A protection device for working in a trench or foundation pit

Abstract

This utility model discloses a protective device for operations in trenches or foundation pits, belonging to the field of trench / foundation pit operation protection technology. The protective device includes multiple V-shaped mounting plates arranged in a rectangular array and a baffle detachably fixed between two adjacent V-shaped mounting plates. Each V-shaped mounting plate has symmetrical through holes at both ends, and rotating tubes are provided on both sides of the inner wall of the V-shaped mounting plates. Telescopic rods are threaded into both ends of each rotating tube. A first insert rod is fixed to the side wall of each telescopic rod, inserting into a through hole at one end of the V-shaped mounting plate. A second insert rod is adjustablely provided on the telescopic rod, inserting into a through hole at the other end of the V-shaped mounting plate. This protective device for operations in trenches or foundation pits, through its modularly designed V-shaped mounting plates and baffles, shortens installation and disassembly time, improving the convenience and stability of baffle installation.

Description

Technical Field

[0001] This utility model belongs to the field of trench / foundation pit operation protection technology, specifically relating to a protection device for operations in trenches or foundation pits. Background Technology

[0002] When carrying out various construction and operations within trenches or pits, it is crucial to ensure the safety of workers, maintain slope stability to prevent damage to surrounding foundations, buildings, or structures, and prevent collapses that could damage facilities within the trench. Traditional existing support methods typically employ sheet pile support systems.

[0003] In practical use, sheet pile support systems require driving support piles into trenches or foundation pits to keep the steel sheets fixed. Driving and pulling them out sometimes requires a pile driver, and in some environmental conditions, this is not possible due to space, underground obstacles, or vibration factors. There are drawbacks such as the inability of pile driving equipment to enter and carry out construction, and vibrations causing damage to surrounding buildings or underground facilities, which makes the installation process of sheet pile support systems complicated. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a protective device for working in trenches or foundation pits. This protective device for working in trenches or foundation pits aims to solve the technical problem that under the prior art, pile drivers are sometimes required for driving and pulling out, and in some environmental conditions, it is impossible to achieve this due to space, underground obstacles or vibration factors; which leads to the cumbersome installation process of steel sheet pile support systems.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a protective device for working in trenches or pits. The protective device includes multiple V-shaped mounting plates arranged in a rectangular array and a baffle that is detachably fixed between two adjacent V-shaped mounting plates. Both ends of the V-shaped mounting plates are symmetrically provided with through holes penetrating the baffle, and both sides of the inner wall of the V-shaped mounting plates are provided with rotating tubes. Both ends of the rotating tubes are threaded with telescopic rods. The side wall of the telescopic rod is fixed with a first insert rod that is inserted into the through hole at one end of the V-shaped mounting plate, and a second insert rod is adjustablely provided on the telescopic rod that is inserted into the through hole at the other end of the V-shaped mounting plate.

[0008] When using this technical solution, multiple V-shaped mounting plates and baffles are provided. The baffles are embedded and snapped into the connecting grooves on the V-shaped mounting plates, allowing the first insert rod on the telescopic rod to be inserted into the through holes on both sides of the V-shaped mounting plates, thereby supporting and positioning the baffles and V-shaped mounting plates. The modular design of the V-shaped mounting plates and baffles shortens the installation and disassembly time, improving the convenience and stability of baffle installation.

[0009] Preferably, the sidewall of the baffle is fixed with ribs at equal intervals, and the bottom end of the baffle is threaded with multiple positioning cones.

[0010] Furthermore, both ends of the V-shaped mounting plate are provided with connecting grooves, and both ends of the baffle are respectively fitted into the connecting grooves on the two V-shaped mounting plates.

[0011] Furthermore, the two ends of the rotating tube are provided with first threaded holes with opposite thread directions, and an anti-slip part is provided at the center of the rotating tube.

[0012] Furthermore, the end of the telescopic rod furthest from the first insert is threaded into the first screw hole, and the other end of the telescopic rod is fixedly fitted with a protrusion.

[0013] Furthermore, a second screw hole is provided at the center of the protrusion, the second insert rod is threaded into the second screw hole, and the included angle between the second insert rod and the first insert rod is 90 degrees.

[0014] Furthermore, one end of the second insertion rod is fixed with a protruding ring that abuts against the inner wall of the V-shaped mounting plate, and the other end of the second insertion rod is equipped with a knob.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model features multiple V-shaped mounting plates and baffles. The baffles are embedded in the connecting grooves of the V-shaped mounting plates, allowing the first insert rod on the telescopic rod to be inserted into the through holes on both sides of the V-shaped mounting plates, thereby supporting and positioning the baffles and V-shaped mounting plates. The modular design of the V-shaped mounting plates and baffles shortens the installation and disassembly time, improving the convenience and stability of baffle installation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the V-shaped mounting plate in this utility model;

[0021] Figure 3 This is a schematic diagram of the rotating tube in this utility model;

[0022] Figure 4 This is a cross-sectional view of the rotating tube in this utility model.

[0023] The markings in the attached diagram are as follows: 1. V-shaped mounting plate; 2. baffle; 3. rotating tube; 4. rib plate; 5. positioning cone; 6. through hole; 7. connecting groove; 8. telescopic rod; 9. protrusion; 10. first insert rod; 11. knob; 12. anti-slip part; 13. convex ring; 14. second insert rod; 15. first screw hole; 16. second screw hole. Detailed Implementation

[0024] 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.

[0025] This specific embodiment is a protective device for operations in trenches or pits, and its structural schematic diagram is shown below. Figure 1 and Figure 2 As shown, the protective device for working in trenches or pits includes multiple V-shaped mounting plates 1 arranged in a rectangular array and baffles 2 detachably fixed between two adjacent V-shaped mounting plates 1. Both ends of the V-shaped mounting plates 1 have symmetrical through holes 6 penetrating the baffles 2. Rotating tubes 3 are provided on both sides of the inner wall of the V-shaped mounting plates 1. Telescopic rods 8 are threaded into both ends of the rotating tubes 3. A first insert 10, which is inserted into the through hole 6 at one end of a V-shaped mounting plate 1, is fixed to the side wall of the telescopic rod 8. Adjustable inserts are provided on the telescopic rod 8 for insertion into... The second insert rod 14 in the through hole 6 at the other end of the V-shaped mounting plate 1 is embedded in the connecting groove 7 on the V-shaped mounting plate 1, so that the first insert rod 10 on the telescopic rod 8 is inserted into the through holes 6 on both sides of the V-shaped mounting plate 1, thereby supporting and positioning the baffle 2 and the V-shaped mounting plate 1. Through the modular design of the V-shaped mounting plate 1 and the baffle 2, the installation and disassembly time is short, improving the convenience and stability of the baffle 2 installation. The baffle 2 is provided with different lengths, so it is suitable for the support of different types of foundation pits.

[0026] Ribs 4 are fixed at equal intervals on the side wall of baffle 2, and multiple positioning cones 5 are threaded into the bottom end of baffle 2. Ribs 4 improve the deformation resistance of baffle 2. When baffle 2 is installed, positioning cones 5 are inserted into the ground to keep baffle 2 and V-shaped mounting plate 1 stable. Both ends of V-shaped mounting plate 1 are provided with connecting grooves 7. Both ends of baffle 2 are respectively fitted into the connecting grooves 7 on the two V-shaped mounting plates 1. Both ends of rotating tube 3 are provided with first screw holes 15 with opposite thread directions, and anti-slip part 12 is provided at the center of rotating tube 3. Since the thread directions of both ends of rotating tube 3 are opposite, the two telescopic rods 8 slide towards each other in rotating tube 3 during rotation. During the rotation of rotating tube 3, the telescopic rods 8 are held by hand to prevent the telescopic rods 8 from rotating synchronously with rotating tube 3.

[0027] like Figure 3 and Figure 4 As shown, the end of the telescopic rod 8 away from the first insert rod 10 is threaded into the first screw hole 15, and the other end of the telescopic rod 8 is fixedly installed with a protrusion 9. A second screw hole 16 is opened at the center of the protrusion 9, and the second insert rod 14 is threaded into the second screw hole 16. The included angle between the second insert rod 14 and the first insert rod 10 is 90 degrees. One end of the second insert rod 14 is fixed with a convex ring 13 that abuts against the inner wall of the V-shaped mounting plate 1, and the other end of the second insert rod 14 is installed with a knob 11. During the sliding process of the telescopic rod 8, the first insert rod 10 is inserted into the through hole 6. The side wall of the telescopic rod 8 abuts against one side of the inner wall of the V-shaped mounting plate 1. At the same time, the second insert rod 14 corresponds to the through hole 6 on the other side of the inner wall of the V-shaped mounting plate 1. The knob 11 drives the second insert rod 14 to rotate, so that the second insert rod 14 is inserted into the through hole 6.

[0028] Working principle: When using the device of this technical solution, multiple baffles 2 are arranged in a rectangular array and contact the inner wall of the foundation pit. The positioning cone 5 at the bottom of the baffle 2 is inserted into the bottom wall of the foundation pit. The V-shaped mounting plate 1 is connected to two adjacent baffles 2 through the connecting groove 7. After the telescopic rods 8 at both ends of the rotating tube 3 are aligned with the through holes 6 on the V-shaped mounting plate 1, the first insert rods 10 on the two telescopic rods 8 are inserted into the through holes 6 during the rotation of the rotating tube 3. The side wall of the telescopic rod 8 abuts against one side of the inner wall of the V-shaped mounting plate 1, providing lateral support for the foundation pit baffle 2. At the same time, the second insert rod 14 is aligned with the through hole 6 on the other side of the inner wall of the V-shaped mounting plate 1. By holding the knob 11, the second insert rod 14 is rotated, so that the second insert rod 14 is inserted into the through hole 6 to provide longitudinal support for the V-shaped mounting plate 1. This improves the convenience and stability of the installation of the baffle 2. At the same time, the rotating tube 3 and telescopic rods 8 located on both sides of the inner wall of the baffle 2 increase the working space inside the foundation pit.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective device for working in trenches or pits, comprising a plurality of V-shaped mounting plates (1) arranged in a rectangular array and baffles (2) detachably fixed between adjacent V-shaped mounting plates (1), characterized in that, The V-shaped mounting plate (1) has through holes (6) symmetrically opened at both ends of the baffle (2), and rotating tubes (3) are provided on both sides of the inner wall of the V-shaped mounting plate (1). Telescopic rods (8) are threaded into both ends of the rotating tubes (3). A first insert rod (10) is fixed to the side wall of the telescopic rod (8) and inserted into the through hole (6) at one end of the V-shaped mounting plate (1). A second insert rod (14) is adjustablely provided on the telescopic rod (8) and inserted into the through hole (6) at the other end of the V-shaped mounting plate (1).

2. A protective device for working in trenches or pits according to claim 1, characterized in that, The side wall of the baffle (2) is fixed with ribs (4) at equal intervals, and the bottom end of the baffle (2) is threaded with multiple positioning cones (5).

3. A protective device for working in trenches or pits according to claim 2, characterized in that, Both ends of the V-shaped mounting plate (1) are provided with connecting grooves (7), and both ends of the baffle (2) are respectively inserted into the connecting grooves (7) on the two V-shaped mounting plates (1).

4. A protective device for working in trenches or pits according to claim 1, characterized in that, The rotating tube (3) has first threaded holes (15) with opposite thread directions at both ends, and an anti-slip part (12) is provided at the center of the rotating tube (3).

5. A protective device for working in trenches or pits according to claim 4, characterized in that, The telescopic rod (8) is threaded into the first screw hole (15) at one end away from the first insert rod (10), and a protrusion (9) is fixedly installed at the other end of the telescopic rod (8).

6. A protective device for working in trenches or pits according to claim 5, characterized in that, A second screw hole (16) is provided at the center of the protrusion (9), and the second insert (14) is threaded into the second screw hole (16), and the included angle between the second insert (14) and the first insert (10) is 90 degrees.

7. A protective device for working in trenches or pits according to claim 6, characterized in that, One end of the second insertion rod (14) is fixed with a protruding ring (13) that abuts against the inner wall of the V-shaped mounting plate (1), and the other end of the second insertion rod (14) is equipped with a knob (11).

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