Foundation pit slope protection device

Abstract

The utility model discloses a foundation pit slope protection device in the field of foundation pit support, which comprises a side wall protection plate mounted on the side wall of a foundation pit and a ground protection plate mounted on the ground, the ground protection plate is rotatably connected with the side wall protection plate through a rotating mechanism, the rotating mechanism is slidably connected in the side wall protection plate and comprises a moving block and a rotating shaft, and the moving block is movably connected with the rotating shaft. The moving blocks are of a cubic structure and are symmetrically and fixedly installed at the two ends of the rotating shaft, the rotating shaft is rotationally inserted into the ground protection plate, the rotating axis direction of the ground protection plate is parallel to the length direction of the foundation pit, locking mechanisms are arranged on the two sides of the two moving blocks, and the locking mechanisms fix the two moving blocks moving in place; when the included angle between the ground and the side wall of the foundation pit is changed, the purpose of slope protection can be achieved by rotating the ground protection plate; when the length of the side wall of the foundation pit changes, the two moving blocks slide along the two moving cavities at the same time, and flexible switching of the relative positions of the side wall protection plate and the ground protection plate is achieved.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit support, in particular to a foundation pit slope protection device. Background Art

[0002] A foundation pit is an earth pit excavated at the designed position of the foundation according to the base elevation and the foundation plane size. During the construction of foundation pit excavation, it is necessary to prevent the collapse of the outer soil layer and the danger of the foundation pit collapsing caused by precipitation and groundwater. Therefore, certain support measures need to be taken.

[0003] The patent document with the application number 202121800145.1 discloses a foundation pit slope protection device, which includes a plurality of first anchor rods, a plurality of guard plates, a plurality of first reinforcement plates and a plurality of first fixing parts; it also includes a plurality of second anchor rods and a plurality of folding plates; the folding plate includes a ground section and a foundation pit section, the ground section is used to abut against the ground where the foundation pit is dug, the foundation pit section is used to abut against the side wall of the foundation pit, and the ground section is fixedly connected to the foundation pit section.

[0004] Regarding the above related technology, the inventor believes that for the designed foundation pit slope protection device, when the included angle between the ground and the side wall of the foundation pit changes, since the included angle between the ground section and the foundation pit section of the folding plate is fixed, the foundation pit slope protection device is no longer applicable. Even if the angle can be changed, when the length of the side wall of the foundation pit changes, it is very difficult to change the relative position between the ground section and the foundation pit section. Content of the Utility Model

[0005] The purpose of the utility model is to provide a foundation pit slope protection device to solve the above-mentioned technical problem that when the included angle between the ground and the side wall of the foundation pit changes, since the included angle between the ground section and the foundation pit section of the folding plate is fixed, the foundation pit slope protection device is no longer applicable. Even if the angle can be changed, when the length of the side wall of the foundation pit changes, it is very difficult to change the relative position between the ground section and the foundation pit section.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A foundation pit slope protection device includes a side wall guard plate installed on the side wall of the foundation pit and a ground guard plate installed on the ground. The ground guard plate is rotationally connected to the side wall guard plate through a rotating mechanism. The rotating mechanism is slidably connected inside the side wall guard plate and includes a moving block and a rotating shaft. The moving block has a cubic structure and is symmetrically and fixedly installed at both ends of the rotating shaft. The rotating shaft is rotatably inserted into the ground guard plate. The rotation axis direction of the ground guard plate is parallel to the length direction of the foundation pit. Locking mechanisms are provided on both sides of the two moving blocks, and the locking mechanisms fix the two moving blocks in place.

[0008] As a further solution of the utility model: Two parallel moving cavities are opened in the side wall guard plate, and the two moving blocks slide along the two moving cavities respectively. Locking cavities are opened on both sides of the two moving cavities, and the two locking cavities are parallel to and communicate with the moving cavities.

[0009] As a further solution of the utility model: The locking mechanism includes two locking blocks slidably connected in the locking cavities. Locking teeth are provided on the sides of the two locking blocks close to the moving blocks. Locking grooves are opened on the sides of the two moving blocks close to the locking blocks, and the locking teeth are engaged with the locking grooves.

[0010] As a further solution of the utility model: The width of the locking cavity is smaller than that of the moving cavity, the thickness of the locking block is smaller than that of the moving block, and the sliding directions of the two locking blocks are perpendicular to the sliding directions of the two moving blocks.

[0011] As a further solution of the utility model: A rotating groove is opened between the two moving cavities, and the rotating groove penetrates through the side surface of the side wall guard plate. The ground guard plate is rotatably connected in the rotating groove.

[0012] As a further solution of the utility model: Two moving grooves are opened between the two moving cavities and the rotating groove. The thickness of the moving groove is smaller than that of the moving cavity and the rotating groove. The diameter of the rotating shaft is smaller than the thickness of the moving groove, and the rotating shaft moves along the moving groove.

[0013] As a further solution of the utility model: Two driving grooves communicating with the locking cavities are opened on the surface of the side wall guard plate. Starting blocks are provided on the sides of the two locking blocks, and the starting blocks move along the driving grooves.

[0014] As a further solution of the utility model: The side wall guard plate is fixedly installed on the side wall of the foundation pit through anchor bolts, and a plurality of fixing cones are provided at the bottom of the side wall guard plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, the ground guard plate is rotatably connected with the rotating shaft, and the rotating shaft is installed on the side wall guard plate through two moving blocks, realizing the rotating connection between the ground guard plate and the side wall guard plate. When the included angle between the ground and the side wall of the foundation pit changes, the purpose of slope protection can be achieved by rotating the ground guard plate.

[0017] In the utility model, when the length of the side wall of the foundation pit changes, it is necessary to change the relative positions of the side wall guard plate and the ground guard plate. By sliding the two moving blocks along the two moving cavities simultaneously, the positions of the rotating shaft and the ground guard plate can be flexibly changed, realizing the flexible switching of the relative positions of the side wall guard plate and the ground guard plate.

[0018] In the present utility model, after the two moving blocks move into place, the driving locking block is driven to move towards the moving blocks. After the locking teeth are engaged with the locking grooves, the locking block fixes the moving blocks, so that the ground guard plate is stably installed on the side wall guard plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a three-dimensional structural schematic diagram of the side wall guard plate in the present utility model;

[0021] Figure 3 is an internal structural schematic diagram of the side wall guard plate in the present utility model;

[0022] Figure 4 is Figure 3 an enlarged view of part A in

[0023] Figure 5 is a three-dimensional structural schematic diagram of the ground guard plate and the rotating mechanism in the present utility model;

[0024] Figure 6 is a three-dimensional structural schematic diagram of the locking mechanism in the present utility model.

[0025] In the figure: 1, foundation pit side wall; 2, ground; 3, side wall guard plate; 31, rotating groove; 32, moving groove; 33, moving cavity; 34, locking cavity; 35, driving groove; 4, ground guard plate; 5, rotating mechanism; 51, moving block; 52, locking groove; 53, rotating shaft; 6, locking mechanism; 61, locking block; 62, locking teeth; 63, starting block; 7, fixing cone; 8, anchor rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment

[0028] A foundation pit slope protection device, refer to Figures 1-6, including a sidewall guard plate 3 installed on the sidewall 1 of the foundation pit and a ground guard plate 4 installed on the ground 2. The sidewall guard plate 3 is fixedly installed on the sidewall 1 of the foundation pit through anchor bolts 8, and a number of fixing cones 7 are provided at the bottom of the sidewall guard plate 3. The effects achieved by the above components are as follows: The anchor bolts 8 pass through the sidewall guard plate 3 and are inserted into the sidewall 1 of the foundation pit, and the sidewall guard plate 3 can be fixed to the sidewall 1 of the foundation pit; the fixing cones 7 are inserted into the foundation pit, and the sidewall guard plate 3 can be fixed to the sidewall 1 of the foundation pit.

[0029] As Figures 1-6 shown, in this implementation: The ground guard plate 4 is rotatably connected to the sidewall guard plate 3 through a rotating mechanism 5. The rotating mechanism 5 is slidably connected inside the sidewall guard plate 3 and includes a moving block 51 and a rotating shaft 53. The moving block 51 has a cubic structure and is symmetrically and fixedly installed at both ends of the rotating shaft 53. The rotating shaft 53 is rotatably inserted into the ground guard plate 4, and the rotation axis direction of the ground guard plate 4 is parallel to the length direction of the foundation pit. The effects achieved by the above components are as follows: The ground guard plate 4 is rotatably connected to the rotating shaft 53, and the rotating shaft 53 is installed on the sidewall guard plate 3 through two moving blocks 51, realizing the rotational connection between the ground guard plate 4 and the sidewall guard plate 3. When the included angle between the ground 2 and the sidewall 1 of the foundation pit changes, the purpose of slope protection can be achieved by rotating the ground guard plate 4.

[0030] As Figures 1-6 shown, in this implementation: Two parallel moving cavities 33 are opened inside the sidewall guard plate 3, and the two moving blocks 51 slide along the two moving cavities 33 respectively. The effects achieved by the above components are as follows: When the length of the sidewall 1 of the foundation pit changes, it is necessary to change the relative positions of the sidewall guard plate 3 and the ground guard plate 4. By sliding the two moving blocks 51 along the two moving cavities 33 at the same time, the positions of the rotating shaft 53 and the ground guard plate 4 can be flexibly changed, realizing the flexible switching of the relative positions of the sidewall guard plate 3 and the ground guard plate 4.

[0031] As Figures 1-6 shown, in this implementation: A rotating groove 31 is opened between the two moving cavities 33. The rotating groove 31 penetrates the side surface of the sidewall guard plate 3, and the ground guard plate 4 is rotatably connected inside the rotating groove 31. The effects achieved by the above components are as follows: The rotating groove 31 penetrates the side surface of the sidewall guard plate 3. The ground guard plate 4 is rotatably connected to the rotating shaft 53 and rotates inside the rotating groove 31.

[0032] As Figures 1-6As shown in the figure, in this embodiment: two moving grooves 32 are provided between the two moving chambers 33 and the rotating groove 31. The thickness of the moving groove 32 is smaller than that of the moving chamber 33 and the rotating groove 31. The diameter of the rotating shaft 53 is smaller than the thickness of the moving groove 32, and the rotating shaft 53 moves along the moving groove 32. The effects achieved by the above components are as follows: the two moving grooves 32 facilitate the rotating shaft 53 to pass through the moving chamber 33, and the rotating shaft 53 can move along the moving groove 32 driven by the two moving blocks 51. The thickness of the moving groove 32 is smaller than that of the moving chamber 33 and the rotating groove 31, so the moving block 51 will not slide out of the moving chamber 33 through the moving groove 32, ensuring the stability of the moving block 51.

[0033] As Figures 1-6 shown in the figure, in this embodiment: locking chambers 34 are provided on both sides of the two moving chambers 33. The two locking chambers 34 are parallel to and communicate with the moving chambers 33. Locking mechanisms 6 are provided on both sides of the two moving blocks 51, and the locking mechanisms 6 fix the two moving blocks 51 in place.

[0034] As Figures 1-6 shown in the figure, in this embodiment: the locking mechanism 6 includes two locking blocks 61 slidably connected in the locking chamber 34. The width of the locking chamber 34 is smaller than that of the moving chamber 33, and the thickness of the locking block 61 is smaller than that of the moving block 51. The effects achieved by the above components are as follows: the width of the locking chamber 34 is smaller than that of the moving chamber 33, and the thickness of the locking block 61 is smaller than that of the moving block 51, so the moving block 51 will not slide out of the moving chamber 33 through the locking chamber 34, and the locking block 61 can enter the moving chamber 33.

[0035] As Figures 1-6 shown in the figure, in this embodiment: locking teeth 62 are provided on the sides of the two locking blocks 61 close to the moving blocks 51. Locking grooves 52 are provided on the sides of the two moving blocks 51 close to the locking blocks 61. The locking teeth 62 are engaged with the locking grooves 52. The sliding directions of the two locking blocks 61 are perpendicular to the sliding directions of the two moving blocks 51. The effects achieved by the above components are as follows: when the two moving blocks 51 move into place, the locking blocks 61 are driven to move towards the moving blocks 51. After the locking teeth 62 are engaged with the locking grooves 52, the locking blocks 61 fix the moving blocks 51, so that the ground guard plate 4 is stably installed on the side wall guard plate 3. The sliding directions of the two locking blocks 61 are perpendicular to the sliding directions of the two moving blocks 51, which facilitates the locking blocks 61 to fix the moving blocks 51.

[0036] It should be noted that the connection between the two locking blocks 61 and the locking chamber 34 is very tight and it is difficult to move. Springs can also be provided between the opposite sides of the two locking blocks 61 and the inner wall of the locking chamber 34, so that the two locking blocks 61 will not automatically slide along the locking chamber 34, ensuring that the locking mechanism 6 can stably fix the moving blocks 51.

[0037] As Figures 1-6As shown in the figure, in this embodiment: two driving grooves 35 communicating with the locking cavity 34 are formed on the surface of the side wall guard plate 3, and starting blocks 63 are arranged on the sides of the two locking blocks 61, and the starting blocks 63 move along the driving grooves 35; the effects achieved by the above components are: the arrangement of the driving grooves 35 facilitates the movement of the starting blocks 63; the starting blocks 63 can drive the two locking blocks 61 to move.

[0038] The working principle of the present utility model is as follows: when the included angle between the ground 2 and the side wall of the foundation pit 1 changes, the ground guard plate 4 can be driven to rotate along the rotating shaft 53 to change the angle between the ground guard plate 4 and the side wall guard plate 3, so as to achieve the purpose of slope protection;

[0039] When the length of the side wall of the foundation pit 1 changes, first, the two starting blocks 63 drive the two locking blocks 61 to move away from each other along the locking cavity 34, and the two locking blocks 61 drive the locking teeth 62 to separate from the locking grooves 52. When the locking teeth 62 are completely separated from the locking grooves 52, the ground guard plate 4 drives the rotating shaft 53 and the moving block 51 to move along the moving groove 32 and the moving cavity 33 respectively. When the ground guard plate 4 moves to an appropriate position to protect the ground 2, the moving block 51 also moves to an appropriate position. At this time, the two starting blocks 63 drive the two locking blocks 61 to move closer to each other along the locking cavity 34, and the two locking blocks 61 drive the locking teeth 62 to engage with the locking grooves 52 to fix the rotating mechanism 5 and ensure the stability of the ground guard plate 4.

[0040] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A foundation pit slope protection device, comprising a side wall protection plate (3) installed on a foundation pit side wall (1), and a ground protection plate (4) installed on the ground (2), characterized in that: The ground guard plate (4) is rotatably connected to the side wall guard plate (3) via a rotating mechanism (5); the rotating mechanism (5) is slidably connected inside the side wall guard plate (3) and comprises a moving block (51) and a rotating shaft (53); the moving block (51) is in a cubic structure and is symmetrically fixedly mounted at both ends of the rotating shaft (53); the rotating shaft (53) is rotatably inserted into the ground guard plate (4); the direction of the rotating axis of the ground guard plate (4) is parallel to the length direction of the foundation pit; locking mechanisms (6) are provided on both sides of the two moving blocks (51); the locking mechanisms (6) fix the two moving blocks (51) that have been moved into position.

2. A foundation pit slope protection device according to claim 1, characterized in that: Two parallel moving cavities (33) are provided in the side wall guard plate (3), the two moving blocks (51) slide along the two moving cavities (33) respectively, locking cavities (34) are provided on both sides of the two moving cavities (33), and the two locking cavities (34) are parallel to and connected with the moving cavities (33).

3. A foundation pit slope protection device according to claim 2, characterized in that: The locking mechanism (6) comprises two locking blocks (61) slidably connected in the locking cavity (34); the sides of the two locking blocks (61) close to the moving block (51) are provided with locking teeth (62); the sides of the two moving blocks (51) close to the locking blocks (61) are provided with locking grooves (52); the locking teeth (62) are meshed with the locking grooves (52).

4. A foundation pit slope protection device according to claim 3, characterized in that: The locking cavity (34) is smaller in width than the moving cavity (33), the locking block (61) is smaller in thickness than the moving block (51), and the sliding directions of the two locking blocks (61) are perpendicular to the sliding directions of the two moving blocks (51).

5. A foundation pit slope protection device according to claim 4, characterized in that: A rotation groove (31) is provided between the two movable chambers (33), the rotation groove (31) penetrates the side surface of the side wall guard plate (3), and the ground guard plate (4) is rotationally connected in the rotation groove (31).

6. A foundation pit slope protection device according to claim 5, characterized in that: Two movable grooves (32) are provided between the two movable cavities (33) and the rotating groove (31); the thickness of the movable groove (32) is smaller than that of the movable cavity (33) and the rotating groove (31); the diameter of the rotating shaft (53) is smaller than the thickness of the movable groove (32); and the rotating shaft (53) moves along the movable groove (32).

7. A foundation pit slope protection device according to claim 6, characterized in that: The surface of the side wall guard plate (3) is provided with two driving grooves (35) which are in communication with the locking cavity (34); the sides of the two locking blocks (61) are provided with starting blocks (63), and the starting blocks (63) move along the driving grooves (35).

8. A foundation pit slope protection device according to claim 7, characterized in that: The side wall guard plate (3) is fixedly mounted on the foundation pit side wall (1) via anchor rods (8), and a plurality of fixing cones (7) are provided at the bottom of the side wall guard plate (3).

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