Fabricated wet joint foundation pit supporting structure

Abstract

The invention relates to the technical field of foundation pit supporting, in particular to an assembly type wet joint foundation pit supporting structure. According to the technical scheme, the metal pipe comprises a main metal pipe and further comprises first metal pipes movably arranged at the two ends of the main metal pipe in a sleeving mode, and the ends, away from the main metal pipe, of the first metal pipes are movably sleeved with second metal pipes; and the driving mechanism is arranged in the main metal pipe, so that the first metal pipes at the two ends of the main metal pipe synchronously move to be separated from the main metal pipe in the direction away from the main metal pipe. Through structural design of the main metal pipe, the first metal pipe, the second metal pipe, the driving mechanism, the clamping mechanism and the like, movement of the metal pipe, the first metal pipe and the second metal pipe can be accurately controlled, the metal pipe, the first metal pipe and the second metal pipe can adapt to the actual shape and size of a foundation pit, and therefore the foundation pit wall can be effectively supported. Meanwhile, compared with a traditional multi-section installation and connection supporting method, the foundation pit supporting structure can be installed and adjusted more quickly, and the project progress is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit support, and in particular to an assembled wet-joint foundation pit support structure. Background Art

[0002] The foundation pit support structure refers to an engineering structure used to prevent the collapse of the soil around the foundation and to protect the safety of the construction site and surrounding buildings during the construction process. The assembled wet joint is a technology and structure used for foundation pit support, which is particularly suitable for engineering projects that need to quickly complete the excavation and support of the foundation pit. Common foundation pit support structures include steel support structures. The steel support structure is a support system made of steel. It is a temporary support system formed by components such as steel beam support, steel plate support and steel pipe support to support the soil around the foundation pit and prevent it from collapsing. With respect to the above-mentioned related technologies, the inventor believes that some foundation pits are equipped with multiple metal steel pipes horizontally above the inner wall of the foundation pit for support, and these metal steel pipes are usually installed and connected in sections, which requires more connectors and labor costs, thereby increasing the complexity and construction period of the construction, which is easy to affect the overall construction progress and efficiency. Summary of the Invention

[0003] The purpose of this application is to provide an assembled wet-joint foundation pit support structure, in which multiple metal steel pipes are horizontally arranged above some foundation pits to support the inner wall of the foundation pit, and these metal steel pipes are usually installed and connected in sections, which requires more connectors and labor costs, thereby increasing the complexity and construction period of the construction, in order to improve the problems affecting the overall construction progress and efficiency.

[0004] The present application provides an assembled wet joint foundation pit support structure to solve the above problems, using the following technical solutions:

[0005] A prefabricated wet-joint foundation pit support structure comprises a main metal pipe, a first metal pipe movably sleeved on both ends of the main metal pipe, and a second metal pipe movably sleeved on each end of the first metal pipe away from the main metal pipe; a driving mechanism arranged in the main metal pipe so that the first metal pipes at both ends of the main metal pipe are synchronously moved and disengaged in a direction away from the main metal pipe; and a clamping mechanism installed in the first metal pipe and linked to the switch of the driving mechanism.

[0006] By adopting the above technical solution, the complexity and duration of construction can be reduced, thereby preventing the overall construction progress and efficiency from being easily affected.

[0007] Optionally, the driving mechanism includes a motor cover fixedly connected to the middle of the main metal tube, the interior of the motor cover is fixedly connected to the motor, the output shaft of the motor is movably passed through the main metal tube and is fixedly connected to the main bevel gear, the end of the main bevel gear away from the motor output shaft is fixedly connected to a supporting rotary rod, the end of the supporting rotary rod away from the main bevel gear is rotatably connected to the inner wall of the main metal tube, a pair of support plates are fixedly connected to the interior of the main metal tube, each of the support plates is rotatably connected to a first spiral rod spirally connected to the first metal tube, and the end of the first spiral rod close to the main bevel gear is fixedly connected to a secondary bevel gear meshing with the main bevel gear.

[0008] By adopting the above technical solution, the first metal tube and the second metal tube at both ends of the device can be easily extended and retracted.

[0009] Optionally, the clamping mechanism includes a clamping sleeve rotatably connected to the first metal tube, a pair of clamping grooves are opened on the clamping sleeve, and the end of the first spiral rod away from the secondary bevel gear is fixedly connected to a clamping block, and the outer wall of the clamping block is fixedly connected to a pair of wing blocks that are clamped into the clamping grooves.

[0010] By adopting the above technical solution, it is convenient to drive the second metal tube to move in sequence after the first metal tube moves to the limit.

[0011] Optionally, the clamping mechanism further comprises a rotating frame fixedly connected to the outer wall of the ferrule, an end of the rotating frame away from the ferrule is fixedly connected to a second spiral rod, and the second spiral rod is spirally connected to the second metal tube.

[0012] By adopting the above technical solution, the first metal tube and the second metal tube can be opened in a linked manner.

[0013] Optionally, a rotating seat is fixedly connected to the interior of the first metal tube, and a rotating groove for the rotating seat to rotate is formed at one end of the ferrule close to the inner wall of the first metal tube.

[0014] By adopting the above technical solution, the ferrule is prevented from being separated from the first metal tube after operation.

[0015] Optionally, the inner walls of the main metal tube and the first metal tube are provided with limiting grooves, the second metal tube is provided with a limiting slide that is inserted into the limiting groove in the first metal tube, and the second metal tube is provided with a limiting slide that is inserted into the limiting groove in the main metal tube.

[0016] By adopting the above technical solution, the first metal tube and the second metal tube can slide in the horizontal direction, thereby preventing rotation from causing a failure in normal linkage switching.

[0017] Optionally, one end of the second spiral rod away from the clamping block is fixedly connected to a circular block.

[0018] By adopting the above technical solution, it is convenient to limit the moving distance of the second metal pipe within the first metal pipe.

[0019] Optionally, the first metal pipe and the second metal pipe are symmetrically arranged on both sides of the motor cover in the middle of the main metal pipe.

[0020] By adopting the above technical solution, it can ensure that the first metal pipe and the second metal pipe move the same distance at both ends of the main metal pipe.

[0021] Optionally, connection clamping members are fixedly connected to both ends of the second metal pipe away from the first metal pipe.

[0022] By adopting the above technical solution, it is convenient to fixedly connect the second metal pipe to the foundation pit.

[0023] Optionally, fixed supports that are clamped with the connection clamping members are fixedly connected to the inner walls of the foundation pit.

[0024] By adopting the above technical solution, it is convenient to fixedly connect the inner wall of the foundation pit to the support mechanism.

[0025] In summary, the present application includes at least one of the following beneficial technical effects of the assembled wet joint foundation pit support structure:

[0026] 1. Through the design of structures such as the main metal pipe, the first metal pipe, the second metal pipe, the driving mechanism, and the clamping mechanism, the present invention can not only precisely control the movement of the metal pipe, the first metal pipe, and the second metal pipe, enabling them to adapt to the actual shape and size of the foundation pit, thereby effectively supporting the foundation pit wall. At the same time, compared with the traditional multi-section installation and connection support method, this design can install and adjust the foundation pit support structure more quickly, improving the project progress;

[0027] 2. By the cooperation of structures such as the driving mechanism and the clamping mechanism, the present invention enables the driving mechanism and the clamping mechanism to be linked and opened, thereby ensuring that the first metal pipe and the second metal pipe at both ends of the metal pipe are started simultaneously in sequence, guaranteeing the coordination and consistency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of an assembled wet joint foundation pit support structure of the present invention.

[0029] Figure 2 is Figure 1 the sectional structural diagram of

[0030] Figure 3 is Figure 2 the enlarged schematic diagram at A in

[0031] Figure 4 is Figure 2 the enlarged schematic diagram at B in

[0032] Figure 5 is Figure 4 Schematic cross-sectional structure diagram of the connection between the middle ferrule and the rotating seat.

[0033] Figure 6 is Figure 1 Left view of the main metal pipe, the first metal pipe and the second metal pipe in the middle.

[0034] In the figure, 1 is the main metal pipe; 11 is the support plate; 12 is the first screw rod; 13 is the secondary bevel gear; 14 is the clamping block; 15 is the wing block; 2 is the first metal pipe; 21 is the ferrule; 22 is the card slot; 23 is the rotating frame; 24 is the second screw rod; 25 is the circular block; 26 is the rotating groove; 27 is the rotating seat; 3 is the second metal pipe; 1231 is the limit sliding groove; 1232 is the limit sliding strip; 4 is the motor cover; 41 is the motor; 42 is the main bevel gear; 43 is the support rotating rod; 5 is the connecting fastener; 6 is the fixed support. Specific implementation manner

[0035] The following will Figure 1 - be Figure 6 further described in detail with reference to the attached

[0036] An assembled wet joint foundation pit support structure, referring to Figure 1 , includes the main metal pipe 1: the first metal pipes 2 movably sleeved at both ends of the main metal pipe 1, a rotating seat 27 is fixedly connected inside the first metal pipes 2, a rotating groove 26 for the rotation of the rotating seat 27 is opened at one end of the ferrule 21 close to the inner wall of the first metal pipe 2, the second metal pipes 3 are movably sleeved at the ends of the first metal pipes 2 far from the main metal pipe 1, connecting fasteners 5 are fixedly connected to both ends of the second metal pipes 3 far from the first metal pipes 2, fixed supports 6 are fixedly connected to the inner walls of the foundation pit and are clamped with the connecting fasteners 5, the first metal pipes 2 and the second metal pipes 3 are symmetrically arranged on both sides of the motor cover 4 in the middle of the main metal pipe 1; a driving mechanism is arranged inside the main metal pipe 1 to synchronously move the first metal pipes 2 at both ends of the main metal pipe 1 away from the main metal pipe 1; a clamping mechanism installed inside the first metal pipes 2 and linked with the driving mechanism switch.

[0037] Further, the driving mechanism includes a motor cover 4 fixedly connected to the middle of the main metal pipe 1. The motor 41 is fixedly connected inside the motor cover 4. The output shaft of the motor 41 movably penetrates through the main metal pipe 1 and is fixedly connected with a main bevel gear 42. One end of the main bevel gear 42 away from the output shaft of the motor 41 is fixedly connected with a support rotating rod 43. One end of the support rotating rod 43 away from the main bevel gear 42 is rotatably connected to the inner wall of the main metal pipe 1. A pair of support plates 11 are fixedly connected inside the main metal pipe 1. The function of the support plates 11 is to ensure that the secondary bevel gear 13 is always meshed with the main bevel gear 42. First screw rods 12 that are helically connected to the first metal pipe 2 are rotatably connected to the support plates 11. One end of each first screw rod 12 close to the main bevel gear 42 is fixedly connected with a secondary bevel gear 13 that is meshed with the main bevel gear 42. The main bevel gear 42 and the secondary bevel gear 13 are bevel gears. A bevel gear is a common type of gear. The tooth surface of a bevel gear is conical. The axis of the gear is not parallel to that of a parallel gear, but is arranged in a crossed or angled manner. This design allows the bevel gear to transmit rotational motion and force while changing the angle of the transmission shaft.

[0038] Among them, the clamping mechanism includes a clamping sleeve 21 rotatably connected inside the first metal pipe 2. A pair of clamping grooves 22 are formed on the clamping sleeve 21. The function of the clamping grooves 22 is to clamp the wing blocks 15, and finally the rotating frame 23 can drive the second screw rod 24 to rotate. One end of each first screw rod 12 away from the secondary bevel gear 13 is fixedly connected with a clamping block 14. A pair of wing blocks 15 that are clamped into the clamping grooves 22 are fixedly connected to the outer wall of the clamping block 14.

[0039] Secondly, the clamping mechanism further includes a rotating frame 23 fixedly connected to the outer wall of the clamping sleeve 21. One end of the rotating frame 23 away from the clamping sleeve 21 is fixedly connected with a second screw rod 24. One end of each second screw rod 24 away from the clamping block 14 is fixedly connected with a circular block 25. The function of the circular block 25 is to prevent one end of the second metal pipe 3 from disengaging from the first metal pipe 2. The second screw rod 24 is helically connected to the second metal pipe 3.

[0040] Furthermore, limiting sliding grooves 1231 are formed on the inner walls of the main metal pipe 1 and the first metal pipe 2. Limiting sliding strips 1232 that are clamped into the limiting sliding grooves 1231 inside the first metal pipe 2 and the limiting sliding strips 1232 that are clamped into the limiting sliding grooves 1231 inside the main metal pipe 1 are provided on the second metal pipe 3. The function of the limiting sliding strips 1232 is to keep the first metal pipe 2 and the second metal pipe 3 sliding horizontally without rotating when they move outward.

[0041] The implementation principle of the embodiment of this application is: When an assembled wet joint foundation pit support structure is needed, such as Figure 1As shown in the figure, the main metal pipe 1 is hoisted in the middle of the foundation pit by a lifting device, so that the second metal pipes 3 at both ends of the main metal pipe 1 can extend and abut against the inner wall of the foundation pit for support. Then, the motor 41 in the motor cover 4 can be started, and the output shaft of the motor 41 drives the main bevel gear 42 to rotate. Since the main bevel gear 42 is meshed with a pair of secondary bevel gears 13, the first screw rod 12 drives the pair of secondary bevel gears 13 to rotate, and each secondary bevel gear 13 drives the first screw rod 12 to rotate through the support of the support plate 11. Since the first screw rod 12 is in screw connection with the first metal pipe 2, the first metal pipe 2 slides along the limit chute 1231 in the main metal pipe 1 through the limit slide bar 1232 thereon. Until the slot 22 on the ferrule 21 in the first metal pipe 2 is clamped by the wing block 15 on the clamping block 14, at this time, the clamping block 14 drives the ferrule 21, the rotating frame 23 and the second screw rod 24 to rotate in sequence. Then, since the second screw rod 24 is in screw connection with the second metal pipe 3, the second metal pipe 3 slides along the limit slide bar 1232 in the first metal pipe 2 through the limit chute 1231 thereon until the end of the second metal pipe 3 far away from the first metal pipe 2 abuts against the inner wall of the foundation pit. Finally, the end of the second metal pipe 3 connected to the foundation pit is fixed on the foundation pit, which is fast and efficient.

[0042] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An assembled wet joint foundation pit support structure, including a main metal pipe (1), characterized in that: The first metal pipes (2) are movably sleeved at both ends of the main metal pipe (1), and the second metal pipes (3) are movably sleeved at the ends of the first metal pipes (2) far from the main metal pipe (1); A driving mechanism is arranged in the main metal pipe (1) to synchronously move the first metal pipes (2) at both ends of the main metal pipe (1) outwards in a direction away from the main metal pipe (1); A clamping mechanism installed in the first metal pipe (2) and linked with the driving mechanism switch.

2. The assembled wet joint foundation pit support structure according to claim 1, characterized in that: The driving mechanism includes a motor cover (4) fixedly connected to the middle of the main metal pipe (1). A motor (41) is fixedly connected inside the motor cover (4). The output shaft of the motor (41) movably penetrates through the main metal pipe (1) and is fixedly connected with a main bevel gear (42). One end of the main bevel gear (42) far from the output shaft of the motor (41) is fixedly connected with a support screw rod (43). One end of the support screw rod (43) far from the main bevel gear (42) is rotatably connected to the inner wall of the main metal pipe (1). A pair of support plates (11) are fixedly connected inside the main metal pipe (1). First screw rods (12) helically connected to the first metal pipes (2) are rotatably connected to the support plates (11). One end of each first screw rod (12) close to the main bevel gear (42) is fixedly connected with a secondary bevel gear (13) meshed with the main bevel gear (42).

3. The assembled wet joint foundation pit support structure according to claim 2, characterized in that: The clamping mechanism includes a clamping sleeve (21) rotatably connected inside the first metal pipe (2). A pair of clamping grooves (22) are opened on the clamping sleeve (21). One end of each first screw rod (12) far from the secondary bevel gear (13) is fixedly connected with a clamping block (14). A pair of wing blocks (15) clamped into the clamping grooves (22) are fixedly connected to the outer wall of the clamping block (14).

4. The assembled wet joint foundation pit support structure according to claim 3, characterized in that: The clamping mechanism further includes a rotating frame (23) fixedly connected to the outer wall of the clamping sleeve (21). One end of the rotating frame (23) far from the clamping sleeve (21) is fixedly connected with a second screw rod (24). The second screw rod (24) is helically connected to the second metal pipe (3).

5. The fabricated wet joint foundation pit support structure according to claim 3, characterized in that, A rotating seat (27) is fixedly connected inside the first metal pipe (2). A rotating groove (26) for the rotating seat (27) to rotate is opened at one end of the clamping sleeve (21) close to the inner wall of the first metal pipe (2).

6. The fabricated wet joint foundation pit support structure according to claim 1, characterized in that, Limit sliding grooves (1231) are opened on the inner walls of the main metal pipe (1) and the first metal pipe (2). Limit sliding strips (1232) that are clamped into the limit sliding grooves (1231) inside the first metal pipe (2) and are clamped into the limit sliding grooves (1231) inside the main metal pipe (1) are provided on the second metal pipe (3).

7. The fabricated wet joint foundation pit support structure according to claim 4, characterized in that, Circular blocks (25) are fixedly connected to one end of each second screw rod (24) far from the clamping block (14).

8. The assembled wet joint foundation pit support structure according to claim 1, characterized in that: The first metal pipes (2) and the second metal pipes (3) are symmetrically arranged on both sides of the motor cover (4) in the middle of the main metal pipe (1).

9. The prefabricated wet joint foundation pit support structure according to claim 1, wherein, Connecting clamping parts (5) are fixedly connected to both ends of the second metal pipe (3) far from the first metal pipe (2).

10. A fabricated wet joint foundation pit support structure according to claim 9, characterized in that, The inner walls of the foundation pit are fixedly connected with fixed supports (6) that are clamped with the connecting clamps (5).

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