dowel bar (2) is installed on one side of the stirrup (1), the vertical dowel bar (2) is placed vertically and a tension screw (3) is installed between the vertical dowel bars (2), a barrier net (4) is installed on the other side of the vertical dowel bar (2), and air bags (5) are installed on the front and back sides of the vertical dowel bar (2).
2. A high-low grade concrete interception device according to claim 1, characterized in that: The upper portion of the vertical dowel (2) is fixedly connected to the stirrup (1) by welding, and the tension screw (3) is installed at the lower portion of the vertical dowel (2).
3. The high-low grade concrete intercepting device according to claim 1, characterized in that: The barrier net (4) is installed on a side of the vertical dowel bar (2) away from the tension screw rod (3), and the thickness of the barrier net (4) is not less than 3 mm.
4. The high-low grade concrete intercepting device according to claim 1, characterized in that: The air bag (5) is inflated and used to fill the gaps between the front and back sides of the vertical dowel (2).