A deep pit foundation safety fence for building construction is convenient to disassemble

Abstract

The utility model relates to building construction technical field especially is convenient to dismantle's building construction uses deep pit base safety guardrail, including two mutually parallel fixed column, fixed column one side fixedly connected with quick installation ring, quick installation ring one end outside fixedly connected with protection support, and the protection support lower extreme fixed mounting has the guardrail, the guardrail includes the pole body, and the lubricating groove is seted up in the pole body upper end inboard, and the lubricating groove inboard slidingly connected with the limit buffer board, and the limit buffer board upper end fixedly connected with telescopic balustrade, and the telescopic balustrade upper end fixedly connected with the crosspiece, and the crosspiece lower extreme fixedly connected with the limit rod, and the limit rod outside seted up with the limit groove, and the body upper end rotationally connected with the locking device, and the locking device includes the hollow block, in the utility model, the guardrail that sets up is adjusted length in the lubricating groove with the limit buffer board, and the adaptation different depth, different stage pit protection, and the blocking and warning personnel, material falling pit.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a safety guardrail for deep pit foundations in building construction that is easy to disassemble. Background Technology

[0002] The easily detachable safety guardrail for deep pit foundation construction is a safety protection device designed specifically for deep pit foundation operation scenarios in construction projects. Its core advantages are that it can be disassembled and assembled, is easy to install, and has high safety. It can effectively prevent safety accidents such as people falling and objects rolling down, while also meeting the needs of rapid turnover and reuse on the construction site.

[0003] The components are connected by snaps and quick-release bolts, which can be operated by a single person. A single set of guardrails can be installed in 6-meter sections, and disassembly takes less than 15 minutes, which is more than 80% more efficient than traditional welded guardrails.

[0004] When safety guardrails for deep pit foundations used in construction are installed in areas where the foundation soil has unstable mineral structures and large gaps in the rock strata, the soil bearing capacity is already uneven. Under the weight of the guardrail itself and external loads, uneven settlement of the foundation is likely to occur. When the guardrail tilts due to foundation settlement and uneven stress, its vertical height will decrease accordingly. The original 1.2-meter protection height that meets the safety standard may be reduced to 1 meter or even lower. This change not only weakens the physical blocking function of the guardrail, but also reduces people's visual and psychological awareness of danger. When the height is insufficient, some people may take chances and try to climb the tilted guardrail directly to cross the dangerous area. However, due to the shift in the center of gravity, the stability of the tilted structure is greatly reduced, and it is very easy to sway during the climbing process, causing the climber to lose balance and fall.

[0005] Therefore, a safety guardrail for deep pit foundations in building construction that is easy to disassemble is proposed to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a safety guardrail for deep pit foundations in construction that is easy to disassemble, in order to solve the problem that when the guardrail tilts due to foundation settlement or uneven stress, its vertical height will decrease accordingly, its stability will drop significantly, and it will be very easy to shake during climbing, causing the climber to lose balance and fall.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A safety guardrail for deep pit foundations in construction projects that is easy to disassemble includes two parallel fixed posts. A quick-installation ring is fixedly connected to one side of each fixed post, and a protective bracket is fixedly connected to the outer side of one end of the quick-installation ring. The guardrail is fixedly installed at the lower end of the protective bracket. The guardrail includes a pole body. A lubrication groove is formed on the inner side of the upper end of the pole body. A limit buffer plate is slidably connected to the inner side of the lubrication groove. A telescopic guardrail is fixedly connected to the upper end of the limit buffer plate. A crossbar is fixedly connected to the upper end of the telescopic guardrail. A limit rod is fixedly connected to the lower end of the crossbar. A limit groove is formed on the outer side of the limit rod. A locking device is rotatably connected to the upper end of the pole body. The locking device includes a hollow block. An arc-shaped groove is formed on the inner side of the hollow block. A fixed shaft is fixedly connected to the inner side of the arc-shaped groove. A return spring is fixedly connected to the outer side of the fixed shaft. A locking block is fixedly connected to the outer ring of the return spring.

[0009] As a further optimization of this utility model, the protective bracket is a rectangular frame structure, with both ends of the protective bracket connected to two fixed columns via quick-installation rings, and the lower end of the protective bracket vertically fixed to the guardrail with bolts.

[0010] As a further optimization of this utility model, the telescopic railings are multiple in number, evenly distributed at equal intervals, parallel to each other, and each telescopic railing corresponds to a limiting buffer plate.

[0011] As a further optimization of this utility model, the limiting buffer plate is a circular plate structure, the diameter of the limiting buffer plate is adapted to the inner diameter of the lubrication groove, the limiting buffer plate is welded and fixed to the lower end of the telescopic railing, and the number of telescopic railings is consistent with the number of railings.

[0012] As a further optimization of this utility model, the following features are provided: multiple limiting grooves are provided; the cross-sectional shape of each limiting groove is U-shaped; the limiting grooves are evenly and equidistantly distributed on the outside of the limiting rod; the spacing between the limiting grooves is cm; and the two sides of each limiting groove have an arc-shaped structure.

[0013] As a further optimization of this utility model, the locking device is installed on the outer side of the upper end of the corresponding rod body, one side of the arc groove is attached to the outer arc surface of one end of the limiting rod, one end of the fixed shaft vertically penetrates the hollow block, and the reset spring is sleeved on the fixed shaft.

[0014] As a further optimization of this utility model, two of each of the following are provided: the locking block, the fixed shaft, and the return spring are arranged symmetrically; the locking block is hook-shaped; and one end of each of the two locking blocks engages with the inner side of the limiting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this utility model, the protective railing is supported by fixed posts and protective brackets, and the locking device locks the structure of the railing itself to form continuous and closed edge protection. The telescopic railing can be adjusted in length by sliding in the lubrication groove with the help of the limiting buffer plate based on the actual protection height requirements of the foundation pit. After adjustment, it is fixed by locking the limiting groove again with the locking device. It is suitable for foundation pit protection of different depths and different stages, and prevents personnel and materials from falling into the foundation pit. 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 installation position of the limiting buffer plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure at point A in the figure of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the limiting rod of this utility model;

[0021] Figure 5 This is a schematic diagram of the installation position of the limiting groove in this utility model.

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the arc-shaped groove of this utility model.

[0023] In the diagram: 1. Fixed post; 2. Quick-install ring; 3. Protective bracket;

[0024] 4. Guardrail; 41. Post; 42. Lubrication groove; 43. Limiting buffer plate; 44. Horizontal bar; 45. Telescopic guardrail; 46. Limiting rod; 47. Limiting groove; 48. Locking device; 481. Hollow block; 482. Arc groove; 483. Fixed shaft; 484. Return spring; 485. Locking block. Detailed Implementation

[0025] 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.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Please see Figures 1-6 This utility model provides a technical solution:

[0028] A safety guardrail for deep pit foundations in construction projects that is easy to disassemble includes two parallel fixed posts 1. A quick-install ring 2 is fixedly connected to one side of each fixed post 1. A protective bracket 3 is fixedly connected to the outer side of one end of the quick-install ring 2. A guardrail 4 is fixedly installed at the lower end of the protective bracket 3. The guardrail 4 includes a pole 41. A lubrication groove 42 is formed on the inner side of the upper end of the pole 41. A limit buffer plate 43 is slidably connected to the inner side of the lubrication groove 42. A telescopic guardrail 45 is fixedly connected to the upper end of the limit buffer plate 43. A horizontal bar 44 is fixedly connected to the upper end of the retractable railing 45, and a limit rod 46 is fixedly connected to the lower end of the horizontal bar 44. A limit groove 47 is opened on the outer side of the limit rod 46. A locking device 48 is rotatably connected to the upper end of the rod body 41. The locking device 48 includes a hollow block 481. An arc-shaped groove 482 is opened on the inner side of the hollow block 481. A fixed shaft 483 is fixedly connected to the inner side of the arc-shaped groove 482. A return spring 484 is fixedly connected to the outer side of the fixed shaft 483. A locking block 485 is fixedly connected to the outer ring of the return spring 484.

[0029] As a further implementation of the above technical solution: two of each of the locking block 485, fixed shaft 483 and return spring 484 are provided. The locking block 485, fixed shaft 483 and return spring 484 are arranged symmetrically. The locking block 485 is hook-shaped. One end of the two locking blocks 485 is engaged with the inner side of the limiting groove 47. The symmetrical structure makes the force on both sides of the limiting rod 46 even, preventing the guardrail 4 from tilting or deforming due to locking on one side, and extending the service life of the rod 41 and the limiting rod 46. Workers can lock and unlock by simply rotating.

[0030] As a further implementation of the above technical solution: there are multiple telescopic guardrails 45, which are evenly distributed at equal intervals and are parallel to each other. Each telescopic guardrail 45 corresponds to a limiting buffer plate 43, eliminating gaps in the edge protection of the foundation pit, preventing personnel or materials from falling through the gaps in the guardrails, and improving safety redundancy.

[0031] As a further implementation of the above technical solution: the limiting buffer plate 43 is a circular plate structure, the diameter of the limiting buffer plate 43 is adapted to the inner diameter of the lubrication groove 42, the limiting buffer plate 43 is welded and fixed to the lower end of the telescopic railing 45, the number of telescopic railings 45 is the same as the number of bars 41, the circular plate structure is adapted to the inner diameter of the lubrication groove 42, there is no jamming when sliding, ensuring that the telescopic railing 45 is adjusted and buffered smoothly when subjected to impact, and preventing the guardrail 4 from breaking due to instantaneous force;

[0032] As a further implementation of the above technical solution: multiple limiting grooves 47 are provided, the cross-sectional shape of the limiting grooves 47 is U-shaped, the limiting grooves 47 are evenly and equidistantly distributed on the outside of the limiting rod 46, the spacing between the limiting grooves 47 is 5cm, and the two sides of the limiting grooves 47 are arc-shaped structures, so that the height adjustment of the telescopic railing 45 can be controlled in stages, and workers can accurately adapt to the protection needs of different foundation pit depths.

[0033] As a further implementation of the above technical solution: the protective bracket 3 is a rectangular frame structure. The two ends of the protective bracket 3 are respectively connected to two fixed columns 1 through quick-install rings 2. The lower end of the protective bracket 3 is vertically fixed to the guardrail 4 with bolts. The rectangular frame makes the protective bracket 3 more evenly stressed. With the connection of quick-install rings 2, the overall anti-overturning ability of the guardrail 4 is greatly improved, and the failure of the pit edge protection due to bracket deformation is avoided.

[0034] As a further implementation of the above technical solution: the locking device 48 is installed on the outer side of the upper end of the corresponding rod 41, one side of the arc groove 482 is attached to the outer arc surface of one end of the limiting rod 46, one end of the fixed shaft 483 vertically penetrates the hollow block 481, the return spring 484 is sleeved on the fixed shaft 483, and the fixed shaft 483 vertically penetrates the hollow block 481, so that the elastic force of the return spring 484 is evenly applied to the locking block 485, ensuring that the locking block 485 is stably locked into and ejected from the limiting groove 47, and improving the durability of the locking device 48.

[0035] Workflow: First, place two fixed posts 1 parallel to each other and corresponding to the edge of the foundation pit. Place the quick-installation ring 2 on the corresponding side of the fixed post 1. Secure the quick-installation ring 2 to the fixed post 1 using welding or pre-installed connectors. Next, align the two ends of the protective bracket 3 with the connection points of the quick-installation ring 2. Utilize the convenient connection structure of the quick-installation ring 2 to connect the protective bracket 3 to the fixed post 1, forming a rectangular frame support structure spanning the edge of the foundation pit. Secure the lower end of the guardrail 4 vertically to the protective bracket 3 using bolts, making the guardrail 4 stand vertically, thus initially forming a protective barrier at the edge of the foundation pit. Depending on the actual protection requirements of the foundation pit, when it is necessary to adjust the height of the guardrail 4 or disassemble the guardrail 4, apply external force to the locking block 485 of the locking device 48. This will rotate the locking device 48, causing the locking block 485 to overcome the elastic force of the return spring 484 and disengage from the inner side of the limiting groove 47, releasing the lock on the limiting rod 46. At this time, the telescopic railing 45 of the guardrail 4 can freely slide to adjust its height. When the telescopic railing 45 of the guardrail 4 is adjusted... When the lower limit bar 46 of the crossbar 44 is inserted into the upper area of ​​the bar body 41 at the appropriate height, the locking device 48 is rotated again to align with the limit groove 47. Due to the elastic force of the return spring 484, the locking block 485 will automatically move towards the limit bar 46. Finally, one end of the locking block 485 is engaged inside the limit groove 47 of the limit bar 46. The mechanical engagement structure fixes the position of the limit bar 46, thereby locking the height of the guardrail 4 and preventing it from sliding and changing the protection height. The telescopic guardrail 45 can be adjusted based on the actual protection height of the pit. To meet the requirements, the length is adjusted by sliding the limit buffer plate 43 in the lubrication groove 42. After adjustment, the limit groove 47 is locked again by the locking device 48. It is suitable for foundation pit protection of different depths and stages, preventing personnel and materials from falling into the foundation pit. When the project ends or the guardrail 4 needs to be moved to another site, first remove the bolts between the guardrail 4 and the protective bracket 3, and remove the guardrail 4 as a whole from the protective bracket 3. Then, operate the locking device 48 to release the lock and compress the telescopic guardrail 45 back into the pole body 41 to reduce the overall volume of the guardrail 4.

[0036] 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 guardrail for deep pit foundations in building construction that is easy to disassemble, comprising two parallel fixed posts (1), characterized in that: A quick-install ring (2) is fixedly connected to one side of the fixed column (1), and a protective bracket (3) is fixedly connected to the outer side of one end of the quick-install ring (2). A protective railing (4) is fixedly installed at the lower end of the protective bracket (3). The guardrail (4) includes a pole (41), a lubrication groove (42) is provided on the inner side of the upper end of the pole (41), a limit buffer plate (43) is slidably connected to the inner side of the lubrication groove (42), a telescopic railing (45) is fixedly connected to the upper end of the limit buffer plate (43), a crossbar (44) is fixedly connected to the upper end of the telescopic railing (45), a limit rod (46) is fixedly connected to the lower end of the crossbar (44), a limit groove (47) is provided on the outer side of the limit rod (46), a locking device (48) is rotatably connected to the upper end of the pole (41), the locking device (48) includes a hollow block (481), an arc groove (482) is provided on the inner side of the hollow block (481), a fixed shaft (483) is fixedly connected to the inner side of the arc groove (482), a return spring (484) is fixedly connected to the outer side of the fixed shaft (483), and a locking block (485) is fixedly connected to the outer ring of the return spring (484).

2. The easily disassembled safety guardrail for deep pit foundations in building construction according to claim 1, characterized in that: The protective bracket (3) is a rectangular frame structure. The two ends of the protective bracket (3) are connected to two fixed columns (1) through quick-install rings (2). The lower end of the protective bracket (3) is vertically fixed to the guardrail (4) with bolts.

3. The easily disassembled safety guardrail for deep pit foundations in building construction according to claim 1, characterized in that: There are multiple telescopic railings (45), which are evenly distributed at equal intervals and are parallel to each other. Each telescopic railing (45) corresponds to a limiting buffer plate (43).

4. The easily disassembled safety guardrail for deep pit foundations in building construction according to claim 1, characterized in that: The limiting buffer plate (43) is a circular plate structure. The diameter of the limiting buffer plate (43) is adapted to the inner diameter of the lubrication groove (42). The limiting buffer plate (43) is welded and fixed to the lower end of the telescopic railing (45). The number of telescopic railings (45) is the same as the number of poles (41).

5. A safety guardrail for deep pit foundations in building construction that is easy to disassemble, as described in claim 1, characterized in that: The number of limiting grooves (47) is multiple. The cross-sectional shape of the limiting grooves (47) is U-shaped. The limiting grooves (47) are evenly and equidistantly distributed on the outside of the limiting rod (46). The distance between the limiting grooves (47) is 5cm. The two sides of the limiting grooves (47) are arc-shaped structures.

6. A safety guardrail for deep pit foundations in building construction that is easy to disassemble, as described in claim 1, characterized in that: The locking device (48) is installed on the outer side of the upper end of the corresponding rod (41), one side of the arc groove (482) is attached to the outer arc surface of one end of the limiting rod (46), one end of the fixed shaft (483) vertically penetrates the hollow block (481), and the reset spring (484) is sleeved on the fixed shaft (483).

7. A safety guardrail for deep pit foundations in building construction that is easy to disassemble, as described in claim 1, characterized in that: Two of each of the following are provided: the locking block (485), the fixed shaft (483), and the return spring (484). The locking block (485), the fixed shaft (483), and the return spring (484) are arranged symmetrically. The locking block (485) is hook-shaped, and one end of the two locking blocks (485) is engaged inside the limiting groove (47).

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