Building supervision foundation pit monitoring device

Abstract

The invention belongs to the technical field of foundation pit monitoring, and particularly relates to a building supervision foundation pit monitoring device which comprises a supporting assembly, a photoelectric sensor and a displacement detection mechanism are arranged on the supporting assembly, an auxiliary detection assembly is arranged on the displacement detection mechanism, and the auxiliary detection assembly comprises a protective shell. A motor is fixedly connected to the outer wall of the protective shell, an output shaft of the motor is fixedly connected with a first synchronous wheel, a cleaning assembly is arranged on the outer wall of the protective shell, and a vibration assembly is arranged on the cleaning assembly. The building supervision foundation pit monitoring device can effectively clean the outer wall of a straight rod through a synchronous wheel system driven by a motor in combination with a scraping plate controlled by an electric telescopic rod, impurity accumulation is prevented from affecting the accuracy of displacement detection, meanwhile, the scraping plate can be stored in a fixing sleeve when not in use, impurity attachment caused by long-term exposure is avoided, and the service life of the device is prolonged. And the cleaning effect and the service life of the scraping plate are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit monitoring, and in particular to a construction supervision foundation pit monitoring device. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. In related technologies, in order to avoid various problems caused by foundation pit collapse, it is usually necessary to use total stations and other equipment to perform deformation and displacement detection on the side walls of the foundation pit at regular intervals to promptly detect the precursors of foundation pit collapse and prompt relevant staff to respond.

[0003] At present, in the prior art, a Chinese patent with announcement number CN113789822B discloses a foundation pit monitoring device. When the side wall of the foundation pit displaces inward, the abutment of the device is driven to move toward the direction close to the support rod. The abutment drives the compression spring to compress, and the pressure detection signal output by the pressure detection component increases. When the pressure detection signal is greater than the reference signal, the warning module alarms, and no human intervention is required, thereby realizing all-weather detection of the side wall of the foundation pit.

[0004] However, when the device is actually used, the sliding of the sliding rod in the connecting rod is an important step in monitoring the side wall displacement of the foundation pit. However, the device is placed outdoors for a long time, and during the construction process, more impurities will adhere to the outer wall of the sliding rod, which will affect the sliding of the sliding rod in the connecting rod, thereby affecting the monitoring results. In view of this, a construction supervision foundation pit monitoring device is proposed. Summary of the invention

[0005] The main purpose of the present invention is to provide a construction supervision foundation pit monitoring device that can solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the construction supervision foundation pit monitoring device proposed in the present invention comprises a support assembly, on which a photoelectric sensor and a displacement detection mechanism are arranged, and on which an auxiliary detection assembly is arranged, and the auxiliary detection assembly comprises:

[0007] A protective shell, wherein a motor is fixedly connected to the outer wall of the protective shell, a synchronous wheel 1 is fixedly connected to the output shaft of the motor, a cleaning component is arranged on the outer wall of the protective shell, and a vibration component is arranged on the cleaning component;

[0008] A second synchronous wheel, wherein the second synchronous wheel is rotatably connected to the inner wall of the protective shell, and the second synchronous wheel is connected to the first synchronous wheel through a synchronous belt transmission;

[0009] A fixed plate, the fixed plate being fixedly connected to the outer wall of the second synchronous wheel;

[0010] The scraper is slidably connected in a fixed sleeve, and an electric telescopic rod is fixedly connected in the fixed sleeve. The telescopic end of the electric telescopic rod is fixedly connected to the scraper, and the output shaft of the motor rotates to drive the synchronous wheel 1 to rotate, and then under the action of the synchronous belt, the synchronous wheel 2 is rotated to drive the scraper to clean the outer wall of the straight rod to prevent the subsequent sliding of the straight rod from being affected. At the same time, under the action of the electric telescopic rod, the scraper can be stored in the fixed sleeve, thereby preventing the scraper from being exposed to the outside for a long time and being attached to impurities, thereby ensuring the subsequent cleaning effect of the subsequent scraper.

[0011] Preferably, the cleaning assembly includes an elliptical wheel, which is fixed to a synchronous wheel through a connecting rod, and the connecting rod passes through a protective shell and is rotatably connected to the protective shell. The outer wall of the elliptical wheel abuts against a T rod, and a positioning rod is fixedly connected to the outer wall of the protective shell. The positioning rod is slidably connected to a straight slot of the T rod, and the positioning rod can guide the T rod to ensure the sliding stability of the T rod.

[0012] Preferably, the end of the T-rod away from the elliptical wheel is hinged with a hinged rod, and the end of the hinged rod away from the T-rod is hinged with a piston rod, the piston rod is connected in a sealed chamber, the piston rod and the sealed chamber are elastically connected by a return spring, and a one-way dust-proof inlet and a one-way air outlet are provided on the sealed chamber, and the one-way air outlet is connected to the connecting pipe.

[0013] Preferably, the rotation of the elliptical wheel drives the T-rod to move, and the hinged rod drives the piston rod to move, so that the gas in the sealed chamber can be discharged from the one-way air outlet, and the outside air enters the sealed chamber through the one-way dustproof inlet. The air discharged from the one-way air outlet can enter the connecting pipe, which is convenient for the subsequent cleaning of impurities in the gap between the protective shell and the straight rod, further improving the cleaning effect, and further reducing the impact of the sliding of the straight rod.

[0014] Preferably, the vibration assembly includes an L-rod, which is fixedly connected to the outer wall of the piston rod, and one end of the L-rod away from the piston rod is fixedly connected to a round rod, which is slidably connected in a sliding groove of the knocking rod, and the knocking rod is penetrated by the second positioning rod and is rotatably connected to the second positioning rod.

[0015] Preferably, during the movement of the piston rod compression return spring, the round rod slides in the sliding groove of the knocking rod, and the knocking rod rotates around the second positioning rod away from the one-way dustproof inlet. After the return spring drives the piston rod to reset, the piston rod drives the L rod to move, causing the round rod to slide in the sliding groove of the knocking rod, and the knocking rod rotates around the second positioning rod. The knocking rod knocks and vibrates the one-way dustproof inlet, thereby causing dust attached to the one-way dustproof inlet to fall off, thereby ensuring the normal use of the one-way dustproof inlet.

[0016] Preferably, the support assembly includes a fixing seat, a support rod is fixedly connected to the upper side of the fixing seat, a mounting seat is fixedly connected to the top of the support rod, the photoelectric sensor is mounted on the mounting seat, and a guide rod is fixedly connected to the top of the support rod.

[0017] Preferably, the displacement detection mechanism includes a guide sleeve, a sleeve rod is fixedly connected to the outer wall of the guide sleeve, a straight rod is sleeved on the sleeve rod, an end of the straight rod away from the sleeve rod is fixedly connected to a fixed block, a fixed rod is fixedly connected to the outer wall of the fixed block, and a pressure plate is hinged on the end of the fixed rod away from the fixed block.

[0018] Preferably, the guide sleeve is slidably connected to the guide rod, and the sleeve rod is fixed to the protective shell. Through the use of the guide sleeve and the guide rod, when the fixed seat sinks, the guide sleeve can slide on the guide rod without affecting the displacement detection mechanism. Through the use of the photoelectric sensor, when the fixed seat sinks, the distance of the guide sleeve can be detected, and the settlement distance can be detected, thereby realizing the detection of foundation pit settlement.

[0019] Preferably, a pressure sensor is fixedly installed in the inner wall of the sleeve rod, a slip ring is slidably connected to the inner wall of the sleeve rod, the pressure sensor and the slip ring are elastically connected via a connecting spring, an air cavity is opened in the inner wall of the sleeve rod, a nozzle is opened on the air cavity, and the connecting pipe is connected to the air cavity. By using the pressure sensor, when the straight rod slides in the sleeve rod, it can drive the slip ring to compress the connecting spring, and then the reading of the pressure sensor changes, and the displacement of the straight rod is detected according to the elastic coefficient of the connecting spring, thereby realizing the monitoring of the displacement of the side wall of the foundation pit.

[0020] The present invention provides a construction supervision foundation pit monitoring device, which has the following beneficial effects:

[0021] (1) The construction supervision foundation pit monitoring device uses a synchronous wheel system driven by a motor and a scraper controlled by an electric telescopic rod. The device can effectively clean the outer wall of the straight rod to prevent the accumulation of impurities that affect the accuracy of displacement detection. At the same time, the scraper can be stored in a fixed sleeve when not in use to avoid the adhesion of impurities caused by long-term exposure, thereby ensuring the cleaning effect and the service life of the scraper.

[0022] (2) The construction supervision foundation pit monitoring device realizes automatic cleaning of impurities in the gap between the protective shell and the straight rod by utilizing the linkage mechanism of the elliptical wheel, T-rod, hinged rod and piston rod, combined with the design of the sealed chamber, one-way dustproof inlet and one-way air outlet. This not only further improves the cleaning effect, but also reduces the influence of impurities on the sliding of the straight rod, thereby ensuring the stability of displacement detection.

[0023] (3) The construction supervision foundation pit monitoring device uses a vibration component. After the reset spring drives the piston rod to reset, the piston rod drives the L rod to move, so that the round rod slides in the slide groove of the knocking rod. The knocking rod rotates around the positioning rod twice, and the knocking rod knocks and vibrates the one-way dustproof inlet, thereby causing the dust attached to the one-way dustproof inlet to fall off, thereby ensuring the normal ventilation function of the dustproof inlet, enhancing the self-maintenance capability of the device, and reducing the need for manual cleaning.

[0024] (4) The construction supervision foundation pit monitoring device can monitor the settlement and side wall displacement of the foundation pit in real time through various sensors such as photoelectric sensors and pressure sensors. The coordination of the guide sleeve and the guide rod ensures that the displacement can be accurately measured even in the case of settlement. This comprehensive monitoring capability provides key data support for construction supervision and helps to timely discover and warn of potential safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the separation structure of the support assembly and the displacement detection mechanism of the present invention;

[0028] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0029] Figure 4 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention;

[0030] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of A;

[0031] Figure 6 It is a schematic diagram of the structure of the auxiliary detection component, the cleaning component and the vibration component of the present invention;

[0032] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of middle B;

[0033] Figure 8 It is a schematic diagram of the cross-sectional structure of the displacement detection mechanism of the present invention;

[0034] Fig. 9 For the present invention Figure 8 Schematic diagram of the C structure.

[0035] Description of Figure Numbers:

[0036] 1. Support assembly; 2. Photoelectric sensor; 3. Displacement detection mechanism; 4. Auxiliary detection assembly; 5. Cleaning assembly; 6. Vibration assembly; 101. Fixed seat; 102. Support rod; 103. Mounting seat; 104. Guide rod; 31. Guide sleeve; 32. Sleeve rod; 33. Straight rod; 34. Fixed block; 35. Fixed rod; 36. Press plate; 321. Pressure sensor; 322. Slip ring; 323. Air cavity; 324. Nozzle; 4 1. Protective shell; 42. Motor; 43. Synchronous wheel 1; 44. Synchronous belt; 45. Synchronous wheel 2; 46. Fixed plate; 47. Fixed sleeve; 48. Scraper; 49. Electric telescopic rod; 51. Elliptical wheel; 52. T rod; 53. Positioning rod 1; 54. Articulated rod; 55. Piston rod; 56. Sealed chamber; 57. One-way dustproof inlet; 58. Connecting pipe; 61. L rod; 62. Round rod; 63. Knocking rod; 64. Positioning rod 2.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 9 The present invention proposes a construction supervision foundation pit monitoring device, comprising a support component 1, a photoelectric sensor 2 and a displacement detection mechanism 3 are arranged on the support component 1, and an auxiliary detection component 4 is arranged on the displacement detection mechanism 3.

[0040] In the embodiment of the present invention, in order to detect the displacement of the side wall of the foundation pit, specifically, the displacement detection mechanism 3 includes a guide sleeve 31, a sleeve rod 32 is fixedly connected to the outer wall of the guide sleeve 31, a straight rod 33 is sleeved on the sleeve rod 32, a fixed block 34 is fixedly connected to the end of the straight rod 33 away from the sleeve rod 32, a fixed rod 35 is fixedly connected to the outer wall of the fixed block 34, a pressure sensor 321 is fixedly installed in the inner wall of the sleeve rod 32, a slip ring 322 is slidably connected to the inner wall of the sleeve rod 32, and the slip ring 322 Fixed to the straight rod 33, the pressure sensor 321 is elastically connected to the slip ring 322 through a connecting spring, and the pressure plate 36 is fixed to the side wall of the foundation pit through an anchor rod. When the side wall of the foundation pit moves, the straight rod 33 is driven to move, and then the slip ring 322 squeezes the connecting spring to change the pressure sensor 321. According to the elastic coefficient of the connecting spring, the displacement of the straight rod 33 is detected, thereby realizing the monitoring of the displacement of the side wall of the foundation pit. At the same time, the fixing rod 35 is hinged to the pressure plate 36, and the angle of the pressure plate 36 can be adjusted, thereby improving the practicability of the device and being suitable for different foundation pits.

[0041] Furthermore, in order to be able to detect the settlement of the foundation pit, specifically, the support assembly 1 includes a fixed seat 101, a support rod 102 is fixedly connected to the upper side of the fixed seat 101, a mounting seat 103 is fixedly connected to the top of the support rod 102, a photoelectric sensor 2 is installed on the mounting seat 103, a guide rod 104 is fixedly connected to the top of the support rod 102, and a guide sleeve 31 is slidably connected to the guide rod 104. Through the use of the photoelectric sensor 2, the fixed seat 101 can detect the distance of the guide sleeve 31 when settlement occurs, and then detect the settlement distance, thereby realizing the detection of foundation pit settlement.

[0042] In the embodiment of the present invention, in order to prevent the accumulation of impurities from affecting the sliding of the straight rod 33, specifically, the auxiliary detection component 4 includes a protective shell 41, a synchronous wheel 2 45, a fixed disk 46 and a scraper 48, the sleeve rod 32 is fixed to the protective shell 41, the outer wall of the protective shell 41 is fixedly connected to a motor 42, the output shaft of the motor 42 is fixedly connected to a synchronous wheel 1 43, a cleaning component 5 is provided on the outer wall of the protective shell 41, and a vibration component 6 is provided on the cleaning component 5, the synchronous wheel 2 45 is rotatably connected to the inner wall of the protective shell 41, the synchronous wheel 2 45 and the synchronous wheel 1 43 are connected by a synchronous belt 44, the fixed disk 46 is fixedly connected to the outer wall of the synchronous wheel 2 45, and the scraper 48 is slidably connected. It is connected to the fixed sleeve 47, and an electric telescopic rod 49 is fixedly connected to the fixed sleeve 47. The telescopic end of the electric telescopic rod 49 is fixedly connected to the scraper 48, and the output shaft of the motor 42 rotates to drive the synchronous wheel 1 43 to rotate, and then under the action of the synchronous belt 44, the synchronous wheel 2 45 is rotated, and then the fixed plate 46 rotates, driving the scraper 48 to clean the outer wall of the straight rod 33 to prevent the subsequent sliding of the straight rod 33 from being affected, and to prevent the accumulation of impurities from affecting the accuracy of displacement detection. At the same time, under the action of the electric telescopic rod 49, the scraper 48 can be stored in the fixed sleeve 47, thereby preventing the scraper 48 from being exposed to the outside for a long time and being attached to impurities, thereby ensuring the subsequent cleaning effect of the scraper 48.

[0043] Furthermore, in order to be able to clean the impurities in the gap between the protective shell 41 and the straight rod 33, specifically, the cleaning component 5 includes an elliptical wheel 51, the elliptical wheel 51 and the synchronous wheel 43 are fixed by a connecting rod, the connecting rod passes through the protective shell 41 and is rotatably connected to the protective shell 41, the outer wall of the elliptical wheel 51 is abutted with a T rod 52, the outer wall of the protective shell 41 is fixedly connected with a positioning rod 53, the positioning rod 53 is slidably connected in the straight groove of the T rod 52, the end of the T rod 52 away from the elliptical wheel 51 is hinged with a hinge rod 54, the end of the hinge rod 54 away from the T rod 52 is hinged with a piston rod 55, the piston rod 55 is connected to the sealing chamber 56, the piston rod 55 and the sealing chamber 56 are elastically connected by a return spring, the sealing chamber 56 is provided with a one-way dustproof inlet 57 and a one-way air outlet, and the one-way air outlet is connected to the connecting pipe 58, and the sleeve rod An air cavity 323 is provided in the inner wall of 32, and a nozzle 324 is provided on the air cavity 323. The connecting pipe 58 is connected with the air cavity 323, and the elliptical wheel 51 is driven to rotate by the output shaft of the motor 42. The rotation of the elliptical wheel 51 drives the T-rod 52 to move, and then the hinged rod 54 drives the piston rod 55 to move. The piston rod 55 squeezes the gas in the sealing chamber 56 to move, so that the gas in the sealing chamber 56 can be discharged from the one-way air outlet, and the outside air enters the sealing chamber 56 through the one-way dustproof inlet 57. The air discharged from the one-way air outlet can enter the connecting pipe 58, and then enter the air cavity 323, and then be ejected from the nozzle 324, thereby realizing automatic cleaning of impurities in the gap between the protective shell 41 and the straight rod 33, which not only further improves the cleaning effect, but also reduces the influence of impurities on the sliding of the straight rod 33, thereby ensuring the stability of displacement detection.

[0044] Furthermore, the vibration assembly 6 includes an L rod 61, which is fixedly connected to the outer wall of the piston rod 55. The end of the L rod 61 away from the piston rod 55 is fixedly connected to a round rod 62. The round rod 62 is slidably connected in the slide groove of the knocking rod 63. The knocking rod 63 is penetrated by the positioning rod 64 and is rotatably connected to the positioning rod 64. During the movement of the piston rod 55 compressing the reset spring, the round rod 62 slides in the slide groove of the knocking rod 63, and the knocking rod 63 rotates around the positioning rod 64 away from the one-way dustproof inlet 57. After the reset spring drives the piston rod 55 to reset, the piston rod 55 drives the L rod 61 to move, so that the round rod 62 slides in the slide groove of the knocking rod 63, and the knocking rod 63 rotates around the positioning rod 64. The knocking rod 63 knocks and vibrates the one-way dustproof inlet 57, thereby causing dust attached to the one-way dustproof inlet 57 to fall off, thereby ensuring the normal use of the one-way dustproof inlet 57.

[0045] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods, and no specific restrictions are made here.

[0046] When in use, first fix the fixing seat 101 on the foundation pit, and fix the pressure plate 36 to the side wall of the foundation pit through the anchor rod. When the side wall of the foundation pit moves, the straight rod 33 is driven to move, and then the slip ring 322 squeezes the connecting spring, so that the pressure sensor 321 changes. According to the elastic coefficient of the connecting spring, the displacement of the straight rod 33 is detected, and then the displacement of the side wall of the foundation pit is monitored. When the foundation pit settles, the fixing seat 101 also settles, and the guide sleeve 31 slides on the guide rod 104. Through the use of the photoelectric sensor 2, the distance of the guide sleeve 31 is detected, and then the settlement distance is detected, so as to detect the settlement of the foundation pit;

[0047] At the same time, when cleaning the outer wall of the straight rod 33, the output shaft of the motor 42 rotates to drive the synchronous wheel 1 43 to rotate, and then the synchronous wheel 2 45 rotates under the action of the synchronous belt 44, and then the fixed plate 46 rotates to drive the scraper 48 to clean the outer wall of the straight rod 33. After the cleaning is completed, the scraper 48 can be stored in the fixed sleeve 47 by starting the electric telescopic rod 49;

[0048] At the same time, the output shaft of the motor 42 drives the elliptical wheel 51 to rotate, and the rotation of the elliptical wheel 51 drives the T-bar 52 to move, and then the hinged rod 54 drives the piston rod 55 to move, and the piston rod 55 squeezes the gas in the sealing chamber 56 to move, so that the gas in the sealing chamber 56 can be discharged from the one-way air outlet, and the outside air enters the sealing chamber 56 through the one-way dustproof inlet 57. The air discharged from the one-way air outlet can enter the connecting pipe 58, and then enter the air cavity 323, and then be ejected from the nozzle 324, thereby realizing automatic cleaning of impurities in the gap between the protective shell 41 and the straight rod 33;

[0049] At the same time, after the reset spring drives the piston rod 55 to reset, the piston rod 55 drives the L rod 61 to move, so that the round rod 62 slides in the slide groove of the knocking rod 63, and the knocking rod 63 rotates around the positioning rod 64. The knocking rod 63 knocks and vibrates the one-way dustproof inlet 57, thereby causing the dust attached to the one-way dustproof inlet 57 to fall off.

[0050] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A construction supervision foundation pit monitoring device, comprising a support assembly (1), characterized in that: The support component (1) is provided with a photoelectric sensor (2) and a displacement detection mechanism (3), the displacement detection mechanism (3) is provided with an auxiliary detection component (4), and the auxiliary detection component (4) comprises: A protective shell (41), a motor (42) is fixedly connected to the outer wall of the protective shell (41), an output shaft of the motor (42) is fixedly connected to a synchronous wheel (43), a cleaning component (5) is arranged on the outer wall of the protective shell (41), and a vibration component (6) is arranged on the cleaning component (5); A second synchronous wheel (45), the second synchronous wheel (45) is rotatably connected to the inner wall of the protective shell (41), and the second synchronous wheel (45) is connected to the first synchronous wheel (43) through a synchronous belt (44); A fixed disk (46), wherein the fixed disk (46) is fixedly connected to the outer wall of the second synchronous wheel (45); A scraper (48) is slidably connected in a fixed sleeve (47), an electric telescopic rod (49) is fixedly connected in the fixed sleeve (47), and the telescopic end of the electric telescopic rod (49) is fixedly connected to the scraper (48).

2. The construction supervision foundation pit monitoring device according to claim 1 is characterized in that: The cleaning assembly (5) comprises an elliptical wheel (51), the elliptical wheel (51) and a synchronous wheel (43) being fixed via a connecting rod, the connecting rod passing through the protective shell (41) and being rotatably connected to the protective shell (41), the outer wall of the elliptical wheel (51) being in contact with a T-bar (52), the outer wall of the protective shell (41) being fixedly connected with a positioning rod (53), the positioning rod (53) being slidably connected in a straight slot of the T-bar (52).

3. The construction supervision foundation pit monitoring device according to claim 2 is characterized in that: One end of the T-rod (52) away from the elliptical wheel (51) is hingedly connected to a hinged rod (54), and one end of the hinged rod (54) away from the T-rod (52) is hingedly connected to a piston rod (55). The piston rod (55) is connected to a sealing chamber (56). The piston rod (55) and the sealing chamber (56) are elastically connected via a return spring. A one-way dustproof inlet (57) and a one-way air outlet are provided on the sealing chamber (56), and the one-way air outlet is communicated with a connecting pipe (58).

4. The construction supervision foundation pit monitoring device according to claim 3 is characterized in that: The rotation of the elliptical wheel (51) drives the T-rod (52) to move, and the hinged rod (54) drives the piston rod (55) to move, so that the gas in the sealed chamber (56) can be discharged from the one-way air outlet, and the outside air enters the sealed chamber (56) through the one-way dustproof inlet (57).

5. The construction supervision foundation pit monitoring device according to claim 3 is characterized in that: The vibration assembly (6) comprises an L-rod (61), wherein the L-rod (61) is fixedly connected to the outer wall of the piston rod (55), and one end of the L-rod (61) away from the piston rod (55) is fixedly connected to a round rod (62), wherein the round rod (62) is slidably connected in a sliding groove of a knocking rod (63), and the knocking rod (63) is penetrated by a second positioning rod (64) and is rotationally connected to the second positioning rod (64).

6. The construction supervision foundation pit monitoring device according to claim 5 is characterized in that: During the movement of the piston rod (55) compressing the return spring, the round rod (62) slides in the sliding groove of the knocking rod (63), and the knocking rod (63) rotates around the second positioning rod (64) away from the one-way dustproof inlet (57).

7. The construction supervision foundation pit monitoring device according to claim 1 is characterized in that: The support assembly (1) comprises a fixing seat (101), the upper side of the fixing seat (101) is fixedly connected to a support rod (102), the top of the support rod (102) is fixedly connected to a mounting seat (103), the photoelectric sensor (2) is mounted on the mounting seat (103), and the top of the support rod (102) is fixedly connected to a guide rod (104).

8. The construction supervision foundation pit monitoring device according to claim 7 is characterized in that: The displacement detection mechanism (3) comprises a guide sleeve (31), a sleeve rod (32) is fixedly connected to the outer wall of the guide sleeve (31), a straight rod (33) is sleeved on the sleeve rod (32), an end of the straight rod (33) away from the sleeve rod (32) is fixedly connected to a fixed block (34), a fixed rod (35) is fixedly connected to the outer wall of the fixed block (34), and an end of the fixed rod (35) away from the fixed block (34) is hingedly connected to a pressure plate (36).

9. The construction supervision foundation pit monitoring device according to claim 8, characterized in that: The guide sleeve (31) is slidably connected to the guide rod (104), and the sleeve rod (32) is fixed to the protective shell (41).

10. The construction supervision foundation pit monitoring device according to claim 9, characterized in that: A pressure sensor (321) is fixedly installed in the inner wall of the sleeve rod (32); a slip ring (322) is slidably connected to the inner wall of the sleeve rod (32); the pressure sensor (321) and the slip ring (322) are elastically connected via a connecting spring; an air cavity (323) is provided in the inner wall of the sleeve rod (32); a nozzle (324) is provided on the air cavity (323); and the connecting pipe (58) is in communication with the air cavity (323).

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