Foundation pit wall supporting structure

Abstract

The utility model discloses a foundation pit wall supporting structure which comprises two supporting plates and a telescopic rod assembly, the two supporting plates are arranged on the two sides in a foundation pit, the bottoms of the supporting plates make contact with the inner bottom wall of the foundation pit, a transverse rod is fixedly arranged on the inner side wall of each supporting plate, a sliding groove is formed in the inner side of each transverse rod, and a protruding block is fixedly arranged on one side in each sliding groove. A sliding block is slidably embedded in the other side of the interior of the sliding groove and connected with the transverse rod through a displacement assembly, a telescopic rod assembly is located between the two supporting plates, one end of the telescopic rod assembly is rotationally connected with the protruding block through a bolt, and the other end of the telescopic rod assembly is rotationally connected with the sliding block through a bolt. Through the arrangement, the device can support the inclined inner side wall of the foundation pit, and the convenience of the device during installation is improved.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit support technology, specifically relating to a foundation pit wall support structure. Background Technology

[0002] For some shallow trench-shaped foundation pits without groundwater, the existing technology generally uses retaining plate support to support the inner wall. The retaining plate support is generally composed of support plates and cross braces. During construction, the support plates are attached to the inner wall of the foundation pit, and then the cross braces provide lateral support to the support plates on both sides.

[0003] Chinese patent CN222648804U discloses a novel foundation pit support structure. This structure includes a first support plate, a second support plate, and multiple support devices. Multiple rows of limiting blocks are fixedly installed on the first support plate, each with a limiting groove. Multiple rows of limiting frames are fixedly installed on the second support plate. Each support device includes a first insert plate, a threaded rod, an extension plate, and a rotating block. The end of the first insert plate is adapted to the size of the limiting groove, and the size of the rotating block is adapted to the size of the limiting frame. In this structure, after one end of the first insert plate is inserted into the limiting groove, the distance between the extension plate and the first insert plate is increased, and the rotating block is inserted into the limiting frame. This allows the first and second support plates to abut against the two opposite inner walls of the foundation pit, thereby supporting the foundation pit walls.

[0004] When using the above solution, the first and second support plates need to be adjusted to be in a vertical position so that one end of the first insertion plate and the rotating block can be inserted into the limiting groove and the limiting frame respectively. However, some pit inner walls have a certain slope, and when the first and second support plates are attached to the pit inner wall, they cannot remain vertical, which leads to poor applicability of the above solution. Utility Model Content

[0005] The present invention aims to provide a foundation pit wall support structure to solve the problem of poor applicability of the above-mentioned solutions.

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

[0007] A foundation pit wall support structure includes a support plate and a telescopic rod assembly. Two sets of support plates are arranged on both sides of the foundation pit. The bottom of the support plate contacts the inner bottom wall of the foundation pit. A crossbar is fixedly installed on the inner side wall of the support plate. The inner side of the crossbar has a groove. A protrusion is fixedly installed on one side of the groove, and a slider is slidably embedded on the other side of the groove. The slider is connected to the crossbar through a displacement assembly. The telescopic rod assembly is located between the two support plates. One end of the telescopic rod assembly is rotatably connected to the protrusion by a bolt, and the other end is rotatably connected to the slider by a bolt.

[0008] The principle and effects of this technical solution:

[0009] When using this device, the outer walls of the two support plates are attached to the two inner walls of the pit, and the bottom of the support plates is in contact with the inner bottom wall of the pit. The slider inside the crossbar on one of the support plates is moved by the displacement assembly so that it is in the same vertical plane as the protrusion on the other support plate. Then the telescopic rod assembly is extended, and one end of the telescopic rod assembly is rotatably connected to the protrusion by a bolt, and the other end is rotatably connected to the slider by a bolt.

[0010] With the above-mentioned configuration, when the support plate is in contact with the inclined inner wall of the foundation pit, the telescopic rod assembly can provide lateral support for the two support plates, thereby enabling the device to support the inclined inner wall of the foundation pit and improving the applicability of the device. At the same time, by using the displacement assembly to move the slider, the installer can adjust the slider installed on one support plate and the protrusion on the other support plate to be located on the same vertical plane without moving the support plate, thereby facilitating the connection of the telescopic rod assembly and improving the ease of installation of the device.

[0011] In this invention, the telescopic rod assembly includes a bidirectional screw, with sleeves fitted at both ends of the screw. Two connecting plates are fixedly arranged at intervals on the outer end walls of the sleeves. Connecting seats are fixedly arranged at the ends of the protrusion and the slider away from the support plate. Each connecting seat is located between the two connecting plates on the outer end walls of adjacent sleeves. Bolts are rotatably inserted through the two connecting plates and the corresponding connecting seats, with a nut fitted at one end of each bolt. Through this arrangement, the telescopic rod assembly achieves the purpose of rotatably connecting one end to the protrusion via bolts and the other end to the slider via bolts.

[0012] In this invention, a handle is fixedly provided on the outer wall of the middle part of the bidirectional screw. This design facilitates the rotation of the bidirectional screw by the installer, improving the practicality of the device.

[0013] In this invention, the displacement component includes a threaded rod that is rotatably disposed within the groove along the length of the groove, and the slider is fitted onto the threaded rod.

[0014] The principle and effects of this technical solution:

[0015] Because the slide groove restricts the rotation of the slider, the slider moves axially along the threaded rod as the threaded rod rotates.

[0016] The above settings allow installers to easily move the slider and prevent it from moving further once it has been moved to the appropriate position.

[0017] In this invention, two rotating seats are fixedly arranged at intervals on the other side of the slide groove. Each rotating seat has a semi-circular notch on the side away from the support plate. A shaft cover is detachably installed on the side of the rotating seat away from the support plate. The shaft cover and the rotating seat form a rotating groove. Both ends of the threaded rod are rotatably inserted into the corresponding rotating groove. This design allows installers to easily disassemble the threaded rod for replacement of damaged parts, facilitating the production of the device while reducing its usage and maintenance costs.

[0018] In this invention, a handle is fixedly provided at the end of the threaded rod. This design allows installers to easily rotate the threaded rod, improving the practicality of the device.

[0019] In this invention, the support plate has multiple through mounting holes arrayed on its surface, and the crossbar has multiple threaded holes spaced apart on the side near the support plate that can be aligned with the mounting holes. Initially, the support plate and crossbar are separate. During installation, the threaded holes of the crossbar are aligned with the mounting holes on the support plate, and the self-locking bolts are passed through the mounting holes, with their threaded sections fitting into the threaded holes. This design allows for easy assembly and disassembly of the support plate and crossbar, reducing production difficulty and facilitating storage and transportation of the support plate and crossbar, thus improving the practicality of the device. Attached Figure Description

[0020] Figure 1 This is an isometric view of the overall structure of this utility model;

[0021] Figure 2 Disassembly of some components of this utility model Figure 1 ;

[0022] Figure 3 Disassembly of some components of this utility model Figure 2 ;

[0023] Figure 4 Disassembly of some components of this utility model Figure 3 . Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0025] The reference numerals in the accompanying drawings include: 10, support plate; 11, mounting hole; 20, crossbar; 21, slide groove; 22, protrusion; 23, slider; 24, rotating seat; 241, notch; 25, shaft cover; 26, screw hole; 31, threaded rod; 32, handle; 40, telescopic rod assembly; 41, double-acting screw; 42, sleeve; 43, connecting plate; 44, handle; 50, bolt; 51, nut; 60, connecting seat.

[0026] Example:

[0027] As attached Figure 1-4 As shown, this utility model discloses a foundation pit wall support structure, including a support plate 10 and a telescopic rod assembly 40. Two sets of support plates 10 are arranged on both sides of the foundation pit. The bottom of the support plate 10 contacts the inner bottom wall of the foundation pit. A crossbar 20 is fixedly arranged on the inner side wall of the support plate 10. The inner side of the crossbar 20 has a groove 21. A protrusion 22 is fixedly arranged on one side of the groove 21. A slider 23 is slidably embedded on the other side of the groove 21. The slider 23 is connected to the crossbar 20 through a displacement assembly. The telescopic rod assembly 40 is located between the two support plates 10. One end of the telescopic rod assembly 40 is rotatably connected to the protrusion 22 inside the crossbar 20 on one support plate 10 by a bolt 50. The other end is rotatably connected to the slider 23 inside the crossbar 20 on the other support plate 10 by a bolt 50. Multiple crossbars 20 are arranged at intervals from top to bottom on the inner side wall of the support plate 10.

[0028] In this embodiment, the telescopic rod assembly 40 includes a bidirectional screw 41, with sleeves 42 fitted at both ends of the bidirectional screw 41. Two connecting plates 43 are fixedly arranged at intervals on the outer end walls of the sleeves 42. Connecting seats 60 are fixedly arranged at the ends of the protrusions 22 and the sliders 23 away from the support plate 10. Each connecting seat 60 is located between the two connecting plates 43 on the outer end walls of adjacent sleeves 42. Bolts 50 are rotatably inserted through the two connecting plates 43 and the corresponding connecting seats 60. A nut 51 is fitted at one end of the bolt 50. The distance between the two connecting plates 43 is greater than the width of the connecting seats 60. The diameter of the through holes on the connecting plates 43 and the connecting seats 60 for inserting the bolts 50 is greater than the diameter of the bolts 50. The width of the bolt cap and the nut 51 is greater than the diameter of the through holes.

[0029] In this embodiment, a handle 44 is fixedly provided on the outer wall of the middle part of the bidirectional screw 41.

[0030] In this embodiment, the displacement component includes a threaded rod 31 that is rotatably disposed within the slide groove 21 along the length of the slide groove 21, and the slider 23 is fitted onto the threaded rod 31.

[0031] In this embodiment, two rotating seats 24 are fixedly arranged at intervals on the other side of the slide groove 21. The rotating seat 24 is provided with a semi-circular notch 241 on the side away from the support plate 10. The rotating seat 24 is detachably provided with a shaft cover 25 on the side away from the support plate 10 by a self-locking bolt. The shaft cover 25 and the rotating seat 24 form a rotating groove. The two ends of the threaded rod 31 are respectively rotatably inserted into the corresponding rotating groove.

[0032] In this embodiment, a handle 32 is fixedly provided at the end of the threaded rod 31.

[0033] In this embodiment, the surface of the support plate 10 is provided with a plurality of through mounting holes 11, and the crossbar 20 is provided with a plurality of screw holes 26 at intervals on the side near the support plate 10, which can be aligned with the mounting holes 11.

[0034] The specific implementation process is as follows:

[0035] When using this device, the outer walls of the two support plates 10 are attached to the two inner walls of the pit, and the bottom of the support plate 10 is in contact with the inner bottom wall of the pit. The slider 23 inside the crossbar 20 on one of the support plates 10 is moved by the displacement assembly so that it is located on the same vertical plane as the protrusion 22 on the other support plate 10. Then the telescopic rod assembly 40 is extended, and one end of the telescopic rod assembly 40 is rotatably connected to the protrusion 22 by bolt 50, and the other end is rotatably connected to the slider 23 by bolt 50.

[0036] Because the slide groove 21 restricts the rotation of the slider 23, the slider 23 moves along the axial direction of the threaded rod 31 as the threaded rod 31 rotates.

[0037] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A foundation pit wall support structure characterized by, The utility model relates to a foundation pit support structure, including: Support plate, two groups are arranged in two sides in foundation pit, the bottom of support plate is in contact with the inner bottom wall of foundation pit, and the inner side wall of support plate is fixedly provided with a cross bar, the inner side of cross bar has a sliding groove, one side in the inside of sliding groove is fixedly provided with a protruding block, the other side in the inside of sliding groove is slidably embedded with a sliding block, the sliding block is connected with the cross bar through a displacement assembly; Telescopic rod assembly, the telescopic rod assembly is located between two support plates, one end of telescopic rod assembly is rotatably connected with the protruding block through a bolt, the other end is rotatably connected with the sliding block through a bolt.

2. The excavation wall bracing structure according to claim 1, wherein: The telescopic rod assembly includes a bidirectional screw rod, the two ends of bidirectional screw rod are respectively matched with sleeve, the outer side end wall of sleeve is fixedly provided with two connecting plates at intervals, the protruding block and the sliding block are fixedly provided with connecting seats away from the support plate, each connecting seat is located between the two connecting plates of the outer side end wall of adjacent sleeve, the bolt is rotatably provided in the two connecting plates and the corresponding connecting seat, and one end of the bolt is matched with a nut.

3. The wall retaining structure of claim 2, wherein: The outer side wall of the middle part of bidirectional screw rod is fixedly provided with a handle.

4. The excavation wall bracing structure according to Claim 1, wherein: The displacement assembly includes a threaded rod rotatably arranged in the sliding groove along the length direction of sliding groove, and the sliding block is matched with the threaded rod.

5. The wall retaining structure of claim 4, wherein: The other side in the inside of sliding groove is fixedly provided with two rotating seats at intervals, the rotating seat is provided with a semicircular notch away from the support plate, the rotating seat is detachably provided with a shaft cover away from the support plate, the shaft cover and the rotating seat surround a rotating groove, and the two ends of threaded rod are rotatably provided in the corresponding rotating groove.

6. A wall retaining structure for an excavation according to claim 5 wherein: The end of threaded rod is fixedly provided with a handle.

7. The excavation wall bracing structure according to Claim 1, wherein: The surface of support plate is arrayed with a plurality of through mounting holes, and the side of cross bar close to support plate is provided with a plurality of screw holes capable of aligning with mounting holes at intervals.

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