Foundation pit support structure

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a foundation pit support structure which comprises a protective plate, a plurality of conical blocks are fixedly connected to one side of the outer wall of the protective plate, protective strips are arranged on the adjacent sides of the conical blocks, an open groove is formed in the protective plate, a first rotating shaft is rotatably connected to the interior of the protective plate, and a second rotating shaft is rotatably connected to the outer wall of the protective plate. The two ends of the first rotating shaft are rotationally connected to the upper side of the inner wall of the open groove, a hydraulic rod is fixedly connected to the middle of the outer wall of the first rotating shaft, a fixing rod is fixedly connected to the output end of the hydraulic rod, and a second rotating shaft is fixedly connected to the interior of the protection plate. According to the device, the conical block and the protection strip are attached to the outer wall of the foundation pit to increase friction force, the hydraulic rod is started to enable the fixing rod to be clamped to the inner wall of the limiting groove for clamping, and then the anti-slip strip on the lower surface of the stabilizing plate makes contact with the ground, so that the effects of stabilizing the protection plate and protecting the foundation pit from collapsing are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a foundation pit enclosure structure. Background Art

[0002] A foundation pit is a deep hole or cave excavated in the ground for the construction of underground structures (such as underground parking lots, basements, tunnels, etc.). The foundation pit is usually surrounded or supported by a wall or retaining structure made of concrete, steel or other materials. The main purpose of these retaining structures is to ensure the stability of the ground around the foundation pit and prevent soil collapse, groundwater infiltration, and damage to nearby buildings. In some areas, the soil may be very loose or prone to collapse, and the use of retaining structures can prevent soil collapse and ensure the safety of the excavation process.

[0003] After searching, a foundation pit retaining structure is disclosed in the announcement number: CN219343229U, which relates to the field of construction engineering, including a number of support plates connected together, one side wall of the support plate is provided with a connecting groove, and the other side wall of the support plate is fixed with a rotating shaft that is rotatably connected to the connecting groove of the adjacent support plate, and the support plate is provided with an abutment mechanism for fixing the rotating shaft and preventing the rotation of the two adjacent support plates. This application has the effect of facilitating the adjustment of the angle between the two adjacent support plates. Although the application achieves the effect of facilitating the adjustment of the angle between the two adjacent support plates through the cooperation between the support plate, the connecting groove, the rotating shaft and the abutment mechanism, this application cannot ensure sufficient stability and protection of the foundation pit in the case of loose soil by simply relying on the installation rod inserted into the soil. This method is not only complicated in actual operation, but may also fail to provide sufficient support, reducing the actual effectiveness of the retaining structure. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a foundation pit retaining structure, which is an improvement over the prior art. Simply relying on installing rods inserted into the soil cannot fully stabilize the foundation pit, reducing the practicability of the retaining structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit retaining structure, comprising a guard plate, a plurality of conical blocks are fixedly connected to one side of the outer wall of the guard plate, a protective strip is arranged on an adjacent side of the plurality of conical blocks, a slot is opened inside the guard plate, a rotating shaft 1 is rotatably connected inside the guard plate, both ends of the rotating shaft 1 are rotatably connected to the upper side of the inner wall of the slot, a hydraulic rod is fixedly connected to the middle part of the outer wall of the rotating shaft 1, a fixed rod is fixedly connected to the output end of the hydraulic rod, a rotating shaft 2 is fixedly connected inside the guard plate, both ends of the rotating shaft 2 are fixedly connected to the lower side of the inner wall of the slot, a rotating plate is rotatably connected to the middle part of the outer wall of the rotating shaft 2, a limiting block is fixedly connected to the upper surface of the rotating plate, limiting grooves equidistantly distributed are opened inside the limiting block, the inner wall of the limiting groove is fitted to the outer wall of the fixing rod, a rotating shaft 3 is fixedly connected inside the rotating plate, and a stabilizing component is arranged on the outer wall of the rotating shaft 3.

[0006] Through the above technical solution, the friction between the guard plate and the pit wall is increased through the cooperation between the conical block and the protective strip, and the fixed rod is pushed by the hydraulic rod to engage the limiting groove, thereby achieving the effect of stabilizing the guard plate to protect the foundation pit.

[0007] Furthermore, the stabilizing component includes an articulated block, the inner wall of the articulated block is rotatably connected to the outer wall of the rotating shaft three, the outer wall of the articulated block is fixedly connected to a stabilizing plate, and one side of the outer wall of the stabilizing plate is fixedly connected to equidistantly distributed anti-slip strips.

[0008] Through the above technical solution, the anti-slip strip contacts the ground, thereby increasing the friction between the stabilizing plate and the ground.

[0009] Furthermore, a spring is fixedly connected to the interior of the guard plate, and a sliding sheet is fixedly connected to the lower surface of the spring.

[0010] Through the above technical solution, the sliding sheet is reset by the spring.

[0011] Furthermore, a paddle is fixedly connected to the outer wall of the sliding sheet, and the outer wall of the paddle is slidably connected to the inside of the guard plate.

[0012] Through the above technical solution, the sliding piece is fixed by the paddle, thereby achieving the effect of facilitating the sliding piece to be moved.

[0013] Furthermore, a clamping block is fixedly connected to the lower surface of the sliding sheet, and an outer wall of the clamping block is arranged to penetrate the interior of the guard plate.

[0014] Through the above technical solution, the movement of the sliding sheet can achieve the effect of driving the card block to move.

[0015] Furthermore, a connecting strip is attached to the inner wall of the guard plate, and a symmetrical slot is formed inside the connecting strip.

[0016] Through the above technical solution, the effect of facilitating positioning is achieved.

[0017] Furthermore, the outer wall of the card block is slidably connected to the inside of the connecting strip, and the outer wall of the card block is fitted to the inner wall of the card slot.

[0018] Through the above technical solution, the effect of fixing the connecting strip is eliminated.

[0019] Furthermore, a symmetrical fixing block is fixedly connected to the upper surface of the guard plate.

[0020] Through the above technical solution, the effect of facilitating the connection of multiple guard plates is achieved.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the friction force is increased by fitting the conical block and the protective strip to the outer wall of the foundation pit, and then the rotating plate is placed flush with the ground, and the fixed rod is engaged with the inner wall of the limit groove by starting the hydraulic rod, and then the anti-slip strip on the lower surface of the stabilizing plate contacts the ground, thereby achieving the effect of stabilizing the protective plate and protecting the foundation pit from collapse.

[0023] 2. In the utility model, the spring is contracted by toggling the paddle to drive the card block to retract, and the connecting strip is placed between them and the paddle is released to reset the card block to engage with the connecting strip, thereby achieving the effect of horizontally connecting multiple guard plates to protect the foundation pit, and the guard plates are inserted into the outer wall of the fixed block to achieve the effect of longitudinally connecting multiple guard plates to protect the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional structural diagram of a foundation pit retaining structure proposed by the utility model;

[0025] Figure 2 This is a partial structural breakdown diagram of a foundation pit retaining structure proposed by the utility model;

[0026] Figure 3 This is a disassembled diagram of a rotating plate of a foundation pit retaining structure proposed by the utility model;

[0027] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Guard plate; 2. Conical block; 3. Protective strip; 4. Axis 1; 5. Hydraulic rod; 6. Fixed rod; 7. Axis 2; 8. Rotating plate; 9. Limit block; 10. Limit groove; 11. Axis 3; 12. Articulated block; 13. Stabilizing plate; 14. Anti-slip strip; 15. Spring; 16. Sliding piece; 17. Paddle; 18. Block; 19. Connecting strip; 20. Slot; 21. Fixed block; 22. Slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-3 The utility model provides an embodiment: a foundation pit retaining structure, including a guard plate 1, a plurality of conical blocks 2 are fixedly connected to one side of the outer wall of the guard plate 1, a protective strip 3 is fixedly connected to the adjacent side of the guard plate 1 located at the plurality of conical blocks 2, a slot 22 is opened inside the guard plate 1, a rotating shaft 1 4 is rotatably connected to the inside of the guard plate 1, both ends of the rotating shaft 1 4 are rotatably connected to the upper side of the inner wall of the slot 22, a hydraulic rod 5 is fixedly connected to the middle of the outer wall of the rotating shaft 1 4, and a fixed rod 6 is fixedly connected to the output end of the hydraulic rod 5, a rotating shaft 2 7 is fixedly connected to the inside of the guard plate 1, and both ends of the rotating shaft 2 7 are fixedly connected to the slot 22 On the lower side of the inner wall, a rotating plate 8 is rotatably connected to the middle of the outer wall of the rotating shaft 2 7, and a limiting block 9 is fixedly connected to the upper surface of the rotating plate 8. The limiting block 9 is provided with limiting grooves 10 that are equidistantly distributed inside. The inner wall of the limiting groove 10 fits the outer wall of the fixed rod 6. The rotating plate 8 is fixedly connected to the rotating shaft 3 11 inside, and a stabilizing component is arranged on the outer wall of the rotating shaft 3 11; the stabilizing component includes an articulated block 12, the inner wall of the articulated block 12 is rotatably connected to the outer wall of the rotating shaft 3 11, the outer wall of the articulated block 12 is fixedly connected to a stabilizing plate 13, and one side of the outer wall of the stabilizing plate 13 is fixedly connected to anti-slip strips 14 that are equidistantly distributed;

[0032] Specifically, the outer wall of the entire guard plate 1 is evenly distributed by equidistantly distributing a plurality of conical blocks 2 and a plurality of protection strips 3, thereby achieving the effect of increasing the friction between the guard plate 1 and the pit wall, and then by opening a groove 22 inside the guard plate 1, it is convenient to accommodate the hydraulic rod 5 and the rotating plate 8, and by rotating the rotating plate 8 parallel to the ground and contacting the ground through the anti-slip strip 14, the friction is further increased, and then by starting the hydraulic rod 5, the fixed rod 6 is engaged with the inner wall of different limit grooves 10 according to the angle, thereby achieving the effect of stabilizing and protecting the foundation pit.

[0033] Reference Figure 2 , 4 A spring 15 is fixedly connected to the inside of the guard plate 1, and a sliding piece 16 is fixedly connected to the lower surface of the spring 15; a paddle 17 is fixedly connected to the outer wall of the sliding piece 16, and the outer wall of the paddle 17 is slidably connected to the inside of the guard plate 1; a clamping block 18 is fixedly connected to the lower surface of the sliding piece 16, and the outer wall of the clamping block 18 is arranged through the inside of the guard plate 1; a connecting strip 19 is fitted to the inner wall of the guard plate 1, and a symmetrical clamping groove 20 is opened inside the connecting strip 19; the outer wall of the clamping block 18 is slidably connected to the inside of the connecting strip 19, and the outer wall of the clamping block 18 is fitted to the inner wall of the clamping groove 20; a symmetrical fixed block 21 is fixedly connected to the upper surface of the guard plate 1;

[0034] Specifically, by moving the paddle 17, the sliding piece 16 is driven to slide inside the guard plate 1, so that the spring 15 contracts. By placing the connecting strip 19 directly below the block 18 and then releasing the paddle 17, the reaction force of the spring 15 pushes the block 18 to engage with the inner wall of the slot 20, thereby achieving the effect of fixing the connecting strip 19. By placing another guard plate 1 on the outer wall of the connecting strip 19 and repeating the above actions, the effect of horizontally connecting multiple guard plates 1 is achieved. Then, by inserting the guard plate 1 into the outer wall of the fixing block 21, a socket that meets the size of the fixing block 21 is opened inside the guard plate 1, thereby achieving the effect of facilitating the longitudinal connection of multiple guard plates 1.

[0035] Working principle: First, when the foundation pit needs to be enclosed, the guard plate 1 is attached to the outer wall of the foundation pit so that the conical block 2 and the protection strip 3 are close to the pit wall, thereby achieving the effect of increasing the friction force, and then the rotating plate 8 is pulled to make the rotating plate 8 parallel to the ground, and at the same time, the hinge block 12 is rotated to keep it parallel to the ground, and then the anti-skid strip 14 on the lower surface of the stabilizing plate 13 is driven by the hinge block 12 to contact the ground, thereby achieving the effect of further increasing the friction force, at this time, the hydraulic rod 5 is pulled to make the hydraulic rod 5 adjust according to the angle of the foundation pit, and then the hydraulic rod 5 is started to push the fixed rod 6 to contact the limit groove 10, thereby achieving the effect of stabilizing the guard plate 1;

[0036] Secondly, when multiple guard plates 1 are needed to protect the foundation pit, the sliding plate 16 is driven to move by toggling the paddle 17, so that the spring 15 contracts, thereby achieving the effect of driving the block 18 on the lower surface of the sliding plate 16 to contract. At this time, the connecting strip 19 is placed directly below the block 18. At this time, the paddle 17 is released so that the reaction force of the spring 15 pushes the block 18 to engage with the inner wall of the slot 20, thereby facilitating the installation of the connecting strip 19, thereby achieving the effect of horizontally connecting multiple guard plates 1, and then the guard plates 1 are inserted into the outer wall of the fixed block 21, so as to achieve the effect of longitudinally connecting multiple guard plates 1.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foundation pit retaining structure, comprising a guard plate (1), characterized in that: A plurality of conical blocks (2) are fixedly connected to one side of the outer wall of the guard plate (1), and a protective strip (3) is provided on an adjacent side of the plurality of conical blocks (2). A slot (22) is provided inside the guard plate (1), and a rotating shaft (4) is rotatably connected to the inside of the guard plate (1), and both ends of the rotating shaft (4) are rotatably connected to the upper side of the inner wall of the slot (22). A hydraulic rod (5) is fixedly connected to the middle of the outer wall of the rotating shaft (4), and a fixed rod (6) is fixedly connected to the output end of the hydraulic rod (5). The guard plate (1) is fixedly connected to the inside of the guard plate (1). A second rotating shaft (7) is provided, both ends of the second rotating shaft (7) are fixedly connected to the lower side of the inner wall of the slot (22), a rotating plate (8) is rotatably connected to the middle of the outer wall of the second rotating shaft (7), a limiting block (9) is fixedly connected to the upper surface of the rotating plate (8), the limiting block (9) is provided with limiting grooves (10) distributed at equal intervals inside, the inner wall of the limiting groove (10) is in contact with the outer wall of the fixing rod (6), a third rotating shaft (11) is fixedly connected to the inside of the rotating plate (8), and a stabilizing component is provided on the outer wall of the third rotating shaft (11).

2. A foundation pit retaining structure according to claim 1, characterized in that: The stabilizing component comprises an articulated block (12), the inner wall of the articulated block (12) being rotatably connected to the outer wall of the rotating shaft three (11), the outer wall of the articulated block (12) being fixedly connected to a stabilizing plate (13), and one side of the outer wall of the stabilizing plate (13) being fixedly connected to anti-slip strips (14) distributed at equal distances.

3. A foundation pit retaining structure according to claim 1, characterized in that: A spring (15) is fixedly connected to the interior of the guard plate (1), and a sliding sheet (16) is fixedly connected to the lower surface of the spring (15).

4. A foundation pit retaining structure according to claim 3, characterized in that: The outer wall of the sliding sheet (16) is fixedly connected to a paddle (17), and the outer wall of the paddle (17) is slidably connected to the interior of the guard plate (1).

5. A foundation pit retaining structure according to claim 3, characterized in that: A clamping block (18) is fixedly connected to the lower surface of the sliding sheet (16), and an outer wall of the clamping block (18) is arranged to penetrate the interior of the guard plate (1).

6. A foundation pit retaining structure according to claim 1, characterized in that: A connecting strip (19) is attached to the inner wall of the guard plate (1), and a symmetrical slot (20) is provided inside the connecting strip (19).

7. A foundation pit retaining structure according to claim 5, characterized in that: The outer wall of the clamping block (18) is slidably connected to the inside of the connecting strip (19), and the outer wall of the clamping block (18) fits closely to the inner wall of the clamping groove (20).

8. The foundation pit retaining structure according to claim 1, characterized in that: A symmetrical fixing block (21) is fixedly connected to the upper surface of the guard plate (1).

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