Foundation pit supporting device

Abstract

The utility model discloses a foundation pit supporting device which comprises a support base, a positioning strip is fixedly connected to one side of the top of the support base, a supporting plate is connected to the upper portion of the positioning strip in an inserted mode, and a supporting frame is fixedly connected to the position, located on the back face of the supporting plate, of the top of the support base. A pair of reinforcing rods are fixedly connected to the connecting position of the supporting frame and the support base, a hinge frame is fixedly connected to the tops of the reinforcing rods, a supporting rod is hinged to the side, away from the supporting frame, of the hinge frame, and a butt joint strip is fixedly connected to one side of the supporting plate; a butt joint groove is formed in the side, away from the butt joint strip, of the supporting plate and corresponds to the butt joint strip, an adjusting frame is fixedly connected to the side, away from the supporting frame, of the top of the support base, and a threaded adjusting rod is rotationally connected to the bottom of the adjusting frame. Through the design, the supporting device can be conveniently assembled and disassembled, and the supporting strength and the connecting stability of the supporting device are improved.

Description

Technical Field

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

[0002] An open-cut foundation pit is an open-air foundation pit formed by digging downward from the ground. Before digging the foundation pit, it is necessary to cast a vertical annular ground-connected wall or bored piles around the area to be excavated for support to prevent the surrounding soil from moving horizontally and causing collapse.

[0003] The support structure of the annular ground-anchored wall or cast-in-place piles not only has a long construction period, but also greatly increases the amount of steel bars and concrete used, which cannot be recycled at the end of the project, resulting in a waste of resources.

[0004] Therefore, it is particularly important to design foundation pit support devices to solve the above-mentioned defects. Utility Model Content

[0005] 1) Technical problems to be solved by the utility model

[0006] In view of the shortcomings of the prior art, the utility model designs a foundation pit support device, which aims to solve the technical problems that the support structure of the annular ground-connected wall or cast-in-place pile under the prior art has a long construction period, increases the amount of steel bars and concrete, and cannot be recycled, resulting in a waste of resources.

[0007] Technical Solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The top of the support frame is provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip, and the toothed connecting strip is connected with the toothed connecting strip on the toothed connecting strip.

[0010] As a preferred solution of the utility model, the support plates are plug-connected through docking strips and docking grooves.

[0011] As a preferred solution of the utility model, a positioning groove is provided at the bottom of the supporting plate and at a position corresponding to the positioning strip, and the supporting plate is plug-connected with the positioning strip via the positioning groove.

[0012] As a preferred solution of the utility model, a pair of mounting ears are fixedly connected to the back side of the support plate and at positions corresponding to the reinforcing rods, and one end of the reinforcing rod away from the articulated frame is bolted to the mounting ears.

[0013] As a preferred solution of the utility model, an airbag is provided inside the supporting plate, a rubber protective pad is provided on one side of the airbag located on the front side of the supporting plate, and an inflation port is installed on the top of the airbag located above the supporting plate.

[0014] As a preferred solution of the utility model, one end of the threaded adjustment rod is located at the top of the adjustment frame and is fixedly connected to a rotating handle, and the outer side of the rotating handle is provided with anti-slip grooves.

[0015] As a preferred solution of the utility model, a threaded adjustment hole is opened at the position of the positioning nail plate corresponding to the threaded adjustment rod, and the positioning nail plate is threadedly connected to the threaded adjustment rod through the threaded adjustment hole. A through hole is opened at the position of the positioning nail plate corresponding to the sliding rod, and the positioning nail plate is slidably connected to the sliding rod through the through hole. Beneficial Effects

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] First, the support plate is plugged and connected with the positioning strip through the positioning groove, and is fixed to the top of the bracket base by bolting the mounting ear and one end of the reinforcing rod, so that the support plate is in a vertical state, supporting and protecting the inner wall of the foundation pit, and is easy to assemble and disassemble and recycle the support device;

[0018] Secondly, the rotating handle drives the threaded adjustment rod to rotate, so that the positioning nail plate is threadedly connected with the threaded adjustment rod through the threaded adjustment hole to be raised and lowered, driving the cross fixing nail to pass through the perforation and embed into the soil layer, thereby limiting and fixing the entire bracket base, thereby improving the convenience of installation and disassembly;

[0019] Finally, the airbag fits well with the inner wall of the foundation pit, improving the stability of the support and protection of the support plate. The rubber protective pad provides thickened protection for the contact surface between the airbag and the foundation pit to prevent the airbag from being damaged or ruptured. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the foundation pit support device;

[0021] Figure 2 It is a partial structural schematic diagram of the foundation pit support device;

[0022] Figure 3 This is a schematic diagram of the positioning nail plate structure;

[0023] Figure 4 This is a schematic diagram of the front structure of the support plate.

[0024] In the figure: 1. bracket base; 101. positioning strip; 102. support frame; 1021. reinforcement rod; 103. hinged frame; 1031. support rod; 2. support plate; 201. docking strip; 202. docking groove; 203. positioning groove; 204. mounting ear; 205. airbag; 2051. rubber protective pad; 2052. inflation port; 3. adjustment frame; 301. threaded adjustment rod; 3011. rotating handle; 302. sliding rod; 4. positioning nail plate; 401. cross fixing nail; 4011. through hole; 402. threaded adjustment hole; 403. through hole. DETAILED DESCRIPTION

[0025] 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 them. 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. Example

[0026] The embodiment of the utility model provides a foundation pit support device, which aims to solve the technical problems that the construction period of the support structure of the annular ground-connected wall or cast-in-place pile in the prior art is long, the amount of steel bars and concrete is increased and cannot be recycled, resulting in waste of resources;

[0027] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0028] The foundation pit support device includes a support base 1, a positioning bar 101 is fixedly connected to one side of the top of the support base 1, a support frame 102 is fixedly connected to the top of the support base 1 located on the back of the support plate 2, the support frame 102 provides support for the back of the support plate 2, a pair of reinforcing rods 1021 are fixedly connected at the connection between the support frame 102 and the support base 1, the reinforcing rods 1021 enhance the supporting strength of the support frame 102, an articulated frame 103 is fixedly connected to the top of the reinforcing rod 1021, and a support rod 1031 is hinged on the side of the articulated frame 103 away from the support frame 102.

[0029] Among them, see Figure 1 and Figure 4A support plate 2 is inserted above the positioning strip 101, and a docking strip 201 is fixedly connected to one side of the support plate 2. A docking groove 202 is provided on the side of the support plate 2 away from the docking strip 201 and at a position corresponding to the docking strip 201. The support plates 2 are plugged and connected with the docking groove 202 through the docking strip 201 for docking assembly to improve the connection stability. A positioning groove 203 is provided at the bottom of the support plate 2 and at a position corresponding to the positioning strip 101. The support plate 2 is plugged and connected with the positioning strip 101 through the positioning groove 203 for positioning. A pair of mounting ears 204 are fixedly connected to the back of the support plate 2 and at a position corresponding to the reinforcing rod 1021. The end of the reinforcing rod 1021 away from the articulated frame 103 is bolted to the mounting ear 204 to provide support for the support plate 2 in a vertical state.

[0030] For further information, see Figure 4 An airbag 205 is provided inside the supporting plate 2. The airbag 205 fits against the inner wall of the foundation pit to improve the stability of the supporting protection of the supporting plate 2. A rubber protective pad 2051 is provided on one side of the airbag 205 on the front side of the supporting plate 2. The rubber protective pad 2051 provides thickened protection for the contact surface between the airbag 205 and the foundation pit to prevent the airbag 205 from being damaged or ruptured. An inflation port 2052 is installed on the top of the airbag 205 above the supporting plate 2, and the airbag 205 is inflated through the inflation port 2052.

[0031] For further information, see Figure 1 and Figure 2 The top of the bracket base 1 and the side away from the supporting frame 102 are fixedly connected with an adjusting frame 3, the bottom of the adjusting frame 3 is rotatably connected with a threaded adjusting rod 301, one end of the threaded adjusting rod 301 is located at the top of the adjusting frame 3 and is fixedly connected with a rotating handle 3011, the rotating handle 3011 drives the threaded adjusting rod 301 to rotate, so that the positioning nail plate 4 is height adjusted to fix the bracket base 1, and the outer side of the rotating handle 3011 is provided with anti-slip grooves, and the anti-slip grooves improve the anti-slip property of the rotating handle 3011, and the bottom of the adjusting frame 3 is located at the two ends of the threaded adjusting rod 301 and is fixedly connected with sliding rods 302.

[0032] For further information, see Figure 1 and Figure 3The interior of the adjustment frame 3 is slidably connected with a positioning nail plate 4, and two groups of cross fixing nails 401 are fixedly connected on both sides of the bottom of the positioning nail plate 4. The cross fixing nails 401 of the cross-shaped structure enhance the plug-in stability with the soil layer. The top of the bracket base 1 and the positions corresponding to the cross fixing nails 401 are provided with through holes 4011, and the positions of the positioning nail plate 4 corresponding to the threaded adjustment rod 301 are provided with threaded adjustment holes 402. The positioning nail plate 4 is threadedly connected with the threaded adjustment rod 301 through the threaded adjustment holes 402 for lifting and lowering, driving the cross fixing nails 401 to pass through the through holes 4011 and embed into the soil layer, thereby limiting and fixing the bracket base 1 as a whole, and the positions of the positioning nail plate 4 corresponding to the sliding rod 302 are provided with through holes 403. The positioning nail plate 4 is slidably connected with the sliding rod 302 through the through holes 403, thereby improving the lifting and lowering stability of the positioning nail plate 4.

[0033] The working process of the utility model is as follows: first, the support plate 2 is plugged and connected with the positioning bar 101 through the positioning groove 203, and is vertically fixed to the top of the bracket base 1. The end of the reinforcing rod 1021 away from the hinged frame 103 is bolted to the mounting ear 204 to provide support for the support plate 2 in a vertical state. The support frame 102 provides support for the back of the support plate 2. The reinforcing rod 1021 enhances the supporting strength of the support frame 102. The rotating handle 3011 drives the threaded adjustment rod 301 to rotate. The positioning nail plate 4 is threadedly connected with the threaded adjustment rod 301 through the threaded adjustment hole 402 to descend, driving the cross fixing nail 401 to pass through the through hole 4011 and embed into the soil layer, thereby fixing the bracket base 1 as a whole. The positioning nail plate 4 is slidably connected to the slide rod 302 through the through hole 403 to improve the stability of the lifting and lowering of the positioning nail plate 4. The cross fixing nail 401 of the cross-shaped structure enhances the plug-in stability with the soil layer. The airbag 205 is inflated through the inflation port 2052. The airbag 205 fits against the inner wall of the foundation pit to improve the stability of the support and protection of the support plate 2. The rubber protective pad 2051 provides thickened protection for the contact surface between the airbag 205 and the foundation pit to prevent the airbag 205 from being damaged or ruptured. The support plates 2 are plugged and connected through the docking strip 201 and the docking groove 202 to perform docking assembly to improve the connection stability between the support devices. The support device can be disassembled by reverse operation.

[0034] The entire operation process is simple and convenient. Compared with the existing foundation pit supporting devices, the utility model can facilitate the loading and unloading of the supporting device through design, and improve the supporting strength and connection stability of the supporting device.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit support device, comprising a support base (1), characterized in that: A positioning strip (101) is fixedly connected to one side of the top of the support base (1), a support plate (2) is inserted above the positioning strip (101), a support frame (102) is fixedly connected to the top of the support base (1) and located on the back of the support plate (2), a pair of reinforcing rods (1021) are fixedly connected to the connection between the support frame (102) and the support base (1), a hinged frame (103) is fixedly connected to the top of the reinforcing rods (1021), a support rod (1031) is hingedly connected to the side of the hinged frame (103) away from the support frame (102), a docking strip (201) is fixedly connected to one side of the support plate (2), and the support plate (2) is away from the docking strip (201). A docking groove (202) is provided on one side of the support base (1) and at a position corresponding to the docking strip (201); an adjustment frame (3) is fixedly connected to the top of the support base (1) and at a side away from the support frame (102); a threaded adjustment rod (301) is rotatably connected to the bottom of the adjustment frame (3); sliding rods (302) are fixedly connected to the two ends of the threaded adjustment rod (301) at the bottom of the adjustment frame (3); a positioning nail plate (4) is slidably connected inside the adjustment frame (3); two groups of cross fixing nails (401) are fixedly connected to the two sides of the bottom of the positioning nail plate (4); and through holes (4011) are provided on the top of the support base (1) and at positions corresponding to the cross fixing nails (401).

2. The foundation pit supporting device according to claim 1, characterized in that: The support plates (2) are plug-connected via docking strips (201) and docking grooves (202).

3. The foundation pit supporting device according to claim 1, characterized in that: A positioning groove (203) is provided at the bottom of the support plate (2) and at a position corresponding to the positioning strip (101), and the support plate (2) is plug-connected to the positioning strip (101) via the positioning groove (203).

4. The foundation pit supporting device according to claim 1, characterized in that: A pair of mounting ears (204) are fixedly connected to the back of the support plate (2) and at positions corresponding to the reinforcing rod (1021); one end of the reinforcing rod (1021) away from the hinged frame (103) is bolted to the mounting ears (204).

5. The foundation pit supporting device according to claim 1, characterized in that: An air bag (205) is provided inside the support plate (2); a rubber protective pad (2051) is provided on one side of the air bag (205) located on the front side of the support plate (2); and an inflation port (2052) is installed on the top of the air bag (205) located above the support plate (2).

6. The foundation pit supporting device according to claim 1, characterized in that: One end of the threaded adjustment rod (301) is located at the top of the adjustment frame (3) and is fixedly connected to a rotating handle (3011), and an anti-slip pattern is provided on the outer side of the rotating handle (3011).

7. The foundation pit supporting device according to claim 1, characterized in that: A threaded adjustment hole (402) is provided at a position of the positioning nail plate (4) corresponding to the threaded adjustment rod (301), and the positioning nail plate (4) is threadedly connected to the threaded adjustment rod (301) through the threaded adjustment hole (402). A through hole (403) is provided at a position of the positioning nail plate (4) corresponding to the sliding rod (302), and the positioning nail plate (4) is slidably connected to the sliding rod (302) through the through hole (403).

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