Silo with air stopping function and opposite-pulling steel bar structure thereof

Abstract

The utility model discloses a silo with an air stopping function and an opposite-pulling steel bar structure thereof, which are characterized in that a steel bar frame is used as a fixing foundation of a pull rod, the integrity of the pull rod and the concrete structure of the silo is further strengthened while the pulling effect of the pull rod is ensured, and the silo can be prevented from being damaged when bearing external force such as material pressure and wind power. The stress can be distributed more uniformly, and the structural stability and the bearing capacity are improved. The cushion blocks are arranged on the two sides of the pull rod to serve as air stopping rings, an air circulation path can be effectively blocked, and the air tightness of the silo is improved. After construction is finished, the pull rods are directly solidified in the concrete structure of the silo, the problem that holes are formed due to the fact that the pull rods are drawn out can be fundamentally solved through the structure, the air tightness of the silo is effectively guaranteed, and a complete and sealed storage space is formed in the silo. Meanwhile, the structure can omit pull rod drawing and follow-up complicated hole blocking procedures, the construction process is simplified, and the overall construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of silo reinforcement structure technology, specifically to a silo with air-stopping function and its tie-bar structure. Background Technology

[0002] As a crucial structure for storing various bulk materials, the construction quality of reinforced concrete silos directly affects the safety and stability of material storage. In traditional reinforced concrete silo construction, the use of tie rods (also called tie bolts) paired with PVC sleeves is common. Once the concrete has hardened to a certain strength, the tie rods are removed for reuse in subsequent projects, reducing construction costs. However, this operation leaves numerous voids in the silo's concrete structure. Especially when critical areas such as the silo's ring beam require secondary pouring, these voids accumulate, posing a serious risk of air leakage.

[0003] To address this issue, the construction team attempted various remedial measures. The conventional approach was to apply mortar to the outer surface of the silo's concrete structure to try and fill the voids. For silos with higher airtightness requirements, mortar was applied to both the inner and outer sides simultaneously, or a more complex intermediate sealing process was employed. However, due to the complex structure of the silos, the large number and irregular distribution of voids, it was difficult for the mortar to completely and tightly fill every single void, resulting in the silo's airtightness never reaching the ideal state. This not only made the materials stored inside the silo susceptible to changes in external air humidity and temperature, leading to material deterioration, but also potentially caused dust leaks, affecting the surrounding environment and production safety. Furthermore, removing the tie rods required individual operation by construction personnel, which was time-consuming, labor-intensive, and tedious; the subsequent sealing process for the voids required not only a large amount of sealing material but also meticulous work by specialized personnel. The entire process consumed significant manpower and time costs, severely restricting the construction progress and increasing the overall construction cost. Utility Model Content

[0004] This application provides a silo with air-tight function and its tie-bar structure, which can solve the following problems: the existing silo steel structure is difficult to achieve good air tightness, and the existing structure requires construction personnel to pull out the tie rods one by one and then seal the holes left after pulling them out, which is time-consuming, labor-intensive and cumbersome.

[0005] To solve the above technical problems, a silo tie-bar structure with air-stopping function is provided, including a steel bar frame. The structure is characterized by including multiple tie rods connected to the steel bar frame along its width direction. Both ends of each tie rod extend beyond the corresponding side of the steel bar frame. Each tie rod has a pad connected to both ends. On each pad, a threaded end is provided along the width direction of the steel bar frame on the side away from the tie rod. One end of the threaded end is threaded to the pad, and the other end is provided with a template joint. A positioning space for casting template is formed between the pad and the template joint.

[0006] In one embodiment, the pad is provided at both ends of the pull rod by means of a threaded connection.

[0007] In one embodiment, the pad has a first threaded hole extending through it along the axial direction of the pull rod, and the end screw and the pull rod are threaded to the first threaded hole from both sides respectively.

[0008] In one embodiment, the pad is frustum-shaped, with its central axis coinciding with the axial direction of the pull rod, the smaller end face facing inward, and the larger end face facing outward.

[0009] In one embodiment, the template joint is nut-shaped and is connected to the end screw via a threaded connection.

[0010] In one embodiment, the tie rod is fixedly connected to the steel reinforcement frame by welding.

[0011] In one embodiment, the tie rod is arranged in multiple layers along the vertical direction, with multiple tie rods arranged in each layer.

[0012] In one embodiment, the tie rods of each layer are arranged equidistantly in a circle with the central axis of the silo as the center, and each tie rod is arranged radially along a circle with the central axis of the silo as the center.

[0013] A silo with a gas-stopping function includes a silo wall, which comprises a silo tie-bar structure and silo wall concrete. The silo tie-bar structure includes a steel frame and a tie rod connected to the steel frame along the width direction. Both ends of the tie rod extend beyond the corresponding side of the steel frame. Each end of the tie rod is connected to a pad. An end screw extending along the width direction of the steel frame is threaded onto the pad. A template joint is provided at the end of the end screw away from the pad. A casting template positioning space is formed between the pad and the template joint. The silo wall concrete, the steel frame, the tie rod, and the pads at both ends of the tie rod are cast and fixed into an integral structure.

[0014] In summary, the silo with gas-stopping function and its tie-bar structure disclosed in this application have the following advantages compared to the prior art:

[0015] (1) The structure proposed in this utility model abandons the traditional PVC sleeve and uses steel frame as the fixed foundation of the tie rod. This structure ensures the tie rod connection effect while further strengthening the integrity of the tie rod and the silo concrete structure, so that the silo can distribute stress more evenly when subjected to external forces such as material pressure and wind force, thereby improving the structural stability and load-bearing capacity.

[0016] (2) Pads are provided on both sides of the tie rod to act as air-stopping rings, which can effectively block the airflow path and significantly improve the airtightness of the silo.

[0017] (3) After the slipform construction is completed, the tie rods are not removed but are directly solidified in the concrete structure of the silo. This structure can eliminate the problem of holes formed by removing the tie rods from the source, effectively ensuring the airtightness of the silo and making the silo form a complete and sealed storage space, which better protects the stored materials inside. At the same time, this structure can eliminate the need to remove the tie rods and the subsequent complicated hole sealing process, greatly simplifying the construction process, reducing construction steps, shortening the construction cycle, significantly improving the overall construction efficiency, and reducing construction costs. Attached Figure Description

[0018] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding portions, wherein:

[0019] Figure 1 This is a structural diagram of the tie rod, the pad, and the end screw in a silo tie-bar structure with air-stopping function (part of the steel reinforcement frame).

[0020] Figure 2 This is an overall structural view of a silo with a gas-stopping function and a tie-bar structure (the silo wall concrete is not shown in the figure).

[0021] Figure 3 for Figure 2 A magnified view of area A in the middle;

[0022] Figure 4 This is a schematic diagram of a silo tie-bar structure with air-stopping function combined with the casting template.

[0023] In the diagram, 1 is the casting formwork; 2 is the rebar frame; 3 is the tie rod; 4 is the positioning hole; 5 is the formwork joint; 6 is the end bolt; 7 is the spacer block; and 8 is the first threaded hole. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0025] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0026] Please see Figure 2 A silo tie-bar structure with air-stopping function includes a steel bar frame 2. Since the silo is generally a hollow cylindrical shape with the top capped, the steel bar frame 2 is also set in a hollow cylindrical shape.

[0027] Please see Figure 2 , Figure 3 The structure also includes multiple tie rods 3 connected to the steel reinforcement frame 2 along its width. In one embodiment, the tie rods 3 are arranged in multiple layers vertically, with multiple rods in each layer, resulting in a more organized structure. Furthermore, each layer of tie rods 3 is arranged equidistantly in a circle centered on the central axis of the silo, and each tie rod 3 is radially arranged along a circle centered on the central axis of the silo, resulting in a more uniform structure and better stability. Preferably, the tie rods 3 are fixedly connected to the steel reinforcement frame 2 by welding, which is easy to implement and provides stable results.

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 Both ends of the tie rod 3 extend outward beyond the corresponding sides of the reinforcing steel frame 2. Each end of the tie rod 3 is threadedly connected to a pad 7. After the casting templates 1 on both sides of the reinforcing steel frame 2 are installed, the pads 7 on both sides are located on the inner sides (closely adjacent sides) of the two casting templates 1, so that after concrete is poured, the pads 7 are located on the outer sides of the concrete wall. In one embodiment, the pad 7 is frustum-shaped, with its central axis coinciding with the axial direction of the tie rod 3. The smaller end face faces inward, and the larger end face faces outward. This arrangement provides better air blocking due to the inclined sides of the pad 7.

[0029] Please see Figure 3 , Figure 4 Each of the pad blocks 7 has an end screw 6 on the side away from the tie rod 3, along the axial direction of the tie rod 3. When the casting template 1 is installed, the end screw 6 passes outward and extends beyond the casting template 1. One end of the end screw 6 is threaded to the pad block 7, and the other end is provided with a template joint 5. This configuration allows the casting template 1 to be fixed to the end screw 6 via the template joint 5. After the concrete reaches its design strength, the casting template 1 can be removed by unscrewing the template joint 5 and the end screw 6. This method is simple, convenient, and provides stable results. The removed template joint 5 and end screw 6 can also be reused, reducing material waste. Furthermore, through positioning holes 4 can be pre-drilled in the casting template 1 to provide mounting positions for the tie rod 3, the pad block 7, and the end screw 6. In one embodiment, the template connector 5 is nut-shaped and connected to the end screw 6 by a threaded connection. This configuration allows for more flexible and convenient disassembly, as the template connector 5 can be unscrewed first and then the end screw 6 can be unscrewed.

[0030] Working Principle: The structure proposed in this utility model abandons the traditional PVC sleeve and uses a steel frame 2 as the fixing foundation for the tie rod 3. This structure, while ensuring the tie rod 3's bonding effect, further strengthens the integrity of the tie rod 3 and the silo's concrete structure. This allows the silo to distribute stress more evenly when subjected to external forces such as material pressure and wind, improving structural stability and load-bearing capacity. Pads 7 are provided on both sides of the tie rod 3, acting as air-stopping rings to effectively block airflow paths and significantly improve the silo's airtightness. After the slipform construction is completed, the tie rod 3 is not removed but directly solidified in the silo's concrete structure. This structure eliminates the problem of holes formed by removing the tie rod 3, effectively ensuring the silo's airtightness and creating a complete, sealed storage space to better protect the stored materials. Simultaneously, this structure eliminates the need to remove the tie rod 3 and the subsequent complex hole-sealing process, greatly simplifying the construction process, reducing construction steps, shortening the construction cycle, significantly improving overall construction efficiency, and reducing construction costs.

[0031] Please see Figure 1 , Figure 3 In one embodiment, the pad 7 is provided with a first threaded hole 8 through itself along the axial direction of the pull rod 3. The end screw 6 and the pull rod 3 are respectively threaded to the first threaded hole 8 from both sides. This arrangement allows the connection of the two screws (the end screw 6 and the pull rod 3) to be achieved by opening a single hole, which is relatively easy to implement and has a stable effect.

[0032] In one embodiment, the end screw 6 is galvanized. This design improves the water resistance of the end screw 6, making it less prone to oxidation and rust, and thus more durable.

[0033] A silo with a gas-stopping function includes a silo wall, which includes a silo tie-bar structure and silo wall concrete. The silo tie-bar structure includes a steel frame 2 and a tie rod 3 connected to the steel frame 2 along the width direction. Both ends of the tie rod 3 extend beyond the corresponding side of the steel frame 2. Each end of the tie rod 3 is connected to a pad 7. The pad 7 is threaded with an end screw 6 extending along the width direction of the steel frame 2. The end of the end screw 6 away from the pad 7 is provided with a template joint 5. A positioning space for a casting template 1 is formed between the pad 7 and the template joint 5. The silo wall concrete, the steel frame 2, the tie rod 3, and the pads 7 at both ends of the tie rod 3 are cast and fixed into an integral structure.

[0034] The following is a brief description of the working steps of this utility model:

[0035] S1. Before installing the casting template 1, determine the arrangement position of the tie rod 3 according to the wall thickness and construction requirements, and pre-drill positioning holes 4 on the casting template 1;

[0036] S2. Pass the tie rod 3 through the positioning hole 4 pre-reserved in the casting template 1 and weld it to the steel reinforcement frame 2 with exposed threads reserved on both sides, and ensure that the pad 7 is located in the inner wall position of the casting template 1;

[0037] S3. The end screw 6 is connected to the exposed thread of the pull rod 3 through the pad 7;

[0038] S4. After passing both ends of the end screw 6 through the casting template 1, use the template joint 5 to fix the casting template 1. Tighten the template joint 5 to the outside of the casting template 1 to ensure that the casting template 1 fits tightly and prevents displacement or leakage of grout during concrete pouring.

[0039] S5. After the concrete reaches the design strength, when removing the pouring formwork 1, first unscrew the formwork joint 5, and then unscrew the end screw 6 from the pad 7;

[0040] S6. The tie rod 3 and the pad 7 remain permanently in the concrete wall.

[0041] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0043] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A silo tie-bar structure with air-stopping function, comprising a steel bar frame (2), characterized in that, It includes multiple tie rods (3) connected to the steel frame (2) along the width direction of the steel frame (2). Both ends of the tie rods (3) extend beyond the corresponding side of the steel frame (2). Each end of the tie rod (3) is connected to a pad (7). Each pad (7) has an end screw (6) on the side away from the tie rod (3) along the width direction of the steel frame (2). One end of the end screw (6) is threaded to the pad (7), and the other end is provided with a template joint (5). The pad (7) and the template joint (5) form a positioning space for the casting template (1).

2. The silo tie-bar structure with air-stopping function according to claim 1, characterized in that, The pad (7) is installed at both ends of the pull rod (3) by means of threaded connection.

3. A silo tie-bar structure with air-stopping function according to claim 2, characterized in that, The pad (7) is provided with a first threaded hole (8) through itself along the axial direction of the pull rod (3), and the end screw (6) and the pull rod (3) are respectively threaded to the first threaded hole (8) from both sides.

4. A silo tie-bar structure with air-stopping function according to claim 1, characterized in that, The pad (7) is frustum shaped, with its central axis coinciding with the axial direction of the pull rod (3). The end face with a smaller area faces inward, and the end face with a larger area faces outward.

5. A silo tie-bar structure with air-stopping function according to claim 1, characterized in that, The template joint (5) is nut-shaped and is connected to the end screw (6) by means of threaded connection.

6. A silo tie-bar structure with air-stopping function according to claim 1, characterized in that, The tie rod (3) is fixedly connected to the steel frame (2) by welding.

7. A silo tie-bar structure with air-stopping function according to claim 1, characterized in that, The tie rod (3) is arranged in multiple layers along the vertical direction, and each layer is provided with multiple rods.

8. A silo tie-bar structure with air-stopping function according to claim 7, characterized in that, Each of the tie rods (3) in each layer is arranged equidistantly around the central axis of the silo, and each tie rod (3) is arranged radially along a circle centered on the central axis of the silo.

9. A silo with a gas-stopping function, comprising a silo wall, the silo wall comprising a silo tie-bar structure and silo wall concrete, the silo tie-bar structure comprising a steel reinforcement frame (2), characterized in that: The silo tie bar structure also includes a tie rod (3) connected to the steel frame (2) along the width direction of the steel frame (2). Both ends of the tie rod (3) extend beyond the corresponding side of the steel frame (2). Each end of the tie rod (3) is connected to a pad (7). The pad (7) is threaded with an end screw (6) extending along the width direction of the steel frame (2). The end of the end screw (6) away from the pad (7) is provided with a template joint (5). The pad (7) and the template joint (5) form a positioning space for the casting template (1). The silo wall concrete is cast and fixed to the steel frame (2), the tie rod (3) and the pads (7) at both ends of the tie rod (3) into an integral structure.

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