A geotechnical adjustable rectangular support device

Abstract

The utility model relates to the technical field of engineering support, concretely relates to a geotechnical engineering adjustable rectangular supporting device, including straight baffle, a plurality of support pieces are installed between two straight baffles, the support piece includes two support rods, the outer end of straight baffle towards the upper of support rod is welded and fixed with fixed plate, the outside of fixed plate is installed with fixed seat no.

Description

Technical Field

[0001] This utility model relates to the field of engineering support technology, specifically to an adjustable rectangular support device for geotechnical engineering. Background Technology

[0002] Engineering support refers to the measures taken to support, reinforce, and protect the sidewalls and surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. In underground engineering projects such as mines, tunnels, and subways, excavation operations often damage the original rock and soil structure, leading to a decrease in its stability. The purpose of engineering support is to restore or enhance the stability of the rock and soil mass, ensuring the safety of the project and personnel.

[0003] Since the width of the foundation pit varies depending on the engineering requirements, current foundation pit supports all have the function of adjustable support width. However, the current support adjustment, especially the method of hole position adjustment, can only be adjusted between adjacent holes. The adjacent holes must also take into account the material strength and cannot be set too close. Therefore, in actual operation, it is not possible to ensure that the support can fit the inner wall of the foundation pit well, and thus cannot provide good support for the foundation pit soil wall. Utility Model Content

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution: An adjustable rectangular support device for geotechnical engineering includes two straight baffles arranged symmetrically to each other. Multiple support members are installed between the upper and lower sides of the left and right straight baffles. Each support member includes two support rods. A fixing plate is welded and fixed to the upper end of the support rod facing the outer end of the straight baffle. A fixing seat is installed on the outer side of the fixing plate. Fixing holes are opened at the four corners of the fixing seat and the fixing plate. Adjustment bolts pass through the fixing holes. The fixing seat abuts against the straight baffle. A plug-in rod is installed between the two support rods. Multiple adjustment holes are opened on the support rods at equal intervals. A positioning hole coaxial with the adjustment hole is opened on the plug-in rod. Adjustment bolts pass through the positioning hole and the adjustment hole.

[0005] Furthermore, nuts are threaded onto the adjusting bolts on both sides of the fixing plate.

[0006] Furthermore, the support rod is hollow, and the plug-in rod is located inside the support rod for insertion and connection.

[0007] Furthermore, a second fixed seat is installed on the outer side of the first fixed seat away from the fixed plate. Both the first and second fixed seats are integrally formed with hinge joints. A hinge pin passes through the hinge joints of the first and second fixed seats. The outer side of the second fixed seat abuts against the straight baffle for support.

[0008] Furthermore, the outer end of the support rod connected to the fixing plate is inclined upwards.

[0009] Furthermore, the end of the straight baffle is also provided with a deflection baffle, which includes a second plate. The front and rear ends of the second plate are both equipped with a first plate. The adjacent ends of the first plate and the second plate are provided with insertion holes, and a pin is sleeved in the insertion hole. The length of the second plate is less than the length of the first plate.

[0010] Furthermore, a third fixed seat is installed on the outer side of the second fixed seat on the deflection baffle, and a fourth fixed seat is installed on the outer side of the third fixed seat. The opposing sides of the third and fourth fixed seats are integrally formed and fixed with hinge joints. A hinge pin 2 passes through the hinge joints of the third and fourth fixed seats. The outer side of the fourth fixed seat abuts against the surface of the second plate of the deflection baffle.

[0011] Furthermore, the pin one and pin two are set in opposite directions, with pin one set horizontally and pin two set vertically.

[0012] The beneficial effects of this utility model are as follows: 1. The support component of this utility model uses a two-stage adjustment method to adjust the support width. The adjustment hole and positioning hole can be adjusted by a large distance, while the adjustment bolt can be adjusted by a small distance. The two-stage adjustment facilitates adjustment according to different pit widths, while ensuring that the support can fit the inner wall of the pit and provide sufficient support effect.

[0013] 2. The deflection baffle in this utility model is designed to support irregular foundation pit surfaces, providing stable and reliable support for such surfaces. It is highly targeted and, when used in conjunction with the straight baffle, facilitates the support of foundation pits of different shapes.

[0014] 3. In this utility model, a hinged fixed seat is used to allow the support rod to abut against the support baffle. The fixed seat can be freely rotated to adjust the angle of contact with the baffle. While ensuring the maximum contact area, the support rod does not need to be adjusted significantly, which facilitates installation and use. The horizontal support of the support rod also helps to provide the baffle with the maximum support strength.

[0015] 4. In this utility model, the end of the support rod is inclined, which expands the space between the upper and lower support rods during support. When workers need to go down into the pit to work, the larger space makes it easier for workers to work, and workers do not need to climb in and out frequently. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the support component in this utility model; Figure 3 This is a perspective view of the support component in this utility model; Figure 4 This is a cross-sectional view of the support member in this utility model; Figure 5 This is an enlarged view of point A in this utility model; Figure 6 This is a schematic diagram of the deflection baffle in this utility model; Figure 7 This is a schematic diagram of the installation of the fixed base four in this utility model.

[0017] Reference numerals: 1. Straight baffle; 2. Deflection baffle; 21. Plate 1; 22. Plate 2; 23. Pin; 24. Insertion hole; 3. Support component; 31. Support rod; 32. Insertion rod; 33. Adjustment hole; 34. Positioning hole; 35. Adjusting bolt; 36. Fixing plate; 37. Fixing seat 1; 38. Fixing seat 2; 39. Hinge joint; 310. Pin 1; 311. Adjustment bolt; 312. Nut; 313. Fixing hole; 314. Fixing seat 3; 315. Fixing seat 4; 316. Pin 2. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] This application provides an adjustable rectangular support device for geotechnical engineering, and offers the following technical solution, which will be discussed below. Figures 1-7 Please provide a detailed explanation: An adjustable rectangular support device for geotechnical engineering, such as Figures 1-5 As shown, it includes two straight baffles 1 arranged symmetrically to each other. Multiple support members 3 are installed between the upper and lower sides of the left and right straight baffles 1. Each support member 3 includes two support rods 31. A fixing plate 36 is welded and fixed to the upper end of the support rods 31 facing the outer end of the straight baffle 1. A fixing seat 37 is installed on the outer side of the fixing plate 36. Fixing holes 313 are opened at the four corners of the fixing seat 37 and the fixing plate 36. Adjusting bolts 311 pass through the fixing holes 313. Nuts 312 are threaded onto the adjusting bolts 311 on both sides of the fixing plate 36. The fixed base 37 abuts against the straight baffle 1 for support. The support rod 31 is hollow and a connecting rod 32 is inserted into the support rod 31. The support rod 31 has multiple equally spaced adjustment holes 33. The connecting rod 32 has a positioning hole 34 coaxial with the adjustment hole 33. An adjustment bolt 35 passes through the positioning hole 34 and the adjustment hole 33.

[0020] When in use, place the straight baffle 1 in the trench and make it adhere to the soil walls on both sides of the trench. Then use the support member 3 for support. When supporting, first remove the adjusting bolt 35, and press the fixing seat 37 at the end of the two support rods 31 against the straight baffle 1 on both sides of the soil wall so that the plug rod 32 is inserted into the two support rods 31 at different depths to adjust according to the trench width. Align the positioning hole 34 with the nearest adjustment hole 33, and then pass the adjusting bolt 35 through the positioning hole 34 and the adjustment hole 33 to fix the plug rod 32 and the support rod 31. Then, based on the distance between the straight baffle 1 and the soil wall inside the trench, determine whether the fixing seat 37 needs to be adjusted again. When the straight baffle 1 is completely against the soil wall, no adjustment is needed. Conversely, when there is still a large gap between the straight baffle 1 and the soil wall, adjustment can be made. During adjustment, first loosen the nuts 312 on both sides of the fixing plate 36, then push the straight baffle 1 against the soil wall, then push the fixing seat 37 against the straight baffle 1, and then tighten the nuts 312 against the fixing plate 36 for fixation. The cooperation between the plug rod 32 and the support rod 31 allows for a larger distance adjustment, while the fixing seat 37 and the fixing plate 36 allow for a smaller distance adjustment, thus achieving two levels of adjustment to facilitate the adjustment operation and ensure that the straight baffle 1 can reach the soil wall for reliable protection.

[0021] like Figure 5 As shown, a second fixed seat 38 is installed on the outer side of the first fixed seat 37 away from the fixed plate 36. Both the second fixed seat 38 and the first fixed seat 37 are integrally formed and fixed with a hinge joint 39. A hinge pin 310 passes through the hinge joint 39 of the second fixed seat 38 and the first fixed seat 37. The outer side of the second fixed seat 38 abuts against the straight baffle 1 for support.

[0022] The fixed base 2 38 and the fixed base 1 37 are connected by a hinged connection through the pin 1 310. After the support rod 31 and the plug rod 32 are adjusted and connected, it is not necessary to be completely level at both ends. It is only necessary to roughly level them. The fixed base 2 38 can rotate to adjust the angle so that it is completely against the surface of the straight baffle 1 to obtain the maximum contact area, thereby reducing the pressure and avoiding local compression and deformation of the surface of the straight baffle 1.

[0023] like Figure 3 As shown, the outer end of the support rod 31 connected to the fixing plate 36 is inclined upward.

[0024] During installation, the support member 3 located at the bottom of the trench should be installed with the end of the support rod 31 tilted upwards, while the support member 3 located at the top of the trench should be installed with the end of the support rod 31 tilted downwards. This arrangement expands the space between the support members 3 at the bottom and top of the trench, making it easier for workers to carry out their work when personnel need to work inside the trench.

[0025] like Figure 2 and Figure 5 As shown, a deflection baffle 2 is also provided at the end of the straight baffle 1. The deflection baffle 2 includes a second plate 22. A first plate 21 is installed at both the front and rear ends of the second plate 22. Insertion holes 24 are opened at the adjacent ends of the first plate 21 and the second plate 22. A pin 23 is sleeved in the insertion hole 24. The length of the second plate 22 is less than the length of the first plate 21.

[0026] When the trench surface is straight, straight baffle 1 can be used to better fit the trench surface. When the trench surface is curved or bends due to its direction, deflection baffle 2 can be used. The first plate 21 and the second plate 22 of deflection baffle 2 are hinged by pin 23. Both the first plate 21 and the second plate 22 can rotate freely. The first plate 21 and the second plate 22 can fit the trench surface at different positions at the same time. The straight baffle 1 and the deflection baffle 2 work together to ensure better support for complex trench surfaces.

[0027] like Figure 6 and Figure 7 As shown, a third fixing seat 314 is installed on the outer side of the second fixing seat 38 on the deflection baffle 2, and a fourth fixing seat 315 is installed on the outer side of the third fixing seat 314. The opposing sides of the third fixing seat 314 and the fourth fixing seat 315 are integrally formed and fixed with a hinge joint 39. A hinge pin 316 passes through the hinge joint 39 of the third fixing seat 314 and the fourth fixing seat 315. The outer side of the fourth fixing seat 315 is welded to the surface of the plate 22 of the deflection baffle 2.

[0028] Plate 22 is inclined. If the support 3 at this position still needs to be supported against the two plates 22 in a relatively flat state, it needs to match the inclined surface features of plate 22. Therefore, fixing seat 314 and fixing seat 415 are provided. Fixing seat 415 and fixing seat 314, as well as fixing seat 28 and fixing seat 1 37, can rotate relative to each other to adjust the angle. Fixing seat 415 can still ensure the flat support of the support 3 at this position while maintaining the maximum contact area with plate 22.

[0029] like Figure 7 As shown, pin 1 310 and pin 2 316 are set in opposite directions; pin 1 310 is set horizontally, and pin 2 316 is set vertically.

[0030] The different orientations of the two pins mean that they can rotate in different directions. Fixed seat 4 315 and fixed seat 3 314 can rotate laterally, while fixed seat 2 38 and fixed seat 1 37 can rotate vertically. The different directions of rotation maximize the range of adjustable angles for easy adjustment.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable rectangular support device for geotechnical engineering, comprising two straight baffles (1) arranged symmetrically to each other, characterized in that, Multiple support members (3) are installed between the upper and lower sides of the left and right straight baffles (1). The support members (3) include two support rods (31). A fixing plate (36) is welded and fixed to the upper end of the support rod (31) facing the outer end of the straight baffle (1). A fixing seat (37) is installed on the outer side of the fixing plate (36). Fixing holes (313) are opened at the four corners of the fixing seat (37) and the fixing plate (36). Adjusting bolts (311) pass through the fixing holes (313). The fixing seat (37) abuts against the straight baffle (1). A plug-in rod (32) is installed between the two support rods (31). Multiple adjusting holes (33) with equal spacing are opened on the support rod (31). A positioning hole (34) with the same axis as the adjusting hole (33) is opened on the plug-in rod (32). Adjusting bolts (35) pass through the positioning hole (34) and the adjusting hole (33).

2. The adjustable rectangular support device for geotechnical engineering according to claim 1, characterized in that, Nuts (312) are threaded onto the adjusting bolts (311) on both sides of the fixing plate (36).

3. The adjustable rectangular support device for geotechnical engineering according to claim 1, characterized in that, The support rod (31) is hollow, and the plug rod (32) is located inside the support rod (31) for insertion and connection.

4. The adjustable rectangular support device for geotechnical engineering according to claim 2, characterized in that, A second fixed seat (38) is installed on the outer side of the fixed seat (37) away from the fixed plate (36). Both the second fixed seat (38) and the first fixed seat (37) are integrally formed and fixed with a hinge joint (39). A hinge pin (310) passes through the hinge joint (39) of the second fixed seat (38) and the first fixed seat (37). The outer side of the second fixed seat (38) abuts against the straight baffle (1) for support.

5. The adjustable rectangular support device for geotechnical engineering according to claim 3, characterized in that, The outer end of the support rod (31) connected to the fixing plate (36) is inclined upward.

6. The adjustable rectangular support device for geotechnical engineering according to claim 4, characterized in that, The end of the straight baffle (1) is also provided with a deflection baffle (2). The deflection baffle (2) includes a second plate (22). The front and rear ends of the second plate (22) are both equipped with a first plate (21). The adjacent ends of the first plate (21) and the second plate (22) are provided with insertion holes (24). A pin (23) is sleeved in the insertion hole (24). The length of the second plate (22) is less than the length of the first plate (21).

7. The adjustable rectangular support device for geotechnical engineering according to claim 6, characterized in that, A third fixed seat (314) is installed on the outside of the second fixed seat (38) on the deflection baffle (2), and a fourth fixed seat (315) is installed on the outside of the third fixed seat (314). The opposing sides of the third fixed seat (314) and the fourth fixed seat (315) are integrally formed and fixed with a hinge joint (39). A hinge pin (316) passes through the hinge joint (39) of the third fixed seat (314) and the fourth fixed seat (315). The outside of the fourth fixed seat (315) abuts against the surface of the plate part (22) of the deflection baffle (2).

8. The adjustable rectangular support device for geotechnical engineering according to claim 7, characterized in that, The pin one (310) and pin two (316) are set in opposite directions, with pin one (310) set horizontally and pin two (316) set vertically.

Images