Integrated temporary support and permanent formwork for building foundation pit side formwork

Abstract

This utility model discloses an integrated temporary support and permanent formwork for a foundation pit edge formwork, comprising multiple foundation pit steel protective plates installed at the edge of the foundation pit. A horizontal steel beam is laid on one side of each steel protective plate, and a supporting steel beam is rotatably connected to the rear side of the inner cavity of the horizontal steel beam. The foundation pit steel protective plate and the supporting steel beam are fixedly connected by expansion bolts. A support pipe is installed between the horizontal steel beam and the supporting steel beam, and a support rod is slidably connected to the inner cavity of the support pipe. A propulsion assembly is installed at the top of the support pipe, and the propulsion assembly includes a connecting sleeve welded to the top of the support pipe. This utility model, through the combined use of the foundation pit steel protective plates, horizontal steel beams, and supporting steel beams, supports and fixes the foundation pit slope. Simultaneously, with the combined use of the support pipe, support rod, and propulsion assembly, the horizontal steel beam and supporting steel beam are diagonally braced and fixed, thus achieving strong support and easy adjustment of the support angle.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit support technology, and in particular relates to the integrated temporary support and permanent formwork of building foundation pit side formwork. Background Technology

[0002] In the field of construction engineering, foundation pit support refers to the measures taken to support, reinforce, and protect the sidewalls and surrounding environment of the foundation pit to ensure the safety of underground structure construction and the surrounding environment. Temporary support structures and permanent formwork are often set up separately, resulting in poor overall integrity and easy dispersion of support force. Moreover, the connection between the two during construction is relatively complex, and the adjustment of their support angle is also difficult, making it impossible to flexibly adapt to different foundation pit shapes and construction requirements. Therefore, it is necessary to provide an integrated foundation pit side formwork that combines temporary support and permanent formwork, using a rotating integrated support structure. This can concentrate the lateral and diagonal support forces, improve support strength, and at the same time, the support angle is easy to adjust, making it highly adaptable. Utility Model Content

[0003] The purpose of this utility model is to provide an integrated temporary support and permanent formwork for the side form of a building foundation pit. It adopts a rotating integrated support structure, which can concentrate the lateral support force and the diagonal support force to improve the support strength. At the same time, the support angle is easy to adjust and the adaptability is flexible, so as to solve the above-mentioned technical problems.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A temporary support and permanent formwork integrated foundation pit side formwork, including multiple foundation pit steel protective plates installed at the edge of the foundation pit: a horizontal steel beam is laid on one side of the foundation pit steel protective plate, a supporting steel beam is rotatably connected to the rear side of the inner cavity of the horizontal steel beam, the foundation pit steel protective plate and the supporting steel beam are fixedly connected by expansion bolts, a support pipe is provided between the horizontal steel beam and the supporting steel beam, a support rod is slidably connected to the inner cavity of the support pipe, a propulsion assembly is provided at the top of the support pipe, the propulsion assembly includes a connecting sleeve welded to the top of the support pipe, a transmission shaft is rotatably connected to the inner cavity of the connecting sleeve, a gear is fixedly connected to the surface of the transmission shaft, a rack is welded to the bottom of the support rod, the gear and rack mesh, and a backstop assembly is provided on the surface of the connecting sleeve.

[0005] Preferably, the anti-reverse assembly includes ratchet wheels fixedly connected to both sides of the drive shaft surface, and slidable anti-reverse locking elements are provided on both sides of the connecting sleeve, wherein the anti-reverse locking elements mesh with the ratchet wheels.

[0006] Preferably, support members are welded to the bottom of both sides of the connecting sleeve, and springs are welded to the top of the support members. The top of the springs is welded to the anti-reverse clamp.

[0007] Preferably, two connecting rods are welded between the two anti-reverse clamps, and rectangular sliding grooves adapted to the connecting rods are provided on both sides of the connecting sleeve.

[0008] Preferably, the bottom end of the support pipe and the top end of the support rod are both welded with connectors, and a threaded pin is provided through the inner cavity of the connector.

[0009] Preferably, the connector is fixedly connected to the horizontal steel beam and the supporting steel beam respectively by means of screws, and the surfaces of the horizontal steel beam and the supporting steel beam are provided with multiple through holes that are compatible with the screws.

[0010] The beneficial effects of this utility model are: 1. This utility model uses the combined use of foundation pit steel protective plates, horizontal steel beams and supporting steel beams to support and fix the foundation pit slope. At the same time, with the combined use of support pipes, support rods and propulsion components, the horizontal steel beams and supporting steel beams are diagonally braced and fixed, thus achieving the purpose of strong support and easy adjustment of the support angle. 2. This utility model, through the setting of the anti-reverse component, wherein the cooperation of the support member and the spring provides elastic support for the anti-reverse clamp, so that the anti-reverse clamp can actively engage with the ratchet. At the same time, with the cooperation of the ratchet, the ratchet stops rotating after rotating a certain number of times, thus ensuring the support stability of the support pipe and the support rod. 3. This utility model uses the connecting rod and rectangular sliding groove together to limit and support the anti-reverse clamp, so that the anti-reverse clamp maintains stable vertical sliding, thereby ensuring the meshing stability of the ratchet and the anti-reverse clamp. Attached Figure Description

[0011] in: Figure 1 This is a top view schematic diagram of one embodiment of the present utility model; Figure 2 This is a three-dimensional schematic diagram of a horizontal steel beam, a supporting steel beam, a support pipe, a support rod, and a propulsion assembly according to an embodiment of the present invention. Figure 3 This is a three-dimensional exploded view of the support pipe, support rod, and propulsion assembly according to one embodiment of the present utility model; Figure 4 This is one embodiment of the present utility model. Figure 3 A magnified view of point A in the middle. Detailed Implementation

[0012] In the following description, embodiments of the integrated temporary support and permanent formwork for the edge formwork of the foundation pit of this utility model will be described with reference to the accompanying drawings.

[0013] Figures 1-4This invention illustrates an embodiment of an integrated temporary support and permanent formwork for a foundation pit edge formwork, comprising multiple foundation pit steel guard plates 1 installed at the edge of the foundation pit. A horizontal steel beam 2 is laid on one side of each steel guard plate 1. A supporting steel beam 3 is rotatably connected to the rear side of the inner cavity of the horizontal steel beam 2. The foundation pit steel guard plate 1 and the supporting steel beam 3 are fixedly connected by expansion bolts. A support pipe 4 is provided between the horizontal steel beam 2 and the supporting steel beam 3. A supporting rod 5 is slidably connected to the inner cavity of the support pipe 4. Connectors 10 are welded to the bottom end of the support pipe 4 and the top end of the supporting rod 5. The inner cavity of the connector 10... A threaded pin 11 is provided, and the connector 10 is fixedly connected to the horizontal steel beam 2 and the supporting steel beam 3 respectively through the threaded pin 11. Multiple through holes adapted to the threaded pin 11 are opened on the surfaces of both the horizontal steel beam 2 and the supporting steel beam 3. A propulsion assembly 6 is provided at the top of the support pipe 4. The propulsion assembly 6 includes a connecting sleeve 61 welded to the top of the support pipe 4. A drive shaft 62 is rotatably connected to the inner cavity of the connecting sleeve 61. A gear 63 is fixedly connected to the surface of the drive shaft 62. A rack 64 is welded to the bottom of the support rod 5. The gear 63 and the rack 64 mesh with each other. The surface of the connecting sleeve 61... A backstop assembly 7 is provided, comprising ratchet 71 fixedly connected to both sides of the surface of the drive shaft 62, and slidable backstop catches 72 on both sides of the connecting sleeve 61, which mesh with the ratchet 71. Support members 73 are welded to the bottom of both sides of the connecting sleeve 61, and springs 74 are welded to the top of the support members 73. The top of the springs 74 is welded to the backstop catches 72. Through the arrangement of the backstop assembly 7, the cooperation of the support members 73 and the springs 74 provides elastic support for the backstop catches 72, allowing the backstop catches 72 to move actively. The ratchet 71 engages with the ratchet 71, and with the cooperation of the ratchet 71, the ratchet 71 stops rotating after a certain number of turns, ensuring the support stability of the support tube 4 and the support rod 5. Two connecting rods 8 are welded between the two anti-reverse locking parts 72. Rectangular sliding grooves 9 that are adapted to the connecting rods 8 are opened on both sides of the connecting sleeve 61. Through the cooperation of the connecting rods 8 and the rectangular sliding grooves 9, the anti-reverse locking parts 72 play a limiting support role, so that the anti-reverse locking parts 72 maintain stable vertical sliding, thereby ensuring the meshing stability of the ratchet 71 and the anti-reverse locking parts 72.

[0014] Working Principle: In use, the user constructs the foundation pit steel lining plate 1 on the foundation pit slope. Then, the horizontal steel beam 2 and the supporting steel beam 3 are rotated relative to each other, and the supporting steel beam 3 is fixed to the surface of the foundation pit steel lining plate 1 using expansion bolts. The support pipe 4 is moved between the horizontal steel beam 2 and the supporting steel beam 3. With the cooperation of the screw pin 11 and the connector 10, the support pipe 4 is rotatably connected to the inner cavity of the horizontal steel beam 2. Then, the user engages the drive sleeve of the electric drill on the right end of the drive shaft 62, causing the drive shaft 62 to rotate within the inner cavity of the connecting sleeve 61. During the rotation of the connecting sleeve 61, the gear 63 rotates, and the gear 63, in turn, drives the meshing gear... When the rack 64 slides, the support rod 5 and the rack 64 rise upwards, and the top of the support pipe 4 engages in the inner cavity of the support steel beam 3. With the cooperation of the connector 10 and the screw pin 11, the top of the support rod 5 is fixedly connected to the support steel beam 3. During the rotation of the gear 63 and the drive shaft 62, the ratchet 71 rotates accordingly and moves the anti-reverse locking piece 72 located at its bottom. At the same time, under the elastic push of the spring 74, the anti-reverse locking piece 72 slides up and down until the ratchet 71 stops rotating. Then, under the elastic force of the spring 74, the anti-reverse locking piece 72 is stably engaged with the ratchet 71, preventing the gear 63 and the drive shaft 62 from rotating back.

[0015] In summary, this integrated temporary support and permanent formwork for the construction pit side formwork, through the combined use of pit steel protective plate 1, horizontal steel beam 2 and supporting steel beam 3, supports and fixes the pit slope. At the same time, with the combined use of support pipe 4, support rod 5 and propulsion component 6, the horizontal steel beam 2 and supporting steel beam 3 are diagonally braced and fixed, thus achieving the purpose of strong support and easy adjustment of the support angle.

Claims

1. An integrated temporary support and permanent formwork for building foundation pit side formwork, characterized in that, The project includes multiple steel lining plates (1) installed at the edge of the pit: a horizontal steel beam (2) is laid on one side of the steel lining plate (1), a supporting steel beam (3) is rotatably connected to the rear side of the inner cavity of the horizontal steel beam (2), the steel lining plate (1) and the supporting steel beam (3) are fixedly connected by expansion bolts, a support pipe (4) is provided between the horizontal steel beam (2) and the supporting steel beam (3), a support rod (5) is slidably connected to the inner cavity of the support pipe (4), a propulsion assembly (6) is provided at the top of the support pipe (4), the propulsion assembly (6) includes a connecting sleeve (61) welded to the top of the support pipe (4), a drive shaft (62) is rotatably connected to the inner cavity of the connecting sleeve (61), a gear (63) is fixedly connected to the surface of the drive shaft (62), a rack (64) is welded to the bottom of the support rod (5), the gear (63) and the rack (64) mesh with each other, and a check assembly (7) is provided on the surface of the connecting sleeve (61).

2. The integrated temporary support and permanent formwork for building foundation pits as described in claim 1, characterized in that, The anti-reverse assembly (7) includes ratchet (71) fixedly connected to both sides of the surface of the transmission shaft (62). Both sides of the connecting sleeve (61) are provided with slidable anti-reverse clips (72), and the anti-reverse clips (72) and ratchet (71) mesh with each other.

3. The integrated temporary support and permanent formwork for the edge formwork of a building foundation pit according to claim 2, characterized in that, Support members (73) are welded to the bottom of both sides of the connecting sleeve (61), and springs (74) are welded to the top of the support members (73). The top of the springs (74) is welded to the anti-reverse clamp (72).

4. The integrated temporary support and permanent formwork for the edge formwork of a building foundation pit according to claim 3, characterized in that, Two connecting rods (8) are welded between the two anti-reverse clamps (72), and rectangular grooves (9) adapted to the connecting rods (8) are provided on both sides of the connecting sleeve (61).

5. The integrated temporary support and permanent formwork for the edge formwork of a building foundation pit according to claim 4, characterized in that, The bottom end of the support pipe (4) and the top end of the support rod (5) are both welded with connectors (10), and a screw (11) is provided through the inner cavity of the connector (10).

6. The integrated temporary support and permanent formwork for the edge formwork of a building foundation pit according to claim 5, characterized in that, The connector (10) is fixedly connected to the horizontal steel beam (2) and the supporting steel beam (3) respectively by the screw (11). The surfaces of the horizontal steel beam (2) and the supporting steel beam (3) are provided with multiple through holes that are compatible with the screw (11).

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