A device for pre-laying concrete mortar

Abstract

This utility model discloses a device for pre-laying concrete mortar, relating to the field of building engineering technology. In actual construction, the root of concrete is prone to decay after it has solidified. Standards require that vertical components such as walls and columns have a bonding layer laid at the bottom before concrete pouring. However, the amount of pre-laying mortar for a single column or wall is small, and the mortar delivered by the pump truck cannot be used immediately, resulting in waste. This utility model provides a device for pre-laying concrete mortar, including a vibrator and a hopper assembly. The vibrator is used to vibrate the mortar in the hopper assembly. The hopper assembly includes a filter structure and a supporting structure matching the filter structure, with the filter structure movably connected to the supporting structure. This utility model ensures that small amounts of mortar can be readily available, facilitating strict requirements for mortar pre-laying measures on site; it improves work efficiency while avoiding mortar waste and saving construction costs.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a device for pre-laying concrete mortar. Background Technology

[0002] During the pouring of concrete columns, if concrete is poured directly, the coarse aggregate in the concrete will sink while the mortar floats to the top, leading to root rot after the concrete has set. Therefore, the code requires that before pouring concrete, a layer of cement mortar with the same composition as the mortar in the concrete, no more than 30mm thick, should be laid at the bottom of vertical components such as walls and columns as a bonding layer.

[0003] In actual construction, commercial concrete mixing plants are required to deliver a certain amount of mortar of the same composition before delivering concrete. This mortar is used as a base layer for wall and column components before pouring. Generally, this is 1-2 m³. The amount of mortar used for pre-laying a single column or wall is small, and both the mortar and concrete must be used before they harden. This is because the actual concrete pouring process may take too long (e.g., pump truck relocation, formwork expansion and reinforcement require downtime). The delivered mortar cannot be used immediately and will be wasted after hardening, resulting in losses. Repeatedly transporting mortar is not cost-effective and is time-consuming and labor-intensive.

[0004] The always small supply of mortar causes difficulties in transportation and coordination at the mixing plant. In order to ensure the continuity of pouring, the pre-laying of mortar at the base of walls and columns is often abandoned due to the solidification of mortar on site or the untimely supply of mortar.

[0005] Chinese patent CN 216641409 U discloses a reusable concrete column anti-rot component and device. The concrete column anti-rot component includes two L-shaped reusable rods with vertical guards. The two ends of one L-shaped reusable rod are respectively abutted or detachably connected to the two ends of the other L-shaped reusable rod. The vertical guards of the two L-shaped reusable rods enclose a square support channel. The vertical guards are arranged parallel to the central axis of the support channel.

[0006] This reusable concrete column anti-rotten root component and device uses a square frame formed by two L-shaped reusable rods and a square support channel formed by vertical guards. It can be used with column formwork to eliminate gaps at the bottom of the column formwork, eliminate the quality problem of rotten roots in concrete columns, and can also be used as a positioning component at the bottom of column formwork.

[0007] Although the reusable concrete column anti-rotten root component and device can effectively eliminate the quality problem of concrete column rotten root and better ensure the column cross-sectional dimensions and positioning, it is not suitable for laying a cement mortar layer no more than 30mm thick at the bottom before concrete pouring. It cannot prevent the coarse aggregate in the concrete from settling and the mortar from floating, which can easily lead to rotten root phenomenon after the concrete is formed.

[0008] In addition, the reusable concrete column anti-rot root component and device requires the angle steel to be fixed to the construction ground with cement nails. After the concrete is poured, the column formwork and the square frame formed by the angle steel are removed before it can be reused on the next construction ground. The whole operation process requires both fixing and dismantling, which reduces work efficiency. Summary of the Invention

[0009] To address the aforementioned problems, this utility model aims to provide a device for pre-laying concrete mortar, which can lay the bottom mortar layer before the wall and column components are poured, preventing coarse aggregate in the concrete from sinking and mortar from floating, avoiding the root rot phenomenon that easily occurs after the concrete is formed, and can be used and removed at any time, especially suitable for laying mortar layers with small usage.

[0010] The main idea of ​​the technical solution adopted by this utility model is as follows: a device for pre-laying concrete mortar is set up in conjunction with a vibrating rod and a hopper assembly, which can separate the coarse aggregate in the concrete from the mortar, thereby extracting cement mortar with the same composition as the mortar in the concrete as a bonding layer; a filter structure and a support structure are movably connected, which can pour out the separated coarse aggregate from the support structure at any time, making it convenient to continue adding concrete mortar to the filter structure and the support structure. At the same time, the bonding layer can be controlled to not exceed the specification requirements according to the amount of filtered coarse aggregate.

[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0012] An apparatus for pre-laying concrete mortar includes a vibrator and a hopper assembly, the vibrator being used to vibrate the mortar within the hopper assembly.

[0013] The hopper assembly includes a filter structure and a support structure with a gap connection matching the filter structure, and the filter structure is movably connected to the support structure.

[0014] Furthermore, based on the above technical solution, the filter structure includes a filter frame and a skeleton. The filter frame is a wire mesh structure with the opening facing upwards, and the skeleton is used to support and lift the filter frame. The skeleton is composed of N steel bars connected at uniform intervals.

[0015] Furthermore, through the above technical solution, the supporting structure includes a material hopper with its opening facing upwards, the frame being fitted inside the material hopper, and a discharge port being connected to the bottom of the material hopper.

[0016] Furthermore, according to the above technical solution, the discharge port includes a connecting plate, a first baffle, a second baffle, and a support plate;

[0017] One end of the connecting plate is connected to the bottom of the material hopper at an acute angle, and the other end is connected to a support plate;

[0018] The first baffle is connected to the front and rear sides of the connecting plate along the sand flow direction, and part of it is located at the bottom of the material hopper and connected to the bottom of the material hopper;

[0019] The side of the second baffle is connected to the side of the first baffle away from the bottom of the material hopper, and the bottom edge of the second baffle is connected to the tray.

[0020] Furthermore, through the above technical solution, a support column is connected to the bottom of the connecting plate.

[0021] Furthermore, through the above technical solution, the filter frame is square, the skeleton is concave, and the top of both sides of the skeleton extends outward and is connected to a support rod.

[0022] The beneficial effects of this utility model are: compared with the prior art, the improvement of this utility model lies in that...

[0023] (1) By designing the vibrating rod and hopper assembly for use together, the coarse aggregate and mortar in the concrete can be separated, thereby extracting cement mortar with the same mortar composition as the concrete as the bonding layer.

[0024] (2) By designing a movable connection between the filter structure and the support structure, the separated coarse aggregate can be poured out of the support structure at any time, which facilitates the addition of concrete mortar to the filter structure and the support structure. At the same time, the amount of filtered coarse aggregate can be used to control the mortar layer to not exceed the specification requirements.

[0025] (3) By designing a filter frame and a skeleton, the skeleton and filter frame work together to not only screen out small stones, but also increase the strength and rigidity of the filter frame, forming a container that is both flexible and rigid, with both leakage and holding capacity, and also strong enough to support vibration.

[0026] (4) By designing the material discharge port, it is possible to accurately align the concrete mortar with the opening formed by the reinforcing bars tied to the column or wall.

[0027] This invention solves the problem of concrete mortar not being delivered in a timely manner or not being usable immediately after delivery, ensuring that small amounts of mortar can be used at any time, which is beneficial for strict requirements on mortar pre-laying measures on site; it can also quickly and easily obtain the mortar layer at the bottom of concrete columns and control the amount of mortar; this invention has a simple structure, the materials are easy to obtain, and it is easy to operate and move, and can be used and retrieved at any time, which greatly improves work efficiency and saves construction costs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a device for pre-laying concrete mortar according to the present invention;

[0029] Figure 2 This is a bottom view of a device for pre-laying concrete mortar according to the present invention;

[0030] Figure 3 This is a schematic diagram of an array of devices for pre-laying concrete mortar according to the present invention;

[0031] Figure 4 This is a schematic diagram of the filter structure of a device for pre-laying concrete mortar according to the present invention.

[0032] Figure 5 This is an enlarged view of part A of the device for pre-laying concrete mortar according to the present invention;

[0033] The components are: 1. Filter frame; 2. Frame; 3. Material hopper; 4. Connecting plate; 5. First baffle; 6. Second baffle; 7. Support plate; 8. Support column; 9. Support rod; 10. Handle. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] The inventors discovered that in actual construction, concrete is prone to root rot after it hardens. Standards require that vertical structural members such as walls and columns have a cement mortar layer no more than 30mm thick, with the same mortar composition as the concrete, laid at the bottom as a bonding layer before concrete pouring. Because the amount of mortar used for a single column or beam is small, and both the mortar and concrete must be used before they harden, and because the actual concrete pouring process may be too long (e.g., pump truck relocation, formwork expansion and reinforcement all require downtime), the delivered mortar cannot be used immediately and must be wasted after hardening, resulting in losses.

[0036] Based on the above findings, this application proposes a device for pre-laying concrete mortar, which can ensure that a small amount of mortar can be used at any time, facilitating strict requirements for mortar pre-laying measures on site; it improves work efficiency, avoids mortar waste, and saves construction costs. Example 1

[0037] See Figures 1-5 This application discloses a device for pre-laying concrete mortar, including a vibrator and a hopper assembly. The vibrator is used to vibrate the mortar in the hopper assembly. The vibrator can be any commonly used construction method in the prior art. Through the vibration of the vibrator, the mortar flows downward and the coarse aggregate floats upward, thereby extracting cement mortar with the same composition as the mortar in the concrete as a bonding layer.

[0038] The hopper assembly includes a filter structure, a support structure with a gap connection that matches the filter structure, and the filter structure is movably connected to the support structure.

[0039] like Figures 3-5 As shown, the filter structure includes a filter frame 1 and a frame 2. The filter frame 1 is a square wire mesh structure with the opening facing upwards. The frame 2 is used to support and lift the filter frame 1. It is a concave structure made of N steel bars connected at even intervals. The top of the two sides of the frame 2 extends outwards and is connected to the support rods 9. The support rods 9 increase the connection strength between the steel bars.

[0040] The skeleton 2 and the filter frame 1 work together to not only filter out small stones, but also increase the strength and rigidity of the filter frame 1, forming a container that combines rigidity and flexibility, which can support the intensity of the vibrating rod's vibration.

[0041] The mortar is filtered out and poured to the bottom of the concrete column. The filtering structure can be separated from the supporting structure. It is used to remove the filtered coarse aggregate. The filtered coarse aggregate can be evenly placed into the subsequent column or wall concrete in batches with a shovel according to the pouring situation. Vibration is strengthened, which not only ensures that the bottom mortar is pre-laid to prevent root rot, but also eliminates material waste. Furthermore, by calculating the amount of filtered coarse aggregate, the grout layer can be controlled to not exceed the specification requirements.

[0042] like Figures 1-3 As shown, the supporting structure includes a material hopper 3, which is a container made of steel plate. The opening of the material hopper 3 faces upward, and the frame 2 is fitted inside the material hopper 3. The bottom of the material hopper 3 is connected to a discharge port.

[0043] The discharge port includes a connecting plate 4, a first baffle 5, a second baffle 6, and a support plate 7; one end of the connecting plate 4 is connected to the bottom of the material hopper 3 at an acute angle, and the other end is connected to the support plate 7; the first baffle 5 is connected to the front and rear sides of the connecting plate 4 along the sand flow direction, and part of it is located at the bottom of the material hopper 3 and connected to the bottom of the material hopper 3; the side of the second baffle 6 is connected to the side of the first baffle 5 away from the bottom of the material hopper 3, and the bottom edge of the second baffle 6 is connected to the support plate 7; a support column 8 is connected to the bottom of the connecting plate 4.

[0044] During construction, the discharge port is aligned with the opening formed by the reinforcing bars tied to the column or wall to pour concrete mortar. Example 2

[0045] like Figure 1 As shown, the difference from Embodiment 1 is that the material hopper 3 has handles 10 symmetrically connected to its front and rear sides, making it easy to move the material. During construction, the construction personnel hold the handles 10 to move the support structure to the construction position, and after the construction is completed, the support structure is moved away from the construction site.

[0046] The specific operating principle of a device for pre-laying concrete mortar is as follows:

[0047] Take, for example, a column pre-laid with mortar containing 0.75 cubic meters of aggregate and 0.25 cubic meters of aggregate in 1 cubic meter of concrete.

[0048] During construction, workers hold handle 10 to move the support structure to the construction position, align the material outlet with the opening formed by the steel bars tied to the column, place the filter structure into the support structure, and begin pouring concrete.

[0049] A fixed-capacity bucket is used to hold concrete. The concrete in the bucket is poured into the filter structure. A vibrator is inserted into the concrete for 10 to 20 seconds. Guided by the vibrator, the mortar is filtered out and poured through the material hopper 3 along the connecting plate 4 and the support plate 7 to the bottom of the concrete column. The filter structure is then separated from the supporting structure to remove the filtered stones.

[0050] After pouring out the stones, place the filter structure on top, and then vibrate it with a vibrator. Depending on the amount of stones filtered out, the grout layer can be controlled to not exceed the specification requirements.

[0051] By following the steps described above, based on the size of the column and the capacity of the buckets, it can be calculated how many buckets of concrete are needed to complete the grouting layer at the base of the column. After the grouting is completed, the supporting structure and filter structure will be moved away from the construction site.

[0052] The filtered stones can be evenly placed into the subsequent column or wall concrete in batches with a shovel, depending on the pouring situation. This ensures that the concrete mortar can be used and removed as needed, which not only guarantees the pre-laying of mortar at the bottom to prevent root rot, but also eliminates material waste.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for pre-laying concrete mortar, comprising a vibrator, characterized in that: It also includes a hopper assembly, wherein the vibrating rod is used to vibrate the mortar within the hopper assembly; The hopper assembly includes a filter structure and a support structure that is gap-connected to the filter structure, and the filter structure is movably connected to the support structure.

2. The device for pre-laying concrete mortar according to claim 1, characterized in that: The filter structure includes a filter frame (1) and a skeleton (2). The filter frame (1) is a wire mesh structure with the opening facing upwards. The skeleton (2) is used to support and lift the filter frame (1). The skeleton (2) is made of N steel bars connected at even intervals.

3. The device for pre-laying concrete mortar according to claim 2, characterized in that: The supporting structure includes a material hopper (3) with its opening facing upwards, and a frame (2) fitted inside the material hopper (3). The bottom of the material hopper (3) is connected to a discharge port.

4. The device for pre-laying concrete mortar according to claim 3, characterized in that: The discharge port includes a connecting plate (4), a first baffle (5), a second baffle (6), and a support plate (7); One end of the connecting plate (4) is connected to the bottom of the material hopper (3) at an acute angle, and the other end is connected to a support plate (7). The first baffle (5) is connected to the front and rear sides of the connecting plate (4) along the sand flow direction, and part of it is located at the bottom of the material hopper (3) and connected to the bottom of the material hopper (3); The side of the second baffle (6) is connected to the side of the first baffle (5) away from the bottom of the material hopper (3), and the bottom edge of the second baffle (6) is connected to the tray (7).

5. The device for pre-laying concrete mortar according to claim 4, characterized in that: The bottom of the connecting plate (4) is connected to a support column (8).

6. The device for pre-laying concrete mortar according to claim 2, characterized in that: The filter frame (1) is square, the skeleton (2) is concave, and the top of the two sides of the skeleton (2) is connected to the support rod (9).

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