Splicing type anti-falling frame for construction of squat silo dome

Abstract

The utility model relates to the technical field of squat silo dome construction, and particularly discloses a spliced anti-falling frame for squat silo dome construction, which comprises a central column, a circular column is welded at the upper end of the central column, a plurality of cross beams distributed in a circumferential array are arranged on the outer wall of the circular column, a plurality of limiting grooves distributed in a circumferential array are formed in the outer wall of the circular column, and the cross beams are connected with the limiting grooves. Limiting blocks fixedly connected with the multiple cross beams are inserted into the multiple limiting grooves in a matched mode, and the lower ends of the multiple cross beams are fixedly connected with fixing plates. Meanwhile, the fan-shaped supporting plate and the upper end of the cross beam jointly construct a continuous and flat rigid working face, so that the fan-shaped supporting plate is prevented from moving in the horizontal direction, hidden danger points which are prone to being missed by people are prevented from being formed, and objects such as construction tools are prevented from falling off; the arc-shaped protection plates form a continuous protection barrier surrounding the edge of the working face, and high-altitude falling caused by body gravity center shifting, accidental collision and the like is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of shallow circular dome construction technology, and specifically discloses a spliced ​​anti-fall frame for shallow circular dome construction. Background Technology

[0002] As the core facility for storing bulk materials, shallow circular silos typically employ a cast-in-place reinforced concrete curved structure for their domes. During construction, temporary frames are required to support formwork, tie reinforcing bars, and pour concrete at heights.

[0003] Traditional construction frames typically place support plates on horizontal bars. Since these plates rely solely on gravity without any restraint mechanisms, they are prone to horizontal displacement under dynamic loads such as personnel movement, creating potential pitfalls. Furthermore, the large gaps between the support plates allow tools and other items to fall through, posing a risk of injury to personnel below. Additionally, existing frames lack reliable safety features at the edges of the work area. When workers are operating near the frame's edges, the lack of effective fall protection means that if their center of gravity exceeds the frame's support range, they are highly susceptible to falling from the edges, severely threatening their lives.

[0004] Therefore, a modular fall arrestor frame is needed for the construction of shallow circular dome structures to solve the above problems. Utility Model Content

[0005] This utility model proposes a spliced ​​fall arrest frame for the construction of shallow circular dome, which prevents the fan-shaped support plate from moving horizontally, avoids the formation of hidden danger points where people can easily fall, and prevents construction tools and other items from falling; at the same time, the setting of multiple arc-shaped protective plates prevents workers from falling from the edges of multiple crossbeams, significantly improving safety performance.

[0006] This utility model is implemented as follows: a spliced ​​anti-fall frame for the construction of a shallow circular dome includes a central column, a circular column welded to the upper end of the central column, a plurality of horizontal beams arranged in a circular array on the outer wall of the circular column, a plurality of limiting grooves arranged in a circular array on the outer wall of the circular column, limiting blocks that are respectively fixedly connected to the plurality of horizontal beams are inserted into the interior of the plurality of limiting grooves, and fixing plates are fixedly connected to the lower ends of the plurality of horizontal beams, and the plurality of fixing plates are fixedly connected to the circular column by a plurality of first bolts;

[0007] A fall protection mechanism is provided between the multiple crossbeams. The fall protection mechanism includes multiple fan-shaped support plates disposed between each two adjacent crossbeams. Positioning grooves are provided on both sides of the outer wall of the multiple crossbeams. The multiple fan-shaped support plates extend into the corresponding positioning grooves and fit against the inner wall of the positioning grooves. An arc-shaped protective plate extending above each two adjacent crossbeams is provided.

[0008] An auxiliary stabilizing mechanism is provided on the underside of multiple crossbeams.

[0009] As a preferred embodiment of the spliced ​​anti-fall frame for the construction of shallow circular dome of this utility model, the auxiliary stabilizing mechanism includes an annular stabilizing ring that fits against the lower ends of multiple crossbeams. The annular stabilizing ring is fixedly connected to the multiple crossbeams by multiple second bolts. The lower end of the annular stabilizing ring is fixedly connected to multiple auxiliary support rods distributed in a circular array.

[0010] As a preferred embodiment of the spliced ​​fall arrestor frame for the construction of shallow circular dome of this utility model, each of the multiple arc-shaped protective plates has two connecting plates fixedly connected to its outer wall, and the connecting plates are fixedly connected to the crossbeam by a third bolt.

[0011] As a preferred embodiment of the spliced ​​anti-fall frame for the construction of shallow circular dome of this utility model, the limiting groove and the limiting block are mutually matched dovetail-shaped structures.

[0012] As a preferred embodiment of the spliced ​​anti-fall frame for the construction of shallow circular dome of this utility model, multiple fan-shaped support plates between each two adjacent crossbeams are in contact with each other.

[0013] As a preferred embodiment of the spliced ​​anti-fall frame for the construction of the shallow circular dome of this utility model, the upper surfaces of the plurality of fan-shaped support plates and the upper surfaces of the plurality of crossbeams are on the same horizontal plane.

[0014] As a preferred embodiment of the spliced ​​anti-fall frame for the construction of the shallow circular dome of this utility model, the lower ends of the plurality of auxiliary support rods and the central column are all fixedly connected to support plates.

[0015] The beneficial effects of this utility model are:

[0016] 1. The two ends of the fan-shaped support plate between two adjacent crossbeams are respectively embedded in the positioning groove of the outer wall of the crossbeam. The inner wall of the positioning groove is tightly fitted with the edge of the fan-shaped support plate. After all the fan-shaped support plates are installed, the outermost fan-shaped support plates will fit with the inner wall of the positioning groove to form a horizontal displacement limiting structure. At the same time, the fan-shaped support plate and the upper end of the crossbeam jointly construct a continuous and flat rigid working surface, thereby preventing the fan-shaped support plate from moving horizontally, avoiding the formation of hidden danger points that are easy for people to step into, and preventing construction tools and other items from falling.

[0017] 2. The arc-shaped protective plate is fixed between the crossbeams to form a continuous protective barrier around the edge of the working surface. When workers are working at the edge of the frame, the arc-shaped protective plate effectively prevents falls from heights caused by shifts in body center of gravity or accidental collisions through physical blocking. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a front sectional view of the spliced ​​anti-fall frame for the construction of a shallow circular dome of this utility model.

[0020] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a partial top sectional view of the present invention;

[0022] Figure 4 For the present utility model Figure 3 Enlarged view at point B in the middle;

[0023] Figure 5 This is a partial structural diagram of the present invention.

[0024] The markings in the diagram are: 1. Central column; 2. Circular column; 3. Limiting groove; 4. Limiting block; 5. Crossbeam; 6. Fixing plate; 7. First bolt; 8. Positioning groove; 9. Fan-shaped support plate; 10. Arc-shaped protective plate; 11. Connecting plate; 12. Third bolt; 13. Annular stabilizing ring; 14. Auxiliary support rod; 15. Second bolt. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0027] Please see Figure 1-5 The prefabricated anti-fall frame for the construction of a shallow circular dome includes a central column 1, a circular column 2 welded to the upper end of the central column 1, multiple horizontal beams 5 arranged in a circular array on the outer wall of the circular column 2, multiple limiting grooves 3 arranged in a circular array on the outer wall of the circular column 2, and limiting blocks 4 that are fixedly connected to the multiple horizontal beams 5 respectively inserted into the interior of the multiple limiting grooves 3. Fixing plates 6 are fixedly connected to the lower ends of the multiple horizontal beams 5, and the multiple fixing plates 6 are fixedly connected to the circular column 2 by multiple first bolts 7.

[0028] A fall protection mechanism is provided between multiple crossbeams 5. The fall protection mechanism includes multiple fan-shaped support plates 9 set between each two adjacent crossbeams 5. Positioning grooves 8 are opened on both sides of the outer wall of the multiple crossbeams 5. The multiple fan-shaped support plates 9 extend into the corresponding positioning grooves 8 and fit against the inner wall of the positioning grooves 8. An arc-shaped protective plate 10 extending above each two adjacent crossbeams 5 is provided.

[0029] Auxiliary stabilizing mechanisms are provided on the underside of multiple crossbeams 5.

[0030] In this embodiment: the central column 1 serves as the core load-bearing component of the frame, and the circular column 2 welded to its upper end provides the mounting base for the circumferential array of the crossbeam 5. The limiting groove 3 on the outer wall of the circular column 2 and the limiting block 4 of the crossbeam 5 form a dovetail-shaped plug-in fit. This structure restricts the radial and circumferential displacement of the crossbeam 5 through geometric constraints, ensuring the initial positioning of the crossbeam 5. Subsequently, the fixing plate 6 at the lower end of the crossbeam 5 is fastened to the circular column 2 by the first bolt 7, forming a double fixing mechanism, so that the crossbeam 5 is stably fixed to the outer periphery of the circular column 2.

[0031] The two ends of the fan-shaped support plate 9 between each pair of adjacent crossbeams 5 are respectively embedded in the positioning groove 8 on the outer wall of the crossbeam 5. The inner wall of the positioning groove 8 is tightly fitted with the edge of the fan-shaped support plate 9. After multiple fan-shaped support plates 9 are installed, the outermost multiple fan-shaped support plates 9 will also fit with the inner wall of the positioning groove 8, forming a horizontal displacement limiting structure. The multiple fan-shaped support plates 9 and the upper ends of multiple crossbeams 5 form a continuous and flat rigid working surface. In this way, the horizontal movement of the fan-shaped support plates 9 is prevented, avoiding the formation of hidden danger points that are easy for people to step into, and preventing construction tools and other items from falling.

[0032] The arc-shaped protective plate 10 is fixed between multiple crossbeams 5 to form a continuous protective barrier around the edge of the working surface. When workers are working in the edge area of ​​the frame, the arc-shaped protective plate 10 provides a barrier to effectively prevent falls from heights caused by shifts in body center of gravity or accidental collisions.

[0033] As a technical optimization of this utility model, the auxiliary stabilizing mechanism includes an annular stabilizing ring 13 that fits against the lower ends of multiple crossbeams 5. The annular stabilizing ring 13 is fixedly connected to the multiple crossbeams 5 by multiple second bolts 15. The lower end of the annular stabilizing ring 13 is fixedly connected to multiple auxiliary support rods 14 arranged in a circular array.

[0034] In this embodiment: the annular stabilizing ring 13 below the crossbeam 5 is fixed to the lower end of each crossbeam 5 by the second bolt 15, forming a closed annular support structure, which improves the stability between multiple crossbeams 5. The auxiliary support rods 14 at the lower end of the annular stabilizing ring 13 are distributed in a circular array, and together with the support plate at the lower end of the central column 1, they form a multi-point support system, avoiding local instability caused by uneven force at a single point in the traditional frame.

[0035] As a technical optimization of this utility model, two connecting plates 11 are fixedly connected to the outer walls of multiple arc-shaped protective plates 10, and the connecting plates 11 are fixedly connected to the crossbeam 5 by a third bolt 12.

[0036] In this embodiment, the prefabricated connecting plate 11 is fixedly connected to the crossbeam 5 by the third bolt 12. The bolt connection is detachable and replaceable, which is convenient for repeated use and improves the material utilization rate compared with the traditional welded protective plate.

[0037] As a technical optimization of this utility model, the limiting groove 3 and the limiting block 4 are dovetail-shaped structures that match each other.

[0038] In this embodiment, the limiting groove 3 and the limiting block 4 are dovetail-shaped structures that match each other, thereby preventing the limiting block 4 from detaching from the inside of the limiting groove 3.

[0039] As a technical optimization of this utility model, multiple fan-shaped support plates 9 between each pair of adjacent crossbeams 5 are in contact with each other.

[0040] In this embodiment: because multiple fan-shaped support plates 9 between each pair of adjacent crossbeams 5 are in contact with each other, the gaps between the fan-shaped support plates 9 are eliminated, preventing small items from falling.

[0041] As a technical optimization of this utility model, the upper surfaces of the multiple fan-shaped support plates 9 are on the same horizontal plane as the upper surfaces of the multiple crossbeams 5.

[0042] In this embodiment, the upper surfaces of multiple fan-shaped support plates 9 are flush with the crossbeam 5, avoiding the risk of people tripping or falling into the air due to the height difference of traditional support plates.

[0043] As a technical optimization of this utility model, the lower ends of the multiple auxiliary support rods 14 and the central column 1 are all fixedly connected to support plates.

[0044] In this embodiment, the support plate transforms the single-point concentrated load into a surface load, thereby reducing the foundation pressure and effectively preventing the soft soil foundation from sinking.

[0045] The working principle and usage process of this utility model: The central column 1 serves as the core load-bearing component of the frame. The circular column 2 welded to its upper end provides the mounting base for the circumferential array of the crossbeam 5. The limiting groove 3 on the outer wall of the circular column 2 and the limiting block 4 of the crossbeam 5 form a dovetail-shaped plug-in fit. This structure restricts the radial and circumferential displacement of the crossbeam 5 through geometric constraints, ensuring the initial positioning of the crossbeam 5. Subsequently, the fixing plate 6 at the lower end of the crossbeam 5 is fastened to the circular column 2 by the first bolt 7, forming a double fixing mechanism, so that the crossbeam 5 is stably fixed to the outer periphery of the circular column 2.

[0046] The annular stabilizing ring 13 below the crossbeam 5 is fixed to the lower end of each crossbeam 5 by the second bolt 15, forming a closed annular support structure, which improves the stability between multiple crossbeams 5. The auxiliary support rods 14 at the lower end of the annular stabilizing ring 13 are distributed in a circular array, and together with the support plate at the lower end of the central column 1, they form a multi-point support system, avoiding local instability caused by uneven force at a single point in the traditional frame.

[0047] The two ends of the fan-shaped support plate 9 between each pair of adjacent crossbeams 5 are respectively embedded in the positioning groove 8 on the outer wall of the crossbeam 5. The inner wall of the positioning groove 8 is tightly fitted with the edge of the fan-shaped support plate 9. After multiple fan-shaped support plates 9 are installed, the outermost multiple fan-shaped support plates 9 will also fit with the inner wall of the positioning groove 8, forming a horizontal displacement limiting structure. The multiple fan-shaped support plates 9 and the upper ends of multiple crossbeams 5 form a continuous and flat rigid working surface. In this way, the horizontal movement of the fan-shaped support plates 9 is prevented, avoiding the formation of hidden danger points that are easy for people to step into, and preventing construction tools and other items from falling.

[0048] The arc-shaped protective plate 10 is fixed between multiple crossbeams 5 by the connecting plate 11 and the third bolt 12, forming a continuous protective barrier around the edge of the working surface. When workers are working in the edge area of ​​the frame, the arc-shaped protective plate 10 provides a barrier, effectively preventing falls from heights caused by shifting body center of gravity, accidental collisions, etc.

[0049] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A modular anti-fall frame for the construction of a shallow circular dome, comprising a central column (1), characterized in that: The upper end of the central column (1) is welded with a circular column (2). The outer wall of the circular column (2) is provided with a plurality of crossbeams (5) arranged in a circular array. The outer wall of the circular column (2) is provided with a plurality of limiting grooves (3) arranged in a circular array. Each of the plurality of limiting grooves (3) is fitted with a limiting block (4) that is fixedly connected to the plurality of crossbeams (5). The lower end of each of the plurality of crossbeams (5) is fixedly connected with a fixing plate (6). The plurality of fixing plates (6) are fixedly connected to the circular column (2) by a plurality of first bolts (7). A fall protection mechanism is provided between the multiple crossbeams (5). The fall protection mechanism includes multiple fan-shaped support plates (9) provided between each two adjacent crossbeams (5). Positioning grooves (8) are provided on both sides of the outer wall of the multiple crossbeams (5). The multiple fan-shaped support plates (9) extend into the corresponding positioning grooves (8) and fit against the inner wall of the positioning grooves (8). An arc-shaped protective plate (10) extending above each two adjacent crossbeams (5) is provided. An auxiliary stabilizing mechanism is provided on the lower side of each of the beams (5).

2. The spliced ​​fall arrestor frame for shallow circular dome construction according to claim 1, characterized in that: The auxiliary stabilizing mechanism includes an annular stabilizing ring (13) that fits against the lower end of multiple crossbeams (5). The annular stabilizing ring (13) is fixedly connected to the multiple crossbeams (5) by multiple second bolts (15). The lower end of the annular stabilizing ring (13) is fixedly connected to multiple auxiliary support rods (14) arranged in a circular array.

3. The spliced ​​fall arrestor frame for construction of shallow circular dome as described in claim 1, characterized in that: Two connecting plates (11) are fixedly connected to the outer walls of the multiple arc-shaped protective plates (10), and the connecting plates (11) are fixedly connected to the crossbeam (5) by a third bolt (12).

4. The spliced ​​fall arrestor frame for construction of a shallow circular dome according to claim 1, characterized in that: The limiting groove (3) and the limiting block (4) are dovetail-shaped structures that match each other.

5. The spliced ​​fall arrestor frame for construction of a shallow circular dome according to claim 1, characterized in that: Multiple sector-shaped support plates (9) between each pair of adjacent crossbeams (5) are in contact with each other.

6. The spliced ​​fall arrestor frame for construction of a shallow circular dome according to claim 1, characterized in that: The upper surfaces of the multiple fan-shaped support plates (9) are on the same horizontal plane as the upper surfaces of the multiple crossbeams (5).

7. The spliced ​​fall arrestor frame for construction of shallow circular dome as described in claim 2, characterized in that: The lower ends of the multiple auxiliary support rods (14) and the central column (1) are all fixedly connected to support plates.

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