A foundation pit monitoring system for construction engineering

Abstract

The invention discloses a foundation pit monitoring system for construction engineering, which relates to the technical field of construction engineering, and comprises a base, wherein connecting holes are arranged at the left and right ends of the bottom of the base; a control component is fixedly connected inside the base, and the control component is used to adjust the height of a monitoring camera; a servo motor is fixedly connected inside the base, and the output shaft of the servo motor is fixedly connected to the center of a circle of a winding roller, and a counterweight block slides downward in contact with the side wall of the foundation pit through a roller on the side wall, and the counterweight block slides downward and indirectly drives the monitoring camera to move downward to adjust the height through a connecting rod, so that when the depth of the foundation pit changes, the height of the monitoring camera can be automatically adjusted to ensure the best monitoring viewing angle, which avoids the need for frequent manual adjustment of the monitoring camera, and saves manpower and time.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, in particular to a foundation pit monitoring system for construction engineering. Background Art

[0002] Publication (announcement) No. CN215165430U discloses a construction engineering foundation pit monitoring device, which relates to the field of construction. The construction engineering foundation pit monitoring device comprises a column, the bottom of the column is fixedly connected with a mounting plate, the top of the column is movably hinged with a rotating support rod, the top side of the column is provided with a clamping assembly, the clamping assembly is movably clamped with the bottom end of the rotating support rod, and the top of the rotating support rod is fixedly connected with a fixing seat.

[0003] Publication (announcement) number CN218116583U discloses a construction engineering foundation pit monitoring device, including a fixed rod, a movable lifting rod is arranged inside the top of the fixed rod, a monitoring camera is fixedly connected to one side of the top of the lifting rod, guide grooves are symmetrically provided on the surface of the lifting rod, guide blocks are symmetrically fixed on the inner wall of the fixed rod, the guide blocks are engaged with the guide grooves, a slide groove is penetrated through the inner wall of the fixed rod, and limiting grooves are equidistantly provided on one side of the inner wall of the slide groove.

[0004] In the above-mentioned prior art, the limit rod is driven by an operating handle to move from the inside of the limit groove to the inside of the slide groove, and then the operating handle is lifted to drive the limit rod to slide inside the slide groove, and at the same time, the lifting rod is driven to move upward inside the fixed rod to change the height of the monitoring camera. The operation steps are relatively cumbersome, and the cycle consumed during the excavation of the foundation pit is relatively long. The staff needs to repeatedly adjust the height of the monitoring camera according to the depth of the foundation pit, which increases the workload of the staff. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a foundation pit monitoring system for construction engineering.

[0006] The present invention is implemented by constructing a foundation pit monitoring system for construction engineering, the device comprises a base, and connection holes are arranged at the left and right ends of the bottom of the base; a control component is fixedly connected in the base, and the control component is used to adjust the height of the monitoring camera;

[0007] A servo motor is fixedly connected inside the base, and the output shaft of the servo motor is fixedly connected to the center of the winding roller, and the two sets of winding rollers are connected as a whole through a worm, the worm is meshed with the worm wheel, and the center of the worm wheel is fixedly connected to the gear. A connecting rod is slidably connected to the inner wall of the base, and a monitoring camera is fixedly connected to the top of the connecting rod. Electromagnetic springs are fixedly connected to the upper and lower ends of the connecting rod, and the other end of the electromagnetic spring is fixedly connected to the rack, and the end of the rack away from the electromagnetic spring is meshed with the gear, and sliding rods are fixedly connected to the upper and lower ends of the rack, and the sliding rods slide through the inner wall of the connecting rod and are fixedly connected to the card plate, and a plurality of limit rods are equidistantly provided on the card plate, and a plurality of card slots are provided on the inner wall of the base;

[0008] The side wall of the retracting rod is retracted with a traction rope, and the other ends of the two groups of traction ropes slide through the side wall of the base and are fixedly connected with the counterweight block.

[0009] In a feasible embodiment, a protective component is fixedly connected to the top of the base, and the protective component includes a support rod. The top of the base is fixedly connected to the support rod, and a push rod is slidably connected inside the support rod. The side wall of the push rod is fixedly connected to one end of the return spring, and the other end of the return spring is fixedly connected to the support rod.

[0010] In a feasible embodiment, the side walls of the support rod are rotatably connected to two groups of glass baffles, the side walls of the glass baffles are rotatably connected to the connecting rod, the other end of the connecting rod away from the glass baffle is rotatably connected to the side wall of the push rod, and the bottom of the push rod passes through the support rod and is fixedly connected to the contact rod.

[0011] In a feasible implementation, a roller is rotatably connected inside the counterweight block, and the center of the roller is fixedly connected to the disc through a connecting shaft. A hollow area is provided at the center of the disc, and an electromagnet is inserted into the hollow area. The electromagnet is fixedly connected to the inner wall of the counterweight block through an L-plate.

[0012] In a feasible embodiment, a groove connected to the hollow area is embedded in the disk, the inner wall of the groove is fixedly connected to the extrusion spring, the other end of the extrusion spring is fixedly connected to the magnetic rod, a screw is fixedly connected to the top of the magnetic rod, the screw is threadedly connected to the bottom inner area of ​​the receiving frame, the side wall of the receiving frame away from the magnetic rod is connected to the insertion block through a telescopic band, and the top side wall of the receiving frame is fixedly connected to an isolation membrane.

[0013] In a feasible implementation, the other end of the isolation membrane is connected to the insertion block, the top of the receiving frame is fixedly connected to the guide telescopic rod, and the movable end of the guide telescopic rod is fixedly connected to the inner wall of the insertion block.

[0014] In a feasible implementation, an auxiliary rack is fixedly connected to the inner wall of the insertion block, the auxiliary rack is slidably connected to the inner wall of the receiving frame, the auxiliary rack meshes to drive the auxiliary gear to rotate with the inner wall of the receiving frame, and a one-way bearing is provided in the receiving frame.

[0015] In a feasible implementation, the inner ring of the one-way bearing is fixedly connected to the center of the auxiliary gear, the outer ring of the one-way bearing is fixedly connected to the center of the pulley, the upper and lower ends of the receiving frame are rotatably connected to the pulleys, the side walls of the two sets of pulleys are transmission-connected with belts, and the side walls of the belts are equidistantly fixedly connected to isolation plates.

[0016] The present invention has the following advantages: The present invention provides a foundation pit monitoring system for construction engineering through improvement, which has the following improvements compared with similar equipment:

[0017] The foundation pit monitoring system for construction projects described in the present invention can control the servo motor to drive the winding roller to rewind the traction rope to drive the counterweight block to reset upward, so that the push rod drives two sets of connecting rods to drive the glass baffle to rotate downward and wrap the monitoring camera, effectively protecting the monitoring camera from possible damage such as dust, splashing objects, etc. in the construction environment, ensuring the safety and normal use of the monitoring camera.

[0018] The present invention describes a foundation pit monitoring system for construction projects, in which a counterweight block contacts the side wall of the foundation pit through rollers on the side wall and slides downward. The counterweight block slides downward and indirectly drives the monitoring camera to move downward to adjust the height through a connecting rod. When the depth of the foundation pit changes, the height of the monitoring camera can be automatically adjusted to ensure the best monitoring viewing angle. This avoids the need for frequent manual adjustment of the monitoring camera, saving manpower and time.

[0019] The present invention discloses a foundation pit monitoring system for construction engineering, wherein a rack pushes a card plate into a card slot, so that a connecting rod position is restricted and fixed, and a monitoring camera position is fixed. When soil sampling is performed, the monitoring position and angle of the camera are not affected, thereby ensuring the accuracy and continuity of the monitoring data.

[0020] The present invention provides a foundation pit monitoring system for construction projects, and while the insertion block moves inward, the isolation plate is indirectly driven to move by a belt, so that the isolation plate in the other group moves to the area below the receiving insertion block in the receiving frame to prepare for the next sampling. During the soil collection process, soil at different heights of the foundation pit is stored in different storage spaces to achieve separate storage, thereby reducing the need for manual operation, and reducing labor costs and operational risks.

[0021] The present invention discloses a foundation pit monitoring system for construction projects. When the counterweight block moves, the roller contacts and rolls with the side wall of the foundation pit. The roller drives the disc to rotate through the connecting shaft. The disc drives the insertion block to contact with the soil on the side of the foundation pit by squeezing. The insertion block is squeezed and compressed by the receiving spring to move inward. The insertion block scrapes the soil and slides into the receiving frame, thereby realizing the automated soil sampling process on the surface of different height areas of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the planar structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the protection component of the present invention;

[0024] Figure 3 is a schematic diagram of the three-dimensional structure of the control component of the present invention;

[0025] Figure 4 It is a schematic diagram of the internal structure of the counterweight block of the present invention;

[0026] Figure 5 It is a schematic diagram of the disc structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the connection structure between the magnetic rod and the receiving frame of the present invention.

[0028] Among them: base-1, control component-2, connecting hole-3, monitoring camera-4, protection component-5, servo motor-21, retracting rod-22, traction rope-23, worm-24, worm wheel-25, gear-26, connecting rod-27, electromagnetic spring-28, rack-29, card plate-210, card slot-211, support rod-51, push rod-52, reset spring-53, connecting rod-54, glass baffle-55, connecting rod Touch rod-56, counterweight block-61, roller 62, connecting shaft-63, disc-64, electromagnet-65, groove-66, extrusion spring-67, magnetic rod-68, receiving frame-69, insertion block-610, telescopic belt-611, isolation membrane-612, guide telescopic rod-613, receiving spring-614, auxiliary rack-615, auxiliary gear-616, pulley-617, belt-618, isolation plate-619. DETAILED DESCRIPTION

[0029] The following will be combined with the attached Figure 1-Figure 6 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are made clear. The complete description is obvious. The described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0030] Embodiment 1:

[0031] See also Figures 1 to 6 A foundation pit monitoring system for construction engineering of the present invention comprises a base 1, and connection holes 3 are provided at the left and right ends of the bottom of the base 1. An external operator can fix the base 1 in the installation area by connecting the holes 3 and the plug to the external installation ground. A controller is provided on the base 1, and the servo motor 21, the electromagnetic spring 28, and the electromagnet 65 are electrically connected to the controller.

[0032] Specifically, a control component 2 is fixedly connected inside the base 1 , and the control component 2 is used to adjust the height of the monitoring camera 4 . A protection component 5 is fixedly connected to the top of the base 1 .

[0033] Specifically, a servo motor 21 is fixedly connected inside the base 1, and the output shaft of the servo motor 21 is fixedly connected to the center of the winding roller 22, and the two sets of winding rollers 22 are connected as a whole through a worm 24, so that the winding roller 22 can drive the worm 24 to rotate while rotating, and the worm 24 drives the worm wheel 25 to rotate, and the worm 24 is meshed with the worm wheel 25, and the center of the worm wheel 25 is fixedly connected to the gear 26, and a connecting rod 27 is slidably connected to the inner wall of the base 1, and a monitoring camera 4 is fixedly connected to the top of the connecting rod 27. The monitoring camera 4 can monitor the construction situation of the foundation pit in real time, and the upper and lower ends of the connecting rod 27 are fixedly connected to electromagnetic springs 28, and the other end of the electromagnetic spring 28 is connected to the The rack 29 is fixedly connected, and one end of the rack 29 away from the electromagnetic spring 28 is meshed with the gear 26. The winding roller 22 can drive the gear 26 to rotate while rotating. The upper and lower ends of the rack 29 are fixedly connected with sliding rods, and the sliding rods slide through the inner wall of the connecting rod 27 and are fixedly connected to the card plate 210. A plurality of groups of limit rods are equidistantly arranged on the card plate 210, and a plurality of groups of card slots 211 are arranged on the inner wall of the base 1. When the electromagnetic spring 28 is energized, it drives the rack 29 to move toward the end of the connecting rod 27, so that the meshing between the rack 29 and the gear 26 disappears, and the rack 29 drives the card plate 210 to move at the same time, and the card plate 210 can be inserted into the card slot 211 to prevent the connecting rod 27 from sliding downward.

[0034] Specifically, the side wall of the winding roller 22 is wound with a traction rope 23, and the other ends of the two groups of traction ropes 23 slide through the side wall of the base 1 and are fixedly connected to the counterweight block 61. The counterweight block 61 is rotatably connected with a roller 62, and one end of the roller 62 passes through the side wall of the counterweight block 61 to contact the side wall of the foundation pit outside. The center of the roller 62 is fixedly connected to the disc 64 through a connecting shaft 63. A hollow area is provided at the center of the disc 64, and an electromagnet 65 is inserted into the hollow area (the magnetic rod 68 is close to the electromagnet 65 and the area is the same as the electromagnet 65 when it is energized). When the electromagnet 65 is energized, it pushes the magnetic rod 68 to move outward, and the electromagnet 65 passes through an L plate G ( Figure 5As shown in the figure, the disc 64 is fixedly connected to the inner wall of the counterweight 61. When the disc 64 rotates, it will not drive the electromagnet 65 to rotate. A groove 66 connected to the hollow area is embedded in the disc 64. The inner wall of the groove 66 is fixedly connected to the extrusion spring 67. The other end of the extrusion spring 67 is fixedly connected to the magnetic rod 68. A screw is fixedly connected to the top of the magnetic rod 68. The screw is threadedly connected to the inner area of ​​the bottom of the receiving frame 69. The receiving frame 69 is twisted to rotate, and the receiving frame 69 is separated from the screw so that the soil in the receiving frame 69 can be collected later. The side wall of the receiving frame 69 away from the magnetic rod 68 is connected to the insertion block 610 through a telescopic belt 611. The top side wall of the receiving frame 69 is fixedly connected to an isolation membrane 612. The other end of the isolation membrane 612 is connected to the insertion block 610. The top of the receiving frame 69 is fixedly connected to the guide telescopic rod 613, the movable end of the guide telescopic rod 613 is fixedly connected to the inner wall of the insertion block 610, the inner wall of the insertion block 610 is fixedly connected with an auxiliary rack 615, the auxiliary rack 615 is slidably connected to the inner wall of the receiving frame 69, the auxiliary rack 615 engages to drive the auxiliary gear 616 to rotate with the inner wall of the receiving frame 69, a one-way bearing is provided in the receiving frame 69, and the inner ring of the one-way bearing is fixedly connected to the center of the auxiliary gear 616, the outer ring of the one-way bearing is fixedly connected to the center of the pulley 617, the upper and lower ends of the receiving frame 69 are rotatably connected with pulleys 617, the side walls of the two sets of pulleys 617 are transmission-connected with belts 618, and the side walls of the belt 618 are equidistantly fixedly connected with isolation plates 619.

[0035] Specifically, the groove 66, the extrusion spring 67, the magnetic rod 68, the receiving frame 69, the insertion block 610, the telescopic belt 611, the isolation membrane 612, the guide telescopic rod 613, the receiving spring 614, the auxiliary rack 615, the auxiliary gear 616, the pulley 617, the belt 618, and the isolation plate 619 constitute a sampling assembly. The sampling assembly is provided with multiple groups, and the multiple groups of sampling assemblies are arranged in a ring shape in the disc 64.

[0036] The working principle of a foundation pit monitoring system for construction engineering based on the first embodiment is:

[0037] During monitoring, the base 1 is installed in the monitoring area, and then the foundation pit area is monitored through the monitoring camera 4, and the counterweight 61 is placed on the side wall of the foundation pit, and the pulling force on the counterweight 61 is released. Due to the action of gravity, the counterweight 61 contacts the side wall of the foundation pit through the roller 62 on the side wall and slides down, and the counterweight 61 slides down to pull the traction rope 23, and the traction rope 23 drives the winding rod 22 to rotate, and the winding rod 22 applies force to drive the worm 24 to drive the worm wheel 25 to rotate, and the worm wheel 25 drives the gear 26 to rotate, and the gear 26 meshes and drives the rack 29 to move downward, and the rack 29 drives the monitoring camera 4 to move downward through the connecting rod 27 to adjust the height. When the counterweight 61 contacts the bottom of the foundation pit, the pulling force applied by the counterweight 61 to the traction rope 23 disappears, that is, when the depth of the foundation pit changes (for example, due to excavation), the height of the monitoring camera can be automatically adjusted to ensure the best monitoring angle, which avoids the need for frequent manual adjustment of the monitoring camera, saving manpower and time;

[0038] When it is necessary to sample the soil on the inner wall of the foundation pit (when it is not necessary to adjust the position of the monitoring camera 4 at the same time, the electromagnetic spring 28 is energized, and the electromagnetic spring 28 drives the rack 29 to move toward the end of the connecting rod 27, and the rack 29 loses the meshing with the gear 26, and does not drive the connecting rod 27 to move when the reeling roller 22 rotates. At the same time, the rack 29 pushes the card plate 210 to be stuck in the card slot 211, so that the position of the connecting rod 27 is limited and fixed, and the position of the monitoring camera 4 is fixed, so that when the soil is sampled, the monitoring position and angle of the camera are not affected, ensuring The accuracy and continuity of monitoring data), when the servo motor 21 drives the reeling roller 22 to pull the counterweight 61 upward, the control electromagnet 65 is energized, and the electromagnet 65 pushes the magnetic rod 68 and the receiving frame 69 and the insertion block 610 to move outward. When the counterweight 61 moves, the roller 62 contacts and rolls with the side wall of the foundation pit, and the roller 62 drives the disc 64 to rotate through the connecting shaft 63. The disc 64 drives the insertion block 610 to squeeze and contact with the soil on the side of the foundation pit. The insertion block 610 is squeezed and compressed to receive the spring 614 to move inward, and the insertion block 610 scrapes the soil The insert block 610 slides into the receiving frame 69 to realize the automatic soil sampling process on the surface of different height areas of the foundation pit, and the insert block 610 moves inward while driving the auxiliary rack 615 to move and engage the auxiliary gear 616 to rotate, and the auxiliary gear 616 drives the pulley 617 to rotate through the one-way bearing, and the pulley 617 drives the belt 618 to rotate, and the belt 618 can drive the isolation plate 619 to move, so that the isolation plate 619 in the other group moves to the receiving frame 69 to receive the area below the insert block 610, ready for the next sampling, when the receiving frame 69 When the contact with the side wall of the foundation pit disappears and moves to the inside of the counterweight block 61, the receiving spring 614 drives the insertion block 610 to reset, and the insertion block 610 simultaneously drives the auxiliary rack 615 to move, and the auxiliary rack 615 moves and engages to drive the auxiliary gear 616 to rotate. The auxiliary gear 616 does not drive the pulley 617 to rotate due to the one-way bearing. In the process of soil collection, soil at different heights of the foundation pit is stored in different storage spaces at the same time, so that separate storage is achieved, which reduces the need for manual operation, and reduces labor costs and operational risks.

[0039] Embodiment 2:

[0040] See also Figures 1 to 3, a foundation pit monitoring system for construction engineering of the present invention, compared with the first embodiment, this embodiment also includes: a protective component 5 includes a support rod 51, a support rod 51 is fixedly connected to the top of the base 1, a push rod 52 is slidably connected in the support rod 51, a side wall of the push rod 52 is fixedly connected to one end of a return spring 53, and the other end of the return spring 53 is fixedly connected to the support rod 51, and two groups of glass baffles 55 are rotatably connected to the side wall of the support rod 51, and the side wall of the glass baffle 55 is rotatably connected to the connecting rod 54, and the other end of the connecting rod 54 away from the glass baffle 55 is rotatably connected to the side wall of the push rod 52, and the bottom of the push rod 52 passes through the support rod 51 and is fixedly connected to the contact rod 56, and a hollow part is provided at the bottom of the glass baffle 55, which is used to pass the connecting rod 27 when the two groups of glass baffles 55 are closed, so as to prevent the glass baffle 55 from being squeezed to the connecting rod 27, and the glass baffle 55 is transparent.

[0041] The present invention provides a foundation pit monitoring system for construction engineering through improvement, and its working principle is as follows;

[0042] During construction, when it is necessary to continue excavating the foundation pit, the servo motor 21 can be controlled to drive the winding roller 22 to rewind the traction rope 23 to drive the counterweight block 61 to reset upward, and the gear 26 drives the monitoring camera 4 to reset upward by pushing the connecting rod 27. The monitoring camera 4 moves upward until it is squeezed and contacted with the bottom of the contact rod 56. The contact rod 56 moves upward under the thrust to push the push rod 52 to move. The push rod 52 drives the two sets of connecting rods 54 to drive the glass baffle 55 to rotate downward and wrap the monitoring camera 4, effectively protecting the monitoring camera from possible damage such as dust, splashing objects, etc. in the construction environment, ensuring the safety and normal use of the monitoring camera.

[0043] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0044] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A foundation pit monitoring system for construction engineering, comprising a base, with connecting holes provided at the left and right ends of the bottom of the base; Features: A control component is fixedly connected inside the base, and the control component is used to adjust the height of the monitoring camera; A servo motor is fixedly connected inside the base, and the output shaft of the servo motor is fixedly connected to the center of the winding roller, and the two sets of winding rollers are connected as a whole through a worm, the worm is meshed with the worm wheel, and the center of the worm wheel is fixedly connected to the gear. A connecting rod is slidably connected to the inner wall of the base, and a monitoring camera is fixedly connected to the top of the connecting rod. Electromagnetic springs are fixedly connected to the upper and lower ends of the connecting rod, and the other end of the electromagnetic spring is fixedly connected to the rack, and the end of the rack away from the electromagnetic spring is meshed with the gear, and sliding rods are fixedly connected to the upper and lower ends of the rack, and the sliding rods slide through the inner wall of the connecting rod and are fixedly connected to the card plate, and a plurality of limit rods are equidistantly provided on the card plate, and a plurality of card slots are provided on the inner wall of the base; The side wall of the retracting rod is retracted with a traction rope, and the other ends of the two groups of traction ropes slide through the side wall of the base and are fixedly connected with the counterweight block.

2. A foundation pit monitoring system for construction engineering according to claim 1, characterized in that: A protection component is fixedly connected to the top of the base, and the protection component includes a support rod. The top of the base is fixedly connected to the support rod, and a push rod is slidably connected inside the support rod. The side wall of the push rod is fixedly connected to one end of a return spring, and the other end of the return spring is fixedly connected to the support rod.

3. A foundation pit monitoring system for construction engineering according to claim 2, characterized in that: The side wall of the support rod is rotatably connected with two groups of glass baffles, the side wall of the glass baffle is rotatably connected with the connecting rod, the other end of the connecting rod away from the glass baffle is rotatably connected with the side wall of the push rod, and the bottom of the push rod passes through the support rod and is fixedly connected with the contact rod.

4. A foundation pit monitoring system for construction engineering according to claim 3, characterized in that: A roller is rotatably connected inside the counterweight block, and the center of the roller is fixedly connected to the disc through a connecting shaft. A hollow area is provided at the center of the disc, and an electromagnet is inserted into the hollow area. The electromagnet is fixedly connected to the inner wall of the counterweight block through an L-plate.

5. A foundation pit monitoring system for construction engineering according to claim 4, characterized in that: A groove connected to the hollow area is embedded in the disc, the inner wall of the groove is fixedly connected to the extrusion spring, the other end of the extrusion spring is fixedly connected to the magnetic rod, a screw is fixedly connected to the top of the magnetic rod, the screw is threadedly connected to the bottom inner area of ​​the receiving frame, the side wall of the receiving frame away from the magnetic rod is connected to the insertion block through a telescopic belt, and an isolation membrane is fixedly connected to the top side wall of the receiving frame.

6. A foundation pit monitoring system for construction engineering according to claim 5, characterized in that: The other end of the isolation film is connected to the insertion block, the top of the receiving frame is fixedly connected to the guide telescopic rod, and the movable end of the guide telescopic rod is fixedly connected to the inner wall of the insertion block.

7. A foundation pit monitoring system for construction engineering according to claim 6, characterized in that: An auxiliary rack is fixedly connected to the inner wall of the insert block, and the auxiliary rack is slidably connected to the inner wall of the receiving frame. The auxiliary rack meshes to drive the auxiliary gear to rotate with the inner wall of the receiving frame, and a one-way bearing is arranged in the receiving frame.

8. A foundation pit monitoring system for construction engineering according to claim 7, characterized in that: The inner ring of the one-way bearing is fixedly connected to the center of the auxiliary gear, the outer ring of the one-way bearing is fixedly connected to the center of the pulley, the upper and lower ends of the receiving frame are rotatably connected to the pulleys, the side walls of the two sets of pulleys are transmission-connected with belts, and the side walls of the belts are equidistantly fixedly connected with isolation plates.

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