Water-drop-shaped non-fine concrete preparation device

Abstract

The utility model relates to the technical field of concrete preparation devices, in particular to a water-drop-shaped non-fine concrete preparation device. The device comprises a cover plate, a water-drop-shaped partition plate, a side mold and a bottom mold, the cover plate is movably connected to the upper end of the side mold, the bottom mold is movably connected to the lower end of the side mold, and the cover plate, the bottom mold and the side mold are relatively closed to form a long-strip-shaped preparation cavity; the water-drop-shaped partition plates are evenly distributed in the long-strip-shaped preparation cavity at intervals, the straight edges of the lower ends of the water-drop-shaped partition plates are connected to the bottom mold, the arc-shaped bottom edges of the water-drop-shaped partition plates make contact with and are not connected with the side mold in the working state, and the straight edges of the upper ends of the water-drop-shaped partition plates make contact with and are not connected with the cover plate in the working state. And triangular supports are uniformly distributed at the bottom of the bottom film. The device is low in cost, simple in processing technology, convenient to operate and capable of producing a plurality of blocks of water-drop-shaped non-fine concrete with the same shape at a time, the production efficiency is effectively improved, the construction period is shortened, and the stability and the reliability of the engineering quality are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete preparation devices, specifically to a teardrop-shaped sand-free concrete preparation device. Background Technology

[0002] In railway tunnel construction, drainage and waterproofing have always been key aspects, adhering to principles that combine prevention, drainage, interception, and blocking, adapting to local conditions and employing comprehensive management. However, tunnels located deep in mountains or underground are susceptible to water damage from prolonged exposure to dynamic water, leading to issues such as cracking, softening, and leakage of the dense concrete lining, as well as erosion of internal electrical and grounding systems, causing irreparable harm. To better manage dynamic water flow from the tunnel walls, several methods are employed: ① laying drainage boards between the initial support concrete and the secondary lining concrete; ② laying drainage boards on the inner surface of the initial support to drain dynamic water from the sidewalls to drainage holes on both sides of the tunnel, which then drains it into ditches on both sides; ③ laying circumferential and longitudinal drainage pipes at the tunnel floor to drain dynamic water from the tunnel floor to ditches on both sides. For even better drainage of sidewall dynamic water, longitudinal drainage pipes are laid at the waist of the sidewalls to collect dynamic water behind the rock-facing surface of each secondary lining slab. When a tunnel is located in a water-rich area, dynamic water between the lining slabs can easily penetrate and erode the secondary lining, creating weak points at the slab joints. In such cases, adding teardrop-shaped no-fines concrete facilitates the drainage of this dynamic water into longitudinal drainage blind pipes. These longitudinal drainage blind pipes are often perforated pipes to collect dynamic water from the rock-facing side. To prevent blockage, no-fines concrete can be used for filtration. The use of no-fines concrete in the sidewalls of railway tunnels has become a trend. However, most existing concrete production equipment is not designed specifically for the shape characteristics of teardrop-shaped no-fines concrete, making it difficult to efficiently and effectively produce the required high-quality teardrop-shaped no-fines concrete products. Traditional preparation methods often suffer from low efficiency, unstable quality, and high costs, and produce concrete with poor shape consistency, failing to meet the standardized and large-scale production requirements of teardrop-shaped no-fines concrete in railway tunnel engineering. Furthermore, complex production equipment often requires special materials and processing techniques, increasing production costs and construction difficulty. Utility Model Content

[0003] This invention provides a teardrop-shaped no-fines concrete preparation device. Through a unique structural design, it utilizes common construction materials to achieve simple processing and convenient operation. It can produce multiple standardized teardrop-shaped no-fines concrete blocks with consistent shapes at one time, effectively improving production efficiency, ensuring product quality, and reducing costs to meet the on-site needs of railway tunnel construction.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a teardrop-shaped no-fines concrete preparation device, comprising a cover plate, teardrop-shaped partitions, side molds, and a bottom film. The cover plate is movably connected to the upper end of the side mold, and the bottom film is movably connected to the lower end of the side mold. The cover plate, bottom film, and side mold are relatively closed to form an elongated preparation cavity. The teardrop-shaped partitions are evenly distributed in the elongated preparation cavity. The straight edge of the lower end of the teardrop-shaped partition is connected to the bottom film. The arc-shaped bottom edge of the teardrop-shaped partition is in contact with but not connected to the side mold in the working state, and the straight edge of the upper end of the teardrop-shaped partition is in contact with but not connected to the cover plate in the working state.

[0005] The teardrop-shaped partitions are evenly distributed within the preparation cavity at intervals of 0.2 to 0.5 m.

[0006] The lower straight edge of the teardrop-shaped partition is welded to the bottom membrane.

[0007] The cover plate and the side mold are connected by hinges; the bottom film is connected to the side mold by hinges.

[0008] The hinges are arranged in multiple sets with even spacing.

[0009] The hinge spacing is set at 0.5 ± 0.2 m.

[0010] The bottom of the base membrane is evenly provided with multiple sets of triangular supports.

[0011] The triangular supports are arranged at intervals of 0.5 ± 0.2 m.

[0012] The cover plate, teardrop-shaped partition, side mold, and bottom film are all made of steel plate.

[0013] The overall length of the teardrop-shaped sand-free concrete preparation device is 3.0 ± 0.5 m.

[0014] Beneficial effects:

[0015] 1. This utility model is easy to operate and can produce multiple teardrop-shaped no-fines concrete blocks at once, effectively improving production efficiency and reducing the construction cycle.

[0016] 2. This utility model ensures the consistency of product shape; through the precisely set teardrop-shaped partition, the produced teardrop-shaped no-fines concrete is standardized and has a consistent shape, which can meet the strict requirements of railway tunnel engineering for concrete shape and quality, and improve the stability and reliability of project quality.

[0017] 3. This utility model uses inexpensive materials and has a simple processing technology, requiring no complex processing equipment or high-precision processing techniques; ordinary processing methods are sufficient for its manufacture. In terms of daily maintenance, the simple structural design and easy inspection and maintenance of components such as hinges make repairs easy and the cost of replacement parts low. This effectively controls the overall cost of the device throughout its service life, saving construction companies significant funds and improving economic efficiency.

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a front view of the present utility model;

[0022] Figure 3 This is a schematic diagram of the bottom of the present invention;

[0023] Figure 4 Side view of this utility model.

[0024] In the diagram: 1. Cover plate; 2. Teardrop-shaped partition; 3. Bottom triangular support; 4. Hinge; 5. Side mold; 6. Bottom mold. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Figure 1This is a three-dimensional schematic diagram of the present invention. The diagram can clearly show the overall three-dimensional structure of the device, including the cover plate 1, side mold 5, bottom film 6, teardrop-shaped partition 2, and the relative positional relationship between each component, so that the observer can have an intuitive understanding of the shape and spatial structure of the device. Figure 2 This is a front view of the present invention, which shows the main structural features of the device from the front, such as the arrangement of the cover plate 1, side mold 5, teardrop-shaped partition 2, and the setting position of the hinge 4, which helps to understand the front structure and size proportions of the device. Figure 3 This is a schematic diagram of the bottom of the present invention, mainly showing the layout of the bottom triangular support 3 and the welding of the bottom membrane 6 and the teardrop-shaped partition 2, which provides an important basis for the bottom stability and structural integrity of the analysis device; Figure 4 This is a side view of the present invention, showing the connection relationship between the side mold 5, the cover plate 1, and the bottom film 6, as well as the overall height and side profile of the device, further supplementing the understanding of the device structure.

[0027] according to Figures 1-4 The device for preparing teardrop-shaped no-fines concrete includes a cover plate 1, teardrop-shaped partitions 2, side molds 5, and a bottom mold 6. The cover plate 1 is movably connected to the upper end of the side mold 5, and the bottom mold 6 is movably connected to the lower end of the side mold 5. The cover plate 1, bottom mold 6, and side mold 5 are closed relative to each other to form an elongated preparation cavity. The teardrop-shaped partitions 2 are evenly distributed in the elongated preparation cavity. The straight edge of the lower end of the teardrop-shaped partitions 2 is connected to the bottom mold 6. The arc-shaped bottom edge of the teardrop-shaped partitions 2 is in contact with but not connected to the side mold 5 in the working state, and the straight edge of the upper end of the teardrop-shaped partitions 2 is in contact with but not connected to the cover plate 1 in the working state.

[0028] Furthermore, such as Figure 1 As shown, the teardrop-shaped partitions 2 are evenly distributed within the preparation cavity at intervals of 0.2–0.5 m. Their dimensions can be adjusted according to actual site requirements without affecting the overall function. These teardrop-shaped partitions 2 are used to form the molding space for teardrop-shaped no-fines concrete, ensuring the consistency of the concrete shape. Preferably, when the teardrop-shaped partitions are spaced 0.2 m apart, 15 teardrop-shaped no-fines concrete pieces can be produced at once, improving production efficiency. The lower straight edge of the teardrop-shaped partition 2 is firmly welded to the bottom mold 6, ensuring structural stability during concrete pouring and vibration. Simultaneously, it separates from the side mold 5, facilitating subsequent opening of the side mold 5.

[0029] Furthermore, such as Figure 3 , Figure 4 As shown, the cover plate 1 and the side mold 5 are connected by hinge 4; the bottom film 6 is connected to the side mold 5 by hinge 4.

[0030] The hinges 4 are set at intervals of 0.5 ± 0.2 m. Preferably, a hinge 4 is set at the connection between the cover plate 1 and the side mold 5 at an interval of 0.5 m, and a hinge 4 is set at the connection between the side mold 5 and the bottom mold 6 at an interval of 0.5 m. Through these hinges 4, the side mold 5 can be opened relative to the bottom mold 6 through the bottom hinge 4, and the cover plate 1 can be opened through the hinge 4 connected to the side mold 5, which makes it convenient to take out the processed teardrop-shaped no-fines concrete after the concrete is formed.

[0031] Furthermore, such as Figures 1-4 As shown, multiple sets of triangular supports 3 are evenly distributed at the bottom of the bottom membrane 6, so that the straight edge of the upper end of the overall teardrop-shaped partition 2 is horizontal.

[0032] The triangular supports 3 are arranged at intervals of 0.5 ± 0.2 m. Preferably, the triangular supports 3 are arranged at intervals of 0.5 m at the bottom of the bottom membrane 6 to enhance the overall structural strength and stability of the device and prevent the device from deforming or being damaged during concrete pouring and transportation.

[0033] The materials used in the manufacture of this device are all common consumables found on construction sites. The cover plate 1, teardrop-shaped partition 2, side mold 5 and bottom mold 6 are all made of steel plate, which is simple to process and easy to use.

[0034] The overall length of the teardrop-shaped sand-free concrete preparation device is 3.0±0.5m, and the preferred length of the preparation device is 3.0m. It can produce multiple teardrop-shaped sand-free concretes at the same time, while ensuring the stability of the preparation device.

[0035] When using the teardrop-shaped no-fines concrete production device, first open the top cover plate 1 and slowly pour the pre-mixed no-fines concrete into the space formed by the teardrop-shaped partition plate 2. During pouring, strictly control the concrete height to ensure even filling. Then, thoroughly vibrate the poured concrete to ensure its density and quality. After vibration, replace the top cover plate 1. Once the concrete reaches its design strength, reopen the top cover plate 1. Since the top cover plate 1 and the side mold 5 are connected by hinges 4, a gentle force is sufficient to open the top cover plate 1 smoothly. Next, gently tap the side mold 5 with a small hammer. Using the hinges 4 connecting the side mold 5 and the bottom mold 6, the bottom mold 6 can be easily opened, allowing the finished teardrop-shaped no-fines concrete block to be directly removed. The entire process is simple and convenient, requiring no complex machinery or excessive manpower.

[0036] When using this teardrop-shaped no-fines concrete production device, follow these steps:

[0037] 1. Preparation stage: Ensure the device is placed on a stable working surface, check whether each component is intact, whether the hinge 4 is connected smoothly, and whether the teardrop-shaped partition 2 is damaged or deformed.

[0038] 2. Concrete pouring: Open the top cover plate 1 and slowly pour the pre-mixed teardrop-shaped no-fines concrete into the teardrop-shaped partition space inside the device according to the design requirements. During the pouring process, use measuring tools to strictly control the height of the concrete to ensure that the volume and weight of each piece of concrete are relatively consistent.

[0039] 3. Vibration treatment: Use appropriate vibration equipment to fully vibrate the poured concrete. The vibration time and intensity are determined according to the concrete mix ratio and construction specifications to ensure that the concrete is dense and free of air bubbles and voids.

[0040] 4. Molding and curing: After vibration, quickly cover with cover plate 1 to reduce concrete moisture evaporation. Curing should be carried out according to concrete curing requirements until the concrete reaches the design strength.

[0041] 5. Demolding and removal: After the concrete reaches the design strength, first open the top cover plate 1, then gently tap the side mold 5 with a small hammer, and open the bottom mold 6 in sequence. Carefully remove the prepared teardrop-shaped sand-free concrete block to avoid damaging the concrete block during the demolding process.

[0042] 6. Cleaning and maintenance: After removing the concrete blocks, promptly clean up any remaining concrete debris and other contaminants inside the device, check the wear condition of each component, and lubricate and maintain moving parts such as hinges to prepare for the next production run.

[0043] Where there is no conflict, those skilled in the art can combine the relevant technical features in the above examples according to the actual situation to achieve the corresponding technical effects. Specific details of the various combinations will not be elaborated here.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0046] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modifications, equivalent variations, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A water droplet shaped sandless concrete making apparatus characterized by: The device comprises a cover plate (1), water-drop-shaped partitions (2), side molds (5) and a bottom film (6), the cover plate (1) is movably connected to the upper end of the side mold (5), the bottom film (6) is movably connected to the lower end of the side mold (5), the cover plate (1), the bottom film (6) and the side mold (5) are relatively closed to form a long strip-shaped preparation cavity; the water-drop-shaped partitions (2) are evenly distributed in the long strip-shaped preparation cavity, the lower straight edge of the water-drop-shaped partitions (2) is connected to the bottom film (6), the arc-shaped bottom edge of the water-drop-shaped partitions (2) is in contact with the side mold (5) in the working state and is not connected, and the upper straight edge of the water-drop-shaped partitions (2) is in contact with the cover plate (1) in the working state and is not connected.

2. A water droplet shaped sandless concrete making device as claimed in claim 1, wherein: The water-drop-shaped partitions (2) are evenly distributed in the preparation cavity with a spacing of 0.2-0.5 m.

3. A water droplet shaped sandless concrete making apparatus as claimed in claim 2 wherein: The lower straight edge of the water-drop-shaped partitions (2) is welded to the bottom film (6).

4. The water droplet shaped sandless concrete making apparatus as claimed in claim 1, wherein: The cover plate (1) and the side mold (5) are connected by hinges (4), and the bottom film (6) is connected to the side mold (5) by hinges (4).

5. A water droplet shaped sandless concrete making apparatus as claimed in claim 4 wherein: The hinges (4) are arranged in multiple groups and are evenly distributed.

6. A water droplet shaped sandless concrete making apparatus as claimed in claim 5 wherein: The hinges (4) are arranged with a spacing of 0.5±0.2 m.

7. The water droplet shaped sandless concrete making apparatus as claimed in claim 1, wherein: The bottom film (6) is evenly provided with multiple groups of triangular supports (3) at the bottom.

8. A water droplet shaped sandless concrete making apparatus as claimed in claim 7 wherein: The triangular supports (3) are arranged with a spacing of 0.5±0.2 m.

9. A water droplet shaped sandless concrete making device according to any one of claims 1 to 8, characterized in that: The cover plate (1), the water-drop-shaped partitions (2), the side mold (5) and the bottom film (6) are all made of steel plates.

10. A water droplet shaped sandless concrete making apparatus as claimed in claim 9 wherein: The overall length of the water-drop-shaped sand-free concrete preparation device is 3.0±0.5 m.

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