Foundation pit protection device for highway construction

Abstract

The utility model discloses a highway construction foundation pit protection device which comprises a bottom end baffle and an additionally-installed baffle, a fixed connecting base is fixedly installed on the back face of the additionally-installed baffle, the fixed connecting base is rotationally connected with a connecting traction rod, a traction steel wire rope is fixedly installed at the end of the connecting traction rod, and the traction steel wire rope is fixedly connected with the additionally-installed baffle. One end of the traction steel wire rope is sleeved with a first tensioning hook rod, one end of the first tensioning hook rod is sleeved with an internal thread rotating cylinder in a threaded mode, a second tensioning hook rod is installed in the other end of the internal thread rotating cylinder in a threaded mode, and the end of the second tensioning hook rod is sleeved with a matched steel wire rope. The foundation pit slope is protected through the assembly type bottom end baffle and the additionally-installed baffle, so that the influence of the whole protection structure on the road foundation pit is small, meanwhile, laying of base materials can be limited to a certain degree, the base material laying effect is improved, adverse effects on compaction work of the base materials cannot be caused, and the service life of the road foundation pit is prolonged. And smooth pavement of the road foundation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of protective devices, in particular to a protective device for a highway construction foundation pit. Background Art

[0002] In existing technology, a foundation pit is excavated at the foundation's designed location, based on the base elevation and plan dimensions. According to the "Technical Specifications for Safety of Earthwork in Construction," when a foundation pit depth exceeds two meters, two sturdy protective railings must be installed around the perimeter to prevent pit slope collapse and other safety hazards.

[0003] After searching, the Chinese patent application number 202420193985.3 discloses a foundation pit protection device for highway bridge construction, including a main mechanism, a fixing mechanism, an auxiliary mechanism, and a supporting mechanism. The fixing mechanism is located inside the main mechanism, the auxiliary mechanism is located at the top of the main mechanism, and the supporting mechanism is located on one side of the main mechanism. The main mechanism includes a bottom protective plate, a side protective plate, a connecting pad, and a main connecting shaft. The bottom protective plate is fixedly installed on one side of the limiting counterweight block, the side protective plate is fixedly installed on one side of the bottom protective plate, the connecting pad is fixedly installed on one side of the side protective plate, and the main connecting shaft is fixedly installed on one side of the bottom protective plate; the fixing mechanism includes a first fixing screw, a second fixing screw, a first fixing thread, and a second fixing thread. The first fixing screw is fixedly installed inside the first fixing thread, and the second fixing screw is fixedly installed inside the second fixing thread. The auxiliary mechanism includes a limiting counterweight block, an induction head, an alarm device, a warning lamp holder, a warning light, and a screw protection block.

[0004] The above patent has the following shortcomings: the bottom protective plate of the device is completely in contact with the bottom surface of the foundation pit, and then supports the side protective plates to protect the slopes of the foundation pit. However, during the highway construction process, the bottom of the foundation pit needs to be paved with base materials many times and compacted repeatedly to ensure the quality of the highway. The protective device will occupy the position of the foundation pit, which will have a certain impact on the paving work of the highway foundation and is not conducive to the continuous progress of highway construction. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a highway construction foundation pit protection device.

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

[0007] The top end of the lifting link is connected with the lifting link of the lifting link, and the bottom end of the lifting link is connected with the lifting link of the lifting link.

[0008] As a further solution of the present invention: the outer wall of the tensioning hook rod 1 is threadedly sleeved with a matching nut 1, and the outer wall of the tensioning hook rod 2 is threadedly sleeved with a matching nut 2.

[0009] As a further solution of the present invention: a fixing nut is threadedly sleeved on the outer wall of the connecting hook rod, and a connecting steel wire rope is sleeved on one end of the connecting hook rod.

[0010] As a further solution of the present invention: a plurality of wire rope slots are equidistantly provided on the top of one end of the connecting traction rod, and one end of the connecting wire rope is sleeved into one of the wire rope slots.

[0011] As a further solution of the present invention: the bottom of the bottom baffle is fixedly connected to a matching bottom plate, and one side of the bottom baffle is fixedly connected to a gap sealing plate 1.

[0012] As a further solution of the present invention: both sides of the back side of the bottom baffle are fixedly connected with positioning inserts, and a fixed insertion rod is provided inside the positioning insert.

[0013] As a further solution of the present invention: both sides of the back side of the additional baffle are fixedly connected with mounting inserts, and one side of the back side of the additional baffle is fixedly connected with a second gap sealing plate.

[0014] As a further solution of the present invention: an additional connecting rod is provided inside the installation insert, and the bottom end of the additional connecting rod is fixedly installed on the top end of the fixed cutting rod.

[0015] Compared with the existing technology, the present invention provides a highway construction foundation pit protection device with the following beneficial effects:

[0016] The highway construction foundation pit protection device protects the foundation pit slope through the assembled bottom baffle and the additional baffle, so that the overall protection structure has less impact on the highway foundation pit. At the same time, it can limit the laying of the base material to a certain extent, improve the effect of the base material laying, and will not have an adverse effect on the compaction work of the base material, which facilitates the smooth progress of the highway foundation paving work. At the same time, the design of the connecting traction rod, rotating adjustment sleeve and other structures can effectively improve the protection ability of the protection device to the foundation pit slope, effectively resist the impact force caused by the collapse of the slope, and reduce the impact of the slope collapse.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall assembly of the utility model;

[0019] Figure 2 It is a partial cross-sectional structural diagram of the overall assembly of the utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0021] In the figure: 1. Bottom baffle; 2. Matching bottom plate; 3. Positioning insert; 4. Fixing insertion rod; 5. Gap sealing plate 1; 6. Rotating reinforcement seat; 7. Rotating connecting arm; 8. Rotating adjusting sleeve; 9. Connecting hook rod; 10. Fixing nut; 11. Connecting wire rope; 12. Installing baffle; 13. Installing insert; 14. Gap sealing plate 2; 15. Fixing connecting seat; 16. Connecting traction rod; 17. Wire rope slot; 18. Pulling wire rope; 19. Tensioning hook rod 1; 20. Matching nut 1; 21. Internal threaded rotating cylinder; 22. Matching nut 2; 23. Tensioning hook rod 2; 24. Matching wire rope; 25. Fixing ground pin; 26. Installing connecting rod. DETAILED DESCRIPTION

[0022] 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.

[0023] A highway construction foundation pit protection device, such as Figures 1 to 3 As shown, it includes: a bottom baffle 1 and an additional baffle 12. The bottom end of the bottom baffle 1 is in contact with the bottom pit wall of the highway foundation pit. The additional baffle 12 is arranged at the top end of the bottom baffle 1. The number of additional baffles 12 to be used is determined according to the depth of the foundation pit.

[0024] The bottom of the bottom baffle 1 is integrally formed with a matching bottom plate 2, and a gap sealing plate 5 is welded on one side of the bottom baffle 1. The gap between two adjacent bottom baffles 1 is blocked by the gap sealing plate 5 to prevent soil caused by the collapse of the side of the foundation pit from passing through the gap and entering the foundation pit.

[0025] Both sides of the back of the bottom baffle 1 are fixedly connected with positioning inserts 3, the inner cavity of the positioning inserts 3 passes through the bottom baffle 1, and a fixed cutting rod 4 is provided inside the positioning inserts 3. The bottom end of the fixed cutting rod 4 is inserted into the pit wall at the bottom end of the foundation pit, and the positioning inserts 3 are close to the foundation pit slope.

[0026] Mounting inserts 13 are welded on both sides of the back of the additional baffle 12, and the mounting inserts 13 are arranged above the positioning inserts 3, and a gap sealing plate 2 14 is integrally formed on one side of the back of the additional baffle 12. The gap sealing plate 2 14 is arranged on the side of the bottom baffle 1 where there is no gap sealing plate 1 5, and is used to seal the gap between the additional baffles 12.

[0027] An additional connecting rod 26 is provided inside the installation insert 13, and the bottom end of the additional connecting rod 26 is threadedly installed on the top end of the fixed insertion rod 4, and the lower part of the additional connecting rod 26 is provided inside the positioning insert 3, and the upper part is provided inside the installation insert 13, which is used to improve the stability between the bottom baffle 1 and the additional baffle 12, and resist the impact force caused by slope collapse.

[0028] A rotating reinforcement seat 6 is fixedly installed on the middle part of the back side of the bottom end baffle 1 by bolts, and the rotating reinforcement seat 6 is rotatably connected to a rotating connecting arm 7 through a pin, and the rotating connecting arm 7 is rotatably connected to a rotating adjustment sleeve 8 at one end away from the rotating reinforcement seat 6. A connecting hook rod 9 is installed on the internal thread of one end of the rotating adjustment sleeve 8, and a fixing nut 10 is threaded on the outer wall of the connecting hook rod 9, and a connecting wire rope 11 is sleeved on the end of the connecting hook rod 9 away from the rotating connecting arm 7.

[0029] A fixed connecting seat 15 is fixedly installed in the middle of the back side of the added baffle 12 by bolts, and the fixed connecting seat 15 is rotatably connected to a connecting traction rod 16. The end of the connecting traction rod 16 away from the fixed connecting seat 15 is fixedly installed with a traction wire rope 18 by a pin, and a plurality of wire rope slots 17 are equidistantly provided at the end of the top of the connecting traction rod 16 close to the traction wire rope 18, and one end of the connecting wire rope 11 is clamped in the wire rope slot 17.

[0030] One end of the traction wire rope 18 is sleeved with a tensioning hook rod 19, one end of the tensioning hook rod 19 is threadedly sleeved with an internal threaded rotating drum 21, and the outer wall of the tensioning hook rod 19 is threadedly sleeved with a matching nut 20.

[0031] The other end of the internal threaded rotating drum 21 is threadedly installed with a tensioning hook rod 23, the outer wall of the tensioning hook rod 23 is threadedly sleeved with a matching nut 22, and the end of the tensioning hook rod 23 away from the tensioning hook rod 23 is sleeved with a matching steel wire rope 24, and the other end of the matching steel wire rope 24 is sleeved with a fixed pin 25.

[0032] The tensioning hook rod 19, the tensioning hook rod 23 and the connecting hook rod 9 have the same structure, and are all welded by a hook and a threaded rod. The threads of the inner cavities at both ends of the internal threaded rotating cylinder 21 have opposite rotation directions, that is, when the internal threaded rotating cylinder 21 rotates clockwise, the tensioning hook rod 19 and the tensioning hook rod 2 23 approach each other. Conversely, when the internal threaded rotating cylinder 21 rotates counterclockwise, the tensioning hook rod 19 and the tensioning hook rod 2 23 move away from each other.

[0033] Working principle:

[0034] Please refer to Figures 1 to 3 , assemble the device as shown in the figure;

[0035] When the device is in use, first, according to the spacing of the positioning inserts 3 and the width of the bottom baffle 1, multiple groups of fixed cutting rods 4 are installed on the bottom pit wall of the highway foundation pit, and then the bottom baffle 1 is installed on a group of fixed cutting rods 4, and then the rotating reinforcement seat 6, the rotating connecting arm 7, the rotating adjustment sleeve 8 and the connecting hook rod 9 are installed on the back of the bottom baffle 1; then the additional connecting rod 26 is installed inside the positioning inserts 3, and the additional connecting rod 26 is fixed to the fixed cutting rod 4, and then the additional baffle 12 is installed on the additional connecting rod 26, and then the fixed connecting seat 15 and the connecting traction rod 16 are installed, and one end of the connecting wire rope 11 is sleeved on the outside of the connecting traction rod 16, and then according to the First install the traction wire rope 18, tensioning hook rod 19, internal threaded rotary drum 21, tensioning hook rod 23, then connect the matching wire rope 24 and the fixed ground pin 25, and fix the fixed ground pin 25 on the ground outside the foundation pit slope; then rotate the internal threaded rotary drum 21 clockwise to make the tensioning hook rod 19 and the tensioning hook rod 2 23 close to each other, tighten the traction wire rope 18 and the matching wire rope 24; then sleeve one end of the connecting wire rope 11 into the wire rope slot 17 closest to the traction wire rope 18, and then rotate the rotating adjusting sleeve 8 clockwise to make the connecting hook rod 9 close to the rotating connecting arm 7, and then tighten the connecting wire rope 11 to complete the assembly of the entire device.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highway construction foundation pit protection device, characterized in that: include: The bottom baffle (1) and the additional baffle (12) are fixedly installed with a fixed connection seat (15) on the back of the additional baffle (12), and the fixed connection seat (15) is rotatably connected with a connecting traction rod (16). The end of the connecting traction rod (16) is fixedly installed with a traction wire rope (18), one end of the traction wire rope (18) is sleeved with a tensioning hook rod (19), one end of the tensioning hook rod (19) is threadedly sleeved with an internal threaded rotating drum (21), and the other end of the internal threaded rotating drum (21) is internally threaded. A tensioning hook rod (23) is installed on the thread, and a matching steel wire rope (24) is sleeved on the end of the tensioning hook rod (23), and a fixed ground pin (25) is sleeved on the other end of the matching steel wire rope (24). A rotating reinforcement seat (6) is fixedly installed on the back of the bottom end baffle (1), and the rotating reinforcement seat (6) is rotatably connected to a rotating connecting arm (7). The end of the rotating connecting arm (7) is rotatably connected to a rotating adjustment sleeve (8), and a connecting hook rod (9) is installed on the internal thread of one end of the rotating adjustment sleeve (8).

2. A highway construction foundation pit protection device according to claim 1, characterized in that: The outer wall of the tensioning hook rod 1 (19) is threadedly sleeved with a matching nut 1 (20), and the outer wall of the tensioning hook rod 2 (23) is threadedly sleeved with a matching nut 2 (22).

3. A highway construction foundation pit protection device according to claim 1, characterized in that: The outer wall of the connecting hook rod (9) is threadedly sleeved with a fixing nut (10), and one end of the connecting hook rod (9) is sleeved with a connecting wire rope (11).

4. A highway construction foundation pit protection device according to claim 3, characterized in that: A plurality of steel wire rope slots (17) are equidistantly provided on the top of one end of the connecting traction rod (16), and one end of the connecting steel wire rope (11) is sleeved into one of the steel wire rope slots (17).

5. The highway construction foundation pit protection device according to claim 1, characterized in that: The bottom of the bottom baffle (1) is fixedly connected to a matching bottom plate (2), and one side of the bottom baffle (1) is fixedly connected to a gap sealing plate (5).

6. A highway construction foundation pit protection device according to claim 1, characterized in that: Both sides of the back side of the bottom end baffle (1) are fixedly connected with positioning inserts (3), and a fixed insertion rod (4) is provided inside the positioning insert (3).

7. The highway construction foundation pit protection device according to claim 1, characterized in that: Both sides of the back side of the additional baffle (12) are fixedly connected with mounting inserts (13), and one side of the back side of the additional baffle (12) is fixedly connected with a second gap sealing plate (14).

8. A highway construction foundation pit protection device according to claim 7, characterized in that: An additional connecting rod (26) is provided inside the installation insert (13), and the bottom end of the additional connecting rod (26) is fixedly installed on the top end of the fixed insertion rod (4).

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