Foundation pit supporting early warning equipment

Abstract

The utility model provides foundation pit support early warning equipment which comprises an anchor cable, a semicircular pressure box is sleeved on the anchor cable, a semicircular box cover is slidably mounted in the pressure box, a pressure gauge is mounted on the outer surface of the pressure box, a hollow semicircular sleeve is arranged on one side, away from the pressure gauge, of the pressure box, and the semicircular sleeve is sleeved on the semicircular box cover. A semi-circular ring is slidably installed in the semi-circular sleeve, one end of the semi-circular ring extends to the outer side of the semi-circular sleeve, the end, located in the semi-circular sleeve, of the semi-circular ring is connected with the semi-circular sleeve through a spring, the anchor cable is sleeved with the lock sleeve, and three conical lock cylinders are annularly inserted in the lock sleeve at equal intervals. The anchor cable is sleeved with a limiting piece used for limiting the distance among the pressure box, the semicircular sleeve and the foundation pit steel protection plate. The anchor cable recovery device has the advantages that the anchor cable dynamometer can be recovered, and resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to a foundation pit support early warning device, belonging to the technical field of foundation pit support. Background Art

[0002] When excavating a foundation pit, it is necessary to use a steel guard plate to support the pit wall to prevent the pit wall from collapsing. In order to facilitate the observation of the pressure on the steel guard plate, a hole is opened in the steel guard plate, and then the anchor cable is passed through the hole and the anchor rod is in the inner wall of the pit. An anchor dynamometer is installed at the exposed end of the anchor cable through a lock. When the anchor dynamometer is under pressure, a value will be displayed on the pressure gauge. The pressure condition of the steel guard plate of the foundation pit can be judged by observing the value on the pressure gauge, which plays an early warning role. At present, the pressure box in the anchor dynamometer is a circular ring structure. After the anchor dynamometer is restricted between the steel guard plate of the foundation pit and the lock, it is difficult to recycle and reuse the anchor dynamometer in the later stage because it is in a squeezed state, resulting in a waste of resources. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a foundation pit support early warning device to solve the problems raised in the above-mentioned background technology. The utility model realizes the recovery of the anchor cable dynamometer and reduces the waste of resources.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a foundation pit support early warning device, including an anchor cable, a semicircular pressure box is sleeved on the anchor cable, a semicircular box cover is slidably installed in the pressure box, one end of the box cover extends to the outside of the pressure box, a pressure gauge is installed on the outer surface of the pressure box, a hollow semicircular sleeve is provided on the side of the pressure box away from the pressure gauge, a semicircular ring is slidably installed in the semicircular sleeve, one end of the semicircular ring extends to the outside of the semicircular sleeve, one end of the semicircular ring in the semicircular sleeve is connected to the semicircular sleeve through a spring, the semicircular sleeve is connected to the pressure box through two groups of connecting parts, one end of the box cover on the outside of the pressure box and one end of the semicircular ring on the outside of the semicircular sleeve are both in contact with a lock sleeve, the lock sleeve is sleeved on the anchor cable, three conical lock cores are equidistantly inserted in the lock sleeve in an annular shape, and a limiting member for limiting the spacing between the pressure box, the semicircular sleeve and the foundation pit steel guard plate is sleeved on the anchor cable.

[0005] Furthermore, the limiting member includes a limiting plate, and the anchor cable is provided with a limiting plate for limiting the distance between the pressure box, the semicircular sleeve and the foundation pit steel guard plate. One side of the limiting plate is provided with multiple threaded holes in a circular shape and equidistantly spaced therefrom, and the threaded holes are threadedly connected with support bolts.

[0006] Furthermore, the connecting piece includes a first connecting ear, both ends of the pressure box are connected and fixed with the first connecting ear, the lower sides of the two first connecting ears are provided with a second connecting ear, the second connecting ear is connected and fixed to the semicircular sleeve, and the first connecting ear is connected and fixed to the second connecting ear by means of a connecting screw and a nut.

[0007] Furthermore, an upper small hole is formed on a side of the first connecting ear facing the second connecting ear, and a lower small hole is formed on a side of the second connecting ear facing the first connecting ear and aligned with the upper small hole. The connecting screw passes through the upper small hole and the lower small hole and is threadedly connected to a nut, and the nut is arranged on a side of the second connecting ear away from the first connecting ear.

[0008] Furthermore, the first connecting ear and the pressure box are an integrally formed structure, and the edge of the first connecting ear is processed with a first fillet.

[0009] Furthermore, the second connecting ear and the semicircular sleeve are an integrally formed structure, and the edge of the second connecting ear is processed with a second fillet.

[0010] Beneficial effects of the utility model:

[0011] 1. The structure formed by the semicircular pressure box and the semicircular sleeve is set on the anchor cable, and then the pressure box and the semicircular sleeve are connected by means of connecting screws and nuts. When the anchor cable dynamometer formed by the pressure box, the box cover and the pressure gauge needs to be recovered later, the nuts and connecting screws can be separated, thereby reducing the waste of resources.

[0012] 2. When the structure formed by the semicircular sleeve and the pressure box is pressed against the surface of the foundation pit steel guard plate by using the lock sleeve and the lock core, a limit plate is set between the pressure box and the foundation pit steel guard plate, and the support bolts are threadedly connected in the three threaded holes so that one end of the support bolt is in contact with the foundation pit steel guard plate, and then under the restriction of the support bolts and the limit rings, a gap is created between the pressure box, the semicircular sleeve and the foundation pit steel guard plate. When removing the structure formed by the pressure box and the semicircular sleeve from the anchor cable, first tighten the support bolt to shorten the length of the support bolt between the limit plate and the foundation pit steel guard plate. At this time, the pressure box and the semicircular sleeve are no longer squeezed, thereby facilitating the disassembly of the pressure box and the semicircular sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural schematic diagram of a foundation pit support early warning device of the utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 It is a schematic diagram of the assembly of a box cover, a pressure box and a pressure gauge in a foundation pit support early warning device of the utility model;

[0017] Figure 4 It is a schematic diagram of the assembly of a semicircular ring and a semicircular sleeve in a foundation pit support early warning device of the utility model;

[0018] Figure 5 It is a three-dimensional diagram of a limit plate in a foundation pit support early warning device of the utility model;

[0019] Figure 6 It is a cross-sectional view of a lock set in a foundation pit support early warning device of the utility model;

[0020] In the figure: 1-anchor cable, 2-limit plate, 3-pressure gauge, 4-lock set, 5-lock core, 6-support bolt, 7-connecting screw, 8-first connecting ear, 9-second connecting ear, 10-nut, 11-pressure box, 12-upper small hole, 13-box cover, 14-semicircular ring, 15-semicircular sleeve, 16-lower small hole, 17-threaded hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1 and Figure 3 The utility model provides a technical solution: a foundation pit support early warning device, including an anchor cable 1, a semicircular pressure box 11 is sleeved on the anchor cable 1, a semicircular box cover 13 is slidably installed in the pressure box 11, one end of the box cover 13 extends to the outside of the pressure box 11, a pressure gauge 3 is installed on the outer surface of the pressure box 11, the pressure box 11, the box cover 13 and the pressure gauge 3 together form an anchor cable dynamometer, and the working principle of the anchor cable dynamometer has been fully disclosed in the prior art, so it will not be repeated here.

[0023] See also Figure 1 , Figure 3 and Figure 4 A hollow semicircular sleeve 15 is provided on the side of the pressure box 11 away from the pressure gauge 3, and a semicircular ring 14 is slidably installed in the semicircular sleeve 15. One end of the semicircular ring 14 extends to the outside of the semicircular sleeve 15, and the end of the semicircular ring 14 in the semicircular sleeve 15 is connected to the semicircular sleeve 15 through a spring. The end of the box cover 13 on the outside of the pressure box 11 and the end of the semicircular ring 14 on the outside of the semicircular sleeve 15 are both in contact with the lock sleeve 4, and the semicircular ring 14 and the box cover 13 jointly support the lock sleeve 4, so that the lock sleeve 4 is subjected to balanced force.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 , both ends of the pressure box 11 are connected and fixed with a first connecting ear 8, wherein the first connecting ear 8 and the pressure box 11 are an integrally formed structure, and the edge of the first connecting ear 8 is processed with a first fillet, and the lower sides of the two first connecting ears 8 are provided with a second connecting ear 9, and the second connecting ear 9 is connected and fixed with a semicircular sleeve 15, wherein the second connecting ear 9 and the semicircular sleeve 15 are an integrally formed structure, and the edge of the second connecting ear 9 is processed with a second fillet, and the first connecting ear 8 is provided with an upper small hole 12 on the side facing the second connecting ear 9, and the second connecting ear 9 is provided with a lower small hole 16 aligned with the upper small hole 12 on the side facing the first connecting ear 8, and the connecting screw The thread 7 passes through the upper small hole 12 and the lower small hole 16 and is threadedly connected to the nut 10. At this time, the nut 10 is on the side of the second connecting ear 9 away from the first connecting ear 8. The lock sleeve 4 is sleeved on the anchor cable 1. Three conical lock cores 5 are arranged in a ring shape and equidistantly in the lock sleeve 4. The structure formed by the semicircular pressure box 11 and the semicircular sleeve 15 is sleeved on the anchor cable 1, and then the pressure box 11 and the semicircular sleeve 15 are connected by the connecting screw 7 and the nut 10. When the anchor cable dynamometer formed by the pressure box 11, the box cover 13 and the pressure gauge 3 needs to be recovered later, the nut 10 and the connecting screw 7 can be separated, thereby reducing the waste of resources.

[0025] See also Figure 1 and Figure 5 The anchor cable 1 is provided with a limit plate 2 for limiting the distance between the pressure box 11, the semicircular sleeve 15 and the foundation pit steel guard plate. A plurality of threaded holes 17 are equidistantly provided in a circular shape on one side of the limit plate 2. The threaded holes 17 are threadedly connected with support bolts 6. When the structure formed by the semicircular sleeve 15 and the pressure box 11 is pressed on the surface of the foundation pit steel guard plate by using the lock sleeve 4 and the lock core 5, the limit plate 2 is arranged between the pressure box 11 and the foundation pit steel guard plate, and the support bolts 6 are threadedly connected in the three threaded holes 17. Bolt 6 makes one end of the supporting bolt 6 contact with the steel guard plate of the foundation pit, and then under the restriction of the supporting bolt 6 and the limiting ring, there is a gap between the pressure box 11, the semicircular sleeve 15 and the steel guard plate of the foundation pit. When removing the structure formed by the pressure box 11 and the semicircular sleeve 15 from the anchor cable 1, firstly tighten the supporting bolt 6 to shorten the length of the supporting bolt 6 between the limiting plate 2 and the steel guard plate of the foundation pit. At this time, the pressure box 11 and the semicircular sleeve 15 are no longer squeezed, thereby facilitating the disassembly of the pressure box 11 and the semicircular sleeve 15.

[0026] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A foundation pit support early warning device, comprising an anchor cable (1), characterized in that: The anchor cable (1) is provided with a semicircular pressure box (11), a semicircular box cover (13) is slidably mounted in the pressure box (11), one end of the box cover (13) extends to the outside of the pressure box (11), a pressure gauge (3) is mounted on the outer surface of the pressure box (11), a hollow semicircular sleeve (15) is provided on the side of the pressure box (11) facing away from the pressure gauge (3), a semicircular ring (14) is slidably mounted in the semicircular sleeve (15), one end of the semicircular ring (14) extends to the outside of the semicircular sleeve (15), and the semicircular ring (14) is located inside the semicircular sleeve (15). One end of the cover (13) is connected to the semicircular sleeve (15) via a spring, the semicircular sleeve (15) is connected to the pressure box (11) via two sets of connecting parts, one end of the cover (13) located outside the pressure box (11) and one end of the semicircular ring (14) located outside the semicircular sleeve (15) are both in contact with the lock sleeve (4), the lock sleeve (4) is sleeved on the anchor cable (1), three conical lock cores (5) are equidistantly arranged in a ring shape in the lock sleeve (4), and a limiter for limiting the distance between the pressure box (11), the semicircular sleeve (15) and the foundation pit steel guard plate is sleeved on the anchor cable (1).

2. A foundation pit support early warning device according to claim 1, characterized in that: The limiting member comprises a limiting plate (2), the anchor cable (1) is sleeved with a limiting plate (2) for limiting the spacing between the pressure box (11), the semicircular sleeve (15) and the foundation pit steel guard plate, and a plurality of threaded holes (17) are formed in a circular shape and equidistantly on one side surface of the limiting plate (2), and the threaded holes (17) are internally threadedly connected to support bolts (6).

3. The foundation pit support early warning device according to claim 1 is characterized in that: The connecting member comprises a first connecting ear (8), both ends of the pressure box (11) are connected and fixed with the first connecting ear (8), the lower sides of the two first connecting ears (8) are provided with a second connecting ear (9), the second connecting ear (9) is connected and fixed to the semicircular sleeve (15), and the first connecting ear (8) is connected and fixed to the second connecting ear (9) by means of a connecting screw (7) and a nut (10) in cooperation.

4. The foundation pit support early warning device according to claim 3 is characterized in that: An upper small hole (12) is formed on a side of the first connecting ear (8) facing the second connecting ear (9), and a lower small hole (16) is formed on a side of the second connecting ear (9) facing the first connecting ear (8) and aligned with the upper small hole (12). The connecting screw (7) passes through the upper small hole (12) and the lower small hole (16) and is threadedly connected to the nut (10). The nut (10) is arranged on a side of the second connecting ear (9) facing away from the first connecting ear (8).

5. The foundation pit support early warning device according to claim 3 is characterized in that: The first connecting ear (8) and the pressure box (11) are an integrally formed structure, and the edge of the first connecting ear (8) is processed with a first rounded corner.

6. The foundation pit support early warning device according to claim 3, characterized in that: The second connecting ear (9) and the semicircular sleeve (15) are an integrally formed structure, and the edge of the second connecting ear (9) is processed with a second rounded corner.

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