Soil consolidation device for foundation pit construction

Abstract

The invention discloses a soil consolidation device for foundation pit construction, comprising a retaining plate, wherein the top of the retaining plate is provided with a groove, the lower surface of the retaining plate is provided with a screw tube, the interior of the retaining plate is provided with a cavity, the inner bottom wall of the groove is provided with a pipe hole, and a concave block is fixedly installed on the right side of the retaining plate. The bottom of the retaining plate is inserted into the groove of another retaining plate, and then the square tube is rotated according to the terrain of the foundation pit, so that the limit strip on the square tube contacts the inner wall of the foundation pit through the fixing nail, one side of the inclined plate contacts the inner wall of the foundation pit, the square tube squeezes the insertion rod on the limit plate and inserts it into the retaining plate, the fixing plate on the support plate is fixedly connected to the inner bottom wall of the foundation pit, and the fixing plate of the upper retaining plate is fixedly connected to one side of the retaining plate through the fixing nail, so as to achieve the effect of supporting the retaining plate, facilitate the mutual combination and installation of the retaining plates according to the foundation pits of different sizes, so that the retaining plates can protect the soil on the inner wall of the foundation pit, and reduce the construction difficulty of the workers in the foundation pit.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit construction, in particular to a soil consolidation device for foundation pit construction. Background Art

[0002] The retaining structures, groundwater control, environmental protection and other measures required to ensure the safety and stability of the underground space formed by excavating downward from the ground during the construction of underground structures are called foundation pit projects. During the construction of the foundation pit, the soil around the foundation pit will loosen and slide into the interior of the foundation pit, causing the accumulation of soil inside the foundation pit, affecting subsequent construction. Therefore, soil consolidation devices will be used to block and consolidate the soil around the foundation pit.

[0003] However, during the use of soil-fixing devices currently on the market, since most foundation pits are excavated below the ground, groundwater is easily generated on the side walls of the foundation pit, which easily leads to soil loosening. Therefore, it is necessary to set a fixed limit on the soil on the side walls of the foundation pit from the bottom wall of the foundation pit. If a single soil-fixing device is used to block it, the device needs to be set to a large size to meet the height of the foundation pit, which is not convenient for installation and use according to the size of the foundation pit, and it is not convenient to install and limit the device during use, which increases the difficulty of construction for workers in the foundation pit.

[0004] To this end, we propose a soil consolidation device for foundation pit construction that is convenient to assemble and use according to the size of the foundation pit. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a soil consolidation device for foundation pit construction.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A soil consolidation device for foundation pit construction includes a retaining plate, a groove is provided on the top of the retaining plate, a screw tube is provided on the lower surface of the retaining plate, a cavity is provided inside the retaining plate, a pipe hole is provided on the inner bottom wall of the groove, a concave block is fixedly installed on the right side of the retaining plate, a square tube is connected to the inside of the concave block through a rotating shaft, a limit strip is inserted into the bottom of the square tube, and a limit hole is provided on the limit strip.

[0008] A rod is inserted into one side of the concave block, one end of the rod passes through the retaining plate and extends to the inside of the groove, and a limit plate is fixedly installed on one end of the rod located inside the groove. A spring is arranged around the surface of the rod and located between the concave block and the limit plate, one end of the spring is fixedly connected to one side of the limit plate, and the other end of the spring is fixedly connected to one side of the inner wall of the concave block.

[0009] A ramp is fixedly installed on one side of the retaining plate, an upper surface of the ramp is provided with an inclined groove, the inclined groove is connected to the cavity of the retaining plate, the lower surface of the retaining plate is adapted to the groove, and one side of the lower surface of the retaining plate is provided with a slot for connecting with the insertion rod, and the insertion rod is adapted to the slot.

[0010] The inner bottom wall of the retaining plate is inlaid with a spiral ring, which is threadedly connected to the spiral tube. A sealing ring is fixedly installed on the inner bottom wall of the spiral ring. The lower surface of the sealing ring contacts the top of the spiral tube. The bottom of the spiral tube on the previous retaining plate contacts the upper surface of the sealing ring. Both sides of the inner wall of the spiral tube are connected with a one-way valve.

[0011] An arc-shaped mesh plate is provided inside the inclined groove on the inclined plate, and both sides of the arc-shaped mesh plate are in contact with the inner wall of the inclined groove. The inclined groove is connected to the cavity of the retaining plate through an inclined pipe, and the inclination angle of the inclined pipe is 30-40 degrees. The height of the one-way valve feed port is flush with the inner bottom wall of the retaining plate cavity.

[0012] Preferably, a mounting hole is provided on one side of the retaining plate, the inside of the mounting hole is rotatably connected to a support plate via a rotating shaft, the bottom of the support plate is rotatably connected to a fixing plate via a rotating shaft, a fixing hole is provided on the fixing plate, the fixing hole is an inclined hole, and the two fixing holes are arranged at an angle.

[0013] Preferably, a plug plate is fixedly installed on one side of the retaining plate, and a plug plate groove is provided on the other side of the retaining plate. The plug plate is adapted to the plug plate groove, and a bolt is inserted into the back of the square tube. One end of the bolt is located inside the square tube and contacts one side of the limit bar, and a screw hole for threaded connection of the bolt is provided on the surface of the square tube.

[0014] Preferably, the upper surface of the retaining plate is provided with a through hole for the spiral tube to pass through, the surface of the spiral tube is sleeved with a sealing ring, the inner wall of the sealing ring contacts the surface of the spiral tube, and the outer ring of the sealing ring is fixedly connected to the inner wall of the through hole.

[0015] The present invention has the following beneficial effects:

[0016] 1. In the present invention, the bottom of the retaining plate is inserted into the groove of another retaining plate, and then the square tube is rotated according to the terrain of the foundation pit, so that the limit strip on the square tube contacts the inner wall of the foundation pit through the fixing nail, and one side of the inclined plate contacts the inner wall of the foundation pit. The square tube squeezes the inserting rod on the limit plate to connect with the retaining plate, and the fixing plate on the support plate is fixedly connected to the inner bottom wall of the foundation pit. The fixing plate of the upper retaining plate is fixedly connected to one side of the retaining plate through the fixing nail, so as to achieve the effect of supporting the retaining plate, facilitate the mutual combination and installation of the retaining plates according to the foundation pits of different sizes, so that it can protect the soil on the inner wall of the foundation pit, and reduce the construction difficulty of the workers in the foundation pit.

[0017] 2. In the present invention, the inclined plate is fitted with the inner wall of the foundation pit, and then the spiral tube on the upper retaining plate is inserted into the inside of the next retaining plate, so that the bottom of the spiral tube is fitted with the sealing ring inside the next retaining plate, so that the longitudinal retaining plates are connected to each other, and then the two spiral tubes on the bottom retaining plate are connected, and an air pump is used to inflate one of the holes through the pipe hole on the top retaining plate. Under the action of air pressure, the groundwater in the retaining plate flows out from one of the holes, thereby achieving the purpose of waterproofing and drainage in the foundation pit, and achieving the effect of preventing water accumulation in the foundation pit from being difficult to drain. There is no need to carry equipment up and down to perform drainage operations at the bottom of the foundation pit, and the effect of groundwater causing silt and sewage to accumulate on the bottom wall of the foundation pit is also avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from a second viewing angle;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure enlargement at point A;

[0021] Figure 4 Schematic diagram of the side cross-section structure of the retaining plate of the present invention;

[0022] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point B in FIG.

[0023] In the figure: 1 retaining plate, 2 screw pipe, 3 groove, 4 concave block, 5 square tube, 6 limit strip, 7 plug rod, 8 limit plate, 9 spring, 10 support plate, 11 fixed plate, 12 plug plate, 13 bolt, 14 inclined plate, 15 screw ring, 16 sealing ring, 17 one-way valve, 18 sealing ring, 19 curved mesh plate, 20 inclined tube, 21 plug plate groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0026] Example 1

[0027] Reference Figure 1-3 A soil consolidation device for foundation pit construction includes a retaining plate 1. A mounting hole is provided on one side of the retaining plate 1. A support plate 10 is rotatably connected to the inside of the mounting hole through a rotating shaft. A fixing plate 11 is rotatably connected to the bottom of the support plate 10 through a rotating shaft. The rotating support plate 10 and the fixing plate 11 are convenient for subsequent connection between two adjacent retaining plates 1, and are also convenient for fixed connection with the inner bottom wall of the foundation pit. A fixing hole is provided on the fixing plate 11, and the fixing hole is an inclined hole, and the two fixing holes are inclined. The inclined setting of the set fixing holes facilitates subsequent installation operations and facilitates installation and positioning at multiple angles.

[0028] A groove 3 is provided on the top of the retaining plate 1. The setting of the groove 3 makes it convenient to subsequently insert the bottom of the upper retaining plate 1 into the interior of the groove 3 on the bottom retaining plate 1. A screw tube 2 is provided on the lower surface of the retaining plate 1. A cavity is provided inside the retaining plate 1. A pipe hole is provided on the inner bottom wall of the groove 3. A concave block 4 is fixedly installed on the right side of the retaining plate 1. The interior of the concave block 4 is connected to a square tube 5 by a rotating shaft. A limiting strip 6 is inserted at the bottom of the square tube 5. A limiting hole is provided on the limiting strip 6. The setting of the limiting strip 6 and the limiting hole makes it convenient to subsequently fix the limiting strip 6 on the inner wall of the foundation pit to prevent the retaining plate 1 from tipping over.

[0029] A rod 7 is inserted into one side of the concave block 4, one end of the rod 7 passes through the retaining plate 1 and extends to the inside of the groove 3, and a limit plate 8 is fixedly installed on one end of the rod 7 located inside the groove 3. A spring 9 is arranged around the surface of the rod 7 and is located between the concave block 4 and the limit plate 8. One end of the spring 9 is fixedly connected to one side of the limit plate 8, and the other end of the spring 9 is fixedly connected to one side of the inner wall of the concave block 4. The setting of the spring 9 facilitates the spring 9 to reset the rod 7 when the square tube 5 is separated from the limit plate 8, thereby preventing the two adjacent retaining plates 1 from being stuck during the disassembly process.

[0030] A plug plate 12 is fixedly installed on one side of the retaining plate 1, and a plug plate groove 21 is provided on the other side of the retaining plate 1. The plug plate 12 is adapted to the plug plate groove 21. The plug plate 12 is adapted to the plug plate groove 21 to facilitate the subsequent connection of two adjacent retaining plates 1. A bolt 13 is inserted on the back of the square tube 5. One end of the bolt 13 is located inside the square tube 5 and contacts one side of the limit bar 6. A screw hole for threaded connection of the bolt 13 is provided on the surface of the square tube 5. The setting of the bolt 13 achieves the purpose of facilitating the sliding positioning of the limit bar 6 inside the square tube 5, and is convenient for adjusting the length of the limit bar 6 according to the internal conditions of the foundation pit.

[0031] The bottom of the retaining plate 1 is inserted into the groove 3 of the other retaining plate 1, and then the square tube 5 is rotated according to the terrain of the foundation pit, so that the limiting strip 6 on the square tube 5 contacts the inner wall of the foundation pit through the fixing nails, and one side of the inclined plate 14 contacts the inner wall of the foundation pit. The square tube 5 squeezes the insertion rod 7 on the limiting plate 8 and plugs it into the retaining plate 1, and the fixing plate 11 on the support plate 10 is fixedly connected to the inner bottom wall of the foundation pit. The fixing plate 11 of the upper retaining plate 1 is fixedly connected to one side of the retaining plate 1 through the fixing nails, so as to achieve the effect of supporting the retaining plate 1, and facilitate the mutual combination and installation of the retaining plates 1 according to foundation pits of different sizes, so that it can protect the soil on the inner wall of the foundation pit, and reduce the construction difficulty of the staff in the foundation pit.

[0032] In this embodiment,

[0033] Example 2

[0034] Reference Figure 4-5 , which is different from Example 1,

[0035] In this embodiment, a soil consolidation device for foundation pit construction includes a retaining plate 1, a groove 3 is provided on the top of the retaining plate 1, a screw tube 2 is provided on the lower surface of the retaining plate 1, a cavity is provided inside the retaining plate 1, and a pipe hole is provided on the inner bottom wall of the groove 3.

[0036] A slanted plate 14 is fixedly installed on one side of the retaining plate 1, and a slanted groove is provided on the upper surface of the slanted plate 14, which is connected to the cavity of the retaining plate 1. The lower surface of the retaining plate 1 is adapted to the groove 3, and a slot for connecting with the insertion rod 7 is provided on one side of the lower surface of the retaining plate 1, and the insertion rod 7 is adapted to the slot.

[0037] The inner bottom wall of the retaining plate 1 is inlaid with a screw ring 15, which is threadedly connected to the screw tube 2. A sealing ring 16 is fixedly installed on the inner bottom wall of the screw ring 15. The lower surface of the sealing ring 16 contacts the top of the screw tube 2. The bottom of the screw tube 2 on the previous retaining plate 1 contacts the upper surface of the sealing ring 16. Both sides of the inner wall of the screw tube 2 are connected with a one-way valve 17.

[0038] A through hole is provided on the upper surface of the retaining plate 1 for the spiral tube 2 to pass through. A sealing ring 18 is sleeved on the surface of the spiral tube 2. The inner wall of the sealing ring 18 contacts the surface of the spiral tube 2, and the outer ring of the sealing ring 18 is fixedly connected to the inner wall of the through hole.

[0039] An arc-shaped mesh plate 19 is provided inside the inclined groove on the inclined plate 14. Both sides of the arc-shaped mesh plate 19 are in contact with the inner wall of the inclined groove, and the inclined groove is connected to the cavity of the retaining plate 1 through an inclined pipe 20. The inclination angle of the inclined pipe 20 is 30-40 degrees, and the height of the feed port of the one-way valve 17 is flush with the inner bottom wall of the cavity of the retaining plate 1.

[0040] The inclined plate 14 is fitted with the inner wall of the foundation pit, and then the screw tube 2 on the upper retaining plate 1 is inserted into the inside of the next retaining plate 1, so that the bottom of the screw tube 2 is fitted with the sealing ring 16 inside the next retaining plate 1, so that the longitudinal retaining plates 1 are connected to each other, and then the two screw tubes 2 on the bottom retaining plate 1 are connected, and an air pump is used to inflate one of the holes through the pipe hole on the top retaining plate 1. The groundwater in the retaining plate 1 flows out from one of the holes under the action of air pressure, thereby achieving the purpose of waterproofing and drainage in the foundation pit, and achieving the effect of preventing water accumulation in the foundation pit from being difficult to drain. There is no need to carry equipment up and down to perform drainage operations at the bottom of the foundation pit, and it also avoids the effect of groundwater causing silt and sewage accumulation on the bottom wall of the foundation pit.

[0041] Working principle: When using the soil consolidation device, connect the two screw tubes 2 on the bottommost retaining plate 1, then place the retaining plate 1 on the inner bottom wall of the foundation pit, insert the bottom of the retaining plate 1 into the groove 3 of another retaining plate 1, and then rotate the square tube 5 according to the terrain of the foundation pit, so that the limiting strip 6 on the square tube 5 contacts the inner wall of the foundation pit through the fixing nails, and one side of the inclined plate 14 contacts the inner wall of the foundation pit. The square tube 5 squeezes the insertion rod 7 on the limiting plate 8 and plugs it into the retaining plate 1. The fixing plate 11 on the support plate 10 is fixedly connected to the inner bottom wall of the foundation pit, and the fixing plate 11 of the upper retaining plate 1 is fixedly connected to one side of the retaining plate 1 through the fixing nails. The effect of supporting the retaining plate 1 is achieved, and the retaining plates 1 can be easily combined and installed according to foundation pits of different sizes to protect the soil on the inner wall of the foundation pit. The inclined plate 14 is fitted with the inner wall of the foundation pit, and then the screw tube 2 on the upper retaining plate 1 is inserted into the interior of the next retaining plate 1, so that the bottom of the screw tube 2 is fitted with the sealing ring 16 inside the next retaining plate 1, so that the longitudinal retaining plates 1 are connected to each other, and then the two screw tubes 2 on the bottom retaining plate 1 are connected, and an air pump is used to inflate one of the holes through the pipe hole on the top retaining plate 1, and the groundwater in the retaining plate 1 flows out from one of the holes under the action of air pressure.

[0042] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A soil consolidation device for foundation pit construction, comprising a retaining plate (1), characterized in that: The top of the retaining plate (1) is provided with a groove (3), the lower surface of the retaining plate (1) is provided with a screw tube (2), the interior of the retaining plate (1) is provided with a cavity, the inner bottom wall of the groove (3) is provided with a pipe hole, a concave block (4) is fixedly installed on the right side of the retaining plate (1), the interior of the concave block (4) is rotatably connected to a square tube (5) via a rotating shaft, a limiting strip (6) is inserted into the bottom of the square tube (5), and a limiting hole is provided on the limiting strip (6); A rod (7) is inserted into one side of the concave block (4), one end of the rod (7) passes through the retaining plate (1) and extends into the interior of the groove (3), one end of the rod (7) located inside the groove (3) is fixedly mounted with a limit plate (8), a spring (9) is provided on the surface of the rod (7) and is located between the concave block (4) and the limit plate (8), one end of the spring (9) is fixedly connected to one side of the limit plate (8), and the other end of the spring (9) is fixedly connected to one side of the inner wall of the concave block (4); A slanted plate (14) is fixedly mounted on one side of the retaining plate (1), an upper surface of the slanted plate (14) is provided with an inclined groove, the inclined groove is communicated with the cavity of the retaining plate (1), the lower surface of the retaining plate (1) is adapted to the groove (3), and a slot for plugging with the insertion rod (7) is provided on one side of the lower surface of the retaining plate (1), and the insertion rod (7) is adapted to the slot; The inner bottom wall of the retaining plate (1) is inlaid with a screw ring (15), which is threadedly connected to the screw tube (2). A sealing ring (16) is fixedly installed on the inner bottom wall of the screw ring (15), and the lower surface of the sealing ring (16) contacts the top of the screw tube (2). The bottom of the screw tube (2) on the previous retaining plate (1) contacts the upper surface of the sealing ring (16), and both sides of the inner wall of the screw tube (2) are connected with a one-way valve (17); An arc-shaped mesh plate (19) is provided inside the inclined groove of the inclined plate (14), both sides of the arc-shaped mesh plate (19) are in contact with the inner wall of the inclined groove, and the inclined groove is connected to the cavity of the retaining plate (1) through an inclined pipe (20), the inclined pipe (20) has an inclination angle of 30-40 degrees, and the height of the feed port of the one-way valve (17) is flush with the inner bottom wall of the cavity of the retaining plate (1).

2. A soil consolidation device for foundation pit construction according to claim 1, characterized in that: A mounting hole is provided on one side of the retaining plate (1), the interior of the mounting hole is rotatably connected to a support plate (10) via a rotating shaft, the bottom of the support plate (10) is rotatably connected to a fixing plate (11) via a rotating shaft, and the fixing plate (11) is provided with a fixing hole, which is an inclined hole, and the two fixing holes are arranged obliquely.

3. The soil consolidation device for foundation pit construction according to claim 1, characterized in that: A plug plate (12) is fixedly mounted on one side of the retaining plate (1), and a plug plate groove (21) is provided on the other side of the retaining plate (1), the plug plate (12) is adapted to the plug plate groove (21), a bolt (13) is inserted on the back side of the square tube (5), one end of the bolt (13) located inside the square tube (5) contacts one side of the limit strip (6), and a screw hole for threaded connection of the bolt (13) is provided on the surface of the square tube (5).

4. The soil consolidation device for foundation pit construction according to claim 1, characterized in that: The upper surface of the retaining plate (1) is provided with a through hole for the spiral tube (2) to pass through, and the surface of the spiral tube (2) is sleeved with a sealing ring (18), the inner wall of the sealing ring (18) contacts the surface of the spiral tube (2), and the outer ring of the sealing ring (18) is fixedly connected to the inner wall of the through hole.

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