Fabricated foundation pit protection device
The foundation pit protection device using fully prefabricated metal components solves the problems of long construction time, high cost, and poor flexibility of foundation pit protection devices. It enables rapid disassembly and assembly, meets the protection needs of different construction stages, and improves construction efficiency and safety.
Patent Information
- Application Number
- CN202520460057.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing foundation pit protection devices for building construction suffer from problems such as long construction time, high cost, and poor flexibility. In particular, they are difficult to dynamically adjust when the foundation pit construction stage changes, leading to increased costs of repeated construction.
It adopts fully prefabricated metal components, including foundation components, columns, guardrails and galvanized iron sheets. Through bolt connections and rubber waterstops, it can be quickly disassembled and assembled to meet the protection needs of different construction stages.
It achieves safety protection around the foundation pit, prevents falls and water accumulation, improves construction efficiency, reduces material waste, adapts to changes in different construction stages, and reduces the cost of repeated construction.
Smart Images
Figure CN223893928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and specifically to a prefabricated foundation pit protection device. Background Technology
[0002] Currently, foundation pit protection in construction projects generally uses concrete foundations or temporary fencing, which has problems such as long construction time, high cost, and poor flexibility. These problems are mainly manifested in the following ways:
[0003] First, traditional protective structures mostly use on-site welding or concrete pouring, which results in long construction cycles (average 3-5 days / 100 meters) and material waste due to non-reusability (loss rate of over 40%). Second, when the excavation stage of the foundation pit changes (such as earthwork excavation → main structure → backfilling of the trench), the existing protective system is difficult to adjust dynamically, resulting in increased costs from repeated construction. Utility Model Content
[0004] To address the technical problems in the existing technology, this utility model provides a prefabricated foundation pit protection device. It adopts fully prefabricated metal component construction, which can not only meet the safety protection function of the foundation pit perimeter, preventing the risk of foundation pit falls and falling objects from heights, but also prevent water from the surrounding roads from flowing into the foundation pit. At the same time, according to different stages of foundation pit construction, this prefabricated component can be arbitrarily disassembled and combined to meet different construction protection usage scenarios.
[0005] The technical solution includes a base component and multiple columns. The bottom of the base component is installed on a level and hard ground around the foundation pit by a fixing component. The multiple columns are spaced apart along the length of the base component. The columns are detachably connected to the top of the base component by bolts. A guardrail is installed between two adjacent columns. The base component includes an upper angle steel structure and a lower angle steel structure. The upper angle steel structure, the lower angle steel structure, and the two are connected by multiple square tubes to form a cuboid structure. The surface of the cuboid structure is covered with galvanized iron sheet.
[0006] Furthermore, a rubber waterstop is laid between the cuboid structure and the ground.
[0007] Furthermore, the posts, guardrails, and galvanized iron sheets are all coated with red and white paint.
[0008] Furthermore, the top of the upper angle steel structure is provided with multiple positioning bosses at intervals, and each of the multiple positioning bosses corresponds to one of the multiple columns, with the columns inserted into the positioning bosses.
[0009] Furthermore, a water guide channel is provided inside the cuboid structure along its length direction. The water guide channel is located on the side away from the foundation pit. Both ends of the water guide channel are connected to the external drainage system through water guide pipes. Multiple water inlet holes connecting the water guide channel are opened on the galvanized iron sheet.
[0010] Furthermore, both ends of the water guide channel are equipped with water-stop plates that match the cross-sectional shape of the water guide channel. The water-stop plates are sealed to the water guide channel, and the water-stop plates are located inside the water guide pipe. The height of the water-stop plates is lower than the depth of the water guide channel.
[0011] Beneficial effects:
[0012] 1. In this utility model, the setting of columns, guardrails, upper angle steel structure, lower angle steel structure and galvanized iron sheet can not only meet the safety protection function of the foundation pit, prevent passing motor vehicles from getting too close to the edge of the foundation pit and causing collapse, prevent the risk of foundation pit falls and falling objects from heights, but also prevent water from the surrounding roads from flowing into the foundation pit. At the same time, it can be arbitrarily disassembled and combined according to different stages of foundation pit construction to meet different construction protection use scenarios, and the disassembly and assembly are convenient and quick, which can improve construction efficiency.
[0013] 2. In this utility model, the installation of rubber waterstops can improve the waterproofing effect and prevent water from seeping from the outside of the foundation pit into the inside; the installation of red and white paint on the posts, guardrails and galvanized iron sheets can improve the warning effect.
[0014] 3. In this utility model, the positioning boss facilitates quick positioning of the column and allows for direct bolt locking of the column without the need for auxiliary support, thereby improving installation efficiency.
[0015] 4. In this utility model, the water guide channel and water inlet hole can guide some of the water flowing to the foundation component into the drainage system through the water guide pipe. On the one hand, this can improve the water blocking ability of the protective device, especially when the water flow is large, it can prevent water from entering the foundation pit from the top of the foundation component. On the other hand, it can also reduce the impact force of the water flow on the foundation component. The water stop plate can ensure that some water always remains in the water guide channel, thereby using the weight of the water to improve the stability of the foundation component. Combined with the setting of the water stop plate position and height limitation, it can ensure that when the water in the water guide channel reaches a certain value, it can enter the drainage system from the top of the water stop plate through the water guide pipe. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the basic component installation structure of this utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Basic components; 11. Upper angle steel structure; 12. Lower angle steel structure; 2. Columns; 3. Guardrails; 4. Square tubes; 5. Galvanized iron sheets; 51. Water inlet; 6. Rubber waterstop; 7. Positioning boss; 8. Water guide channel; 9. Waterstop plate. Detailed Implementation
[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0022] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0027] This utility model provides a prefabricated foundation pit protection device, such as... Figure 1 and Figure 2As shown, the structure includes a base component 1 and multiple columns 2. The bottom of the base component 1 is installed on a level and hard ground around the foundation pit via a fixing component, which can be an expansion bolt or other similar structure to ensure stability. The multiple columns 2 are spaced apart along the length of the base component 1. The columns 2 are detachably connected to the top of the base component 1 by bolts, and the connection between the columns 2 and the top of the base component 1 is perpendicular. A guardrail 3 is installed between two adjacent columns 2. The base component 1 includes an upper angle steel structure 11 and a lower angle steel structure 12. The upper angle steel structure 11, the lower angle steel structure 12, and the space between them are connected by multiple square tubes 4 to form a cuboid structure. The surface of the cuboid structure is covered with galvanized iron sheet 5. The length, height, and width of the base component 1 can be adjusted according to site requirements to adapt to foundation pits of different depths and widths. In addition, the base component 1 needs to be durable and safe to ensure turnover rate.
[0028] In this embodiment, the installation of columns 2, guardrails 3, upper angle steel structure 11, lower angle steel structure 12, and galvanized iron sheet 5 not only fulfills the safety protection function around the foundation pit, preventing passing motor vehicles from getting too close to the edge of the foundation pit and causing collapse, and preventing the risk of foundation pit falls and falling objects from heights, but also prevents water from the surrounding roads from flowing into the foundation pit. At the same time, it can be arbitrarily disassembled and combined according to different stages of foundation pit construction to meet different construction protection scenarios, and the disassembly and assembly are convenient and quick, which can improve construction efficiency.
[0029] In this utility model, preferably, such as Figure 1 and Figure 2 As shown, a rubber waterstop 6 is laid between the cuboid structure and the ground; the column 2, guardrail 3 and galvanized iron sheet 5 are all sprayed with red and white paint.
[0030] In this embodiment, the installation of the rubber waterstop 6 can improve the waterproofing effect and prevent water from seeping into the pit from the outside; the installation of red and white paint on the posts 2, guardrails 3 and galvanized iron sheets 5 can improve the warning effect.
[0031] In this utility model, preferably, such as Figure 1 and Figure 2 As shown, the top of the upper angle steel structure 11 is provided with multiple positioning protrusions 7 at intervals, and the multiple positioning protrusions 7 correspond one-to-one with the multiple columns 2, and the columns 2 are inserted into the positioning protrusions 7.
[0032] In this embodiment, the positioning boss 7 facilitates quick positioning of the column 2, and the column 2 can be directly bolted without auxiliary support, improving installation efficiency. During installation, the construction personnel can use the foolproof design between the positioning boss 7 and the column 2 to quickly mate the column 2 with the positioning boss 7 and then directly bolt it. This process can be completed by a single person.
[0033] In this utility model, preferably, such as Figure 1 and Figure 2 As shown, a water guide channel 8 is provided along the length of the cuboid structure. The water guide channel 8 is located on the side away from the foundation pit. Both ends of the water guide channel 8 are connected to the external drainage system through water guide pipes. The galvanized iron sheet 5 has multiple water inlet holes 51 that connect to the water guide channel 8. In actual use, a connecting hose or inclined plane can be designed to connect the water inlet hole 51 to the water guide channel 8. To prevent water backflow, a one-way valve or other similar structure can be installed in the water inlet hole 51 to ensure that the water flow direction is from the outside to the water guide channel 8.
[0034] In this embodiment, by setting up the water guide channel 8 and the water inlet hole 51, some of the water flowing to the foundation component 1 can be guided into the drainage system through the water guide pipe. On the one hand, it can improve the water blocking ability of the protective device, especially when the water flow is large, it can prevent water from entering the pit from the top of the foundation component 1. On the other hand, it can also reduce the impact force of the water flow on the foundation component 1.
[0035] In this utility model, preferably, such as Figure 1 and Figure 2 As shown, both ends of the water guide channel 8 are equipped with water-stop plates 9 that match the cross-sectional shape of the water guide channel 8. The water-stop plates 9 are sealed to the water guide channel 8, and the water-stop plates 9 are located inside the water guide pipe. The height of the water-stop plates 9 is lower than the depth of the water guide channel 8.
[0036] In this embodiment, by setting the waterstop plate 9, it can be ensured that some water always remains in the water guide channel 8, thereby using the weight of the water to improve the stability of the base component 1. Combined with the setting of the position and height limitation of the waterstop plate 9, it can be ensured that when the water in the water guide channel 8 reaches a certain value, it can enter the drainage system from the top of the waterstop plate 9 through the water guide pipe.
[0037] The specific construction steps include:
[0038] like Figure 1 and Figure 2As shown, the process is as follows: lay rubber waterstop 6 on the horizontal hard ground around the foundation pit → assemble foundation component 1 (the length of the horizontal and vertical square tubes 4 can be adjusted according to the actual situation) → fix foundation component 1 (place foundation component 1 on top of rubber waterstop 6 and fix it with expansion bolts) → assemble column 2 → install galvanized iron sheet 5 protective layer → assemble guardrail 3.
[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A prefabricated foundation pit protection device, comprising a base component (1) and multiple columns (2), wherein the bottom of the base component (1) is installed on a horizontal and hard ground around the foundation pit by a fixing component, the multiple columns (2) are spaced apart along the length of the base component (1), the columns (2) are detachably connected to the top of the base component (1) by bolts, and a guardrail (3) is installed between adjacent columns (2), characterized in that, The basic component (1) includes an upper angle steel structure (11) and a lower angle steel structure (12). The upper angle steel structure (11), the lower angle steel structure (12), and the two are connected by multiple square tubes (4) to form a cuboid structure. The surface of the cuboid structure is covered with galvanized iron sheet (5).
2. The prefabricated foundation pit protection device according to claim 1, characterized in that, A rubber waterstop strip (6) is laid between the cuboid structure and the ground.
3. The prefabricated foundation pit protection device according to claim 2, characterized in that, The posts (2), guardrails (3), and galvanized iron sheets (5) are all painted with red and white paint.
4. The prefabricated foundation pit protection device according to claim 3, characterized in that, The top of the upper angle steel structure (11) is provided with multiple positioning bosses (7) at intervals. Each of the multiple positioning bosses (7) corresponds to one of the multiple columns (2), and the columns (2) are inserted into the positioning bosses (7).
5. A prefabricated foundation pit protection device according to any one of claims 1 to 4, characterized in that, The rectangular structure is provided with a water guide channel (8) along its length. The water guide channel (8) is located on the side away from the foundation pit. Both ends of the water guide channel (8) are connected to the external drainage system through water guide pipes. The galvanized iron sheet (5) is provided with multiple water inlet holes (51) that connect to the water guide channel (8).
6. A prefabricated foundation pit protection device according to claim 5, characterized in that, Both ends of the water guide channel (8) are equipped with water-stop plates (9) that match the cross-sectional shape of the water guide channel (8). The water-stop plates (9) are sealed to the water guide channel (8), and the water-stop plates (9) are located inside the water guide pipe. The height of the water-stop plates (9) is lower than the depth of the water guide channel (8).