A safety protection device for repairing a foundation pit

Abstract

The utility model discloses a safety device for maintenance foundation pit, and its technical scheme main points are: including base, the top surface of base is provided with the protection frame, and the inside of protection frame is provided with the protective net, install component, install component sets up inside protection frame, is used to install the protective net, and install component includes the limiting slot, and the top surface of protection frame is opened in the limiting slot, and the protective net is movably sleeved in the inside of limiting slot, and the top surface of protection frame is opened with two rotary grooves, and the inside of rotary groove is connected with the support rod, and the outer wall of support rod movably sleeved with the limiting plate, and the operation personnel install protection frame on the base, and then the protective net is clamped into the inside of protection frame, thereby assembling the protection device and protecting the foundation pit, when the protective net is damaged, the operation personnel can rotate the limiting plate, and the limiting of limiting plate to the protective net is relieved, and it is convenient for the operation personnel to dismantle and replace the protective net, and the practicality is improved.

Description

Technical Field

[0001] This utility model relates to the field of deep foundation pit construction technology, specifically to a safety protection device for repairing foundation pits. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the conditions of nearby buildings. Waterproofing and drainage work should be carried out. For shallow excavations, slope protection can be used to stabilize the soil slope. The slope should be determined according to relevant construction regulations. For deeper excavations or those near buildings, excavation pit wall support methods, shotcrete wall protection methods, and even large excavation pits can use methods such as underground continuous walls and interlocking column-type bored piles to prevent the outer soil layer from collapsing. For excavations that have no impact on nearby buildings, well point method can be used to lower the groundwater level, and open excavation with slope protection can be adopted. In cold regions, natural cold air freezing method can be used for excavation, etc.

[0003] For example, Chinese patent CN220790692U discloses a safety protection device for deep foundation pit operations. When the foundation pit is surrounded by soft, uneven soil, the protruding column can be moved to the horizontal position of the L-shaped limiting groove, allowing the pointed cone to extend from the column. Then, the column of the previous safety protection device is inserted into the sleeve of the next safety protection device, connecting them as a single unit. Finally, the pointed cone is inserted into the soil and fixed in place. The appropriate number of safety protection devices can be arranged on each side of the foundation pit according to its size and shape. This device offers advantages such as adaptability to the shape of the foundation pit and ease of assembly and disassembly. Furthermore, the safety protection devices on each side of the foundation pit can be connected as a whole, greatly improving impact resistance. However, when the foundation pit is surrounded by hardened cement ground, the cement surface is generally flat, and the pointed cone is difficult to... Insert the device into the ground. First, move the protruding column to the top of the vertical part of the L-shaped limiting groove, so that the pointed tip of the movable rod retracts into the column to prevent the pointed tip from injuring personnel. Then, insert the column of the previous safety protection device into the sleeve of the next safety protection device to connect the two into one. Then, invert the entire safety protection device so that the support is placed flat on the cement ground. Of course, according to the size and shape of the foundation pit, the corresponding number of safety protection devices can be arranged on each side of the foundation pit. It has the advantages of being able to protect according to the shape of the foundation pit and being easy to install and disassemble. At the same time, the safety protection devices on each side of the foundation pit can be connected into a whole, which greatly improves the impact resistance. However, in this scheme, when the protective net is damaged and needs to be replaced, it is necessary to disassemble the associated protective components, which is inconvenient for replacing the protective net. Therefore, we propose a safety protection device for foundation pit maintenance. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a safety protection device for maintenance pits, so as to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A safety protection device for maintenance pits includes: a base, a protective frame on the top surface of the base, and a protective net inside the protective frame; and an installation component inside the protective frame for installing the protective net. The installation component includes a limiting groove on the top surface of the protective frame, the protective net being movably fitted inside the limiting groove, and two rotating grooves on the top surface of the protective frame. A support rod is connected inside the rotating groove, and a limiting plate is movably fitted onto the outer wall of the support rod.

[0007] By adopting the above technical solution and setting up installation components, during installation, workers can install the protective frame on the base and then insert the protective net into the protective frame to assemble the protective device for the foundation pit. When the protective net is damaged, workers can rotate the limiting plate to release the limiting plate from restricting the protective net, which facilitates the disassembly and replacement of the protective net and improves its practicality.

[0008] Preferably, the mounting assembly further includes: a return spring connected between the support rod and the limiting plate; and two protective covers disposed on the top surface of the protective frame, wherein a hinge is connected to the top surface of the protective frame, and one end of the hinge is connected to one side of the protective cover.

[0009] By adopting the above technical solution and setting a reset spring, during installation, the operator can flip the protective cover, which pushes the limit plate upward to move and compress the reset spring. After the operator removes or installs the protective net, the limit plate is released, and the reaction force generated by the reset spring is used to fix and limit the protective net, thereby improving the stability of the protective net.

[0010] Preferably, the top surface of the base is provided with a slot, the bottom surface of the protective frame is connected with a block, the block and the slot are movably fitted together, two fixing slots are provided on one side of the base, and connecting bolts are threaded into the fixing slots, two positioning holes are provided on one side of the block, the positions of the positioning holes correspond to the positions of the fixing slots, and the connecting bolts extend through the positioning holes into the interior of the fixing slots.

[0011] By adopting the above technical solution and setting a locking block, during installation, the operator can push the locking block to make it snap into the slot, assembling the base and the protective frame together. Then, by rotating the connecting bolts, the locking block is fixed inside the slot, ensuring the stability of the protective frame. This allows the protective device to be disassembled and transported, improving its practicality.

[0012] Preferably, the top surface of the base has two fixing holes, and fixing bolts are movably connected inside the fixing holes.

[0013] By adopting the above technical solution and setting fixing bolts, when it is necessary to surround the foundation pit, the workers can insert the fixing bolts into the ground around the foundation pit to fix the base to the foundation pit, thereby preventing workers from falling into the foundation pit and improving safety.

[0014] Preferably, a plurality of mounting slots are provided on one side of the protective frame, and a slogan board is movably connected inside the mounting slots.

[0015] By adopting the above technical solution and setting up signboards, operators can mark information about the maintenance pit and the equipment inside the pit on the signboards during use, preventing other workers from falling into the pit and improving safety.

[0016] Preferably, two warning slots are provided on one side of the protective frame, and reflective stickers are connected inside the warning slots.

[0017] By adopting the above technical solution and setting reflective stickers, the reflective stickers can reflect nighttime optics, making it easier for passersby to see the protective device and preventing them from colliding with the protective frame, thus further improving safety.

[0018] In summary, the present invention has the following main advantages:

[0019] By setting up installation components, during installation, workers install the protective frame on the base and then insert the protective net into the protective frame to assemble the protective device for the foundation pit. When the protective net is damaged, workers can rotate the limiting plate to release the limiting plate from restricting the protective net, which facilitates the disassembly and replacement of the protective net and improves its practicality.

[0020] By incorporating a reset spring, during installation, workers can flip the protective cover, which pushes the limit plate upward to compress the reset spring. After the workers remove or install the protective net, they can release the limit plate, allowing the reset spring to return and generate a reaction force that fixes the protective net in place, thus improving its stability.

[0021] By incorporating locking blocks, during installation, workers can push the blocks to engage them in the slots, assembling the base and protective frame together. Rotating the connecting bolts then secures the blocks in the slots, ensuring the stability of the protective frame. This allows the protective device to be disassembled and transported, enhancing its practicality. Furthermore, by installing signboards, operators can mark information about the maintenance pit and its equipment, preventing other workers from falling in and improving safety. Finally, by using reflective stickers, nighttime visibility is enhanced, making the protective device easier for passersby to see and preventing collisions with the frame, further improving safety. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the protective frame structure of this utility model;

[0025] Figure 4 This is a cross-sectional schematic diagram of the protective frame of this utility model;

[0026] Reference numerals: 1. Base; 2. Protective frame; 3. Protective net; 4. Limiting groove; 5. Rotating groove; 6. Support rod; 7. Limiting plate; 8. Return spring; 9. Protective cover; 10. Slot; 11. Slot; 12. Fixing groove; 13. Connecting bolt; 14. Positioning hole; 15. Fixing hole; 16. Fixing bolt; 17. Mounting groove; 18. Slogan board; 19. Warning groove; 20. Reflective sticker. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] refer to Figures 1-4A safety protection device for maintenance pits includes a base 1, a protective frame 2 on the top surface of the base 1, a protective net 3 inside the protective frame 2, and an installation assembly inside the protective frame 2 for installing the protective net 3. The installation assembly includes a limiting groove 4 on the top surface of the protective frame 2, the protective net 3 being movably fitted inside the limiting groove 4, and two rotating grooves 5 on the top surface of the protective frame 2. A support rod 6 is connected inside the rotating grooves 5, and a limiting plate 7 is movably fitted onto the outer wall of the support rod 6. By using the installation assembly, during installation, workers install the protective frame 2 onto the base 1 and then insert the protective net 3 into the protective frame 2 to assemble the protective device for pit protection. If the protective net 3 is damaged, the workers... The limiting plate 7 can be rotated to release its restriction on the protective net 3, facilitating the disassembly and replacement of the protective net 3 by operators and improving its practicality. The installation assembly also includes a return spring 8, which is connected between the support rod 6 and the limiting plate 7. Two protective covers 9 are provided on the top surface of the protective frame 2, and a hinge is connected to the top surface of the protective frame 2. One end of the hinge is connected to one side of the protective cover 9. By setting the return spring 8, during installation, operators can flip the protective cover 9, which pushes the limiting plate 7 upward to move it and compress the return spring 8. After the operators disassemble or install the protective net 3, they can release the limiting plate 7, and the reaction force generated by the return spring 8 will fix and limit the protective net 3, improving the stability of the protective net 3 in use.

[0029] Reference Figures 1-4The base 1 has a slot 10 on its top surface, and a block 11 is connected to the bottom surface of the protective frame 2. The block 11 is movably fitted with the slot 10. Two fixing slots 12 are provided on one side of the base 1, and connecting bolts 13 are threaded into the fixing slots 12. Two positioning holes 14 are provided on one side of the block 11, and the positions of the positioning holes 14 correspond to the positions of the fixing slots 12. The connecting bolts 13 extend through the positioning holes 14 into the fixing slots 12. By setting the block 11, during installation, the operator can push the block 11 to engage it with the slot 10, assembling the base 1 and the protective frame 2 together. Then, by rotating the connecting bolts 13, the block 11 is fixed inside the slot 10, ensuring the stability of the protective frame 2 and facilitating the transportation and installation of the protective device. Two fixing holes 15 are provided on the top surface of the base 1, and fixing bolts 15 are movably connected inside the fixing holes 15. Bolts 16 are used to fix the base 1 to the pit. When the pit needs to be surrounded, workers can insert the bolts 16 into the ground around the pit to fix the base 1 to the pit, thus preventing workers from falling into the pit and improving safety. Multiple mounting slots 17 are provided on one side of the protective frame 2. Slogan boards 18 are movably connected inside the mounting slots 17. By setting up the slogan boards 18, workers can mark information about the pit maintenance and the equipment inside the pit, preventing other workers from falling into the pit and improving safety. Two warning slots 19 are provided on one side of the protective frame 2. Reflective stickers 20 are connected inside the warning slots 19. By setting up the reflective stickers 20, nighttime light can be reflected, making the protective device visible to passing personnel and preventing collisions with the protective frame 2, further improving safety.

[0030] Working principle: Please refer to Figures 1-4As shown, by setting up the installation components, during installation, the operator installs the protective frame 2 on the base 1 and then inserts the protective net 3 into the protective frame 2 to assemble the protective device for the foundation pit. When the protective net 3 is damaged, the operator can rotate the limiting plate 7 to release the limitation plate 7 on the protective net 3, facilitating the operator's disassembly and replacement of the protective net 3 and improving practicality. By setting up the reset spring 8, during installation, the operator can flip the protective cover 9, which pushes the limiting plate 7 upward to move it and compress the reset spring 8. When the operator removes or installs the protective net 3, the limiting plate 7 is released, and the reaction force generated by the reset spring 8 fixes the protective net 3, improving the stability of the protective net 3. By setting up the locking block 11, during installation, the operator can push the locking block 11 to lock it into the slot. Inside the slot 10, the base 1 and the protective frame 2 are assembled together. Then, by rotating the connecting bolt 13, the locking block 11 is fixed inside the slot 10, ensuring the stability of the protective frame 2. This allows the protective device to be disassembled and transported, improving its practicality. By setting the fixing bolt 16, when it is necessary to surround the foundation pit, the workers can insert the fixing bolt 16 into the ground around the foundation pit to fix the base 1 to the foundation pit, thus preventing workers from falling into the foundation pit. By setting the signboard 18, when in use, the workers can mark the information about the foundation pit maintenance and the equipment inside the foundation pit on the signboard 18 to prevent other workers from falling into the foundation pit, thus improving safety. By setting the reflective sticker 20, at night, the reflective sticker 20 can reflect nighttime optics, making it easier for passing personnel to see the protective device and avoiding collisions between passing personnel and the protective frame 2, further improving safety.

[0031] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for maintenance pits, characterized in that, include: A base (1) is provided with a protective frame (2) on its top surface, and a protective net (3) is provided inside the protective frame (2); The installation component is disposed inside the protective frame (2) and is used to install the protective net (3). The installation component includes a limiting groove (4) which is opened on the top surface of the protective frame (2). The protective net (3) is movably fitted inside the limiting groove (4). The top surface of the protective frame (2) has two rotating grooves (5). A support rod (6) is connected inside the rotating groove (5). A limiting plate (7) is movably fitted on the outer wall of the support rod (6).

2. The safety protection device for maintenance pits according to claim 1, characterized in that, The installation components also include: A return spring (8) is connected between the support rod (6) and the limiting plate (7); Two protective covers (9) are provided on the top surface of the protective frame (2). The top surface of the protective frame (2) is connected to a hinge, one end of which is connected to one side of the protective cover (9).

3. The safety protection device for maintenance pits according to claim 1, characterized in that, The base (1) has a slot (10) on its top surface and a block (11) on its bottom surface. The block (11) and the slot (10) are movably fitted together. The base (1) has two fixing slots (12) on one side. The fixing slots (12) are threaded with connecting bolts (13). The block (11) has two positioning holes (14) on one side. The positioning holes (14) are positioned corresponding to the fixing slots (12). The connecting bolts (13) pass through the positioning holes (14) and extend into the fixing slots (12).

4. A safety protection device for maintenance pits according to claim 1, characterized in that, The top surface of the base (1) has two fixing holes (15), and fixing bolts (16) are movably connected inside the fixing holes (15).

5. A safety protection device for maintenance pits according to claim 1, characterized in that, The protective frame (2) has multiple mounting slots (17) on one side, and a slogan board (18) is movably connected inside the mounting slot (17).

6. A safety protection device for maintenance pits according to claim 1, characterized in that, Two warning slots (19) are provided on one side of the protective frame (2), and reflective stickers (20) are connected inside the warning slots (19).

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