Deformation alarm device for deep foundation pit

Abstract

The utility model relates to the technical field of deep foundation pit detection, and discloses a deformation alarm device of a deep foundation pit, which comprises a fixed seat and a top seat, the middle part of the bottom end of the top seat is fixedly connected with a top plate, the top of the top plate is fixedly connected with a screw rod, and the bottom end of the screw rod is fixedly connected with a limiting block. An annular sliding rail is arranged in the middle of the bottom end of the top seat, a rotary sliding seat is slidably connected to the inner wall of the annular sliding rail, an electric telescopic mast is fixedly connected to the bottom end of the rotary sliding seat, and a sensor protection shell is fixedly connected to the bottom end of the electric telescopic mast. According to the utility model, the electric telescopic mast is started through the control panel to drive the sensor protection shell to move up and down, so that the infrared sensor rotates around the screw rod, the detection range is expanded, monitoring dead angles are avoided, the infrared sensor detects the outside through the observation window, and dust is prevented from damaging equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep foundation pit detection technical field especially, relates to a kind of deformation alarm device of deep foundation pit. BACKGROUND

[0002] Deep foundation pit refers to the groove with the depth more than five meters, and it is the foundation of large construction facilities, but deep foundation pit engineering has great risk, and traditional manual monitoring mainly relies on manual use of level and total station to measure foundation pit, which is too large to work and low in efficiency, and it is difficult to grasp the deformation of foundation pit in real time, therefore, people have developed the deformation alarm device of deep foundation pit.

[0003] The deformation alarm device of deep foundation pit can arrange monitoring points at different positions and depths of foundation pit, realize monitoring of various deformation data of deep foundation pit, immediately issue alarm signal when the change of monitored deformation data is too large, take preventive measures in advance, and record the deformation data of deep foundation pit to form data archives.

[0004] In order to ensure the monitoring effect of deformation alarm device, infrared receiver needs to be installed on the wall at intervals, which is large in quantity, increases cost and installation difficulty, is easy to cause false alarm due to installation position deviation, and the device is easy to accumulate dust in the center position above deep foundation pit, which accelerates the aging of equipment, and dust also blocks infrared sensor, affects signal connection, the existing solution is to increase the sensing range of sensor, reduce the installation quantity of receiver, and set dust cover or protective shell for infrared sensor and receiver, but fog and rain still interfere with infrared transmission in bad weather, affect monitoring accuracy and reliability, and there is monitoring blind area in foundation pit. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of deformation alarm device of deep foundation pit, to improve the problems of monitoring blind area in foundation pit and fog interference with infrared transmission in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a deformation alarm device of deep foundation pit, including fixed seat and top seat, its characterized in that: the bottom middle part of top seat is fixedly connected with top plate, the bottom of top plate is fixedly connected with lead screw, the bottom of lead screw is fixedly connected with limit block, the bottom middle part of top seat is equipped with annular slide rail, the bottom of top seat is slidably connected with rotary slide, the bottom of rotary slide is fixedly connected with electric telescopic mast, the bottom of electric telescopic mast is fixedly connected with sensor protection shell, the inner bottom wall of sensor protection shell is fixedly connected with infrared sensor, the front side of infrared sensor is fixedly connected with signal amplifier, the right side of sensor protection shell is provided with observation window, the front side of sensor protection shell is rotatably connected with overhauling cover, the outside of sensor protection shell is provided with auxiliary assembly, the outside of fixed seat is provided with fixed mechanism, and the fixed mechanism is used for fixing the alarm device in deep foundation pit.

[0007] As a further description of the above technical scheme:

[0008] The fixed mechanism includes telescopic arm, the left side of telescopic arm is fixedly connected on the right side of fixed seat, the front and back sides of fixed seat are fixedly connected with a plurality of guide sleeves, the top end of a plurality of guide sleeves is fixedly connected with gasket, the inner wall of a plurality of guide sleeves is slidably connected with anchor nail, the bottom of fixed seat is fixedly connected with vibration sensor, and the bottom of fixed seat is fixedly connected with a plurality of damping buffers.

[0009] As a further description of the above technical scheme:

[0010] The auxiliary assembly includes sliding block, the inner wall of sliding block is threadedly connected on the outside of lead screw, the right side of sliding block is fixedly connected with the left side of the outer wall of sensor protection shell, the top of the inner wall of sensor protection shell is fixedly connected with humidity sensor, and the left side of the inner wall of sensor protection shell is fixedly connected with heater.

[0011] As a further description of the above technical scheme:

[0012] The left end of the front side of sensor protection shell is fixedly connected with pin shaft, and the left end of the front side of overhauling cover is fixedly connected with rotating shaft.

[0013] As a further description of the above technical scheme:

[0014] The outside of top plate and the bottom end of top seat are equipped with a plurality of threaded holes, and the bottom of top plate is threadedly connected with a plurality of screws.

[0015] As a further description of the above technical scheme:

[0016] The top left side of the sensor protection shell is fixedly connected with an oil cup, and the left bottom of the oil cup is fixedly connected with an oil brush.

[0017] As a further description of the above technical solution:

[0018] The top right side of the sensor protection shell is fixedly connected with a mounting seat, and the inner wall of the mounting seat is fixedly connected with a powerful fan.

[0019] As a further description of the above technical solution:

[0020] The top front side of the fixing seat is fixedly connected with a control console, and the top of the control console is fixedly connected with a control panel.

[0021] The utility model has the following beneficial effects:

[0022] 1、 in the utility model, through control panel starts electric telescopic mast, and electric telescopic mast drives sensor protection shell to move up and down, simultaneously, because sensor protection shell is indirectly connected with screw rod, makes infrared sensor when moving up and down, can rotate around screw rod, make the detection range of infrared sensor greatly increase, avoid monitoring blind area, and observation window can avoid dust to cause damage to equipment.

[0023] 2、 in the utility model, the fixing seat is placed at the edge of deep foundation pit, and the top seat is controlled to move left and right through the telescopic arm, so that the infrared sensor is convenient to disassemble, and the guide sleeve and anchor bolt can fix the whole device on the ground, the vibration sensor is used for detecting whether the ground is loose, and the damping sensor can reduce the influence of ground vibration on equipment stability during construction. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of a deformation alarm device for a deep foundation pit is provided for the utility model;

[0025] Figure 2 A front view of a deformation alarm device for a deep foundation pit is provided for the utility model;

[0026] Figure 3 A structure diagram of a sensor protection shell of a deformation alarm device for a deep foundation pit is provided for the utility model;

[0027] Figure 4 A sectional view of a top seat of a deformation alarm device for a deep foundation pit is provided for the utility model;

[0028] Figure 5 A split view of a fixing mechanism of a deformation alarm device for a deep foundation pit is provided for the utility model.

[0029] LEGEND:

[0030] 1, fixed seat; 2, top seat; 3, fixed mechanism; 301, telescopic arm; 302, guide sleeve; 303, gasket; 304, anchor bolt; 305, vibration sensor; 306, damping buffer; 4, top plate; 5, screw rod; 6, limit block; 7, sliding block; 8, sensor protection shell; 9, infrared sensor; 10, signal amplifier; 11, observation window; 12, annular slide rail; 13, rotary slide; 14, electric telescopic mast; 15, threaded hole; 16, screw; 17, maintenance cover; 18, pin shaft; 19, rotating shaft; 20, humidity sensor; 21, heater; 22, oil cup; 23, oil brush; 24, mounting seat; 25, powerful fan; 26, control console; 27, control panel. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Reference Figure 1 , Figure 3 and Figure 4The utility model provides a kind of deformation alarm device of deep foundation pit, including fixed seat 1 and top seat 2, the bottom end middle part of top seat 2 is fixedly connected with top plate 4, top plate 4 is used to fix screw rod 5, top plate 4 is fixedly connected with screw rod 5, infrared sensor 9 can be monitored by screw rod 5 to the pit wall around deep foundation pit, avoid detecting only in one direction, and produce monitoring dead angle, the bottom end of screw rod 5 is fixedly connected with limit block 6, limit block 6 is used to limit the position of slider 7, avoid to separate from screw rod 5, the bottom end middle part of top seat 2 is equipped with annular slide rail 12, the inner wall of annular slide rail 12 is slidably connected with rotary slide 13, by annular slide rail 12 and rotary slide 13, so that electric telescopic mast 14 can rotate around screw rod 5, the bottom end of rotary slide 13 is fixedly connected with electric telescopic mast 14, electric telescopic mast 14 is used to control sensor protection shell 8 to move up and down, increase the detection range of infrared sensor 9, the bottom end of electric telescopic mast 14 is fixedly connected with sensor protection shell 8, sensor protection shell 8 is used to protect infrared sensor 9, avoid to be interfered with by rockfall or dust, the inner bottom wall right side of sensor protection shell 8 is fixedly connected with infrared sensor 9, detect the deformation condition in deep foundation pit by infrared sensor 9, the front side of infrared sensor 9 is fixedly connected with signal amplifier 10, signal amplifier 10 is used to increase the detection range of infrared sensor 9, the right side of sensor protection shell 8 is fixedly connected with observation window 11, infrared sensor 9 can detect outside by observation window 11, avoid infrared sensor 9 to be directly exposed in outside, reduce the damage of outside environment to infrared sensor 9, the front side of sensor protection shell 8 is rotatably connected with overhauling cover 17, overhauling cover 17 can facilitate staff to overhaul the component in sensor protection shell 8, the outside of sensor protection shell (8) is provided with auxiliary assembly, the outside of fixed seat 1 is provided with fixed mechanism 3, fixed mechanism 3 is used to fix alarm device in deep foundation pit, the outside of top plate 4 and the bottom end of top seat 2 are all equipped with a plurality of threaded holes 15, the bottom of top plate 4 is screw-connected with a plurality of screws 16, the left end of the front side of sensor protection shell 8 is fixedly connected with pin shaft 18, the left end of the front side of overhauling cover 17 is fixedly connected with rotating shaft 19;

[0033] Specifically, the telescopic electric mast 14 is controlled by the control panel 27 to move up and down, thereby driving the sensor protection shell 8 to move up and down. Since the sensor protection shell 8 is fixedly connected with the sliding block 7, and the sliding block 7 is threadedly connected with the lead screw 5, when the telescopic electric mast 14 moves up and down, the sensor protection shell 8 starts to move around the lead screw 5 under the influence of the lead screw 5. Moreover, the top end of the telescopic electric mast 14 is connected with the rotary slide 13, which can rotate in the annular slide rail 12 when the telescopic electric mast 14 starts to rotate, so that the sensor protection shell 8 can rotate around the lead screw 5. When the sensor protection shell 8 moves up and down, the infrared sensor 9 can detect the inner wall of the deep foundation pit through the observation window 11 to collect deformation data. During the monitoring process, the position and height of the infrared sensor 9 can be adjusted at any time by controlling the telescopic electric mast 14 according to actual needs, so as to ensure the comprehensiveness and accuracy of the monitoring. The signal amplifier 10 enhances the signal strength and transmits it to the control panel 27. When the monitored data changes greatly, the control panel 27 and the alarm device on the device can timely remind the staff to take remedial measures.

[0034] With reference to Figure 1 , Figure 2 and Figure 5 , the fixing mechanism 3 comprises a telescopic arm 301, which enables the top base 2 to move left and right, facilitating the installation of parts at the bottom of the top base 2. The left side of the telescopic arm 301 is fixedly connected to the right side of the fixed seat 1. A plurality of guide sleeves 302 are fixed to the front and rear sides of the fixed seat 1. The plurality of guide sleeves 302 are used for guiding and fixing the anchor bolts 304. The top end of each guide sleeve 302 is fixedly connected with a gasket 303, which is used to reduce the damage to the connecting part when the device vibrates. The inner wall of each guide sleeve 302 is slidingly connected with an anchor bolt 304, which is used to fix the fixed seat 1 to the ground. The bottom of the fixed seat 1 is fixedly connected with a vibration sensor 305, which is used to detect the oscillation frequency of the ground and transmit the result to the control panel 27, so as to avoid sudden collapse of the ground. The bottom of the fixed seat 1 is fixedly connected with a plurality of damping buffers 306, which are used to alleviate the impact of ground vibration on the device and maintain the stability of the device.

[0035] Specifically, before the installation of the fixing mechanism 3, the ground around the deep foundation pit is first confirmed to be flat and free of obvious obstacles. The fixing base 1 is placed at the predetermined position, the anchor nails 304 are aligned with the guide sleeves 302 in turn, the anchor nails 304 are slowly inserted by using the guiding effect of the guide sleeves 302, and the installation is assisted by knocking the anchor nails 304 with a hammer, so that the anchor nails 304 penetrate into the ground. The gasket 303 is located at the top end of the guide sleeve 302 and can play a buffering role during installation, reducing damage to the connecting part of the guide sleeve 302 and the fixing base 1 when knocking. Until the anchor nails 304 are fixed in the ground, the preliminary fixation of the fixing base 1 and the ground is completed. During the operation of the device, the vibration sensor 305 monitors the ground oscillation frequency in real time. When abnormal oscillation is detected, the data is transmitted to the control panel 27 so that relevant personnel can take timely measures to avoid serious consequences caused by sudden ground collapse. At the same time, the multiple damping buffers 306 alleviate the impact of vibration on the device and maintain the stability of the device to ensure the normal operation of the entire deep foundation pit deformation alarm device. If it is necessary to adjust the position of the top base 2, the telescopic arm 301 is controlled to extend or retract, so that the top base 2 can move left and right to the appropriate position, facilitating the installation of the bottom parts.

[0036] With reference to Figure 1 , Figure 2 and Figure 3 , the auxiliary assembly includes a sliding block 7, the inner wall of the sliding block 7 is threadedly connected to the outer side of the lead screw 5, the sliding block 7 is used to connect the lead screw 5 and the sensor protection shell 8, so that the infrared sensor 9 can rotate around the lead screw 5, the inner wall of the sensor protection shell 8 is fixedly connected with a humidity sensor 20 at the top, the humidity sensor 20 is used to detect the humidity in the sensor protection shell 8, the inner wall of the sensor protection shell 8 is fixedly connected with a heater 21 at the left side, the heater 21 is used to heat the internal environment of the sensor protection shell 8 when the humidity in the sensor protection shell 8 is too low, so as to avoid the influence of humidity on the detection result of the infrared sensor 9, the top left side of the sensor protection shell 8 is fixedly connected with an oil cup 22, the oil cup 22 is used to hold lubricating oil, the left bottom of the oil cup 22 is fixedly connected with an oil brush 23, the lubricating oil in the oil cup 22 is evenly coated on the outer wall of the lead screw 5 through the oil brush 23, so as to reduce the friction between the lead screw 5 and the sliding block 7, the top right side of the sensor protection shell 8 is fixedly connected with a mounting seat 24, the mounting seat 24 is used to fix a powerful fan 25, the inner wall of the mounting seat 24 is fixedly connected with the powerful fan 25, the mist on the right side of the infrared sensor 9 is blown away by the powerful fan 25, so as to reduce the influence of heavy fog weather on the detection result, the top of the control console 26 is fixedly connected with a control panel 27, the control panel 27 is used to control the telescopic arm 301, the vibration sensor 305, the infrared sensor 9, the signal amplifier 10, the electric telescopic mast 14, the humidity sensor 20, the heater 21 and the powerful fan 25;

[0037] Specifically, when the infrared sensor 9 is running, the humidity sensor 20 detects the humidity in the sensor protection shell 8 and transmits data to the control panel 27. When the humidity is detected to be too high, the heater 21 is started to heat the internal environment of the sensor protection shell 8, thereby reducing the humidity and avoiding the influence of moisture on the detection results of the infrared sensor 9. When the humidity decreases to the normal range, the heater 21 is automatically turned off. The lubricating oil in the oil cup 22 is evenly applied to the outer wall of the lead screw 5 through the oil brush 23, thereby reducing the friction between the lead screw 5 and the sliding block 7. In heavy fog weather, the powerful fan 25 is started through the control panel 27. The powerful fan 25 blows away the fog on the right side of the infrared sensor 9, thereby reducing the interference of the fog on the detection results and ensuring the accuracy of the monitoring data.

[0038] Working principle: The control panel 27 controls the telescopic movement of the electric telescopic mast 14. Since the bottom end of the electric telescopic mast 14 is fixedly connected to the sensor protection shell 8, the sensor protection shell 8 moves up and down. Since the left side of the sensor protection shell 8 is fixedly connected to the sliding block 7, the sliding block 7 is threadedly connected to the lead screw 5. When the electric telescopic mast 14 telescopes, the sensor protection shell 8 rotates around the lead screw 5 under the action of the lead screw 5. At the same time, the top end of the electric telescopic mast 14 is connected to the rotary slide 13, and the rotary slide 13 can rotate in the annular slide rail 12, further ensuring the smoothness of the rotation of the sensor protection shell 8 around the lead screw 5. Through the telescoping and rotating of the electric telescopic mast 14, the position and height of the infrared sensor 9 can be flexibly adjusted, the monitoring of the deep foundation pit wall around can be realized, and the monitoring dead angle can be avoided. When the sensor protection shell 8 rotates around the lead screw 5, the infrared sensor 9 detects the inner wall of the deep foundation pit in real time through the observation window 11. The observation window 11 avoids direct exposure of the infrared sensor 9 to the outside, reduces the damage of falling stones and dust to the infrared sensor 9, and ensures that the signal can be stably and accurately transmitted out of the deep foundation pit. When the data changes sharply, the device alarms, and the staff can understand the details through the control panel 27 and make emergency treatment;

[0039] And, after the fixed seat 1 is placed in the predetermined position, the installation of the anchor 304 is started, the guide sleeve 302 provides the anchor 304 with an accurate insertion direction, guides the anchor 304 to enter the ground vertically and accurately, after the anchor 304 is inserted, can play a fixing role, prevent the anchor 304 from shaking or displacement in the ground, when the hammer is used to knock the anchor 304 for auxiliary installation, the gasket 303 can reduce the damage to the connecting part of the guide sleeve 302 and the fixed seat 1, ensure the firmness and stability of the connection, so that multiple anchors 304 can firmly fix the fixed seat 1 to the ground, complete the preliminary fixation of the alarm device, when the device operates, the vibration sensor 305 monitors the ground oscillation frequency in real time, once the ground oscillation frequency is detected to be abnormal, the vibration sensor 305 quickly transmits data to the control panel 27, so as to timely remind the staff, when the vibration is transmitted to the fixed seat 1, the damping buffer 306 buffers and disperses the impact force of the vibration, reduces the influence of the vibration on the whole alarm device, ensures that the precision parts in the device can work normally, guarantees the accuracy and reliability of the deep foundation pit deformation monitoring data, when installing the bottom part of the top seat 2, through the telescopic function of the telescopic arm 301, the left and right movement of the top seat 2 is realized, so that when installing the bottom part of the top seat 2, it can be more convenient to operate, improve the installation efficiency and accuracy.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A deformation alarm device for deep foundation pit, comprising a fixed seat (1) and a top seat (2), characterized in that: The middle bottom of the top base (2) is fixedly connected with a top plate (4), the bottom of the top plate (4) is fixedly connected with a lead screw (5), the bottom of the lead screw (5) is fixedly connected with a limiting block (6), the middle bottom of the top base (2) is provided with an annular slide rail (12), the bottom of the top base (2) is slidably connected with a rotary slide base (13), the bottom of the rotary slide base (13) is fixedly connected with an electric telescopic mast (14), the bottom of the electric telescopic mast (14) is fixedly connected with a sensor protection shell (8), the inner bottom wall of the sensor protection shell (8) is fixedly connected with an infrared sensor (9), the front side of the infrared sensor (9) is fixedly connected with a signal amplifier (10), the right side of the sensor protection shell (8) is provided with an observation window (11), the front side of the sensor protection shell (8) is rotatably connected with an inspection cover (17), the outer side of the sensor protection shell (8) is provided with an auxiliary assembly, the outer side of the fixed seat (1) is provided with a fixing mechanism (3), and the fixing mechanism (3) is used for fixing the alarm device outside the deep foundation pit.

2. The deformation alarm device for deep foundation pit according to claim 1, characterized in that: The fixing mechanism (3) comprises a telescopic arm (301), the left side of the telescopic arm (301) is fixedly connected to the right side of the fixed seat (1), a plurality of guide sleeves (302) are fixedly arranged on the front and back sides of the fixed seat (1), the top ends of the plurality of guide sleeves (302) are fixedly connected with a plurality of gaskets (303), the inner walls of the plurality of guide sleeves (302) are slidably connected with a plurality of anchor nails (304), the bottom of the fixed seat (1) is fixedly connected with a vibration sensor (305), and the bottom of the fixed seat (1) is fixedly connected with a plurality of damping buffers (306).

3. The deformation alarm device for deep foundation pit according to claim 1, characterized in that: The auxiliary assembly comprises a sliding block (7), the inner wall of the sliding block (7) is threadedly connected to the outer side of the lead screw (5), the right side of the sliding block (7) is fixedly connected with the left side of the outer wall of the sensor protection shell (8), the inner wall top of the sensor protection shell (8) is fixedly connected with a humidity sensor (20), and the inner wall left side of the sensor protection shell (8) is fixedly connected with a heater (21).

4. The deformation alarm device for deep foundation pit according to claim 1, characterized in that: The front left end of the sensor protection shell (8) is fixedly connected with a pin shaft (18), and the front left end of the inspection cover (17) is fixedly connected with a rotating shaft (19).

5. The deformation alarm device for deep foundation pit according to claim 1, characterized in that: The outer side of the top plate (4) and the bottom end of the top base (2) are provided with a plurality of threaded holes (15), and the bottom of the top plate (4) is threadedly connected with a plurality of screws (16).

6. The deformation alarm device for deep foundation pit according to claim 1, characterized in that: The top left side of the sensor protection shell (8) is fixedly connected with an oil cup (22), and the left bottom of the oil cup (22) is fixedly connected with an oil brush (23).

7. The deformation alarm device for deep foundation pit according to claim 1, characterized in that: The top right side of the sensor protection shell (8) is fixedly connected with a mounting seat (24), and the inner wall of the mounting seat (24) is fixedly connected with a powerful fan (25).

8. The deformation alarm device for deep foundation pit according to claim 1, characterized in that: The top front side of the fixed seat (1) is fixedly connected with a control console (26), and the top of the control console (26) is fixedly connected with a control panel (27).

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