Foundation pit edge protection device

Abstract

The invention discloses a foundation pit edge protection device which comprises a plurality of I-shaped beams, and the I-shaped beams are connected end to end to form a rectangular frame beam and correspond to the top face of a foundation pit. The number of the stand columns is multiple, and the lower ends of the multiple stand columns are vertically and detachably connected to the upper flange plate of the I-shaped beam; the two sides of each protective net piece are detachably connected to the two opposite side walls of every two adjacent stand columns; the sliding block is connected to a panel on one side, facing the foundation pit, of the web of the I-shaped beam in a sliding manner; one end of the telescopic rod is hinged to the sliding block, and the other end of the telescopic rod can extend into the foundation pit; the pedal is detachably connected to the end, away from the sliding block, of the telescopic rod. While being used for edge protection of the foundation pit, the device has the crawling ladder function, can meet the requirement of an operator for the foundation pit under the mountain, and is simple in structure and high in function integration; and the detachable connection mode is convenient for turnover use.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction safety protection, and more particularly to a foundation pit edge protection device. Background Art

[0002] During the construction process, foundation pit excavation is usually carried out first. Temporary protection needs to be set up during foundation pit excavation to protect people from falling in. The general practice is to use steel pipes and fasteners to build a steel pipe frame. The overlapped steel pipe frame forms an isolation area to protect people coming and going around.

[0003] The Chinese invention patent with application publication number CN105888271A discloses a fence-type edge and stair guardrail, which includes a guardrail frame and a plurality of threaded steel bars arranged longitudinally in the guardrail frame, and a plurality of compression springs are arranged horizontally and parallelly between two adjacent threaded steel bars. A rectangular warning sign is provided in the middle of the guardrail frame, and a warning light is provided on the surface of the warning sign; columns are welded on both sides of the guardrail frame through support blocks, and two groups of connecting parts are provided on the outside of the columns, and the connecting parts are composed of a middle connecting block and circular connecting ends arranged on both sides of the connecting block, and a plurality of mounting holes are provided on the connecting ends; a detachable support is installed at the bottom end of the column; and a rain shield is provided at the top of the guardrail frame.

[0004] When installing the guardrail of the above scheme, it is necessary to first bury the anchor bolts in the ground, and then the anchor bolts pass through the support. A nut is set at one end of the anchor bolt extending out of the support. The support and the ground are connected as one, and the guardrail frame is connected. Workers need to use a ladder to go up and down, and the installation is complicated.

[0005] Therefore, how to provide an edge protection device that is easy to install, highly safe and highly functional is a problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0006] In view of this, the present invention provides a foundation pit edge protection device, which uses an I-beam as the basic beam of the protection device, has a certain deadweight, and meets the protection force requirements; workers stand on the pedal and use the telescopic operation of the telescopic rod to enter the foundation pit, which is more functional and adopts a bolt connection method, making installation and disassembly more convenient and quick.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A foundation pit edge protection device, comprising:

[0009] I-beams, wherein the number of the I-beams is multiple, and the multiple I-beams are connected end to end to form a rectangular frame beam corresponding to the top surface of the foundation pit;

[0010] There are multiple columns, and the lower ends of the multiple columns are vertically and detachably connected to the upper flange plate of the I-beam;

[0011] A protective mesh, the two sides of which are detachably connected to the opposite side walls of two adjacent columns;

[0012] A slider, the slider being slidably connected to a side panel of the I-beam web facing the foundation pit;

[0013] a telescopic rod, one end of which is hinged to the slider and the other end of which can be extended into the foundation pit;

[0014] A pedal is detachably connected to an end of the telescopic rod away from the slider.

[0015] The beneficial effect of the technical solution of the present invention is that the I-beam is used as the supporting foundation beam for the column and the protective mesh, which has strong stability and does not require additional drilling of holes in the bottom surface or the setting of embedded parts; the upper and lower foundation pits can be realized through the telescopic rod and the pedal, and no additional ladder is required, which does not affect the normal working environment of the foundation pit. The telescopic rod is hinged with the slider, and the telescopic rod can be rotated to a direction parallel to the web when not in use, which is convenient for storage and transportation.

[0016] Preferably, the device further comprises a slide rail fixed to the web of the I-beam, and the slider is slidably connected to the slide rail. The slide rail and the slider cooperate to enable the telescopic rod to slide relative to the web of the I-beam, allowing the position of the telescopic rod to be adjusted according to the pit environment. When multiple telescopic rods are required, the slider can be moved to one end of the slide rail to ensure sufficient space on the I-beam to accommodate the telescopic rods.

[0017] Preferably, the upper and lower ends of the slide rail are provided with a slide groove, and the slider is fixed with a protrusion adapted to the slide groove. The slider and the slide rail are slidably connected by the engagement of the protrusion and the slide groove, which has a stronger stability.

[0018] Preferably, a joint gap is defined on the surface of the slider away from the I-beam; a ball joint is provided at one end of the telescopic rod; and the ball joint is assembled within the joint gap. The ball joint enables the telescopic rod to rotate in multiple dimensions relative to the slider, providing greater flexibility.

[0019] Preferably, the device further includes a telescopic drive assembly, comprising a pulley, a micro winch, and a pull rope. The telescopic rod is a multi-stage coaxially nested hollow rod. The pulley is rotatably connected to the inner wall of the outermost hollow rod. The micro winch is fixed to the innermost end of the hollow rod opposite the pedal. One end of the pull rope is wound around the drum of the micro winch, and the other end passes around the pulley and is fixed to the innermost end of the hollow rod. The telescopic rod is driven to extend and retract by the micro winch and the pull rope. The telescopic drive assembly is located within the inner cavity of the hollow rod, resulting in a more compact structure.

[0020] Preferably, a rechargeable battery is fixed to the inner wall of the innermost hollow rod, and the rechargeable battery is electrically connected to the micro winch. The rechargeable battery is used as the power source of the micro winch.

[0021] Preferably, the upper flange plate of the I-beam is provided with bolt holes, a fastening plate is fixed to the lower end of the column, and the threaded end of the locking bolt passes through the fastening plate and the bolt hole in sequence and is tightened by a nut to achieve fastening of the column and the I-beam. The bolt connection method facilitates disassembly between the column and the I-beam.

[0022] Preferably, support plates are fixed to the upper and lower ends of the side walls of the column, and the protective mesh is bolted to the support plates. The bolt connection method facilitates the disassembly of the protective mesh and the column.

[0023] Preferably, connecting plates are fixed to both ends of the web or the end surfaces of the I-beam, and the connecting plates are provided with a plurality of bolt holes; two adjacent I-beams are bolted together via the connecting plates. The connecting plates are used to achieve docking between multiple I-beams, making installation and removal quick and easy.

[0024] It can be seen from the above technical solutions that compared with the prior art, the present invention provides a foundation pit edge protection device, which not only serves as a foundation pit edge protection device, but also has a ladder function, which can meet the needs of workers going down the foundation pit. It has a simple structure and strong functional integration; the detachable connection method is convenient for turnover and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0026] Figure 1 A front view of the protective device provided by the present invention;

[0027] Figure 2A side view of the protective device provided by the present invention;

[0028] Figure 3 A side view of the telescopic rod provided by the present invention after it is opened;

[0029] Figure 4 This is a schematic diagram of the cooperation between the slide rail and the slider provided by the present invention.

[0030] in,

[0031] 1-I-beam; 2-column; 3-protective mesh; 4-slide rail; 41-slide groove; 5-slider; 51-bump; 6-telescopic rod; 61-ball joint; 7-connecting plate; 8-pulley; 9-pull rope; 10-micro winch; 11-pedal. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Participate in the Figures 1 to 4 The embodiment of the present invention discloses a foundation pit edge protection device, comprising:

[0034] I-beam 1, there are multiple I-beams 1, multiple I-beams 1 are connected end to end to form a rectangular frame beam and correspond to the top surface of the foundation pit;

[0035] Columns 2, there are multiple columns 2, and the lower ends of the multiple columns 2 are vertically and detachably connected to the upper flange plate of the I-beam 1;

[0036] A protective mesh 3, both sides of which are detachably connected to the opposite side walls of two adjacent columns 2;

[0037] Slider 5, which is slidably connected to a panel on one side of the web of the I-beam 1 facing the foundation pit;

[0038] A telescopic rod 6, one end of which is hinged to the slider 5 and the other end of which can be extended into the foundation pit;

[0039] The pedal 11 is detachably connected to the end of the telescopic rod 6 away from the slider 5.

[0040] In this embodiment, multiple I-beams are connected end to end to form a rectangular frame beam. The size of the rectangular frame beam is slightly larger than the size of the foundation pit. The rectangular frame beam serves as the base beam for the columns and protective mesh. There is no need to set embedded parts on the ground or drill holes in the ground. The whole can be used as an assembled protective structure, which is easy and quick to install and disassemble, and can be used in a turnover manner. The I-beam has high strength and a long service life.

[0041] In this embodiment, connecting plates 7 are fixed to both ends of the web of the I-beam 1 or to the end surfaces of the beam, and a plurality of bolt holes are opened on the connecting plates 7 ; two adjacent I-beams 1 are bolted together through the connecting plates 7 .

[0042] I-beams in the same length direction can be extended by bolting the connecting plates on the webs; the rectangular corners can be connected by docking the connecting plates on the webs with the connecting plates at the ends of the I-beams. Multiple I-beams can be combined by bolting to form an overall stable rectangular frame beam with strong supporting ability and high bearing capacity. The height of the I-beam can be used as a water retaining barricade.

[0043] When workers need to go up and down the foundation pit, they rotate the telescopic rod to make it correspond to the inner cavity of the foundation pit. The workers stand on the pedal and use the telescopic operation of the telescopic rod to go up and down the foundation pit. There is no need to set up a ladder, which can ensure the working environment in the foundation pit. After the telescopic rod is used, the slider is slid to the end of the I-beam, and the telescopic rod is rotated to make it fit with the web of the I-beam and fixed with straps, which can facilitate the storage and transportation of the protective device.

[0044] In order to further optimize the above technical solution, a slide rail 4 is further included. The slide rail 4 is fixed on the web of the I-beam 1 , and the slider 5 is slidably connected to the slide rail 4 .

[0045] like Figure 1 and 2 The axis of the slide rail is arranged parallel to the length direction of the I-beam, the slide rail is welded to the web of the I-beam, and sliding is achieved through the cooperation of the slider and the slide rail.

[0046] In some other specific embodiments, the slide rail can be a linear rail, and the slider can be a slide table. The linear rail-slide table method is used for sliding, which has high control accuracy and good stability.

[0047] In some other specific embodiments, a slide groove 41 is formed at both the upper and lower ends of the slide rail 4 , and a protrusion 51 adapted to the slide groove 41 is fixed on the slider 5 .

[0048] like Figure 4 As shown, the cooperation between the protrusion and the slide groove enables the slider and the slide rail to engage with each other and be slidably connected, with good stability.

[0049] To further optimize the above technical solution, a limiter is fixed to the slider, which abuts against the slide rail to limit the slider's movement. The limiter can be attached to the slide rail to limit the slider's movement, preventing the slider from moving and causing workers to fall when entering or exiting the pit, thus ensuring safety during use.

[0050] In this embodiment, a joint gap is defined on the side of the slider 5 away from the I-beam 1. A ball joint 61 is provided at one end of the telescopic rod 6. The ball joint 61 is assembled within the joint gap, enabling the telescopic rod to slide in multiple dimensions relative to the slider.

[0051] During actual use, when the telescopic rod is not in use, it is rotated to a direction parallel to the slide rail, so that the axis of the telescopic rod is parallel to the length direction of the I-beam, and is tied to the I-beam through a strap to facilitate the turnover of the storage box protective device of the telescopic rod; when workers need to go up and down the foundation pit, the telescopic rod is rotated so that its telescopic end corresponds to the foundation pit, and the workers can go up and down the foundation pit by standing on the pedal, without the need to set up ladders and steps; the edge protection in the prior art only plays a protective role, and workers need to assist ladders and steps to go up and down the foundation pit, which requires expanding the size of the foundation pit to place ladders or steps, which is inconvenient for construction with limited excavation space; using this embodiment, the telescopic rod is used to enable workers to go up and down the foundation pit, and it is only necessary to excavate the foundation pit according to the construction, and there is no need to reserve a foundation pit space to prevent ladders or steps, which can reduce construction costs.

[0052] During the actual construction process, the telescopic rod needs to be tilted to correspond to the foundation pit to facilitate the construction workers to go up and down; the side walls of the foundation pit are generally excavated with a slope of 1:1.5. Therefore, in order to ensure the working performance of the telescopic rod, the inclination angle of the telescopic rod during use corresponds to the angle of the side wall of the foundation pit.

[0053] To further optimize the above technical solution, increase the telescopic rod's tilt angle, and prevent it from rotating about the ball joint during use, a clearance groove is defined on the outer wall of the telescopic rod's end near the slider. The end of the slider, away from the rail, snaps into the clearance groove. This clearance groove allows the telescopic rod to tilt along the foundation pit with sufficient tilt angle when tilted about the slider, without the slider affecting the rod's tilt. Furthermore, the slider snaps into the clearance groove, preventing the telescopic rod from rotating during extension and retraction.

[0054] In this embodiment, a telescopic drive assembly is also included, which includes a pulley 8, a micro winch 10 and a pull rope 9; the telescopic rod 6 is a multi-stage coaxially nested hollow rod body; the pulley 8 is rotatably connected to the inner wall of the outermost hollow rod body; the micro winch 10 is fixed to one end of the innermost hollow rod body opposite to the pedal 11; one end of the pull rope 9 is wrapped around the drum of the micro winch 10, and the other end passes around the pulley 8 and is fixed to the end of the innermost hollow rod body.

[0055] like Figure 3 As shown, the telescopic rod is a multi-stage telescopic rod that is coaxially slidably sleeved in sequence by multiple hollow rod bodies. A bracket is fixed to the inner wall of the outermost hollow rod body, and a pulley is rotatably connected to the bracket; a miniature winch is fixed to the end of the innermost hollow rod body, one end of the pull rope is fixed to the drum of the miniature winch, and the other end is wrapped around the pulley and fixed to the innermost hollow rod body. The extension and retraction of multiple hollow rod bodies are achieved through the winding operation of the miniature winch.

[0056] In order to further optimize the above technical solution, a clamping piece is provided between two adjacent hollow rods to prevent the inner hollow rod from completely sliding into the inner cavity of the adjacent outer hollow rod.

[0057] In order to further optimize the above technical solution, a rechargeable battery is fixed to the inner wall of the innermost hollow rod, and the rechargeable battery is electrically connected to the micro winch 10. A charging port for charging the rechargeable battery is opened on the innermost hollow rod body, and the rechargeable battery is used as the power source of the micro winch, avoiding the cumbersome wiring.

[0058] In order to further optimize the above technical solution, an infrared receiver is fixed on the micro winch, and an infrared remote control device is used to control the winding action of the micro winch to realize wireless extension and retraction control of the telescopic rod.

[0059] In order to further optimize the above technical solution and facilitate the installation and disassembly between the column and the I-beam, a bolt hole is opened on the upper flange plate of the I-beam 1, and a fastening plate is fixed to the lower end of the column 2. The threaded end of the locking bolt passes through the fastening plate and the bolt hole in turn and is locked by a nut to achieve the fastening of the column 2 and the I-beam 1.

[0060] In order to further optimize the above technical solution and facilitate the installation and removal of the protective mesh and the column, support plates are fixed to the upper and lower ends of the side walls of the column 2, and the protective mesh 3 is bolted to the support plates.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0062] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A foundation pit edge protection device, characterized in that: include: I-beams (1), the number of the I-beams (1) is multiple, and the multiple I-beams (1) are connected end to end to form a rectangular frame beam corresponding to the top surface of the foundation pit; A column (2), wherein the number of the columns (2) is multiple, and the lower ends of the multiple columns (2) are vertically and detachably connected to the upper flange plate of the I-beam (1); A protective mesh (3), both sides of which are detachably connected to opposite side walls of two adjacent columns (2); A slider (5), the slider (5) being slidably connected to a side panel of the web of the I-beam (1) facing the foundation pit; a telescopic rod (6), one end of which is hinged to the slider (5), and the other end of which can be extended into the foundation pit; A pedal (11) is detachably connected to an end of the telescopic rod (6) away from the slider (5).

2. A foundation pit edge protection device according to claim 1, characterized in that: It also includes a slide rail (4), which is fixed on the web of the I-beam (1), and the slider (5) is slidably connected to the slide rail (4).

3. The foundation pit edge protection device according to claim 2, characterized in that: The upper end and the lower end of the slide rail (4) are both provided with a slide groove (41), and a protrusion (51) adapted to the slide groove (41) is fixed on the slider (5).

4. The foundation pit edge protection device according to claim 1, characterized in that: A joint gap is provided on the surface of the slider (5) on one side away from the I-beam (1); a ball joint (61) is provided at one end of the telescopic rod (6); and the ball joint (61) is assembled in the joint gap.

5. The foundation pit edge protection device according to claim 4, characterized in that: The invention also includes a telescopic drive assembly, which includes a pulley (8), a micro winch (10) and a pull rope (9); the telescopic rod (6) is a multi-stage coaxially nested hollow rod body; the pulley (8) is rotatably connected to the inner wall of the outermost hollow rod body; the micro winch (10) is fixed to one end of the innermost hollow rod body relative to the pedal (11); one end of the pull rope (9) is wound around the drum of the micro winch (10), and the other end passes around the pulley (8) and is fixed to the end of the innermost hollow rod body.

6. The foundation pit edge protection device according to claim 5, characterized in that: A rechargeable battery is fixed to the inner wall of the innermost hollow rod, and the rechargeable battery is electrically connected to the micro winch (10).

7. The foundation pit edge protection device according to claim 1, characterized in that: The upper flange plate of the I-beam (1) is provided with a bolt hole, the lower end of the column (2) is fixed with a fastening plate, the threaded end of the locking bolt passes through the fastening plate and the bolt hole in sequence and is locked by a nut to achieve the fastening of the column (2) and the I-beam (1).

8. The foundation pit edge protection device according to claim 1, characterized in that: Support plates are fixed to the upper and lower ends of the side walls of the upright column (2), and the protective mesh (3) is bolted to the support plates.

9. The foundation pit edge protection device according to claim 1, characterized in that: Connecting plates (7) are fixed to both ends of the web of the I-beam (1) or to the end faces of its beam ends. The connecting plates (7) are provided with a plurality of bolt holes. Two adjacent I-beams (1) are bolted together via the connecting plates (7).

Images