Foundation pit supporting steel formwork for constructional engineering

Abstract

The utility model relates to the field of foundation pit supporting, and discloses a constructional engineering foundation pit supporting steel formwork which comprises a plate body and two fixing frames, a plurality of connecting holes are formed in the two sides of the plate body, the connecting holes are divided into two sets, the two sets of connecting holes are symmetrically distributed with the plate body as the axis, two supporting frames are connected to one ends of the fixing frames in a clamped mode, and the other ends of the fixing frames are connected with the supporting frames in a clamped mode. Fixing plates are rotationally installed at the ends, away from the fixing frame, of the two supporting frames, two connecting rings are fixedly connected to the inner walls of the fixing plates, inserting rods are connected to the inner walls of the connecting rings in a clamped mode, and one end of the fixing frame and one end of the plate body are fixedly installed. The two fixing frames are installed at one end of the plate body, the supporting frames are clamped to one ends of the fixing frames, the fixing plates are rotationally connected to one ends of the supporting frames, the connecting rings are fixedly connected to the inner walls of the fixing plates, and the inserting rods are clamped to the inner walls of the connecting rings, so that the inserting rods are conveniently inserted into a foundation pit, and one end of the plate body is connected with the inner wall of the foundation pit.

Description

Technical Field

[0001] The present application relates to the field of foundation pit support, and in particular to a steel formwork for foundation pit support of a construction project. Background Art

[0002] Foundation pit support is a support, reinforcement and protection measure for the side walls and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. During the foundation pit excavation process, due to the stress release of the soil and the seepage of water, it may cause safety problems such as instability and collapse of the foundation pit slope, and it will also have adverse effects on surrounding buildings, roads, underground pipelines, etc. Therefore, foundation pit support projects are needed to ensure construction safety and the safety of the surrounding environment. The structural forms of foundation pit support are various. Foundation pit support is an indispensable part of underground engineering construction. Its safety and reliability are crucial to ensuring the safety and quality of the entire project. Foundation pit support is often supported by steel formwork. When using conventional steel formwork, several steel formworks are installed with the help of bolts and enclosed into the required shape to ensure the shielding effect.

[0003] With respect to the above-mentioned related technologies, the inventors believe that, during installation, conventional steel formworks are often kept at a certain distance from the inner wall of the foundation pit to facilitate operation by workers, which results in the situation that after installation, the periphery of the steel formwork is difficult to fix to the inner wall of the foundation pit, thereby affecting the fixing effect of the steel formwork.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that conventional steel formwork is difficult to fix to the inner wall of a foundation pit, the present application provides a steel formwork for supporting a foundation pit of a construction project.

[0006] The present application provides a construction engineering foundation pit support steel formwork adopting the following technical solution:

[0007] A steel formwork for supporting a foundation pit of a construction project comprises a plate body and two fixing frames, a plurality of connection holes are provided on both sides of the plate body, the plurality of connection holes are divided into two groups, the two groups of connection holes are symmetrically distributed with the plate body as the axis, two support frames are clamped at one end of the fixing frame, a fixing plate is rotatably installed at the ends of the two support frames away from the fixing frame, two connecting rings are fixedly connected to the inner wall of the fixing plate, a plug rod is clamped at the inner wall of the connecting ring, one end of the fixing frame is fixedly installed with one end of the plate body, the two fixing frames are symmetrically distributed with the plate body as the axis, and the size specification of the plug rod surface is compatible with the size specification of the inner wall of the connecting ring.

[0008] Preferably, a plurality of injection holes are opened on the surface of the insertion rod, and the plurality of injection holes are evenly distributed on the surface of the insertion rod, and a fixing bolt is threadedly installed on the inner wall of the insertion rod.

[0009] Preferably, a plurality of limiting bolts are threadedly connected between the two fixing plates, the plurality of limiting bolts form a group of two, and the two groups of limiting bolts are symmetrically distributed with the fixing plate as the axis.

[0010] Preferably, two mounting grooves are provided at one end of the two fixing frames close to each other, a sliding frame is slidably installed on the inner wall of the mounting groove, one end of the sliding frame is rotatably connected to one end of the supporting frame, and the sliding frame and the supporting frame are arranged perpendicular to each other.

[0011] Preferably, a plurality of slots are provided on the surface of the fixing frame, the inner walls of the slots are engaged with a limiting frame, and one end of the limiting frame is rotatably mounted on the surface of the supporting frame.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. By installing two fixing frames at one end of the plate body, one end of the fixing frame is clamped with a supporting frame, one end of the supporting frame is rotatably connected to a fixing plate, the inner wall of the fixing plate is fixedly connected with a connecting ring, and the inner wall of the connecting ring is clamped with a plug rod, so that the plug rod is inserted into the foundation pit, thereby connecting one end of the plate body with the inner wall of the foundation pit, a plurality of injection holes are opened on the surface of the plug rod, and a fixing bolt is threadedly connected at one end of the plug rod, so that after the plug rod is inserted into the foundation pit, concrete material is added to the inner wall of the plug rod, the concrete material enters the foundation pit from the injection hole, and the fixing bolt is used to seal one end of the plug rod, so that the plug rod is kept connected to the inner wall of the foundation pit with the help of the solidified concrete material, effectively improving the stability of the plug rod, and installing a plurality of limit bolts on the inner walls of the two fixing plates, so that the installed supporting frame and the fixing frame form a triangle, effectively improving the stability of the device; compared with the prior art, it effectively improves the supporting effect of the steel formwork;

[0014] 2. An installation groove can also be opened on the surface of the fixed frame, and the inner wall of the installation groove is slidably connected with a sliding frame. The surface of the sliding frame is rotatably connected to the surface of the support frame, so that the sliding frame at one end of the support frame can be installed and disassembled with the help of the installation groove, so that it is convenient to disassemble the device and carry it in batches, effectively reducing the space occupied by the device during transportation and stacking. The surface of the support frame is rotatably connected to the limiting frame, and one end of the limiting frame is clamped with the groove on the surface of the fixed frame, so that the sliding frame can slide on the inner wall of the installation groove, thereby adjusting the distance between the insertion rod and the plate body, which is convenient for installation in foundation pits of different sizes, and the supporting frame can be fixed at different angles with the help of the limiting frame; the scope of application of the device is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a steel formwork for supporting a foundation pit of a construction project according to an embodiment of the application;

[0016] Figure 2 is a schematic diagram of the fixing frame structure of an embodiment of the application;

[0017] Figure 3 is a side view schematic diagram of the structure of an embodiment of the application;

[0018] Figure 4 It is a schematic diagram of the structure at location A of the application embodiment.

[0019] Explanation of the accompanying drawings: 1. Plate body; 2. Connecting hole; 3. Fixing frame; 4. Support frame; 5. Fixing plate; 6. Limiting bolt; 7. Connecting ring; 8. Insert rod; 9. Injection hole; 10. Fixing bolt; 11. Mounting groove; 12. Sliding frame; 13. Limiting frame; 14. Card slot. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 —4 Provide further details of this application.

[0021] The present application embodiment discloses a steel formwork for supporting a foundation pit in a construction project, referring to Figure 1 - Figure 2 , including a plate body 1. When in use, the bolts are passed through the connecting holes 2 on one side of the steel formwork, so that several steel formwork plate bodies 1 are installed with the help of the bolts, and are enclosed into a desired shape to ensure the shielding effect. Two fixing frames 3 are installed at one end of the plate body 1, and one end of the fixing frame 3 is clamped with a supporting frame 4. With the help of the fixing frame 3, the supporting frame 4 is installed at one end of the plate body 1. One end of the supporting frame 4 is rotatably connected with a fixing plate 5. The inner wall of the fixing plate 5 is fixedly connected with a connecting ring 7. The inner wall of the connecting ring 7 is clamped with a plug rod 8. With the help of the connecting ring 7, the plug rod 8 is conveniently installed. The plug rod 8 is inserted into the foundation pit, so that one end of the plate body 1 is connected to the inner wall of the foundation pit, which effectively improves the support effect of the steel formwork.

[0022] Reference Figure 2 A plurality of injection holes 9 are provided on the surface of the insertion rod 8. After the insertion rod 8 is inserted into the foundation pit, concrete is added to the inner wall of the insertion rod 8. The concrete enters the foundation pit from the injection holes 9, so that the insertion rod 8 is kept connected to the inner wall of the foundation pit with the help of the solidified concrete, which effectively improves the stability of the insertion rod 8. A fixing bolt 10 is threadedly connected to one end of the insertion rod 8, and the fixing bolt 10 is used to seal one end of the insertion rod 8 to prevent the added concrete from leaking out of one end of the insertion rod 8. A plurality of limit bolts 6 are installed on the inner walls of the two fixing plates 5, and the two fixing plates 5 are fixed with the help of the limit bolts 6. The installed support frame 4 and the fixing frame 3 form a triangle, which effectively improves the stability of the device.

[0023] Reference Figure 3 - Figure 4 The mounting groove 11 is provided on the surface of the fixing frame 3, and the inner wall of the mounting groove 11 is slidably connected with a sliding frame 12. The surface of the sliding frame 12 is rotatably connected to the surface of the supporting frame 4, and the mounting groove 11 is used to facilitate the installation and disassembly of the sliding frame 12 at one end of the supporting frame 4. When the device is transported, the limiting bolt 6 is removed from the fixing plate 5, and the sliding frame 12 is separated from the mounting groove 11, which is convenient for batch transportation after the device is disassembled, and effectively reduces the space occupied by the device during transportation and stacking. The surface of the supporting frame 4 is rotatably connected to the limiting frame 13, and one end of the limiting frame 13 is engaged with the card groove 14 on the surface of the fixing frame 3, so that the sliding frame 12 slides on the inner wall of the mounting groove 11, thereby adjusting the distance between the insertion rod 8 and the plate body 1, which is convenient for installation in foundation pits of different sizes, and with the help of the limiting frame 13, the supporting frame 4 is conveniently fixed at different angles, so as to avoid the situation where the sliding frame 12 deviates and causes the insertion rod 8 to move.

[0024] The implementation principle of a steel formwork for supporting a foundation pit of a construction project in an embodiment of the present application is as follows: by installing two fixing frames 3 at one end of a plate body 1, one end of the fixing frame 3 is clamped with a supporting frame 4, one end of the supporting frame 4 is rotatably connected with a fixing plate 5, the inner wall of the fixing plate 5 is fixedly connected with a connecting ring 7, and the inner wall of the connecting ring 7 is clamped with a plug rod 8, so that the plug rod 8 can be inserted into the foundation pit, thereby connecting one end of the plate body 1 to the inner wall of the foundation pit, a plurality of injection holes 9 are opened on the surface of the plug rod 8, and a fixing bolt 10 is threadedly connected at one end of the plug rod 8, so that after the plug rod 8 is inserted into the foundation pit, concrete material is added to the inner wall of the plug rod 8, the concrete material enters the foundation pit from the injection hole 9, and the fixing bolt 10 is used to seal one end of the plug rod 8, so that the plug rod 8 is kept connected to the inner wall of the foundation pit with the help of the solidified concrete material, effectively improving the stability of the plug rod 8, and a plurality of limit bolts 6 are installed on the inner walls of the two fixing plates 5, so that the installed supporting frame 4 and the fixing frame 3 form a triangle, effectively improving the stability of the device.

[0025] A mounting groove 11 can also be opened on the surface of the fixed frame 3, and the inner wall of the mounting groove 11 is slidably connected with a sliding frame 12, and the surface of the sliding frame 12 is rotatably connected to the surface of the support frame 4, so that the sliding frame 12 at one end of the support frame 4 can be installed and disassembled with the help of the mounting groove 11, so as to facilitate batch transportation during installation, and effectively reduce the space occupied by the device during transportation and stacking. The surface of the support frame 4 is rotatably connected to the limiting frame 13, and one end of the limiting frame 13 is clamped with the slot 14 on the surface of the fixed frame 3, so that the sliding frame 12 can be slid on the inner wall of the mounting groove 11, thereby adjusting the distance between the insertion rod 8 and the plate body 1, which is convenient for installation in foundation pits of different sizes, and with the help of the limiting frame 13, the support frame 4 can be conveniently fixed at different angles.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel formwork for supporting a foundation pit in a construction project, comprising a plate body (1) and two fixing frames (3), characterized in that: A plurality of connection holes (2) are provided on both sides of the plate body (1), and the plurality of connection holes (2) are divided into two groups. The two groups of connection holes (2) are symmetrically distributed with the plate body (1) as the axis. Two support frames (4) are clamped on one end of the fixing frame (3), and a fixing plate (5) is rotatably mounted on one end of the two support frames (4) away from the fixing frame (3). Two connection rings (7) are fixedly connected to the inner wall of the fixing plate (5), and an insertion rod (8) is clamped on the inner wall of the connection ring (7).

2. A construction engineering foundation pit support steel formwork according to claim 1, characterized in that: One end of the fixing frame (3) is fixedly mounted to one end of the plate body (1), and the two fixing frames (3) are symmetrically distributed with the plate body (1) as an axis. The size specifications of the surface of the insertion rod (8) are compatible with the size specifications of the inner wall of the connecting ring (7).

3. A construction engineering foundation pit support steel formwork according to claim 1, characterized in that: The surface of the insertion rod (8) is provided with a plurality of injection holes (9), the plurality of injection holes (9) are evenly distributed on the surface of the insertion rod (8), and a fixing bolt (10) is threadedly installed on the inner wall of the insertion rod (8).

4. A construction engineering foundation pit support steel formwork according to claim 1, characterized in that: A plurality of limiting bolts (6) are threadedly connected between the two fixing plates (5), and the plurality of limiting bolts (6) are grouped in pairs, and the two groups of limiting bolts (6) are symmetrically distributed with the fixing plate (5) as the axis.

5. The steel formwork for supporting a foundation pit of a construction project according to claim 1, characterized in that: Two mounting grooves (11) are provided at the ends of the two fixing frames (3) close to each other, and a sliding frame (12) is slidably mounted on the inner wall of the mounting groove (11), one end of the sliding frame (12) is rotatably connected to one end of the supporting frame (4), and the sliding frame (12) and the supporting frame (4) are arranged perpendicular to each other.

6. A construction engineering foundation pit support steel formwork according to claim 1, characterized in that: A plurality of slots (14) are provided on the surface of the fixing frame (3); the inner walls of the slots (14) are engaged with the limiting frame (13); and one end of the limiting frame (13) is rotatably mounted on the surface of the supporting frame (4).

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