A pit edge mounting base and construction method

Abstract

The application relates to the technical field of equipment installation, and particularly discloses a pit edge mounting base and a construction method, which comprises a pre-buried plate, the pre-buried plate is installed on the bottom of the inner wall of a pouring groove arranged at the edge of a pit body, a supporting piece is fixedly installed on the pre-buried plate, a guard angle steel is installed on the top of the supporting piece, the top of the guard angle steel is flush with the top of the pouring groove, an angle steel supporting lug is fixedly connected to the side of the guard angle steel close to the pit, a gap is formed between the upper surface of the angle steel supporting lug and the upper surface of the guard angle steel, and the gap is used for mounting a pit cover plate; the pre-buried plate is used for connecting the structure of the pit foundation, the top of the pre-buried plate is provided with a civil engineering formwork during the civil engineering process, so that the pre-buried plate can be effectively leveled through the civil engineering formwork; and the pre-buried plate is arranged in a plane, after pouring the foundation, no protrusion is formed, and compared with the inclined steel bar used as the pre-buried piece, the safety hidden danger of tripping the installation personnel is eliminated.

Description

Technical Field

[0001] This invention relates to the field of equipment installation technology, and specifically to a pit edge mounting base and construction method. Background Technology

[0002] In the construction of intelligent warehouses, some equipment needs to be installed in pits. In actual construction, angle steel lugs are welded to the pit's edge angle steel to fix the pit cover. The edge angle steel is welded to the inclined pre-embedded steel bars to form a fixed connection with the foundation, effectively transferring the weight of the pit cover and the equipment. However, during construction, the height of the inclined steel bars is not easy to control, especially the inclined steel bars installed on multiple edge angle steels along the edge of the pit. It is difficult to ensure that different groups of inclined steel bars are on the same plane, which is greatly affected by the civil engineering. Moreover, the inclined steel bars pose a safety hazard of tripping the installation personnel during construction. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a pit edge mounting base and construction method.

[0004] The pit edge mounting base of the present invention includes: An embedded plate is installed at the bottom of the inner wall of a casting trench opened at the edge of the pit body; The support is fixedly installed on the embedded plate and has a protective angle steel on the top, the top of which is flush with the top of the casting groove. Angle steel brackets are fixedly connected to the side of the edge angle steel near the pit, and a height difference is formed between the upper surface of the angle steel brackets and the upper surface of the edge angle steel, which is used to install the pit cover.

[0005] In some embodiments, the height of the edge guard angle steel is equal to the distance a between the embedded plate and the top of the casting groove.

[0006] In some embodiments, the casting groove is an annular groove formed by the outward offset of the edge of the pit body.

[0007] In some embodiments, the casting groove is a rectangular groove independently opened at the edge of the pit body, and the top of the rectangular groove and the side near the edge of the pit body are open, and the width of the rectangular groove is equal to the width of the embedded plate.

[0008] In some embodiments, the edge of the protective angle steel that contacts the embedded plate is fixedly connected; and the length of the protective angle steel is equal to the width of the embedded plate.

[0009] In some embodiments, the inner side of the edge guard steel coincides with the edge of the pit body.

[0010] In some embodiments, the inner side of the protective angle steel is provided with a distance b between it and the edge of the pit body, and the width of the distance b is greater than or equal to the width of the upper surface of the angle steel support lug.

[0011] In some embodiments, the inner wall of the casting trough and the inner wall of the edge guard steel form a casting cavity, and a casting layer is provided in the casting cavity.

[0012] In some embodiments, the support member is a connecting angle steel, and the top and bottom of the connecting angle steel are welded to the top of the inner wall of the edge guard angle steel and the embedded plate, respectively; and both sides of the connecting angle steel are fixedly connected to the inner side of the edge guard angle steel to form a triangular support structure.

[0013] A construction method for installing a base at the edge of a pit, comprising the following steps: S1. During the construction of the foundation pit, the embedded plate is first placed in the corresponding position, and then the foundation pit and the pouring groove for installing the edge protection angle steel are formed on the ground through the civil engineering formwork. S2. After the concrete has solidified, remove the civil engineering formwork and weld the edge protection angle steel onto the embedded plate using the support components. S3. Then, the civil engineering formwork is used to form a casting cavity, and cement is poured into the casting cavity to form a casting layer, thereby ensuring that the structure is flush with the ground. S4. Then, weld angle steel lugs onto the side of the edge angle steel near the pit. When welding, pay attention to the drop between the angle steel lugs and the top of the pouring trough and the thickness of the pit cover 11 to avoid the pit cover 11 protruding from the pouring trough.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this embodiment of the invention, because the structure connected to the pit foundation is set with a pre-embedded plate, and the top of the pre-embedded plate will be set with a civil engineering formwork during the civil construction process, the pre-embedded plate can be effectively leveled by the civil engineering formwork; and because the pre-embedded plate is set with a plane, it will not form a protrusion after the foundation is poured, which eliminates the safety hazard of tripping the installation personnel compared with using inclined steel bars as pre-embedded parts.

[0015] 2. By setting the casting trough into a rectangular trough, the area of ​​the casting trough is effectively reduced. Compared with a ring trough, the probability of workers stepping into the casting trough is reduced, and the probability of workers coming into contact with the side of the edge angle steel is effectively eliminated, thereby avoiding tripping workers and effectively reducing the safety hazards caused by the structure.

[0016] 3. The length of the edge protection angle steel of the present invention is equal to the width of the embedded plate and the rectangular groove. With the setting of the casting cavity, the casting material can be prevented from flowing from the bottom or sides of the edge protection angle steel to the side of the edge protection angle steel closer to the pit, thereby preventing the casting material from sticking to the installation surface of the edge protection angle steel and affecting the subsequent installation of the angle steel lug.

[0017] 4. By setting the spacing b, this invention effectively prevents the angle steel brackets from protruding beyond the edge of the pit body, thus preventing installers or maintenance personnel from being scraped by the angle steel brackets when entering the pit, thereby further reducing safety hazards.

[0018] 5. Compared with existing technical solutions, this invention addresses the problems of insufficient adjustment margin for pit cover installation, needing to cut the pit cover, or having a large gap between the pit cover and the protective angle steel when there are civil engineering errors in the size of the pit. This invention can adjust the specific position of the protective angle steel and the support components welded to the embedded plate according to the civil engineering errors, eliminating the problems of cutting the pit cover or having a large gap, and optimizing the construction steps. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure in the background art; Figure 2 This is a schematic diagram of a structure with protruding reinforcing bars in the background art; Figure 3 This is a schematic diagram of the civil engineering formwork construction structure for the pouring trench in Example 1; Figure 4 This is a schematic diagram of the civil engineering formwork construction structure for the pouring cavity in Example 1; Figure 5 This is a schematic diagram of the front section structure of the installation base at the edge of the pit in Example 1 after installation. Figure 6 This is a top-section diagram of the installation base at the edge of the pit in Embodiment 1 after installation. Figure 7 This is a top-section diagram of the installation structure of the pit edge mounting base after the installation is completed in Example 2; Figure 8 This is a schematic diagram of the front section structure of the installation base at the edge of the pit in Example 2 after installation.

[0020] In the figure: 1. Embedded plate; 2. Support component; 3. Edge guard angle steel; 4. Angle steel lug; 5. Drop; 6. Spacing a; 7. Spacing b; 8. Pouring trough; 9. Pit body edge; 10. Pouring layer; 11. Pit cover plate; 12. Civil engineering formwork; 13. Pouring cavity. Detailed Implementation

[0021] The following drawings will disclose several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details are not intended to limit the invention. That is, in some embodiments of the invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0022] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this invention.

[0023] Example 1: Please see Figures 3-6 The pit edge mounting base of the present invention includes: Embedded plate 1 is installed at the bottom of the inner wall of the casting groove 8 opened at the edge 9 of the pit body; Support 2 is fixedly installed on the embedded plate 1, and a protective angle steel 3 is installed on the top. The top of the protective angle steel 3 is flush with the top of the pouring groove 8. Angle steel bracket 4 is fixedly connected to the side of the edge guard angle steel 3 near the pit, and a drop 5 is formed between the upper surface of the angle steel bracket 4 and the upper surface of the edge guard angle steel 3. The drop 5 is used to install the pit cover plate 11.

[0024] The casting trough 8 is a ring groove formed by the outward offset of the edge 9 of the pit body.

[0025] The inner wall of the pouring trough 8 and the inner wall of the edge angle steel 3 form a pouring cavity 13. The pouring cavity 13 is provided with a pouring layer 10, which can be cement or other filling materials.

[0026] The inner side of the edge guard steel 3 coincides with the edge 9 of the pit body.

[0027] Construction method: S1. During the construction of the foundation pit, the embedded plate 1 is first placed in the corresponding position, and then the foundation pit and the pouring groove 8 for installing the edge protection angle steel 3 are formed on the foundation through the civil engineering formwork 12. S2. After the concrete has solidified, remove the civil engineering formwork 12 and weld the edge protection angle steel 3 onto the embedded plate 1 through the support 2. S3. Then, the civil engineering formwork 12 is used to form a pouring cavity 13, and cement is poured into the pouring cavity 13 to form a pouring layer 10, thereby ensuring that the structure is flush with the ground. S4. Then, weld the angle steel lug 4 on the side of the edge angle steel 3 near the pit. When welding, pay attention to the drop 5 between the angle steel lug 4 and the top of the pouring trough 8 and the thickness of the pit cover 11 to avoid the pit cover 11 protruding from the pouring trough 8. In S1, the embedded plate 1 is installed according to the civil construction. If the installation location of the embedded plate 1 itself has civil reinforcement, the civil reinforcement is directly adjusted and welded. If there is a certain distance between the civil reinforcement and the embedded plate, the embedded plate 1 can be processed into a structure with reinforcement at the bottom. The embedded plate 1 is connected to the civil reinforcement through the reinforcement at the bottom to strengthen the load. Of course, if the actual working conditions do not require the embedded plate 1 to be connected to the civil reinforcement, the embedded plate 1 can also be placed in the corresponding position directly through the civil formwork 12.

[0028] In this technical solution, the edge-protecting angle steel 3 can also be laid around the pit. When the edge-protecting angle steel 3 is laid as a continuous ring, there is no need to lay the civil engineering formwork 12 during the above-mentioned S3 process. Thus, the casting cavity can be formed directly between the inner wall of the ring-shaped edge-protecting angle steel 3 and the casting trough 8.

[0029] Working principle: In this embodiment, since the structure connected to the pit foundation is set with a pre-embedded plate 1, and the top of the pre-embedded plate 1 will be set with a civil engineering formwork 12 during the civil engineering process, the pre-embedded plate 1 can be effectively leveled by the civil engineering formwork 12. Furthermore, since the embedded plate 1 is set in a plane, it will not form a protrusion after the foundation is poured. Compared with using inclined steel bars as embedded parts, it eliminates the safety hazard of tripping the installation personnel. Meanwhile, compared with existing technical solutions, when there are civil engineering errors in the size of the pit, there is no adjustment margin for installing the pit cover 11, or the pit cover 11 needs to be cut, or the gap between the pit cover 11 and the protective angle steel 3 is large, the present invention can adjust the specific position of the protective angle steel 3 and the support 2 welded on the embedded plate 1 according to the civil engineering errors, so that the pit cover 11 will not be cut or the gap is large.

[0030] Example 2: Please see Figures 7-8As a variation of Embodiment 1, unlike Embodiment 1, the casting groove 8 is a rectangular groove independently opened on the edge 9 of the pit body, and the top of the rectangular groove and the side near the edge 9 of the pit body are open. The width of the rectangular groove is equal to the width of the embedded plate 1.

[0031] In this embodiment: By changing the shape of the civil engineering template 12 in the civil engineering process, the pouring trough 8 in Embodiment 1 can be set into a rectangle, thereby forming a rectangular trough, which effectively reduces the area of ​​the pouring trough 8. Compared with the ring trough 8, it reduces the probability of workers stepping into the pouring trough 8, effectively eliminates the probability of workers coming into contact with the side of the edge angle steel 3, thereby avoiding tripping workers and effectively reducing the safety hazards caused by the structure.

[0032] Example 3: Please see Figure 5 and Figure 8 As a further improvement to Embodiments 1 and 2, the height of the edge guard angle steel 3 is equal to the distance a6 between the embedded plate 1 and the top of the casting groove 8. Furthermore, the edge guard angle steel 3 is fixedly connected to the edge of the embedded plate 1. Preferably, the bottom of the edge guard angle steel 3 is welded to the embedded plate 1; and the length of the edge guard angle steel 3 is equal to the width of the embedded plate 1. Compared to Embodiment 1, which uses a continuous annular angle steel arrangement for the edge guard angle steel 3, this effectively saves installation materials.

[0033] Because the bottom of the edge guard angle steel 3 is connected to the embedded plate 1, the support for the edge guard angle steel 3 is effectively strengthened; Please see Figure 4 In Embodiment 1, the civil engineering formwork 12 before the second pouring layer 10 is poured can be attached to the side of the edge angle steel 3 near the pit to form a pouring cavity 13 that is compatible with the annular groove. This prevents the pouring material from flowing from the bottom or sides of the edge angle steel 3 to the side of the edge angle steel 3 near the pit, thereby preventing the pouring material from sticking to the installation surface of the edge angle steel and affecting the subsequent installation of the angle steel lug 4. Please see Figure 7 In Embodiment 2, since the length of the edge guard angle steel 3 is equal to the width of the embedded plate 1 and the rectangular groove, the pouring of the pouring cavity 13 in Embodiment 2 does not require the setting of the civil engineering formwork 12, which effectively saves construction time and improves construction efficiency; at the same time, it also prevents the pouring material from adhering to the side of the edge guard angle steel 3 near the pit and prevents the pouring material from affecting the subsequent installation of the angle steel support ear 4.

[0034] Example 4: Please see Figure 5 and Figure 8As a variation of Embodiments 1 to 3, the inner side of the protective angle steel 3 is provided with a distance b7 between it and the edge 9 of the pit body. The width of the distance b7 is greater than or equal to the width of the upper surface of the angle steel support lug 4.

[0035] In this embodiment, by setting the spacing b7, the angle steel lug 4 is effectively prevented from protruding from the edge 9 of the pit body, thus preventing installers or maintenance personnel from being scraped by the angle steel lug 4 when entering the pit, thereby further reducing safety hazards.

[0036] Please see Figure 6 and Figure 7 In embodiments one to four, the support member 2 is a connecting angle steel, and the top and bottom of the connecting angle steel are welded to the top of the inner wall of the edge guard angle steel 3 and the embedded plate 1, respectively; and both sides of the connecting angle steel are fixedly connected to the inner side of the edge guard angle steel 3 to form a triangular support structure.

[0037] With the above configuration, compared with the existing technology that supports the edge angle steel 3 with diagonal steel bars, it can bear a larger effective load. Moreover, the support member 2 adopts connecting angle steel, which has a simple structure. After being welded together with the edge angle steel 3, it can be assembled as a part in the subsequent installation process with the embedded plate 1, reducing the construction time in the factory and effectively improving construction efficiency.

[0038] When the supporting component 2 uses 50x50x5 angle steel blocks, approximately 50-70mm long, its safe load-bearing capacity is about 10 tons. The conventional pit edge is reinforced with φ8mm steel bars, each with a safe load-bearing capacity of about 1.8 tons, far less than the load-bearing capacity of the 50x50x5 angle steel block. The load-bearing capacity of one 50x50x5 angle steel block is roughly equivalent to that of five steel bars. This makes the installation of the pit cover 11 easier to weld and simplifies construction.

[0039] The above are merely embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A pit edge mounting base, characterized in that, include: An embedded plate (1) is installed at the bottom of the inner wall of the casting groove (8) opened at the edge (9) of the pit body; Support member (2), the support member (2) is fixedly installed on the embedded plate (1), and the top is equipped with a protective angle steel (3), the top of the protective angle steel (3) is flush with the top of the casting groove (8); Angle steel bracket (4) is fixedly connected to the side of the edge angle steel (3) near the pit, and a drop (5) is formed between the upper surface of the angle steel bracket (4) and the upper surface of the edge angle steel (3), the drop (5) is used to install the pit cover plate (11).

2. The pit edge mounting base according to claim 1, characterized in that: The height of the edge guard angle steel (3) is equal to the distance a (6) between the embedded plate (1) and the top of the casting trough (8).

3. The pit edge mounting base according to claim 1, characterized in that: The casting groove (8) is a ring groove formed by the outward offset of the edge (9) of the pit body.

4. The pit edge mounting base according to claim 1, characterized in that: The casting groove (8) is a rectangular groove independently opened on the edge (9) of the pit body, and the top of the rectangular groove and the side near the edge (9) of the pit body are open. The width of the rectangular groove is equal to the width of the embedded plate (1).

5. A pit edge mounting base according to claim 3 or 4, characterized in that: The edge of the protective angle steel (3) is fixedly connected to the edge of the embedded plate (1); and the length of the protective angle steel (3) is equal to the width of the embedded plate (1).

6. A pit edge mounting base according to claim 5, characterized in that: The inner side of the edge guard (3) coincides with the edge (9) of the pit body.

7. A pit edge mounting base according to claim 5, characterized in that: The inner side of the protective angle steel (3) and the edge (9) of the pit body are provided with a distance b (7), the width of the distance b (7) is greater than or equal to the width of the upper surface of the angle steel support (4).

8. A pit edge mounting base according to claim 5, characterized in that: The inner wall of the casting trough (8) and the inner wall of the edge angle steel (3) form a casting cavity (13), and a casting layer (10) is provided in the casting cavity (13).

9. A pit edge mounting base according to claim 1, characterized in that: The support member (2) is a connecting angle steel, and the top and bottom of the connecting angle steel are welded to the top of the inner wall of the edge guard angle steel (3) and the embedded plate (1) respectively; and both sides of the connecting angle steel are fixedly connected to the inner side of the edge guard angle steel (3) to form a triangular support structure.

10. A construction method for installing a base at the edge of a pit, characterized in that, The construction steps for the pit edge mounting base, including any one of claims 1-9, are as follows: S1. During the construction of the foundation pit, the embedded plate (1) is placed in the corresponding position, and then the foundation pit and the pouring groove (8) for installing the edge guard angle steel (3) are formed on the foundation through the civil engineering formwork (12). S2. After the concrete has solidified, remove the civil engineering formwork (12) and weld the edge guard steel (3) onto the embedded plate (1) through the support (2); S3. Then, the civil engineering formwork (12) is used to form a pouring cavity (13), and cement is poured into the pouring cavity (13) to form a pouring layer (10), thereby ensuring that the structure is flush with the ground. S4. Then weld the angle steel lug (4) on the side of the edge steel (3) close to the pit. When welding, pay attention to the drop (5) between the angle steel lug (4) and the top of the pouring trough (8) and the thickness of the pit cover plate (11) to avoid the pit cover plate (11) protruding into the pouring trough (8).

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