Deep foundation pit supporting and reinforcing device

Abstract

The utility model discloses a deep foundation pit supporting and reinforcing device, which relates to the technical field of deep foundation pit supporting and comprises a supporting and reinforcing plate, adjusting and fixing mechanisms are arranged on the left side and the right side above the rear end of the supporting and reinforcing plate, and positioning mechanisms are arranged on the left side and the right side below the rear end of the supporting and reinforcing plate. And the adjusting and fixing mechanism comprises a T-shaped adjusting plate, the T-shaped adjusting plate is fixedly installed on the rear side of the supporting and reinforcing plate, a plurality of adjusting through holes penetrating left and right are evenly formed in the parallel position of the T-shaped adjusting plate and the supporting and reinforcing plate, a rotating rod is arranged on the front side of the T-shaped adjusting plate, and a supporting rod is fixedly installed on the rear side of the rotating rod. According to the supporting and reinforcing device for the deep foundation pit, the T-shaped adjusting plates, the adjusting through holes, the positioning side plates, the butt joint holes, the long bolts, the nuts and the supporting rods are matched with one another, so that the supporting rods of the supporting and reinforcing device for the deep foundation pit can be adjusted according to different ground heights of the foundation pit, and the applicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of deep foundation pit support technology, specifically to a deep foundation pit support and reinforcement device. Background Technology

[0002] Foundation pit support refers to the measures taken to support, reinforce, and protect the sidewalls and surrounding environment of the foundation pit in order to ensure the safety of underground structure construction and the surrounding environment. After the foundation pit is excavated, the soil around the ground loses its supporting force and may collapse, causing danger. Therefore, support and reinforcement are necessary.

[0003] Chinese patent document CN216920370U discloses a support and reinforcement device for deep foundation pit construction, comprising a foundation pit, a support plate on the left side wall of the foundation pit, support rods hinged to the front and rear sides of the right side wall of the support plate, two sets of stabilizing plates at the bottom of the foundation pit, one end of each set of support rods hinged to the top of the two sets of stabilizing plates, adjusting components hinged to the side walls of the two sets of support rods, mounting plates on the front and rear side walls of the support plate, and reinforcement components on the upper and lower sides of the left side walls of the two sets of mounting plates. The reinforcement components include a plug on the left side wall of the mounting plate, a fixing block slidably connected within a cavity, and a tie rod movably penetrating the right side wall of the mounting plate. This device, under the action of the support rods, stabilizing plates, and stabilizing rods, can support the support plate against the foundation pit side wall, and then reinforce the support plate against the foundation pit side wall under the action of the through groove, insert rod, rotating shaft, fixing block, plug, and tie rod, thereby enhancing the support strength and improving construction safety. The following problems exist with the existing technology:

[0004] Although the aforementioned literature suggests using support rods for reinforcement, the support rods are fixed to the foundation pit ground by relying on the stabilizing plate, and since the length of the support rods is fixed, uneven ground in the foundation pit will cause the two support rods to be unable to provide synchronous and stable support, resulting in reduced reinforcement effect and poor applicability. Utility Model Content

[0005] This invention provides a deep foundation pit support and reinforcement device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A deep foundation pit support and reinforcement device includes a support and reinforcement plate. Adjustment and fixing mechanisms are provided on both the upper left and right sides of the rear end of the support and reinforcement plate, and positioning mechanisms are provided on both the lower left and right sides of the rear end of the support and reinforcement plate. Each adjustment and fixing mechanism includes a T-shaped adjustment plate, which is fixedly installed on the rear side of the support and reinforcement plate. Several through-holes are evenly distributed on the T-shaped adjustment plate parallel to the support and reinforcement plate. A rotating rod is provided on the front side of the T-shaped adjustment plate, and a support rod is fixedly installed on the rear side of the rotating rod. Positioning side plates are movably installed at both ends of the rotating rod. Limiting slides are fixedly installed on the rear sides of the opposing surfaces of the two positioning side plates. The two limiting slides are slidably connected to the rear sides of the T-shaped adjustment plate parallel to it. Both positioning side plates have through-holes that align with one of the several adjustment holes. Long bolts are threaded through the inner rings of the adjustment holes and the two through-holes, and nuts are threaded onto the outer walls of the long bolts.

[0008] A further improvement of this utility model is that an anti-detachment plate is fixedly installed at the bottom of the T-shaped adjusting plate, and the bottoms of the two limiting slides overlap with the top of the anti-detachment plate.

[0009] A further improvement of this utility model is that: a movable upright plate is movably installed at the end of the support rod away from the rotating rod, and an installation plate is fixedly installed at the bottom of the movable upright plate. The installation plate has two through-holes, which are located on the left and right sides of the movable upright plate, respectively, and a long fixing screw is provided through the inner circle of the fixing hole.

[0010] A further improvement of this utility model is that: the top of the support and reinforcement plate is provided with a telescopic groove, a telescopic plate is slidably installed in the inner cavity of the telescopic groove, a limit plate is fixedly installed on the top of the telescopic plate, a plurality of threaded holes are evenly provided on the left and right sides of the rear end of the telescopic plate, a plurality of positioning holes penetrating into the inner cavity of the telescopic groove are evenly provided on the left and right sides of the rear end of the support and reinforcement plate, and the plurality of positioning holes on the left and right sides are aligned front and back with the plurality of threaded holes on the left and right sides of the rear end of the telescopic plate, and a fixing bolt is provided through the uppermost two inner rings of the plurality of positioning holes on the left and right sides, and the front ends of the two fixing bolts on the left and right sides are threadedly connected to the inner rings of two of the plurality of threaded holes on the left and right sides.

[0011] A further improvement of this utility model is that magnetic dustproof plates are movably installed on both the left and right sides of the rear end of the support and reinforcement plate. The support and reinforcement plate is made of metal. Both magnetic dustproof plates are attracted to the rear side of the support and reinforcement plate. The two magnetic dustproof plates on the left and right sides are respectively located on the rear side of a number of positioning holes opened on the left and right sides of the rear end of the support and reinforcement plate, excluding the top two.

[0012] A further improvement of this utility model is that the positioning mechanism includes a lifting adjustment plate, which is fixedly connected to the rear side of the support reinforcement plate. A sliding groove is provided on the rear side of the lifting adjustment plate, and limiting sliding grooves that extend to the inner cavity of the sliding groove are provided on both the left and right sides of the lifting adjustment plate. A cross-shaped slider is slidably installed in the sliding groove and the inner cavity of the two limiting sliding grooves. An extension plate is fixedly installed on the front side of the cross-shaped slider, and a positioning screw is fixedly installed on the bottom of the extension plate.

[0013] A further improvement of this utility model is that: the left and right ends of the cross-shaped slider are located inside the limiting slide groove and are not on the same vertical line as the left and right sides of the lifting adjustment plate; locking threaded holes are provided on both the left and right sides of the cross-shaped slider, and locking bolts are installed on the inner ring threads of the locking threaded holes.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a deep foundation pit support and reinforcement device. Through the cooperation of T-shaped adjustment plate, adjustment through hole, positioning side plate, docking hole, long bolt, nut and support rod, the support rod of the deep foundation pit support and reinforcement device can be adjusted according to different foundation pit ground heights, thereby improving applicability.

[0016] 2. This utility model provides a deep foundation pit support and reinforcement device. Through the cooperation between the support and reinforcement plate, the expansion groove, the expansion plate, the limiting plate, the threaded hole, the positioning hole, and the fixing bolt, the height of the support and reinforcement plate used to fit the inner wall of the foundation pit can be adjusted according to the depth of the foundation pit. This avoids the inability to fully support the foundation pit when the depth is too deep, and improves the comprehensiveness of the support range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustment and fixing mechanism of the present invention.

[0019] Figure 3 This is a schematic diagram of the mounting plate of the present invention.

[0020] Figure 4 This is a schematic diagram of the support and reinforcement plate of the present invention.

[0021] Figure 5 This is a schematic diagram of the positioning mechanism of the present invention.

[0022] In the diagram: 1. Support and reinforcement plate; 11. Expansion groove; 12. Expansion plate; 121. Limiting plate; 122. Threaded hole; 13. Positioning hole; 131. Fixing bolt; 14. Magnetic dustproof plate; 2. Adjustment and fixing mechanism; 21. T-shaped adjustment plate; 22. Adjustment through hole; 23. Rotating rod; 24. Positioning side plate; 25. Limiting slide bar; 26. Docking hole; 27. Long bolt; 28. Nut; 29. ​​Support rod; 291. Movable upright plate; 292. Mounting plate; 293. Fixing hole; 294. Fixing long screw; 3. Positioning mechanism; 31. Lifting and adjusting plate; 32. Slide groove; 33. Limiting slide groove; 34. Cross-shaped slider; 35. Extension plate; 36. Positioning screw; 37. Locking threaded hole; 38. Locking bolt. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand

[0024] Understood. The present invention will now be further described in conjunction with specific implementation methods.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model provides a deep foundation pit support and reinforcement device, including a support and reinforcement plate 1. Adjustment and fixing mechanisms 2 are provided on both the upper left and right sides of the rear end of the support and reinforcement plate 1, and positioning mechanisms 3 are provided on both the lower left and right sides of the rear end of the support and reinforcement plate 1. The adjustment and fixing mechanism 2 includes a T-shaped adjustment plate 21, which is fixedly installed on the rear side of the support and reinforcement plate 1. Several through-holes 22 are evenly distributed on the T-shaped adjustment plate 21 parallel to the support and reinforcement plate 1. A rotating rod 23 is provided on the front side of the T-shaped adjustment plate 21, and a support rod 29 is fixedly installed on the rear side of the rotating rod 23. Positioning side plates 24 are movably installed at both ends of the rotating rod 23. Limiting slides 25 are fixedly installed on the rear sides of the opposite surfaces of the two positioning side plates 24. The two limiting slides 25 and the T-shaped adjustment plate 21... The parallel section is slidably connected to the rear. Both positioning side plates 24 are provided with through holes 26. The through holes 26 are aligned with one of the several adjustment holes 22. Long bolts 27 are installed through the inner rings of the adjustment holes 22 and the two through holes 26. Nuts 28 are installed on the outer threads of the long bolts 27. The bottom of the T-shaped adjustment plate 21 is fixedly installed with an anti-detachment plate. The bottom of the two limit slides 25 overlaps with the top of the anti-detachment plate. The end of the support rod 29 away from the rotating rod 23 is movably installed with a movable upright plate 291. The bottom of the movable upright plate 291 is fixedly installed with an installation plate 292. The installation plate 292 is provided with two through holes 293. The two holes 293 are located on the left and right sides of the movable upright plate 291, and long fixing screws 294 are installed through the inner rings of the holes 293.

[0026] In use, the support reinforcement plate 1 is placed against the inner wall of the pit, and the support rod 29 is rotated backward through the movable connection between the two positioning side plates 24 by the rotating rod 23 until the mounting plate 292 contacts the ground. When the pit ground height of the two mounting plates 292 is different, the mounting plate 292 at the lower position will drive the two positioning side plates 24 to slide downward on the outer wall of the T-shaped adjusting plate 21 by the limiting slide strip 25, so that the two mounting plates 292 can contact the ground at different heights. Then, the long bolt 27 can be passed through the docking hole 26 and the adjusting through hole 22, and the nut 28 can be tightened from the other end to complete the height fixation of the support rod 29. At this time, the long fixing screw 294 is passed through the fixing hole 293 and hammered into the pit ground to complete the reinforcement.

[0027] like Figure 4 As shown, the top of the support reinforcement plate 1 has a telescopic groove 11, and a telescopic plate 12 is slidably installed in the inner cavity of the telescopic groove 11. A limit plate 121 is fixedly installed on the top of the telescopic plate 12. Several threaded holes 122 are evenly opened on the left and right sides of the rear end of the telescopic plate 12. Several positioning holes 13 penetrating into the inner cavity of the telescopic groove 11 are evenly opened on the left and right sides of the rear end of the support reinforcement plate 12. The positioning holes 13 on the left and right sides are aligned with the threaded holes 122 on the left and right sides of the rear end of the telescopic plate 12. The top two inner rings are provided with fixing bolts 131. The front ends of the two fixing bolts 131 on the left and right sides are threaded to the inner rings of two of the several threaded holes 122 on the left and right sides. Magnetic dustproof plates 14 are movably installed on the left and right sides of the rear end of the support and reinforcement plate 1. The support and reinforcement plate 1 is made of metal. The two magnetic dustproof plates 14 are attracted to each other on the rear side of the support and reinforcement plate 1. The two magnetic dustproof plates 14 on the left and right sides are respectively located on the rear side of several positioning holes 13 opened on the left and right sides of the rear end of the support and reinforcement plate 1, excluding the rear side of the top two.

[0028] The support height of the support reinforcement plate 1 can be extended by pulling the telescopic plate 12 upwards, and the height of the telescopic plate 12 can be fixed by threading two fixing bolts 131 through the two positioning holes 13 on the top left and right sides and threaded holes 122. This can adapt to foundation pits of various depths. After the height of the telescopic plate 12 is fixed, the magnetic dustproof plate 14 can be rotated and attracted to the back of the support reinforcement plate 1 to cover the remaining positioning holes 13 and prevent dust from entering the foundation pit.

[0029] like Figure 5As shown, the positioning mechanism 3 includes a lifting adjustment plate 31, which is fixedly connected to the rear side of the support reinforcement plate 1. A sliding groove 32 is provided on the rear side of the lifting adjustment plate 31. Limiting sliding grooves 33 that penetrate into the inner cavity of the sliding groove 32 are provided on both the left and right sides of the lifting adjustment plate 31. A cross-shaped slider 34 is slidably installed in the inner cavity of the sliding groove 32 and the two limiting sliding grooves 33. An extension plate 35 is fixedly installed on the front side of the cross-shaped slider 34. A positioning screw 36 is fixedly installed on the bottom of the extension plate 35. The left and right ends of the cross-shaped slider 34 are located inside the limiting sliding grooves 33 and are not on the same vertical line as the left and right sides of the lifting adjustment plate 31. Locking thread holes 37 are provided on both the left and right sides of the cross-shaped slider 34. Locking bolts 38 are installed in the inner thread of the locking thread holes 37.

[0030] To improve the support stability of the support reinforcement plate 1, the cross-shaped slider 34 in the lifting adjustment plate 31 can be slid downwards until it contacts the ground. Then, a tool can be used to align and hammer the extension plate 35, thereby driving the positioning screw 36 into the ground to complete the reinforcement. After the locking bolt 38 is threadedly connected to the locking threaded hole 37, it is used to press against the left and right sides of the lifting adjustment plate 31 to reinforce the positioning screw 36. At the same time, the cross-shaped slider 34 can be limited by sliding at both ends in the limiting groove 33 to maintain the stability of the up and down sliding and prevent the positioning screw 36 from falling off.

[0031] The working principle of this deep foundation pit support and reinforcement device will be explained in detail below.

[0032] like Figure 1-5As shown, during use, after the support reinforcement plate 1 is placed against the inner wall of the pit, the support rod 29 is rotated backward via the movable connection between the two positioning side plates 24 using the rotating rod 23 until the mounting plate 292 contacts the ground. When the pit ground heights of the two mounting plates 292 are inconsistent, the mounting plate 292 at the lower position will cause the two positioning side plates 24 to slide downward on the outer wall of the T-shaped adjusting plate 21 via the limiting slide strip 25, so that the two mounting plates 292 can contact the ground at different heights. Then, the long bolt 27 can be passed through the docking hole 26 and the adjusting through hole 22, and tightened from the other end with the nut 28 to complete the height fixation of the support rod 29. At this time, the long fixing screw 294 is passed through the fixing hole 293 and hammered into the pit ground to complete the reinforcement. At the same time, the support height of the support reinforcement plate 1 can be extended by pulling the telescopic plate 12 upward and fixing it with two fixing bolts 13. 1. The height of the telescopic plate 12 can be fixed by threading through the two positioning holes 13 on the top left and right sides and the threaded hole 122, thus adapting to foundation pits of various depths. After the height of the telescopic plate 12 is positioned, the magnetic dustproof plate 14 can be rotated and adsorbed to the back of the support reinforcement plate 1 to cover the remaining positioning holes 13, preventing dust from entering the foundation pit. In order to improve the support stability of the support reinforcement plate 1, the cross-shaped slider 34 in the lifting adjustment plate 31 can be slid down until it touches the ground. Then, the extension plate 35 can be hammered with a tool to drive the positioning screw 36 into the ground for reinforcement. After the locking bolt 38 is threadedly connected to the locking threaded hole 37, it is pressed against the left and right sides of the lifting adjustment plate 31 to reinforce the positioning screw 36. At the same time, the cross-shaped slider 34 can be limited by sliding at both ends in the limiting groove 33 to maintain the stability of the up and down sliding and prevent the positioning screw 36 from falling off.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A deep foundation pit supporting and reinforcing device, comprising a supporting and reinforcing plate (1), characterized in that: Adjustment and fixing mechanisms (2) are provided on both the upper left and right sides of the rear end of the support reinforcement plate (1), and positioning mechanisms (3) are provided on both the lower left and right sides of the rear end of the support reinforcement plate (1). The adjustment and fixing mechanism (2) includes a T-shaped adjustment plate (21), which is fixedly installed on the rear side of the support reinforcement plate (1). Several through-holes (22) are evenly opened at the parallel position of the T-shaped adjustment plate (21) and the support reinforcement plate (1). A rotating rod (23) is provided on the front side of the T-shaped adjustment plate (21), and a support rod (29) is fixedly installed on the rear side of the rotating rod (23). Positioning side plates (24) are movably installed at both ends of the rotating rod (23). Limiting slides (25) are fixedly installed on the rear side of the opposite face of the two positioning side plates (24). The two limiting slides (25) are slidably connected to the rear side of the T-shaped adjusting plate (21) at a parallel position. Both positioning side plates (24) are provided with connecting holes (26) that pass through from left to right. The connecting holes (26) are aligned with one of the several adjusting through holes (22) from left to right. Long bolts (27) are provided through the inner rings of the adjusting through holes (22) and the two connecting holes (26). Nuts (28) are installed on the outer wall threads of the long bolts (27).

2. The deep foundation pit supporting and reinforcing device according to claim 1, characterized in that: The bottom of the T-shaped adjusting plate (21) is fixedly installed with an anti-detachment plate, and the bottom of the two limiting slides (25) overlaps with the top of the anti-detachment plate.

3. The deep foundation pit supporting and reinforcing device according to claim 1, characterized in that: A movable upright plate (291) is movably installed at one end of the support rod (29) away from the rotating rod (23). An mounting plate (292) is fixedly installed at the bottom of the movable upright plate (291). The mounting plate (292) has two through-holes (293). The two holes (293) are located on the left and right sides of the movable upright plate (291), respectively. A long fixing screw (294) is provided through the inner ring of the hole (293).

4. The deep foundation pit supporting and reinforcing device according to claim 1, characterized in that: The top of the support and reinforcement plate (1) is provided with a telescopic groove (11), and a telescopic plate (12) is slidably installed in the inner cavity of the telescopic groove (11). A limit plate (121) is fixedly installed on the top of the telescopic plate (12). Several threaded holes (122) are evenly provided on the left and right sides of the rear end of the telescopic plate (12). Several positioning holes (13) that penetrate into the inner cavity of the telescopic groove (11) are evenly provided on the left and right sides of the rear end of the support and reinforcement plate (1). The positioning holes (13) on the left and right sides are aligned with the threaded holes (122) on the left and right sides of the rear end of the telescopic plate (12). The uppermost two inner rings of the positioning holes (13) on the left and right sides are provided with fixing bolts (131). The front ends of the two fixing bolts (131) on the left and right sides are threadedly connected to the inner rings of two of the threaded holes (122) on the left and right sides.

5. The deep foundation pit supporting and reinforcing device according to claim 4, characterized in that: Magnetic dustproof plates (14) are movably installed on both the left and right sides of the rear end of the support and reinforcement plate (1). The support and reinforcement plate (1) is made of metal. The two magnetic dustproof plates (14) are attracted to each other on the rear side of the support and reinforcement plate (1). The two magnetic dustproof plates (14) on the left and right sides are respectively located on the rear side of several positioning holes (13) opened on the left and right sides of the rear end of the support and reinforcement plate (1), excluding the two at the top.

6. The deep foundation pit supporting and reinforcing device according to claim 1, characterized in that: The positioning mechanism (3) includes a lifting adjustment plate (31), which is fixedly connected to the rear side of the support reinforcement plate (1). A sliding groove (32) is provided on the rear side of the lifting adjustment plate (31). Limiting sliding grooves (33) that penetrate into the inner cavity of the sliding groove (32) are provided on both the left and right sides of the lifting adjustment plate (31). A cross-shaped slider (34) is slidably installed in the inner cavity of the sliding groove (32) and the two limiting sliding grooves (33). An extension plate (35) is fixedly installed on the front side of the cross-shaped slider (34). A positioning screw (36) is fixedly installed at the bottom of the extension plate (35).

7. The deep foundation pit supporting and reinforcing device according to claim 6, characterized in that: The left and right ends of the cross-shaped slider (34) are located inside the limiting slide groove (33) and are not on the same vertical line as the left and right sides of the lifting adjustment plate (31). Locking thread holes (37) are provided on both the left and right sides of the cross-shaped slider (34), and locking bolts (38) are installed on the inner ring threads of the locking thread holes (37).

Images