A foundation pit monitoring system

Abstract

The present invention relates to the technical field of foundation pit monitoring, and specifically to a foundation pit monitoring system, comprising a bottom plate, wherein four groups of pillars are fixedly connected to the upper end surfaces of the bottom plate near four corners, and a top plate is fixedly connected to the upper end surfaces of the four groups of pillars, and the top plate is parallel to the bottom plate and equal in size, and a pusher is fixedly connected to the middle part of the rear side of the upper end surface of the bottom plate, and four groups of rollers are arranged below the bottom plate, and a monitoring mechanism is arranged above the top plate. By arranging the monitoring mechanism in the device, when in use, when the monitoring plate in the detection mechanism touches a foundation pit with a tendency to collapse, an angle tilt will occur, thereby triggering an L-shaped rod to move to the left, and at this time, a material barrel will sprinkle white powder, and the position of the sprinkled white powder line reminds the staff of the position of the foundation pit with a tendency to collapse, and the thickness of the white powder line also reflects the size of the collapse tendency of the position of this section of the foundation pit, while optimizing engineering operations, it also avoids the occurrence of safety accidents.

Description

Technical Field

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

[0002] The foundation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the situation of nearby buildings on site, and waterproofing and drainage should be done. If the excavation is not deep, the side slope can be used to make the soil slope stable. The slope size is determined according to relevant construction regulations;

[0003] Foundation pit monitoring is an important part of foundation pit construction. It refers to the observation and analysis of the changes in the rock and soil properties of the foundation pit, the displacement of the support structure and the surrounding environmental conditions during the foundation pit excavation and underground engineering construction process. The monitoring results are fed back in time to predict the deformation and stable state development caused by further construction. According to the prediction, the degree of impact of the construction on the surrounding environment is determined to guide the design and construction, realizing the so-called information construction.

[0004] In the prior art, when measuring the collapse of the side of the foundation pit, the measuring device cannot accurately mark the location of the foundation pit with a tendency to collapse, and the tendency of the side of the foundation pit to collapse at different locations is also different. The monitoring device cannot provide accurate feedback to the staff, which makes it inconvenient for the staff to repair the foundation pit and affects work efficiency.

[0005] Therefore, a foundation pit monitoring system is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a foundation pit monitoring system, which solves the following problems: when measuring the collapse of the side of the foundation pit, the measuring device cannot accurately mark the position of the foundation pit with a tendency to collapse, and the tendency of the side of the foundation pit at different positions to collapse is also different, and the monitoring device cannot give accurate feedback to the staff, which makes it inconvenient for the staff to repair the foundation pit and affects the work efficiency; and when using the device, the side of the foundation pit is measured by simply pushing the device by manpower, which consumes labor and affects the work efficiency.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A foundation pit monitoring system comprises a base plate, wherein four groups of pillars are fixedly connected at the upper end surface of the base plate near the four corners, the upper end surfaces of the four groups of pillars are fixedly connected to a top plate, the top plate is parallel to the base plate up and down and are equal in size, a pusher is fixedly connected to the middle of the rear side of the upper end surface of the base plate, four groups of rollers are arranged below the base plate, the rollers at the left and right ends of the front and rear sides of the base plate are fixedly connected by a transverse connecting rod, the outer surfaces of the two groups of the transverse connecting rods are symmetrically connected to two groups of connecting blocks by bearings, the four groups of connecting blocks are fixedly connected to the lower end surface of the base plate, vertical connecting rods are fixedly connected between the front and rear groups of the connecting blocks on the left and right sides, and a monitoring mechanism is arranged above the top plate.

[0009] Preferably, the monitoring mechanism includes a support rod, a cross bar 1, a monitoring plate, a cross bar 2, an adjustment block and a cross bar 3. A support rod is fixedly connected to the middle of the upper end surface of the top plate, a cross bar 1 is slidably connected to the upper end of the support rod, a cross bar 2 is rotatably connected to the left side of the outer surface of the support rod below the cross bar 1 through a bearing, an adjustment block is fixedly connected to the other end of the cross bar 2, and a cross bar 3 is connected to the other end of the adjustment block through an internal spiral transmission, the left end of the cross bar 3 is flush with the left end of the cross bar 1, and a monitoring plate is hinged to the left end of the cross bar 3 and the cross bar 1.

[0010] Preferably, four groups of connecting columns are fixedly connected in an annular manner with equal intervals in the middle of the lower end surface of the top plate, and a material barrel is fixedly connected to the lower end surfaces of the four groups of connecting columns. The lower end of the material barrel is a conical structure and the top of the conical structure is in an open state. A feed funnel is fixedly connected to the upper end surface of the top plate at the front side of the support rod, and a feed pipe below the feed funnel extends downward and penetrates the upper end wall of the front side of the material barrel.

[0011] Preferably, a second long groove is provided at the lower end of the outer surface of the rear side of the support rod, and a first long groove is provided at the lower end of the middle part of the support rod. The first long groove is flush with the top of the second long groove, and the first long groove extends downward to pass through the bottom end of the support rod, and the first long groove is connected to the second long groove.

[0012] Preferably, an L-shaped rod is fixedly connected to the lower surface of the right side of the cross bar, and the L-shaped rod passes through the top plate and extends downward to be flush with the bottom of the conical structure of the barrel. A baffle is fixedly connected to the top of the L-shaped rod, and the baffle matches the discharge port of the barrel and fits up and down. A leakage hole is opened in the middle of the bottom plate at a position corresponding to the discharge port.

[0013] Preferably, a pressure plate is slidably connected to the inner wall of the material containing barrel, a vertical rod is fixedly connected to the middle of the upper end surface of the pressure plate, the vertical rod passes through the material containing barrel and the top plate and extends upward to the inside of the long groove one, a handle is fixedly connected to the left side of the outer surface of the upper end of the vertical rod, the handle extends backward and extends out to the outside of the long groove two, and a spring is fixedly connected between the upper end surface of the vertical rod and the top end surface of the long groove one.

[0014] Preferably, a hemispherical groove is provided in the middle of the outer surface of the front end of the pressure plate, and a cylindrical pin block is spirally connected to the middle of the outer surface of the front end of the material holding barrel above the feed pipe, and the rear end of the pin block is hemispherical and matches the groove.

[0015] Preferably, a driving mechanism is arranged under the base plate, and the driving mechanism includes a motor basket, a motor, a bevel gear 1 and a bevel gear 2. The motor basket is fixedly connected to the rear side of the middle part of the lower end surface of the base plate, and the motor is fixedly connected to the bottom of the motor basket. The motor output shaft extends backward and the top end is fixedly connected to the bevel gear 1, and the outer surface of the rear horizontal connecting rod is fixedly connected to the bevel gear 2 near the middle position, and the bevel gear 1 is meshed with the bevel gear 2.

[0016] Preferably, a stirring mechanism is provided at the bottom end of the material holding barrel, and the stirring mechanism comprises a rectangular block, a stirring roller, a stirring rod, a transmission wheel 1 and a transmission wheel 2; a rectangular block is fixedly connected to the middle part of the front side of the upper end face of the bottom plate; the outer surface of the rear end of the rectangular block is rotatably connected to the stirring roller through a bearing; the stirring roller extends backward and passes through the wall of the material holding barrel; the stirring roller is rotatably connected to the wall of the material holding barrel through a bearing; a plurality of groups of stirring rods are fixedly connected to the outer surface of the stirring roller located inside the material holding barrel; a transmission wheel 1 is fixedly connected to the outer surface of one end of the motor output shaft close to the motor; a transmission wheel 2 is fixedly connected to the outer surface of the stirring roller at a corresponding position above and below the transmission wheel 1; the transmission wheel 1 and the transmission wheel 2 are rotatably connected through a transmission belt.

[0017] Preferably, a rectangular groove is opened inside the upper end of the support rod on the upper and lower sides of the cross bar, a sliding rod is fixedly connected between the left and right end surfaces of the two groups of rectangular grooves, a sliding block is fixedly connected to the upper and lower end surfaces of the cross bar corresponding to the rectangular groove, a reset spring is fixedly connected between the left end surface of the sliding block and the left end of the rectangular groove, and the sliding rod passes through the inside of the reset spring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By setting a monitoring mechanism in the device, when the monitoring plate in the detection mechanism touches a foundation pit with a tendency to collapse, it will tilt at an angle, thereby triggering the L-shaped rod to move to the left. At this time, the material barrel will sprinkle white powder. The position of the sprinkled white powder line reminds the staff of the location of the foundation pit with a tendency to collapse. The thickness of the white powder line also reflects the size of the collapse tendency of the location of the foundation pit, which optimizes the engineering operation while avoiding the occurrence of safety accidents;

[0020] 2. By setting a driving mechanism in the device, the driving mechanism drives the two sets of active rollers on the rear side to rotate, and the rotation of the active rollers drives the two sets of driven rollers on the front side to rotate. When in use, the staff only needs to control the power supply of the driving mechanism on the push handle, and the device will automatically move forward, which saves manpower and improves work efficiency;

[0021] 3. By setting a stirring mechanism in the device, the stirring roller in the stirring mechanism will be driven to rotate while the driving mechanism is working. The rotation of the stirring roller stirs the white powder at the bottom of the barrel to prevent the white powder from being unable to spill out from the bottom of the barrel due to being in a compacted state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is the overall structural view of the present invention;

[0024] Figure 2 For the present invention Figure 1 The cross-sectional view at AA in FIG.

[0025] Figure 3 For the present invention Figure 2 The enlarged view of point B in the figure;

[0026] Figure 4 For the present invention Figure 2 Cross-sectional view at CC in ;

[0027] Figure 5 It is a bottom view of the device of the present invention.

[0028] Description of reference numerals:

[0029] 1. Bottom plate; 11. Pillar; 12. Top plate; 13. Push handle; 2. Roller; 21. Horizontal connecting rod; 22. Vertical connecting rod; 23. Connecting block; 3. Monitoring mechanism; 30. Support rod; 301. Long slot 1; 302. Long slot 2; 31. Crossbar 1; 32. Monitoring plate; 33. Crossbar 2; 34. Adjustment block; 35. Crossbar 3; 36. L-shaped rod; 361. Baffle; 362. Leakage hole; 4. Material holding barrel; 40. Feeding funnel; 41 , connecting column; 42, vertical rod; 420, handle; 43, pressure plate; 44, spring; 45, groove; 46, pin block; 5, driving mechanism; 51, motor basket; 52, motor; 53, bevel gear one; 54, bevel gear two; 6, stirring mechanism; 61, rectangular block; 62, stirring roller; 63, stirring rod; 64, transmission wheel one; 65, transmission wheel two; 71, rectangular groove; 72, slide rod; 73, slide block; 74, reset spring. DETAILED DESCRIPTION

[0030] 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.

[0031] The embodiment of the present invention provides a foundation pit detection system, which solves the problem that when measuring the collapse of the side of the foundation pit, the measuring device cannot accurately mark the position of the foundation pit with a tendency to collapse, and the tendency of the side of the foundation pit at different positions to collapse is also different, and the monitoring device cannot give accurate feedback to the staff, which makes it inconvenient for the staff to repair the foundation pit and affects the work efficiency; and when using the device, the side of the foundation pit is measured by manpower alone, which consumes labor and affects the work efficiency.

[0032] The technical solution in the embodiment of the present invention is to solve the above technical problems, and the overall idea is as follows: by setting a monitoring mechanism in the device, when in use, when the monitoring plate in the detection mechanism touches a foundation pit with a tendency to collapse, an angle will be tilted, thereby triggering the L-shaped rod to move to the left, and the material barrel will sprinkle white powder at this time. The position of the sprinkled white powder line reminds the staff of the location of the foundation pit with a tendency to collapse, and the thickness of the white powder line also reflects the size of the collapse tendency of the location of the foundation pit, while optimizing the engineering operation, it also avoids the occurrence of safety accidents; by setting a driving mechanism in the device, the driving mechanism drives the two sets of active rollers on the rear side to rotate, and the rotation of the active rollers drives the two sets of driven rollers on the front side to rotate. When in use, the staff only needs to control the power supply of the driving mechanism on the push handle, and the device will automatically move forward, saving manpower while also improving work efficiency;

[0033] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] like Figures 1 to 5 As shown, the present invention provides a foundation pit monitoring system, including a bottom plate 1, wherein four groups of pillars 11 are fixedly connected at the upper end surface of the bottom plate 1 near the four corners, and a top plate 12 is fixedly connected to the upper end surfaces of the four groups of pillars 11, and the top plate 12 is parallel to the bottom plate 1 up and down and equal in size, and a pusher 13 is fixedly connected to the middle of the rear side of the upper end surface of the bottom plate 1, and four groups of rollers 2 are arranged below the bottom plate 1, and the rollers 2 at the left and right ends of the front and rear sides of the bottom plate 1 are fixedly connected by a horizontal connecting rod 21, and the outer surfaces of the two groups of the horizontal connecting rods 21 are symmetrically connected to two groups of connecting blocks 23 through bearings for rotation, and the four groups of connecting blocks 23 are fixedly connected to the lower end surface of the bottom plate 1, and vertical connecting rods 22 are fixedly connected between the front and rear groups of the connecting blocks 23 on the left and right sides, and a monitoring mechanism 3 is arranged above the top plate 12.

[0035] By adopting the above technical solution, when in use, hold the push handle 13 to move the device forward. When encountering a foundation pit with a tendency to collapse, the monitoring mechanism 3 will cause the device to sprinkle white powder. The position of the sprinkled white powder line reminds the staff of the location of the foundation pit with a tendency to collapse. The thickness of the white powder line also reflects the degree of collapse tendency of the location of the foundation pit, which optimizes the engineering operation while avoiding the occurrence of safety accidents.

[0036] As an embodiment of the present invention, Figure 1 and Figure 2 As shown, the monitoring mechanism 3 includes a support rod 30, a cross bar 1 31, a monitoring plate 32, a cross bar 2 33, an adjustment block 34 and a cross bar 35. The support rod 30 is fixedly connected to the middle of the upper end surface of the top plate 12, and the upper end of the support rod 30 is slidably connected to the cross bar 1 31. The left side of the outer surface of the support rod 30 is located below the cross bar 1 31 and is rotatably connected to the cross bar 2 33 through a bearing. The other end of the cross bar 2 33 is fixedly connected to the adjustment block 34, and the other end of the adjustment block 34 is internally spirally connected to the cross bar 35. The left end of the cross bar 35 is flush with the left end of the cross bar 1 31, and the monitoring plate 32 is hinged to the left end of the cross bar 35 and the cross bar 1 31.

[0037] By adopting the above technical solution, the device needs to be adjusted before use. In the initial state, the monitoring plate 32 is parallel to the support rod 30. When in use, the adjustment block 34 is rotated to move the cross bar 35 to the right to achieve a state where the monitoring plate 32 is in contact with the surface of the foundation pit, thus preparing for the monitoring work.

[0038] As an embodiment of the present invention, Figure 1 , Figure 2 and Figure 4As shown, four groups of connecting columns 41 are fixedly connected in an annular manner at equal intervals in the middle of the lower end surface of the top plate 12, and the lower end surfaces of the four groups of connecting columns 41 are fixedly connected to the material holding barrel 4. The lower end of the material holding barrel 4 is a conical structure and the top of the conical structure is in an open state. The upper end surface of the top plate 12 is located in front of the support rod 30 and is fixedly connected with a feed funnel 40. The feed pipe below the feed funnel 40 extends downward and penetrates the upper end wall of the front side of the material holding barrel 4. The lower end of the outer surface of the rear side of the support rod 30 is provided with a long groove 2 302, and the lower end of the middle part of the support rod 30 is provided with a long groove 1 301. The top of the long groove 1 301 is flush with the top of the long groove 2 302, and the long groove 1 301 extends downward to penetrate the bottom end of the support rod 30, and the long groove 1 301 and the long groove 2 302 are connected. The lower surface of the right side of the cross bar 1 31 is fixedly connected with an L-shaped rod 36, and the L-shaped rod 36 penetrates the top plate 12 and extends downward to be flush with the bottom of the conical structure of the material barrel 4. The top of the L-shaped rod 36 is fixedly connected with a baffle 361, and the baffle 361 matches the discharge port of the material barrel 4 and fits up and down. A leakage hole 362 is opened in the middle of the bottom plate 1 corresponding to the discharge port;

[0039] A pressure plate 43 is slidably connected to the inner wall of the material holding barrel 4, and a vertical rod 42 is fixedly connected to the middle part of the upper end surface of the pressure plate 43. The vertical rod 42 penetrates the material holding barrel 4 and the top plate 12 and extends upward to the inside of the long slot 1 301. A handle 420 is fixedly connected to the left side of the outer surface of the upper end of the vertical rod 42. The handle 420 extends backward and extends out of the long slot 2 302. A spring 44 is fixedly connected between the upper end surface of the vertical rod 42 and the top end surface of the long slot 1 301. A hemispherical groove 45 is provided in the middle part of the outer surface of the front end of the pressure plate 43. A cylindrical pin block 46 is spirally connected to the middle part of the outer surface of the front end of the material holding barrel 4, which is located above the feed pipe, and the rear end of the pin block 46 is hemispherical and matches the groove 45.

[0040] By adopting the above technical solution, in the initial state, the baffle 361 at the bottom end of the L-shaped rod 36 blocks the discharge port of the material holding barrel 4. First, the pin block 46 is screwed out of the pin hole and then the handle 420 is lifted upward, so that the vertical rod 42 drives the pressure plate 43 to move upward. When the vertical rod 42 moves upward, the spring 44 is compressed. When the handle 420 moves upward to the top of the long groove 2 302, the pressure plate 43 just rises to the top of the material holding barrel 4, and the groove 45 on the front end surface of the pressure plate 43 is just aligned with the pin hole. At this time, the pin block 46 is aligned with the pin hole and screwed into the pin hole. The top end of the pin block 46 is hemispherical and just matches the hemispherical groove 45. The pin block 46 squeezes the pressure plate 43 inward to increase the friction between the pressure plate 43 and the inner wall of the material holding barrel 4, so that the position of the pressure plate 43 is fixed. At this time, the material is fed to the feeder. Pour white powder into the funnel 40, and the white powder falls into the inside of the material holding barrel 4 along the feed pipe below the feed funnel 40. When the white powder in the feed funnel 40 no longer falls downward, it means that the inside of the material holding barrel 4 is already full of white powder, and the powder loading work is completed at this time. Then, the pin block 46 is twisted outward for a distance to disengage the pin block 46 from the groove 45 on the pressure plate 43. At this time, the vertical rod 42 pushes the pressure plate 43 downward by one end under the action of its own gravity and the restoring elastic force of the spring 44. The white powder in the loose state will move downward by one end under the extrusion pressure of the pressure plate 43. Finally, the pin block 46 is twisted into the pin hole again to insert the pin block 46 into the pin hole to prevent the pin block 46 from being lost. This operation process completes the powder loading work and prepares for the subsequent monitoring work.

[0041] As an embodiment of the present invention, Figure 5 As shown, a driving mechanism 5 is arranged below the base plate 1, and the driving mechanism 5 includes a motor basket 51, a motor 52, a bevel gear 1 53 and a bevel gear 2 54. The motor basket 51 is fixedly connected to the rear side of the middle part of the lower end surface of the base plate 1, and the motor 52 is fixedly connected to the bottom of the motor basket 51. The output shaft of the motor 52 extends backward and the top end is fixedly connected to the bevel gear 1 53. The outer surface of the rear side horizontal connecting rod 21 is fixedly connected to the bevel gear 2 54 near the middle position, and the bevel gear 1 53 is meshed with the bevel gear 2 54.

[0042] By adopting the above technical solution, when the device is working, the switch of the motor 52 on the push handle 13 is turned on, and the output shaft of the motor 52 will drive the bevel gear 1 53 to rotate. The rotation of the bevel gear 1 53 will drive the bevel gear 2 54 meshing with it to rotate. The rotation of the bevel gear 2 54 drives the rear horizontal connecting rod 21 to rotate, thereby driving the two rear groups of rollers 2 to rotate. Since the two rear groups of connecting blocks 23 are connected to the two front groups of connecting blocks 23 by the vertical connecting rod 22, when the two rear groups of rollers 2 rotate forward, they will push the two front groups of rollers 2 to rotate forward, so that the entire device moves forward to start monitoring work.

[0043] As an embodiment of the present invention, Figure 2 , Figure 3 and Figure 4 As shown, a stirring mechanism 6 is provided at the bottom end of the material holding barrel 4, and the stirring mechanism 6 includes a rectangular block 61, a stirring roller 62, a stirring rod 63, a transmission wheel 1 64 and a transmission wheel 2 65. A rectangular block 61 is fixedly connected to the middle of the front side of the upper end of the bottom plate 1, and a stirring roller 62 is rotatably connected to the outer surface of the rear end of the rectangular block 61 through a bearing. The stirring roller 62 extends backward and penetrates the wall of the material holding barrel 4. The stirring roller 62 is rotatably connected to the wall of the material holding barrel 4 through a bearing. A plurality of groups of stirring rods 63 are fixedly connected to the outer surface of the stirring roller 62 located inside the material holding barrel 4. The outer surface of one end of the output shaft of the motor 52 close to the motor 52 A transmission wheel 64 is fixedly connected thereto, and a transmission wheel 2 65 is fixedly connected thereto at the upper and lower corresponding positions of the outer surface of the stirring roller 62 and the transmission wheel 1 64, and the transmission wheel 1 64 and the transmission wheel 2 65 are rotationally connected thereto through a transmission belt, and a rectangular groove 71 is provided inside the upper end of the support rod 30 at the upper and lower sides of the cross bar 1 31, and a slide bar 72 is fixedly connected thereto between the left and right end surfaces of the two groups of the rectangular grooves 71, and a slide bar 73 is fixedly connected thereto at the corresponding positions of the upper and lower end surfaces of the cross bar 1 31 and the rectangular groove 71, and a return spring 74 is fixedly connected thereto between the left end surface of the slide bar 73 and the left end of the rectangular groove 71, and the slide bar 72 passes through the interior of the return spring 74.

[0044] By adopting the above technical solution, when the motor 52 is working, the transmission wheel 1 64 on its output shaft will also rotate synchronously. Since the transmission wheel 1 64 and the transmission wheel 2 65 are connected by a transmission belt, when the transmission wheel 1 64 rotates, the transmission wheel 2 65 will be driven to rotate. The rotation of the transmission wheel 2 65 will drive the stirring roller 62 to rotate. When the stirring roller 62 rotates, a plurality of groups of stirring rods 63 fixedly connected to its outer surface will rotate at the bottom of the material barrel 4. When the stirring rods 63 rotate, the white powder at the bottom of the material barrel 4 is loosened to prevent the white powder from falling from the material barrel 4 due to being compacted by the pressing plate 43. When the device moves forward, the monitoring The plate 32 is always in a state of being in contact with the side of the foundation pit. During the monitoring process, if the angle of the foundation pit tilts inward, the side of the foundation pit with the changed tilt angle will squeeze the monitoring plate 32 inward, so that the cross bar 31 hinged on the upper right end of the monitoring plate 32 moves to the right. At this time, the slider 73 fixed on the upper and lower end surfaces of the cross bar 31 will slide to the right on the slider 72. When the slider 73 slides, the reset spring 74 will be stretched. When the cross bar 31 moves to the right, the L-shaped rod 36 fixed to its right end will also move to the right. A notch is provided on the top plate 12 for the L-shaped rod 36 to move to the right. At this time, the baffle at the bottom of the L-shaped rod 36 361 will move to the right to open the opening at the bottom of the material holding barrel 4, and the white powder loosened by the stirring rod 63 will fall from the discharge port at the bottom of the material holding barrel 4, and the fallen white powder will pass through the leakage hole 362 and finally fall to the ground. The position of the foundation pit with a tendency to collapse can be judged according to the position of the line where the white powder falls. At this time, it should be emphasized that the greater the inward inclination angle of the side of the foundation pit, the greater the distance the cross bar 31 and the L-shaped rod 36 will move to the right, and the greater the distance the L-shaped rod 36 moves to the right, the greater the distance the baffle 361 moves to the right, resulting in a larger opening when the white powder falls, and ultimately more white powder will be spilled, so The collapse tendency of the foundation pit can also be judged according to the thickness of the line of white powder spilling. When the device moves to the normal side of the foundation pit, the cross bar 31 will move to the left to return to its original position under the action of the reset spring 74, and the baffle 361 will return to its original position to block the discharge port at the bottom of the material barrel 4, and the white powder will stop spilling. It should be noted at this time that when the white powder inside the material barrel 4 is almost used up, the pressure plate 43 will move down to the top of the conical structure of the material barrel 4. At this time, the handle 420 just moves down to the bottom of the long groove 2 302. Therefore, the staff can judge the amount of white powder inside the material barrel 4 according to the position of the handle 420 in the long groove 2 302.

[0045] Working principle: The device needs to be adjusted before use. In the initial state, the monitoring plate 32 is parallel to the support rod 30. When in use, rotate the adjustment block 34 to move the cross bar 35 to the right to achieve a state where the monitoring plate 32 fits the surface of the foundation pit, and prepare for the monitoring work. In the initial state, the baffle 361 at the bottom end of the L-shaped rod 36 blocks the discharge port of the material barrel 4. First, screw out the pin block 46 from the pin hole and then lift the handle 420 upward to make the vertical rod 42 drive the pressure plate 43 to move upward. The spring 44 will be compressed when the vertical rod 42 moves upward. When the handle 420 moves upward to the top of the long slot 2 302, the pressure plate 43 just rises to the top of the material barrel 4, and the groove 45 on the front end face of the pressure plate 43 just aligns with the pin hole. At this time, align the pin block 46 with the pin hole and screw it into the pin hole. The top of the pin block 46 is hemispherical and just matches the hemispherical groove 45, and the pin block 46 squeezes inward. The pressing plate 43 increases the friction between the pressing plate 43 and the inner wall of the material holding barrel 4 so that the position of the pressing plate 43 is fixed. At this time, white powder is poured into the feeding funnel 40, and the white powder falls into the material holding barrel 4 along the feeding pipe below the feeding funnel 40. When the white powder in the feeding funnel 40 no longer falls downward, it means that the material holding barrel 4 is already full of white powder. At this time, the powder filling work is completed, and then the pin block 46 is twisted outward for a distance to make the pin block 46 disengage from the groove 45 on the pressing plate 43. At this time, the vertical rod 42 pushes the pressing plate 43 downward by an end distance under the action of its own gravity and the restoring elastic force of the spring 44. The white powder in the loose state will move downward by an end distance under the extrusion force of the pressing plate 43. Finally, the pin block 46 is twisted into the pin hole again to insert the pin block 46 into the pin hole to prevent the pin block 46 from being lost. This operation process completes the powder filling work and prepares for the later monitoring work.

[0046] When the device is working, the switch of the motor 52 on the push handle 13 is turned on, and the output shaft of the motor 52 will drive the bevel gear 1 53 to rotate. The rotation of the bevel gear 1 53 will drive the bevel gear 2 54 meshing with it to rotate. The rotation of the bevel gear 2 54 drives the rear horizontal connecting rod 21 to rotate, thereby driving the two groups of rollers 2 on the rear side to rotate. Since the two groups of connecting blocks 23 on the rear side are connected to the two groups of connecting blocks on the front side by the vertical connecting rod 22, when the two groups of rollers 2 on the rear side rotate forward, they will push the two groups of rollers 2 on the front side to rotate forward, so that the whole device moves forward to start monitoring work. When the motor 52 is working, the transmission wheel 1 64 on its output shaft will also rotate synchronously. Since the transmission wheel 1 64 is connected to the transmission wheel 2 65 by a transmission belt transmission, when the transmission wheel 1 64 rotates When the stirring roller 62 rotates, it will drive the transmission wheel 2 65 to rotate, and the rotation of the transmission wheel 2 65 will drive the stirring roller 62 to rotate. When the stirring roller 62 rotates, several groups of stirring rods 63 fixedly connected to its outer surface will rotate at the bottom of the material barrel 4. When the stirring rods 63 rotate, the white powder at the bottom of the material barrel 4 is loosened to prevent the white powder from being compacted by the pressing plate 43 and unable to fall from the material barrel 4. When the device moves forward, the monitoring plate 32 is always in a state of being in contact with the side of the foundation pit. During the monitoring process, if the inclined surface of the foundation pit changes its angle inward, the side of the foundation pit with the changed inclination angle will squeeze the monitoring plate 32 inward, so that the cross bar 131 hinged at the upper end of the right side of the monitoring plate 32 moves to the right. A slot for the L-shaped rod 36 to move to the right is provided on the top plate 12. At this time, the cross bar 131 The slider 73 fixed on the upper and lower end faces will slide to the right on the slider 72, and the return spring 74 will be stretched while the slider 73 slides. When the cross bar 31 moves to the right, the L-shaped rod 36 fixedly connected at its right end will also move to the right. At this time, the baffle 361 at the bottom of the L-shaped rod 36 will move to the right to open the opening at the bottom of the material storage barrel 4, and the white powder loosened by the stirring rod 63 will fall from the discharge port at the bottom of the material storage barrel 4, and the fallen white powder will pass through the leakage hole 362 and finally fall to the ground. The position of the line where the white powder is scattered can be judged according to the position of the line where the foundation pit has a tendency to collapse. At this time, it should be emphasized that the greater the inward inclination angle of the side of the foundation pit, the greater the distance that the cross bar 31 and the L-shaped rod 36 move to the right, and the more the L-shaped rod 36 moves to the right, the more it will block the The further the plate 361 moves to the right, the larger the opening when the white powder falls, and the more white powder will be spilled in the end. Therefore, the tendency of the foundation pit to collapse can also be judged according to the thickness of the line of the white powder spilling. When the device moves to the normal side of the foundation pit, the cross bar 31 will move to the left under the action of the reset spring 74 to return to its original position, and the baffle 361 returns to its original position to block the discharge port at the bottom of the material barrel 4, and the white powder stops spilling. It should be noted at this time that when the white powder inside the material barrel 4 is almost used up, the pressure plate 43 will move down to the top of the conical structure of the material barrel 4. At this time, the handle 420 just moves down to the bottom of the long groove 2 302. Therefore, the staff can judge the amount of white powder inside the material barrel 4 according to the position of the handle 420 in the long groove 2 302.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foundation pit monitoring system, comprising a bottom plate (1), characterized in that: Four groups of pillars (11) are fixedly connected to the upper end surface of the bottom plate (1) near the four corners, and the upper end surfaces of the four groups of pillars (11) are fixedly connected to the top plate (12). The top plate (12) is parallel to the bottom plate (1) in the upper and lower directions and is equal in size. A push handle (13) is fixedly connected to the middle part of the rear side of the upper end surface of the bottom plate (1). Four groups of rollers (2) are arranged below the bottom plate (1). The rollers (2) at the left and right ends of the front and rear sides of the bottom plate (1) are fixedly connected by a transverse connecting rod (21). The outer surfaces of the two groups of transverse connecting rods (21) are symmetrically connected to two groups of connecting blocks (23) through bearings. The four groups of connecting blocks (23) are fixedly connected to the lower end surface of the bottom plate (1). The two groups of connecting blocks (23) on the left and right sides are fixedly connected by vertical connecting rods (22). A monitoring mechanism (3) is arranged above the top plate (12); The monitoring mechanism (3) comprises a support rod (30), a cross bar 1 (31), a monitoring plate (32), a cross bar 2 (33), an adjustment block (34) and a cross bar 3 (35); the support rod (30) is fixedly connected to the middle of the upper end surface of the top plate (12); the upper end of the support rod (30) is slidably connected to the cross bar 1 (31); the left side of the outer surface of the support rod (30) is located below the cross bar 1 (31) and is rotatably connected to the cross bar 2 (33) through a bearing; the other end of the cross bar 2 (33) is fixedly connected to the adjustment block (34); the other end of the adjustment block (34) is internally connected to the cross bar 3 (35) through a spiral transmission; the left end of the cross bar 3 (35) is flush with the left end of the cross bar 1 (31) in upper and lower directions; the monitoring plate (32) is hingedly connected to the left end of the cross bar 3 (35) and the cross bar 1 (31); Four groups of connecting columns (41) are fixedly connected in an annular manner and equidistantly in the middle of the lower end surface of the top plate (12); the lower end surfaces of the four groups of connecting columns (41) are fixedly connected to a material holding barrel (4); the lower end of the material holding barrel (4) is a conical structure and the top of the conical structure is in an open state; the upper end surface of the top plate (12) is located in front of the support rod (30) and is fixedly connected to a feeding funnel (40); a feeding pipe below the feeding funnel (40) extends downward and is connected to the upper end wall of the front side of the material holding barrel (4); A second long groove (302) is provided at the lower end of the rear outer surface of the support rod (30), and a first long groove (301) is provided at the lower end of the middle portion of the support rod (30). The first long groove (301) is flush with the top of the second long groove (302), and the first long groove (301) extends downward to pass through the bottom end of the support rod (30), and the first long groove (301) and the second long groove (302) are connected. An L-shaped rod (36) is fixedly connected to the lower surface of the right side of the cross bar (31), and the L-shaped rod (36) passes through the top plate (12) and extends downward to be flush with the bottom of the conical structure of the material holding barrel (4). A baffle (361) is fixedly connected to the top of the L-shaped rod (36), and the baffle (361) matches the discharge port of the material holding barrel (4) and fits up and down. A leakage hole (362) is opened in the middle of the bottom plate (1) at a position corresponding to the discharge port. The inner wall of the material holding barrel (4) is slidably connected with a pressure plate (43), and the middle part of the upper end surface of the pressure plate (43) is fixedly connected with a vertical rod (42), and the vertical rod (42) passes through the material holding barrel (4) and the top plate (12) and extends upward to the inside of the long groove (301), and the left side of the upper end outer surface of the vertical rod (42) is fixedly connected with a handle (420), and the handle (420) extends backward and extends out to the outside of the long groove (302), and a spring (44) is fixedly connected between the upper end surface of the vertical rod (42) and the top end surface of the long groove (301); A hemispherical groove (45) is provided in the middle of the outer surface of the front end of the pressing plate (43); a cylindrical pin block (46) is spirally connected to the middle of the outer surface of the front end of the material holding barrel (4) at a position above the feed pipe; the rear end of the pin block (46) is hemispherical and matches the groove (45); A driving mechanism (5) is arranged below the bottom plate (1), and the driving mechanism (5) comprises a motor basket (51), a motor (52), a bevel gear one (53) and a bevel gear two (54); the motor basket (51) is fixedly connected to the rear side of the middle part of the lower end surface of the bottom plate (1); the motor (52) is fixedly connected to the bottom of the motor basket (51); the output shaft of the motor (52) extends backward and the top end is fixedly connected to the bevel gear one (53); the outer surface of the rear side horizontal connecting rod (21) is fixedly connected to the bevel gear two (54) near the middle position; the bevel gear one (53) is meshed with the bevel gear two (54); The bottom end of the material holding barrel (4) is provided with a stirring mechanism (6), the stirring mechanism (6) comprising a rectangular block (61), a stirring roller (62), a stirring rod (63), a transmission wheel 1 (64) and a transmission wheel 2 (65). The rectangular block (61) is fixedly connected to the middle of the front side of the upper end of the bottom plate (1). The outer surface of the rear end of the rectangular block (61) is rotatably connected to the stirring roller (62) via a bearing. The stirring roller (62) extends backward and penetrates the wall of the material holding barrel (4). The stirring roller (62) is connected to the material holding barrel (4). The walls of the material holding barrel (4) are rotatably connected via bearings; a plurality of groups of stirring rods (63) are fixedly connected to the outer surface of a stirring roller (62) located inside the material holding barrel (4); a transmission wheel 1 (64) is fixedly connected to the outer surface of an end of the output shaft of the motor (52) close to the motor (52); a transmission wheel 2 (65) is fixedly connected to the outer surface of the stirring roller (62) and the transmission wheel 1 (64) at corresponding positions above and below the outer surface; and the transmission wheel 1 (64) and the transmission wheel 2 (65) are rotatably connected via a transmission belt; A rectangular groove (71) is provided inside the upper end of the support rod (30) at the upper and lower sides of the cross bar (31), and a slide bar (72) is fixedly connected between the left and right end surfaces of the two groups of rectangular grooves (71). A slide block (73) is fixedly connected at the corresponding positions of the upper and lower end surfaces of the cross bar (31) and the rectangular groove (71), and a return spring (74) is fixedly connected between the left end surface of the slide block (73) and the left end of the rectangular groove (71), and the slide bar (72) passes through the interior of the return spring (74).

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