A geotechnical engineering foundation pit protection device

Abstract

This utility model discloses a geotechnical engineering foundation pit protection device, including two sets of parallel frame beams, with a protective mesh panel detachably installed between the two sets of frame beams. Multiple sets of ground spikes are installed at the bottom of the bottom frame beam. A support sleeve is rotatably installed on the top frame beam, and a telescopic support rod is slidably installed inside the support sleeve. This utility model relates to the field of geotechnical engineering technology. This geotechnical engineering foundation pit protection device, by setting a retractable tarpaulin, allows the tarpaulin to be extended during use to completely cover the foundation pit, achieving the purpose of protection. When not in use, the tarpaulin can be completely retracted, leaving the top of the foundation pit fully exposed (for convenient temporary surveys, etc.). Furthermore, a liftable cylinder can be used to raise the tarpaulin from the middle, forming a roof-like structure. In this way, rainwater and falling rocks can be automatically discharged through the inclined surfaces on both sides, preventing accumulation and collapse of the tarpaulin.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering technology, specifically to a geotechnical engineering foundation pit protection device. Background Technology

[0002] Geotechnical engineering focuses on solving problems related to rock and soil masses, including foundations, slopes, and underground engineering. An excavation pit is a pit dug at the designed foundation location according to the base elevation and foundation dimensions. Protective devices can effectively protect the area around the excavation pit, reducing safety hazards for pedestrians.

[0003] For example, the geotechnical engineering foundation pit protection device disclosed in Chinese authorized patent CN 220013689 U can adjust the length of the tarpaulin as needed to provide sufficient protection area, and can avoid the vibration generated during construction from causing the connection to loosen.

[0004] The inventor believes that the tarpaulin used to shield against rain and falling rocks has significant problems in actual use. It is obvious that although the length of the tarpaulin can be adjusted in the horizontal direction, the tarpaulin is always laid horizontally. Once rain or falling rocks fall on it, the horizontally laid tarpaulin has difficulty draining the rain or falling rocks. Once they accumulate, they will crush the tarpaulin. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, this utility model provides a geotechnical engineering foundation pit protection device, which solves the problem that the existing foundation pit protection tarpaulin is easily damaged due to the difficulty of drainage and falling rocks.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a geotechnical engineering foundation pit protection device, comprising two sets of parallel frame beams arranged at the top and bottom, with a protective netting detachably installed between the two sets of frame beams, wherein multiple sets of ground spikes are installed at the bottom of the bottom frame beam.

[0009] A strut sleeve is rotatably mounted on the top frame beam, and a telescopic strut is slidably mounted inside the strut sleeve. The struts on the front and rear sides are connected to each other by a connecting shaft.

[0010] A liftable cylinder is embedded in the middle of the frame beam, and the free end of the cylinder is fixedly connected to the bottom of the connecting shaft.

[0011] Rotatable winding shafts are installed on both the front and rear sides of the top frame beam. The winding shafts are driven by an external servo motor. Multiple wire clamps are fixed on the side of the support sleeve, and wire clamps have wire grooves.

[0012] Two sets of winding shafts are wound with a traction rope, which passes through the cable clamp. A tie is fixedly connected to the inside of the traction rope, and a tarpaulin is connected to the end of the tie away from the traction rope.

[0013] As a further preferred embodiment, the groove is an arc-shaped notch groove, wherein the traction rope is completely located inside the arc-shaped opening, the tie passes through the notch and connects to the traction rope inside the arc-shaped opening, and the diameter of the traction rope is greater than the opening width of the notch.

[0014] As a further preferred embodiment, limit discs are installed at both ends of the winding shaft, and the limit discs are used to limit the position of the traction rope.

[0015] As a further preferred embodiment, a column is detachably installed in the middle of the frame beam, and the fixed end of the cylinder is embedded inside the column.

[0016] As a further preferred embodiment, a supporting protrusion is installed on the rotating seat at the bottom of the strut sleeve, and the length of the tarpaulin is greater than the length of the frame beam.

[0017] (III) Beneficial Effects

[0018] This utility model provides a foundation pit protection device for geotechnical engineering. It has the following beneficial effects:

[0019] This geotechnical engineering foundation pit protection device uses a retractable tarpaulin. When in use, the tarpaulin can be extended to completely cover the foundation pit, providing protection. When not in use, the tarpaulin can be completely retracted, leaving the top of the foundation pit fully exposed (for convenient temporary surveys, etc.). Furthermore, a liftable cylinder can raise the tarpaulin from the middle to form a roof-like structure. In this way, rainwater and falling rocks can be automatically discharged through the inclined surfaces on both sides, preventing them from accumulating and collapsing the tarpaulin. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a partial structural diagram of the present invention;

[0022] Figure 3 This is a top view of a partial structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the wire clip structure of this utility model.

[0024] In the diagram: 1. Frame beam; 2. Protective mesh panel; 3. Ground spike; 4. Support sleeve; 5. Support rod; 6. Connecting shaft; 7. Cylinder; 8. Rewind shaft; 9. Servo motor; 10. Cable clamp; 101. Cable groove; 11. Traction rope; 12. Tie; 13. Canopy covering; 14. Supporting protrusion; 15. Limiting plate. 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] like Figure 1-2 As shown, this utility model provides a technical solution: a geotechnical engineering foundation pit protection device, including two sets of parallel metal frame beams 1, with a metal protective mesh plate 2 detachably installed between the two sets of frame beams 1. The bottom of the bottom frame beam 1 is equipped with multiple sets of ground spikes 3, which are buried deep underground as a fixed foundation for the entire foundation pit protection.

[0027] like Figure 1-2 As shown, a strut sleeve 4 is rotatably mounted on the top frame beam 1. A telescopic strut 5 is slidably mounted inside the strut sleeve 4. The struts 5 on the front and rear sides are connected to each other by a connecting shaft 6.

[0028] like Figure 1-2 As shown, metal columns are detachably installed in the middle of the two sets of frame beams 1. The fixed end of the cylinder 7 is embedded in the column. The frame beam 1, the strut sleeve 4, the strut 5 and the cylinder 7 together form a stable triangular structure. The free end of the cylinder 7 is fixedly connected to the bottom of the connecting shaft 6. The wire part of the cylinder 7 passes through the bottom and is connected to the power supply.

[0029] like Figure 3-4 As shown, rotatable winding shafts 8 are installed on both the front and rear sides of the top frame beam 1. The winding shafts 8 are driven by an external servo motor 9. Multiple wire clamps 10 are fixed on the side of the support sleeve 4. Wire clamps 10 are provided with wire grooves 101.

[0030] like Figure 3 As shown, the cable groove 101 is an arc-shaped notch groove, in which the traction rope 11 is completely located inside the arc-shaped opening. The tie 12 passes through the notch and is connected to the traction rope 11 inside the arc-shaped opening. The diameter of the traction rope 11 is larger than the opening width of the notch. Therefore, the traction rope 11 will not come out of the notch. In addition, the traction rope 11 can be directly connected to the tarpaulin 13.

[0031] like Figure 4 As shown, a traction rope 11 is wound on both sets of winding shafts 8. The traction rope 11 passes through the cable clamp 10. A tie 12 is fixedly connected to the inner side of the traction rope 11. A tarpaulin 13 is connected to the end of the tie 12 away from the traction rope 11.

[0032] like Figure 2 As shown, a support protrusion 14 is installed on the rotating seat at the bottom of the strut sleeve 4. The tarpaulin 13 can bypass the support protrusion 14, and the length of the tarpaulin 13 is greater than the length of the frame beam 1 (so that the tarpaulin 13 can completely cover the beam).

[0033] like Figure 4 As shown, limit discs 15 are installed at both ends of the winding shaft 8. The limit discs 15 are used to limit the position of the traction rope 11.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] When using, combine Figure 1-2 It can be seen that when the entire foundation pit protection is in an open state, the tarpaulin 13 is completely rolled up on one of the roll-up shafts 8, and the strut sleeve 4 and strut 5 are basically parallel to the frame beam 1. At this time, the cylinder 7 is in a fully retracted state. In this state, it is convenient for engineering personnel to carry out temporary maintenance, surveying and other tasks.

[0036] When it is necessary to fully extend the tarpaulin 13 to cover the pit, first simultaneously open the cylinders 7 on both sides, driving the connecting shaft 6 to rise, thereby driving the strut sleeve 4 to rotate. During this process, the strut 5 extends out from the strut sleeve 4 and finally forms a shape like... Figure 2 As shown in the diagram, the top of the foundation pit protection has formed a structure similar to a roof.

[0037] Then, the servo motor 9 on the other side is activated, driving the winding shaft 8 on that side to wind up, which in turn drives the winding shaft 8 on the other side to begin unwinding. Under the traction of the tow rope 11, the tarpaulin 13 begins to slowly extend, and the tarpaulin 13... Figure 2 The roof structure shown extends upwards around connecting shaft 6, then downwards, ultimately covering the entire roof and completely concealing the foundation pit protection (as shown). Figure 1 (As shown in the diagram) In this state, when encountering rainwater or falling rocks, the triangular structure can promptly drain the rainwater and falling rocks, preventing their accumulation.

[0038] In summary, this geotechnical engineering foundation pit protection device, by setting up a retractable tarpaulin, allows the tarpaulin to be extended during use to completely cover the foundation pit, achieving the purpose of protection. When the tarpaulin is not needed, it can be completely retracted, leaving the top of the foundation pit fully exposed (for convenient temporary surveys, etc.). Furthermore, by using a liftable cylinder, the tarpaulin can be raised from the middle to form a roof-like structure. In this way, rainwater and falling rocks can be automatically discharged through the inclined surfaces on both sides, preventing the accumulation and collapse of the tarpaulin.

[0039] It should be noted that all electrical components mentioned in this article are electrically connected to an external main controller and 220V or 380V AC mains power. The main controller can be a conventional, known device such as a computer, and its control principles, internal structure, and control switching methods are all conventional methods of existing technology. These are directly cited here without further elaboration. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0040] 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 foundation pit protection device for geotechnical engineering, characterized in that: It includes two sets of parallel frame beams (1) arranged at the top and bottom, and a protective net plate (2) is detachably installed between the two sets of frame beams (1). Among them, multiple sets of ground spikes (3) are installed at the bottom of the frame beam (1) located at the bottom. A strut sleeve (4) is rotatably mounted on the top frame beam (1). A telescopic strut (5) is slidably mounted inside the strut sleeve (4). The struts (5) on the front and rear sides are connected to each other by a connecting shaft (6). A liftable cylinder (7) is embedded in the middle of the frame beam (1), and the free end of the cylinder (7) is fixedly connected to the bottom of the connecting shaft (6). Rotatable winding shafts (8) are installed on both the front and rear sides of the top frame beam (1). The winding shafts (8) are driven by an external servo motor (9). Multiple wire clamps (10) are fixed on the side of the support sleeve (4). Wire clamps (10) are provided with wire grooves (101). Two sets of winding shafts (8) are wound together with a traction rope (11). The traction rope (11) passes through the cable clamp (10). A tie (12) is fixedly connected to the inside of the traction rope (11). A tarpaulin (13) is connected to the end of the tie (12) away from the traction rope (11).

2. The geotechnical engineering foundation pit protection device according to claim 1, characterized in that: The groove (101) is an arc-shaped notch groove, wherein the traction rope (11) is completely located inside the arc-shaped opening, and the tie (12) passes through the notch and is connected to the traction rope (11) inside the arc-shaped opening. The diameter of the traction rope (11) is greater than the opening width of the notch.

3. The geotechnical engineering foundation pit protection device according to claim 1, characterized in that: Both ends of the winding shaft (8) are equipped with limit discs (15), which are used to limit the position of the traction rope (11).

4. The geotechnical engineering foundation pit protection device according to claim 1, characterized in that: The middle of the two sets of frame beams (1) is detachably equipped with columns, and the fixed end of the cylinder (7) is embedded inside the columns.

5. A geotechnical engineering foundation pit protection device according to claim 1, characterized in that: A support protrusion (14) is installed on the rotating seat at the bottom of the strut sleeve (4), and the length of the tarpaulin (13) is greater than the length of the frame beam (1).

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