Early warning device for foundation pit collapse

Abstract

The utility model discloses an early warning device for foundation pit collapse, and relates to the technical field of foundation pit early warning. The early warning device for foundation pit collapse comprises a foundation pit, a base is fixedly connected to the interior of the foundation pit, a fixing column is fixedly connected to the surface of the base, an alarm is fixedly connected to the top face of the fixing column, a displacement sensor is arranged on the side face of the alarm, and a bolt is slidably connected to the interior of the base. The surface of the bolt is fixedly connected with a nut, and the interior of the bolt is fixedly connected with a screw tip. According to the device, the bolt is manually knocked into the foundation pit, so that one end of the supporting rod firstly makes contact with filler in the foundation pit in the descending process of the bolt, the supporting rod can be turned over due to continuous descending of the bolt and is independently clamped into the foundation pit, and the base can be more stably fixed into the foundation pit; therefore, the equipment can be more convenient and stable in the installation and use process.

Description

Technical Field

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

[0002] The foundation pit collapse warning device is a device used to monitor and warn of the risk of foundation pit collapse in advance. In civil engineering and construction, foundation pit excavation is a common operation, but due to the influence of factors such as soil mechanical properties and groundwater, the soil layer around the foundation pit may be unstable, thus increasing the risk of foundation pit collapse.

[0003] According to a disclosed one (publication number: CN 209556000 U), the utility model provides a monitoring device for foundation pit settlement, including a displacement sensor, a cross bar, a telescopic rod, a data processing center and an alarm, wherein the telescopic rod is vertically arranged, a storage box is provided on the top of the telescopic rod, the data processing center and the alarm are both arranged in the storage box, the cross bar is evenly distributed around the storage box, and is fixedly connected to the outside of the storage box. The foundation pit collapse warning device in the above application is connected to the side wall of the foundation pit through the cross bar, and the telescopic rod is connected to the bottom of the foundation pit. When the foundation pit settles, the length of the telescopic rod will change accordingly. The displacement sensor can reflect the settlement of the foundation pit in real time, but the device is only fixed in the foundation pit by a bracket, which is inconvenient for personnel to install, and the bracket may topple over during use. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a foundation pit collapse warning device, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a foundation pit collapse warning device, including a foundation pit, the interior of the foundation pit is fixedly connected to a base, the surface of the base is fixedly connected to a fixed column, the top surface of the fixed column is fixedly connected to an alarm, and the side of the alarm is provided with a displacement sensor;

[0005] The base is slidably connected to a bolt inside, a nut is fixedly connected to the surface of the bolt, a screw tip is fixedly connected to the inside of the bolt, a second slide groove is provided on the surface of the screw tip, a first slide groove is provided on the surface of the bolt, a rotating shaft is rotatably connected to the inside of the first slide groove, a support rod is fixedly connected to the surface of the rotating shaft, and a sliding rod is fixedly connected to the side of the support rod.

[0006] Preferably, the second slide groove passes through the surface of the bolt, and a portion of the second slide groove and the first slide groove overlap each other, so that the sliding rod fixedly connected to the side of the support rod can limit the support rod due to the length of the sliding rod when rotating, so that the support rod will not flip excessively.

[0007] Preferably, the bolt is slidably connected to the inside of the foundation pit, and the bolt is also slidably connected to the inside of the base, so that personnel can manually hammer the nut to squeeze the bolt into the inside of the foundation pit, thereby completing the operation of fixing the base inside the foundation pit.

[0008] Preferably, the support rod is slidably connected to the inside of slide groove one, and the sliding rod is slidably connected to the inside of slide groove two. Through the setting of the sliding rod, the support rod will drive the sliding rod to slide inside slide groove two when it rotates, and the rotation angle of the support rod will be limited by the length of the sliding rod.

[0009] Preferably, a fixing plate is fixedly connected to the side of the base, a stopper is slidably connected to the side of the fixing plate, and a reinforcing rib is fixedly connected to the surface of the base.

[0010] Preferably, one end of the reinforcing rib is fixedly connected to the side of the fixed plate, and the shape of the stop block is set to be an arc. By setting the shape of the stop block to be an arc, the stop block can better fit the irregular inner wall of the foundation pit, so that the pressure of the inner wall can be more evenly transmitted to the fixed plate, and the setting of the reinforcing rib allows the fixed plate to fit more stably on the inner wall of the foundation pit.

[0011] The utility model provides a device for early warning of foundation pit collapse, which has the following beneficial effects:

[0012] (1) The present application manually knocks the bolts into the interior of the foundation pit, so that during the descent of the bolts, one end of the support rod will first contact the filler in the foundation pit, so that the support rod will flip over and be stuck into the interior of the foundation pit alone due to the continued descent of the bolts, so that the base can be more firmly fixed inside the foundation pit, thereby making the equipment more convenient and stable during installation and use.

[0013] (2) The present application sets a stopper so that when the fixed plate is in contact with the inner wall of the foundation pit, the stopper will be more in contact with the irregularities of the inner wall of the foundation pit, so that the pressure of the inner wall of the foundation pit can be more evenly transmitted to the fixed plate, so that the displacement sensor can respond more accurately to the settlement of the inner wall of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the base of the utility model and its structure;

[0016] Figure 3 This is a schematic diagram of the bolt and its structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of A.

[0018] In the figure: 1. foundation pit; 2. alarm; 3. fixed column; 4. base; 5. nut; 6. fixed plate; 7. block; 8. reinforcing rib; 9. bolt; 10. support rod; 11. screw tip; 12. slide slot 1; 13. rotating shaft; 14. slide slot 2; 15. slide rod; 16. displacement sensor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] For example, see Figure 1-4 , a foundation pit collapse warning device, comprising a foundation pit 1, a base 4 is fixedly connected to the inside of the foundation pit 1, a fixed column 3 is fixedly connected to the surface of the base 4, an alarm 2 is fixedly connected to the top surface of the fixed column 3, and a displacement sensor 16 is arranged on the side of the alarm 2;

[0021] The base 4 is slidably connected with a bolt 9 inside the base 4, and the bolt 9 is slidably connected to the inside of the foundation pit 1, and the bolt 9 is also slidably connected to the inside of the base 4, so that a person can manually hammer the nut 5 to squeeze the bolt 9 into the inside of the foundation pit 1, thereby completing the operation of fixing the base 4 inside the foundation pit 1, the surface of the bolt 9 is fixedly connected with a nut 5, and the inside of the bolt 9 is fixedly connected with a screw tip 11, and the surface of the screw tip 11 is provided with a slide groove 2 14, and the slide groove 2 14 runs through the surface of the bolt 9, and a part of the slide groove 2 14 and the slide groove 1 12 overlap with each other, so that the slide rod 15 fixedly connected to the side of the support rod 10 can limit the support rod 10 when it rotates due to the length of the slide rod 15, so that the support rod 10 will not be excessively flipped, and the surface of the bolt 9 is provided with a slide groove 12, and the inside of the slide groove 12 is rotatably connected with a rotating shaft 13, and the rotation The surface of the shaft 13 is fixedly connected with a support rod 10, and the support rod 10 is slidably connected to the inside of the slide groove 12, and the slide rod 15 is slidably connected to the inside of the slide groove 2 14. Through the setting of the slide rod 15, the support rod 10 will drive the slide rod 15 to slide inside the slide groove 2 14 when it rotates, and the rotation angle of the support rod 10 will be limited by the length of the slide rod 15. The side of the support rod 10 is fixedly connected with the slide rod 15. In this application, the bolt 9 is manually knocked into the inside of the foundation pit 1, so that on the way of the bolt 9 descending, one end of the support rod 10 will first contact the filler in the foundation pit 1, so that the support rod 10 will be flipped due to the continued descent of the bolt 9 and stuck into the inside of the foundation pit 1 alone, so that the base 4 can be more firmly fixed to the inside of the foundation pit 1, thereby making the equipment more convenient and stable during installation and use.

[0022] When the present embodiment is used, the nut 5 is hammered manually, so that the nut 5 drives the bolt 9 fixedly connected to its bottom surface, and the bolt 9 slides into the interior of the foundation pit 1. At the same time, the support rod 10 is fixedly connected to the surface of the rotating shaft 13, and the rotating shaft 13 is rotatably connected to the inside of the sliding groove 12 opened on the side of the bolt 9. Since the support rod 10 has a certain initial curvature and protrudes from the surface of the bolt 9, the support rod 10 moves downward with the bolt 9 and performs a certain flip. In addition, since the side of the support rod 10 is fixedly connected to the sliding rod 15, the sliding rod 15 is slidably connected to the inside of the sliding groove 12 opened on the side of the bolt 9. It is connected to the inside of the second slide groove 14 opened in the screw tip 11, so that when the support rod 10 is flipped, it will drive the slide rod 15 to slide upward inside the second slide groove 14, and when the slide rod 15 slides to the top of the second slide groove 14, it will limit the support rod 10 so that the support rod 10 will not continue to flip, and at the same time, the support rod 10 will be independently stuck into the inside of the foundation pit 1, thereby adding additional support points, so that the bolts 9 can be more firmly fixed to the inside of the foundation pit 1, so that the base 4 can be more stably fixed to the inner bottom surface of the foundation pit 1.

[0023] For example 2, please refer to Figure 1-2 , a stable fitting component is added on the basis of embodiment 1, and the stable fitting component includes a fixing plate 6, a side of the fixing plate 6 is slidably connected with a stopper 7, and the surface of the base 4 is fixedly connected with a reinforcing rib 8, one end of the reinforcing rib 8 is fixedly connected to the side of the fixing plate 6, and the shape of the stopper 7 is set to be an arc. By setting the shape of the stopper 7 to be an arc, the stopper 7 can better fit the irregular inner wall of the foundation pit 1, so that the pressure of the inner wall can be more evenly transmitted to the fixing plate 6. The fixing plate 6 can be more stably fitted to the inner wall of the foundation pit 1 through the setting of the reinforcing rib 8. The present application sets the stopper 7 so that when the fixing plate 6 fits the inner wall of the foundation pit 1, the stopper 7 will be more fitted to the irregularities of the inner wall of the foundation pit 1, so that the pressure of the inner wall of the foundation pit 1 can be more evenly transmitted to the fixing plate 6, so that the displacement sensor 16 can more accurately respond to the settlement of the inner wall of the foundation pit 1.

[0024] When in use, this embodiment is based on the first embodiment. When the fixed plate 6 fits the inner wall of the foundation pit 1, because the shape of the stop block 7 is set to be an arc shape, and the stop block 7 is rotatably connected to the side of the fixed plate 6, the stop block 7 can fit the irregularities of the inner wall of the foundation pit 1 more closely, so that the pressure of the inner wall of the foundation pit 1 can be more evenly transmitted to the entire fixed plate 6, and then the reinforcing ribs 8 fixedly connected to the surface of the base 4 can make the fixed plate 6 fit more stably on the inner wall of the foundation pit 1, so that the displacement sensor 16 can respond more accurately to the settlement of the inner wall of the foundation pit 1, and the fixed plate 6 will not be broken due to excessive pressure at a certain point in the foundation pit 1.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foundation pit collapse warning device, comprising a foundation pit (1), characterized in that: A base (4) is fixedly connected to the interior of the foundation pit (1), a fixing column (3) is fixedly connected to the surface of the base (4), an alarm (2) is fixedly connected to the top surface of the fixing column (3), and a displacement sensor (16) is provided on the side of the alarm (2); The base (4) is internally slidably connected with a bolt (9), the surface of the bolt (9) is fixedly connected with a nut (5), the bolt (9) is internally fixedly connected with a nut tip (11), the surface of the nut tip (11) is provided with a second slide groove (14), the surface of the bolt (9) is provided with a first slide groove (12), the interior of the first slide groove (12) is rotatably connected with a rotating shaft (13), the surface of the rotating shaft (13) is fixedly connected with a support rod (10), and the side of the support rod (10) is fixedly connected with a sliding rod (15).

2. The early warning device for foundation pit collapse according to claim 1, characterized in that: The second slide groove (14) passes through the surface of the bolt (9), and a portion of the second slide groove (14) and the first slide groove (12) overlap each other.

3. The early warning device for foundation pit collapse according to claim 1 is characterized in that: The bolt (9) is slidably connected to the inside of the foundation pit (1), and the bolt (9) is also slidably connected to the inside of the base (4).

4. The early warning device for foundation pit collapse according to claim 1 is characterized in that: The support rod (10) is slidably connected to the interior of the first slide groove (12), and the slide rod (15) is slidably connected to the interior of the second slide groove (14).

5. The early warning device for foundation pit collapse according to claim 1 is characterized in that: A fixing plate (6) is fixedly connected to the side of the base (4), a stopper (7) is slidably connected to the side of the fixing plate (6), and a reinforcing rib (8) is fixedly connected to the surface of the base (4).

6. The early warning device for foundation pit collapse according to claim 5, characterized in that: One end of the reinforcing rib (8) is fixedly connected to the side surface of the fixing plate (6), and the shape of the stopper (7) is set to be an arc shape.

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