Municipal engineering foundation pit deformation monitoring device

Abstract

The invention discloses a municipal engineering foundation pit deformation monitoring device, relates to the technical field of foundation pit deformation monitoring, and solves the technical problems that an existing foundation pit deformation monitoring device is limited in monitoring range and is difficult to give an alarm normally when monitoring conditions are not up to standard, the municipal engineering foundation pit deformation monitoring device comprises an erecting mechanism, and a fixing mechanism is arranged on one side of the top of the erecting mechanism; and a monitoring mechanism is arranged on one side of the fixing mechanism, a supporting mechanism is arranged in the monitoring mechanism, and the top of the erecting mechanism is in threaded connection with an audible and visual alarm through bolts. Through cooperative work of the mechanisms, the monitoring mechanism, the supporting mechanism and the audible and visual alarm can be erected conveniently and can be stored together, the occupied space is reduced, meanwhile, the device is convenient to carry, the use flexibility is improved, the triggering stroke of the audible and visual alarm for giving an alarm can be adjusted, and the practicability is high. And the conditions of inclination of the pit wall, subsidence of the pit bottom and the like of the foundation pit can be monitored, and the monitoring range is expanded.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit deformation monitoring, and particularly relates to a foundation pit deformation monitoring device for municipal engineering. Background Technique

[0002] Foundation pit monitoring is an important link in the construction of foundation pit projects. It refers to observing and analyzing the properties of foundation pit rock and soil, the displacement of the retaining structure, and the changes in the surrounding environmental conditions during the excavation of the foundation pit and the construction of underground projects, and timely feedback of the monitoring results to predict the deformation and the development of the stability state after further construction, and judging the degree of impact of the construction on the surrounding environment according to the prediction;

[0003] In municipal engineering, it is often necessary to excavate foundation pits. During or after the excavation of the foundation pit, due to the pressure exerted by the surrounding soil on the foundation pit, it is extremely easy to cause the deformation of the foundation pit and serious accidents such as foundation pit collapse. Therefore, after the excavation of the foundation pit, some monitoring and alarm means are needed to give a warning before the collapse accident occurs;

[0004] After retrieval, a foundation pit slope settlement online monitoring device is disclosed in a Chinese patent, with the publication number CN215447878U. The bearing platform is fixed on the flat foundation through positioning bolts, and the observation level makes the bearing platform horizontal. The electric push rod is started, and the sliding cylinder is placed at a suitable height through the connecting rod, so that the smooth surface of the inclined plane block contacts the foundation pit slope. The fastening bolts are tightened to fix the sliding rod and the inclined plane block. The sliding block slides in the chute to place the contact block two at a suitable position. The fixing bolt passes through the sliding block and extends into the threaded hole. If the foundation pit slope settles too much, the contact block one on the sliding rod will touch the contact block two on the L rod, the flash light will flash, and the alarm will sound for alarm;

[0005] However, there are still some deficiencies in the above device during use. Since the sliding cylinder is placed at a suitable height through the connecting rod, the smooth surface of the inclined plane block contacts the foundation pit slope, the monitoring range is limited, and if the pit wall of the foundation pit is inclined and the bottom of the pit does not subside, it is difficult to generate a normal alarm, which poses a safety hazard. Summary of the Invention

[0006] The purpose of the present invention is to provide a foundation pit deformation monitoring device for municipal engineering to solve the following technical problems:

[0007] The existing foundation pit deformation monitoring devices have a limited monitoring range, and if the pit wall of the foundation pit is inclined and the bottom of the pit does not subside, it is difficult to generate a normal alarm, which poses a safety hazard.

[0008] The object of the present invention can be achieved by the following technical solutions: A deformation monitoring device for a foundation pit in municipal engineering, including an erection mechanism, on one side of the top of the erection mechanism is provided a fixing mechanism, on one side of the fixing mechanism is provided a monitoring mechanism, inside the monitoring mechanism is provided a support mechanism, and an audible and visual alarm is connected to the top of the erection mechanism by bolt threading.

[0009] The erection mechanism includes a chassis, on the side of the chassis is rotatably connected a sliding frame through a pin shaft, inside the sliding frame is slidably connected a support frame, on one side of the bottom end of the chassis and on one side of the top end of the sliding frame are provided fixing ground nails, and two card slots are opened inside the top end of the chassis.

[0010] As a further scheme of the present invention, the fixing ground nail includes an inserted ground nail shell, at the bottom end inside the inserted ground nail shell is rotatably connected a rotating block, at the top end of the rotating block is fixedly connected a lead screw, the outer wall of the lead screw is threadedly connected with a threaded block, inside the outer side of the threaded block is rotatably connected a connecting rod, the other end of the connecting rod is rotatably connected with an inserting rod, at the top end of the lead screw is fixedly connected a knob, the inserted ground nail shell is fixedly connected to one side of the bottom of the chassis, the top end of the lead screw penetrates through the inside of the chassis, and the bottom end of the knob is rotatably connected to the top end of the chassis, and the bottom end of the inserting rod is rotatably connected to the inside of the side surface of the inserted ground nail shell through a pin shaft.

[0011] As a further scheme of the present invention, at the front end and the rear end inside the sliding frame are respectively opened guiding sliding grooves, and at the top ends of the front surface and the back of the sliding frame are both threadedly connected with butterfly screws, and at the bottom of the front end and the rear end of the outer wall of the support frame are both processed with convex blocks adapted to the specifications of the guiding sliding grooves.

[0012] As a further scheme of the present invention, the fixing mechanism includes a clamping member, on the side of the clamping member is provided a vertical plate, at the front end and the rear end of the vertical plate are respectively opened first sliding grooves, inside both of the first sliding grooves are slidably connected sliding connection heads, inside both of the sliding connection heads are rotatably connected a bracket, inside the bracket is rotatably connected a spring clamping rod through a pin shaft, and the side surface of the bracket is attached to the side surface of the vertical plate.

[0013] As a further scheme of the present invention, inside both of the sliding connection heads are also threadedly connected with butterfly screws, and the inner sides of the butterfly screws are attached to the inner sides of the first sliding grooves.

[0014] As a further solution of the present invention, the spring clamping rod is composed of a groove tube, a square tube and a return spring. The square tube is slidably connected inside the groove tube, and the return spring is inserted inside the groove tube. One end of the return spring is fixedly connected to the inside of the groove tube, and the other end of the return spring is fixedly connected to the side surface of the square tube. A plurality of slots are evenly formed on the side surface of the vertical plate, and a slot is also formed on one side inside the bracket. The specifications of the plurality of slots are adapted to the end of the spring clamping rod, and the spring clamping rod can be inserted inside the slot.

[0015] As a further solution of the present invention, the clamping member includes a first adapter. A shaft tube is fixedly connected to the inside of the first adapter. A sleeve is sleeved on the outer wall of the shaft tube. Fixed clamping blocks are fixedly connected to the front end and the rear end inside the shaft tube. Buttons are slidably connected to the front surface and the back of the first adapter. Slide rods are fixedly connected to the inside of the two buttons. Movable clamping blocks are fixedly connected to the inside of the two slide rods. A support spring is fixedly connected to the inside of the two movable clamping blocks. The bottom end of the first adapter is fixedly connected to one side of the top end of the bottom frame. The inside of the sleeve is slidably connected to the outer wall of the inside of the movable clamping block. The two slide rods are slidably connected inside the first adapter and the shaft tube. The outside of the two movable clamping blocks is clamped inside the fixed clamping block. The side surface of the sleeve is fixedly connected to the side surface of the vertical plate.

[0016] As a further solution of the present invention, the monitoring mechanism includes a horizontal plate. Second chutes are formed on the outer side of the center of the top and the outer side of the center of the bottom of the horizontal plate. A shaft disc is fixedly connected to the center of the front surface of the horizontal plate. A rotating rod is rotatably connected to the inside of the shaft disc. A locking sleeve is fixedly connected to the outer side of the front surface of the shaft disc. A gear is fixedly connected to the inside of the rotating rod. A lower rack is meshed with the bottom end of the gear. A lower support rod is fixedly connected to the bottom end of the lower rack. An upper rack is meshed with the top end of the gear. An upper support rod is fixedly connected to the top end of the upper rack. Electrical contacts are fixedly connected to the inside of the lower support rod and the upper support rod. The lower rack and the lower support rod and the upper rack and the upper support rod are slidably connected inside the horizontal plate, and the inner sides of the rear ends of the lower support rod and the upper support rod penetrate through the center of the inside of the cross bar. The horizontal plate is rotatably connected to the side surface of the bracket through a pin shaft.

[0017] As a further solution of the present invention, support blocks are slidably connected to the bottom end of the side surface of the horizontal plate close to the bracket and the bottom end of the side surface of the bracket close to the horizontal plate through spring pieces. The top ends of the plurality of support blocks are respectively attached to the lower surfaces of the bracket and the horizontal plate.

[0018] As a further solution of the present invention, the support mechanism includes a slider, on one side of the slider is fixedly connected with a second adapter, on the other side of the slider is fixedly connected with a contact receiving groove, inside the second adapter is rotatably connected with a support rod, on the other side of the support rod is fixedly connected with a third adapter, inside the third adapter is rotatably connected with a sleeve connection block, on the side of the sleeve connection block is rotatably connected with a fastening bolt, the slider can be slidably connected inside the second chute, and the contact receiving groove and the electrical contact are on the same horizontal line.

[0019] As a further solution of the present invention, on the bottom end of the side of the carriage and on the top end of the side of the support frame are both provided with threaded grooves adapted to the specifications of the fastening bolts, the fastening bolts can be threadedly connected inside the threaded grooves, and the electrical contact and the contact receiving groove are connected to the sound and light alarm through a connecting wire.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) Through the work of the fixing nails in the erection mechanism, when it is necessary to erect the chassis, carriage and support frame into the foundation pit, the chassis and support frame can be quickly fixed. While inserting the ground nail shell into the soil layer, the insertion rod can also be clamped into the soil layer, making the connection between the ground nail shell and the bottom and wall of the foundation pit closer. When the bottom of the pit subsides or the wall of the pit inclines, it can drive the chassis or support frame to move together, facilitating the monitoring of the deformation of the foundation pit and expanding the monitoring range;

[0022] (2) Through the work of the fixing mechanism, the monitoring mechanism can be installed, and when the monitoring mechanism is not needed, the monitoring mechanism and the fixing mechanism can be stored together, reducing the occupied space, thereby improving the overall portability of the device;

[0023] (3) Through the mutual cooperation of the monitoring mechanism and the support mechanism, after installing the support mechanism inside the monitoring mechanism, when the wall of the foundation pit inclines, the support rod can be driven to shift together through the carriage and the support frame, and the moving stroke of the support frame can be amplified, and then an alarm can be issued more timely. Similarly, when the bottom of the foundation pit subsides, it will also drive the chassis to sink downward. When the chassis shifts, it will also cause the contact receiving groove to contact the electrical contact, so that the sound and light alarm starts to work and issues an alarm outward in time;

[0024] (4) Through the cooperative work of the rotating rod, gear, lower rack and upper rack in the monitoring mechanism, when rotating the rotating rod, the gear can be driven to rotate together, so as to drive the lower rack and the upper rack to move together through the gear, and then drive the lower support rod and the upper support rod to move synchronously, so that the distance between the electrical contacts fixedly connected to the inner sides of the rear ends of the lower support rod and the upper support rod can be adjusted, that is, the triggering stroke when the sound and light alarm issues an alarm is adjusted, thereby improving the overall use flexibility;

[0025] (5) Through the coordinated work of the above-mentioned mechanism, when monitoring the deformation of the foundation pit excavated in the municipal engineering, it is convenient to set up the monitoring mechanism, the support mechanism and the sound and light alarm, and they can be stored together, reducing the occupied space and facilitating their carrying, improving the flexibility of use. It can adjust the triggering stroke of the sound and light alarm, and can monitor the inclination of the foundation pit wall and the settlement of the bottom of the foundation pit, etc., expanding the monitoring range. Brief Description of the Drawings

[0026] Figure 1 is the schematic connection structure diagram of the municipal engineering foundation pit deformation monitoring device of the present invention;

[0027] Figure 2 is the present invention Figure 1 partial connection structure diagram of the erection mechanism in the present invention;

[0028] Figure 3 is the present invention Figure 2 connection structure diagram of the fixed ground nail in the present invention;

[0029] Figure 4 is the present invention Figure 3 cross-sectional connection structure diagram of the present invention;

[0030] Figure 5 is the present invention Figure 1 connection structure diagram of the fixing mechanism in the present invention;

[0031] Figure 6 is the present invention Figure 5 top view cross-sectional connection structure diagram of the clamping member in the present invention;

[0032] Figure 7 is the present invention Figure 5 assembly connection structure diagram of the fixing mechanism and the monitoring mechanism in the present invention;

[0033] Figure 8 is the present invention Figure 7 another axonometric connection structure diagram of the present invention;

[0034] Figure 9 is the present invention Figure 7 connection structure diagram of the monitoring mechanism with the cross plate hidden in the present invention;

[0035] Figure 10 is the present invention Figure 9 partial enlarged connection structure diagram at A in the present invention;

[0036] Figure 11 is the schematic connection structure diagram of the municipal engineering foundation pit deformation monitoring device after erection of the present invention;

[0037] Figure 12 is the present inventionFigure 11 Schematic diagram of the connection structure of the middle fixing mechanism, monitoring mechanism and supporting mechanism;

[0038] Figure 13 This is the present invention Figure 12 Another isometric connection structure schematic diagram;

[0039] Figure 14 This is the present invention Figure 1 Schematic diagram of the connection structure of the supporting mechanism in the present invention.

[0040] In the figure: 1, erection mechanism; 101, chassis; 102, sliding frame; 103, support frame; 104, fixing ground nail; 1041, ground nail insertion shell; 1042, rotating block; 1043, lead screw; 1044, threaded block; 1045, connecting rod; 1046, insertion rod; 1047, knob; 105, card slot; 2, fixing mechanism; 201, clamping component; 2011, first adapter; 2012, shaft tube; 2013, sleeve; 2014, fixed clamping block; 2015, button; 2016, sliding rod; 2017, movable clamping block; 2018, support spring; 202, vertical plate; 203, first chute; 204, sliding connection head; 205, bracket; 206, spring clamping rod; 3, monitoring mechanism; 301, horizontal plate; 302, second chute; 303, shaft disc; 304, rotating rod; 305, locking sleeve; 306, gear; 307, lower rack; 308, lower support rod; 309, upper rack; 310, upper support rod; 311, electrical contact; 4, supporting mechanism; 401, slider; 402, second adapter; 403, contact receiving groove; 404, support rod; 405, third adapter; 406, shaft sleeve connection block; 407, fastening bolt; 5, sound and light alarm. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0042] Embodiment 1

[0043] Please refer to Figures 1 - 4 and Figure 10As shown in the figure, the present invention is a deformation monitoring device for a municipal engineering foundation pit, including an erection mechanism 1. The erection mechanism 1 is used to support the fixing mechanism 2 and erect the fixing mechanism 2 and the monitoring mechanism 3 into the foundation pit. One side of the top of the erection mechanism 1 is provided with a fixing mechanism 2. The fixing mechanism 2 is used to support the monitoring mechanism 3. One side of the fixing mechanism 2 is provided with a monitoring mechanism 3. A support mechanism 4 is arranged inside the monitoring mechanism 3. The support mechanism 4 is used to support the chute and the support frame 103 in the erection mechanism 1. When the sliding frame 102 and the support frame 103 are displaced, they can contact the electrical contact 311 in the monitoring mechanism 3 together, so as to send an alarm to the construction personnel. The top of the erection mechanism 1 is threadedly connected with an audible and visual alarm 5 through bolts. The audible and visual alarm 5 is used to send an alarm to the construction personnel. When the foundation pit deforms, it can send an alarm in time to avoid potential safety hazards;

[0044] The erection mechanism 1 includes a chassis 101. The chassis 101 is used to support the sliding frame 102. The side of the chassis 101 is rotatably connected with a sliding frame 102 through a pin shaft. The sliding frame 102 is used to support the support frame 103 and enable the support frame 103 to slide vertically inside the sliding frame 102. The support frame 103 is slidably connected inside the sliding frame 102. Both the support frame 103 and the sliding frame 102 are used to support the pit wall of the foundation pit. When the pit wall inclines, it can drive them to shift together, so as to send an alarm in time for the deformation generated by the foundation pit. Fixed ground nails 104 are arranged on one side of the bottom end of the chassis 101 and one side of the top end of the sliding frame 102. The fixed ground nails 104 are used to fix the chassis 101 and the support frame 103, and connect them tightly with the bottom and the pit wall of the foundation pit, so that when the pit wall inclines or the bottom of the pit subsides, it can drive the support frame 103 and the chassis 101 to move together at the same time. Two card slots 105 are opened inside the top end of the chassis 101. The two card slots 105 are used to clamp the unsupplied support mechanism 4.

[0045] In this embodiment, preferably, the ground anchor 104 includes a ground anchor shell 1041. At the inner bottom end of the ground anchor shell 1041, a rotating block 1042 is rotatably connected. The rotating block 1042 is used to support the lead screw 1043, enabling the lead screw 1043 to rotate on the top of the rotating block 1042. The top of the rotating block 1042 is fixedly connected with a lead screw 1043. The lead screw 1043 is used to drive the movement of the threaded block 1044. The outer wall of the lead screw 1043 is threadedly connected with a threaded block 1044. The threaded block 1044 is used to drive the movement of the inner side of the connecting rod 1045. The outer inner side of the threaded block 1044 is rotatably connected with a connecting rod 1045. The connecting rod 1045 is used to drive the movement of the insertion rod 1046. When the threaded block 1044 drives the inner side of the connecting rod 1045 to rise, the whole connecting rod 1045 can be laid flat, so that the connecting rod 1045 extends the top end of the insertion rod 1046 outwards, so that the insertion rod 1046 is inserted into the soil layer of the foundation pit, and thus the ground anchor shell 1041 is clamped into the inner part of the soil layer. The other end of the connecting rod 1045 is rotatably connected with an insertion rod 1046. The top of the lead screw 1043 is fixedly connected with a knob 1047. The knob 1047 is used to drive the rotation of the lead screw 1043. The ground anchor shell 1041 is fixedly connected to one side of the bottom of the chassis 101. The top of the lead screw 1043 penetrates through the inside of the chassis 101, and the bottom end of the knob 1047 is rotatably connected to the top end of the chassis 101. The bottom end of the insertion rod 1046 is rotatably connected to the inner side of the side surface of the ground anchor shell 1041 through a pin shaft.

[0046] In this embodiment, preferably, guide chutes are respectively arranged at the front end and the rear end of the inner side of the sliding frame 102, and butterfly screws are threadedly connected to the top ends of the front surface and the back of the sliding frame 102. The butterfly screws are used to clamp the support frame 103. Convex blocks adapted to the specifications of the guide chutes are processed at the bottoms of the front end and the rear end of the outer wall of the support frame 103.

[0047] In summary, when the erection mechanism 1 needs to be installed in the foundation pit, first erect the sliding frame 102 so that the sliding frame 102 is perpendicular to the bottom frame 101 at a right angle. Then pull out the support frame 103 upward. After pulling out the support frame 103, tighten the butterfly screws processed at the front and rear ends of the sliding frame 102 to fix the support frame 103. After fixing the support frame 103, attach the sides of the sliding frame 102 and the support frame 103 to the pit wall in the foundation pit, and insert the fixing ground nails 104 installed on the side of the top end of the support frame 103 into the soil layer at the pit wall. At the same time, also attach the bottom end of the bottom frame 101 to the bottom of the foundation pit, and similarly insert the fixing ground nails 104 located on one side of the bottom end of the bottom frame 101 into the soil layer, so that the lower surfaces and sides of the bottom frame 101, the sliding frame 102 and the support frame 103 are respectively attached to the bottom and the pit wall of the foundation pit. Then turn the knob 1047. When the knob 1047 rotates, it can drive the lead screw 1043 to rotate together, so as to drive the threaded block 1044 to slide upward on the outer wall of the lead screw 1043 through the lead screw 1043. The movement of the threaded block 1044 can drive the connecting rod 1045 to prop up, so as to drive the insertion rod 1046 to rotate around its bottom end through the connecting rod 1045. During the rotation of the insertion rod 1046, it can be clamped into the soil layer, making the connection between the ground nail shell 1041 and the soil layer tighter. At the same time, when the soil layer deforms, it can drive the fixing ground nail 104 to move together, so as to drive the bottom frame 101 or the sliding frame 102 and the support frame 103 to deform simultaneously.

[0048] Embodiment 2

[0049] Please refer to Figure 1 、 Figures 5 - 7 and Figures 10 - 13 As shown in, the fixing mechanism 2 includes a clamping member 201. The clamping member 201 is used to support the vertical plate 202 and can drive the vertical plate 202 to rotate. The vertical plate 202 is arranged on the side of the clamping member 201. The vertical plate 202 is used to prop up the bracket 205 and can clamp the end of the spring catch 206. First chutes 203 are opened at the front and rear ends of the vertical plate 202. The first chutes 203 are used to limit the movement track of the sliding connection head 204 and can make the sliding connection head 204 slide inside it. The sliding connection heads 204 are slidably connected to the inside of the two first chutes 203. The sliding connection head 204 is used to connect the bracket 205 and the vertical plate 202 together. The bracket 205 is rotatably connected to the inside of the two sliding connection heads 204. The bracket 205 is used to install the monitoring mechanism 3. The spring catch 206 is rotatably connected to the inside of the bracket 205 through a pin shaft. The spring catch 206 is used to support the bracket 205 and improve its stability after being propped up. The side of the bracket 205 is attached to the side of the vertical plate 202.

[0050] In this embodiment, preferably, a butterfly screw is also threadedly connected inside the two sliding connectors 204, and the inner side of the butterfly screw is attached to the inner side of the first chute 203, so as to lock the sliding connector 204 to the outer wall of the vertical rod.

[0051] In this embodiment, preferably, the spring catch 206 is composed of a groove tube, a square tube and a return spring. The square tube is slidably connected inside the groove tube, and the return spring is inserted inside the groove tube. One end of the return spring is fixedly connected to the inside of the groove tube, and the other end of the return spring is fixedly connected to the side of the square tube. A plurality of slots are evenly formed on the side of the vertical plate 202, and a slot is also formed on one side inside the bracket 205. The specifications of the plurality of slots are adapted to the end of the spring catch 206, and the spring catch 206 can be inserted into the slots.

[0052] In this embodiment, preferably, the clamping member 201 includes a first adapter 2011 for fixing the shaft tube 2012. The inner side of the first adapter 2011 is fixedly connected with the shaft tube 2012. The shaft tube 2012 is used to support the sleeve 2013 so that the sleeve 2013 can rotate on the outer wall of the shaft tube 2012. The outer wall of the shaft tube 2012 is sleeved with the sleeve 2013. The sleeve 2013 is used to fix the vertical plate 202. Fixed clamping blocks 2014 are fixedly connected to the front end and the rear end inside the shaft tube 2012. The fixed clamping blocks 2014 are used to clamp the movable clamping block 2017. Buttons 2015 are slidably connected to the front surface and the back of the first adapter 2011. The buttons 2015 are used to drive the slide rod 2016 to move. Slide rods 2016 are fixedly connected to the inner sides of the two buttons 2015. The slide rods 2016 are used to drive the movable clamping block 2017 to move, so as to cancel the clamping between the movable clamping block 2017 and the fixed clamping block 2014. Movable clamping blocks 2017 are fixedly connected to the inner sides of the two slide rods 2016. The movable clamping blocks 2017 are used to clamp the sleeve 2013. Support springs 2018 are fixedly connected to the inner sides of the two movable clamping blocks 2017. The support springs 2018 are used to reset the movable clamping blocks 2017. The bottom end of the first adapter 2011 is fixedly connected to the top side of the bottom frame 101. The inner side of the sleeve 2013 is slidably connected to the outer wall of the inner side of the movable clamping block 2017 and is used to clamp the sleeve 2013. The two slide rods 2016 are slidably connected inside the first adapter 2011 and the shaft tube 2012. The outer sides of the two movable clamping blocks 2017 are clamped inside the fixed clamping blocks 2014. The side of the sleeve 2013 is fixedly connected to the side of the vertical plate 202.

[0053] In summary, after installing the erection mechanism 1 into the foundation pit, press the button 2015 in the clamping member 201 inward. When the button 2015 moves inward, it can drive the sliding rod 2016 to slide synchronously into the interior of the shaft tube 2012, so that the movable clamping block 2017 can be driven by the sliding rod 2016 to move, canceling the clamping of the fixed clamping block 2014. At this time, the sleeve 2013 can rotate on the outer wall of the shaft tube 2012. Pull the sleeve 2013 upward by 90 degrees. After the vertical plate 202 is perpendicular to the chassis 101, release the pressing of the button 2015. Through the action of the support spring 2018, the movable clamping block 2017 can be reset, and the movable clamping block 2017 is re-clamped onto the fixed clamping block 2014, thereby fixing the vertical plate 202. Then slide the bracket 205 upward. After the sliding connection head 204 slides to the top of the first chute 203, flatten the bracket 205 so that the bracket 205 is parallel to the chassis 101. Then tighten the butterfly screw processed inside the sliding connection head 204 so that the two sliding connection heads 204 can clamp the outer side of the top of the vertical plate 202, thereby initially fixing the bracket 205. Then slightly slide the square tube in the spring catch rod 206 into the interior of the groove tube, so that the end of the square tube can be pulled out from the slot opened on the inner side of the bracket 205, enabling the entire spring catch rod 206 to rotate inside the bracket 205. Then tilt the spring catch rod 206 obliquely downward and insert the end of the square tube in the spring catch rod 206 into one of the slots opened on the inner side of the vertical plate 202, and the erection of the fixing mechanism 2 can be completed.

[0054] Embodiment III

[0055] Please refer to Figure 1 and Figures 7 - 14As shown in the figure, based on the first and second embodiments, the monitoring mechanism 3 includes a cross plate 301, which is used to support the slider 401 in the support mechanism 4. Second sliding grooves 302 are formed on the outer sides of the top center and the bottom center of the cross plate 301. The second sliding grooves 302 are used to engage with the slider 401 and enable the slider 401 to slide back and forth inside the second sliding grooves 302. A shaft disc 303 is fixedly connected to the center of the front surface of the cross plate 301, and the shaft disc 303 is used to support a rotating rod 304. A rotating rod 304 is rotatably connected inside the shaft disc 303, and the rotating rod 304 is used to drive a gear 306 to rotate. A locking sleeve 305 is fixedly connected to the outer side of the front surface of the shaft disc 303, and the locking sleeve 305 is used to clamp the rotating rod. A gear 306 is fixedly connected inside the rotating rod 304, and the gear 306 is used to drive a lower rack 307 and an upper rack 309 to move. The bottom end of the gear 306 is meshed with the lower rack 307, and a lower support rod 308 is fixedly connected to the bottom end of the lower rack 307. The top end of the gear 306 is meshed with the upper rack 309, and an upper support rod 310 is fixedly connected to the top end of the upper rack 309. The lower rack 307 and the upper rack 309 are respectively used to drive the lower support rod 308 and the upper support rod 310 to move, and the lower support rod 308 and the upper support rod 310 are used to drive an electrical contact 311 to move. Electrical contacts 311 are fixedly connected to the inner sides of the lower support rod 308 and the upper support rod 310. The electrical contacts are connected to the sound and light alarm 5 through connecting wires. After the contact receiving groove 403 touches the electrical contact, a signal will be sent to the sound and light alarm 5 to start its alarm work. The lower rack 307 and the lower support rod 308, and the upper rack 309 and the upper support rod 310 are all slidably connected inside the cross plate 301, and the inner sides of the rear ends of the lower support rod 308 and the upper support rod 310 penetrate through the center of the inside of the cross bar. The cross plate 301 is rotatably connected to the side surface of the bracket 205 through a pin shaft.

[0056] In this embodiment, preferably, support blocks are slidably connected to the bottom side of the side surface of the cross plate 301 close to the bracket 205 and the bottom side of the side surface of the bracket 205 close to the cross plate 301 through spring pieces. The tops of multiple support blocks are respectively attached to the lower surfaces of the bracket 205 and the cross plate 301. The support blocks are used to support the erected bracket 205 and the cross plate 301 to prevent the cross plate 301 from rotating from the side surface of the bracket 205.

[0057] In this embodiment, preferably, the support mechanism 4 includes a slider 401 which is used to drive the contact receiving groove 403 to move. A second adapter 402 is fixedly connected to one side of the slider 401, and the second adapter 402 is used to support one end of the support rod 404. A contact receiving groove 403 is fixedly connected to the other side of the slider 401. After the contact receiving groove 403 contacts the electrical contact 311, it will transmit a signal to the sound and light alarm 5. The contact receiving groove 403 is also connected to the sound and light alarm 5 through a connecting wire. A support rod 404 is rotatably connected to the inner side of the second adapter 402, and the support rod 404 is used to support the third adapter 405. A third adapter 405 is fixedly connected to the other side of the support rod 404, and the third adapter 405 is used to support the bushing connection block 406. A bushing connection block 406 is rotatably connected to the inner side of the third adapter 405, and the bushing connection block 406 is used to support the fastening bolt 407 and enable the fastening bolt 407 to rotate inside the third adapter 405. A fastening bolt 407 is rotatably connected to the side of the bushing connection block 406. The fastening bolt 407 is used to connect the support rod 404 to the carriage 102 and the support frame 103 together. The slider 401 can be slidably connected inside the second chute 302. The contact receiving groove 403 and the electrical contact 311 are on the same horizontal line.

[0058] In this embodiment, preferably, threaded grooves adapted to the specifications of the fastening bolts 407 are provided at the bottom end of the side of the carriage 102 and the top end of the side of the support frame 103. The fastening bolts 407 can be threadedly connected inside the threaded grooves. The electrical contact 311 and the contact receiving groove 403 are connected to the sound and light alarm 5 through a connecting wire.

[0059] In summary, after the fixing mechanism 2 is erected, first press the support blocks processed on the side bottom ends of the cross plate 301 and the support 205 inward, and then pull the cross plate 301 to axially rotate it by 180 degrees to make it flush with the support 205. Then release the support blocks. Through the operation of the spring pieces processed on the outer sides of the support blocks, the support blocks can be driven to reset, thereby supporting the cross plate 301. The cross plate 301 is erected on the side of the support 205. Then, the slider 401 in the support mechanism 4 is clamped into the inner part of the second chute 302, so that the slider 401 can slide inside the cross plate 301. After the slider 401 is clamped, the fastening bolt 407 is threadedly connected to the threaded groove, and the erection of the support mechanism 4 can be completed. When the pit wall of the foundation pit undergoes inclined deformation, the sliding frame 102 and the support frame 103 will be simultaneously extruded, causing their positions to change, thereby driving the slider 401 to move through the support rod 404. When the contact receiving groove 403 at the bottom end of the slider 401 contacts the electrical contact 311 in the monitoring mechanism 3, the sound and light alarm 5 will be triggered to start working, reminding the construction personnel that the foundation pit has deformed, so as to achieve the purpose of monitoring the deformation of the foundation pit. Similarly, when the bottom of the foundation pit undergoes subsidence, the soil layer at the bottom of the pit will sink and drive the chassis 101 to shift, thereby driving the entire fixing mechanism 2 to tilt together. At this time, the cross plate 301 will be driven by the fixing mechanism 2 to shift, and the electrical contact 311 will also contact the contact receiving groove 403, causing the sound and light alarm 5 to generate an alarm. When it is necessary to adjust the triggering stroke of the electrical contact 311, pull the pull ring at the top of the locking sleeve 305 upward to cancel the clamping of the locking sleeve 305 on the rotating rod 304, so that the rotating rod 304 can rotate inside the axle disc 303. Then, by rotating the rotating rod 304, the gear 306 can be driven to rotate together. Driven by the gear 306, the lower rack 307 and the upper rack 309 move inward or outward simultaneously. Through the cooperation of the lower rack 307 and the upper rack 309, the lower support rod 308 and the upper support rod 310 can be driven to move simultaneously, thereby being able to adjust the distance between the electrical contacts 311, that is, complete the adjustment of the triggering stroke of the sound and light alarm 5, thereby improving the accuracy during its detection and alarm.

[0060] The above has described an embodiment of the present invention in detail, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the application of the present invention.

Claims

1. A municipal engineering foundation pit deformation monitoring device, characterized in that: It comprises a mounting mechanism, a fixing mechanism is arranged on one side of the top of the mounting mechanism, a monitoring mechanism is arranged on one side of the fixing mechanism, a supporting mechanism is arranged inside the monitoring mechanism, and a sound and light alarm is connected to the top of the mounting mechanism through bolt threads; The erection mechanism comprises a base frame, a slide frame is rotatably connected to the side of the base frame through a pin shaft, a support frame is slidably connected to the inner side of the slide frame, a fixed ground nail is arranged on one side of the bottom end of the base frame and one side of the top end of the slide frame, and two card slots are arranged inside the top end of the base frame; The fixed ground nail comprises a ground nail shell, the inner bottom end of the ground nail shell is rotatably connected to a rotating block, the top of the rotating block is fixedly connected to a screw rod, the outer wall of the screw rod is threadedly connected to a threaded block, the outer inner side of the threaded block is rotatably connected to a connecting rod, the other end of the connecting rod is rotatably connected to an insertion rod, the top end of the screw rod is fixedly connected to a knob, the ground nail shell is fixedly connected to one side of the bottom of the base frame, the top end of the screw rod is penetrated and arranged inside the base frame, and the bottom end of the knob is rotatably connected to the top end of the base frame, and the bottom end of the insertion rod is rotatably connected to the inside of the side of the ground nail shell through a pin shaft.

2. A municipal engineering foundation pit deformation monitoring device according to claim 1, characterized in that: The inner front and rear ends of the slide are respectively provided with guide slides, and the tops of the front surface and back of the slide are threadedly connected with butterfly screws, and the bottoms of the front and rear ends of the outer walls of the support frame are processed with protrusions that match the specifications of the guide slides.

3. A municipal engineering foundation pit deformation monitoring device according to claim 1, characterized in that: The fixing mechanism includes a clamping component, a vertical plate is provided on the side of the clamping component, a first sliding groove is opened at the front end and the rear end of the vertical plate, the inner sides of the two first sliding grooves are slidably connected with sliding connectors, the inner sides of the two sliding connectors are rotatably connected with brackets, the inner side of the bracket is rotatably connected with a spring clamping rod through a pin shaft, and the side of the bracket is fitted together with the side of the vertical plate.

4. A municipal engineering foundation pit deformation monitoring device according to claim 3, characterized in that: The insides of the two sliding connectors are also threadedly connected with butterfly screws, and the inner sides of the butterfly screws are fitted on the inner side of the first sliding groove.

5. A municipal engineering foundation pit deformation monitoring device according to claim 3, characterized in that: The spring clamping rod is composed of a groove tube, a square tube and a return spring. The square tube is slidably connected to the inside of the groove tube, the return spring is inserted into the inside of the groove tube, and one end of the return spring is fixedly connected to the inside of the groove tube, and the other end of the return spring is fixedly connected to the side of the square tube. A plurality of slots are evenly arranged on the side of the vertical plate, and a slot is also arranged on one side of the interior of the bracket, and the specifications of the plurality of slots are adapted to the end of the spring clamping rod, so that the spring clamping rod can be inserted into the inside of the slot.

6. A municipal engineering foundation pit deformation monitoring device according to claim 3, characterized in that: The clamping component includes an adapter 1, an axis tube is fixedly connected to the inner side of the adapter 1, a sleeve is sleeved on the outer wall of the axis tube, fixed blocks are fixedly connected to the front and rear ends of the inner side of the axis tube, buttons are slidably connected to the front surface and back of the adapter 1, sliding rods are fixedly connected to the inner sides of the two buttons, movable blocks are fixedly connected to the inner sides of the two sliding rods, support springs are fixedly connected to the inner sides of the two movable blocks, the bottom end of the adapter 1 is fixed to the top side of the base frame, the inner side of the sleeve is slidably connected to the inner outer wall of the movable block, the two sliding rods are slidably connected to the inside of the adapter 1 and the axis tube, the outer sides of the two movable blocks are clamped to the inner side of the fixed block, and the side faces of the sleeve are fixedly connected to the side faces of the vertical plate.

7. A municipal engineering foundation pit deformation monitoring device according to claim 1, characterized in that: The monitoring mechanism includes a horizontal plate, and a second sliding groove is provided on the outer side of the top center and the outer side of the bottom center of the horizontal plate, an axis disk is fixedly connected to the center of the front surface of the horizontal plate, a rotating rod is rotatably connected inside the axis disk, a locking sleeve is fixedly connected to the outer side of the front surface of the axis disk, a gear is fixedly connected to the inside of the rotating rod, the bottom end of the gear is meshedly connected to a lower rack, the bottom end of the lower rack is fixedly connected to a lower support rod, the top end of the gear is meshedly connected to an upper rack, the top end of the upper rack is fixedly connected to an upper support rod, the inner sides of the lower support rod and the upper support rod are fixedly connected to electrical contacts, the lower rack and the lower support rod, the upper rack and the upper support rod are all slidably connected to the inside of the horizontal plate, and the inner sides of the rear ends of the lower support rod and the upper support rod are penetrated and arranged at the inner center of the horizontal bar, and the horizontal plate is rotatably connected to the side of the bracket through a pin shaft.

8. A municipal engineering foundation pit deformation monitoring device according to claim 7, characterized in that: The bottom end of the side surface of the horizontal plate close to the bracket and the bottom end of the side surface of the bracket close to the horizontal plate are both slidably connected with support blocks through spring sheets, and the top ends of the plurality of support blocks are respectively attached to the lower surfaces of the bracket and the horizontal plate.

9. A municipal engineering foundation pit deformation monitoring device according to claim 1, characterized in that: The supporting mechanism includes a slider, one side of the slider is fixedly connected to an adapter 2, the other side of the slider is fixedly connected to a contact receiving groove, the inner side of the adapter 2 is rotatably connected to a support rod, the other side of the support rod is fixedly connected to an adapter 3, the inner side of the adapter 3 is rotatably connected to a sleeve connecting block, the side of the sleeve connecting block is rotatably connected to a fastening bolt, the slider can be slidably connected to the inside of the second slide groove, and the contact receiving groove and the electrical contact are on the same horizontal line.

10. The municipal engineering foundation pit deformation monitoring device according to claim 1, characterized in that: The bottom side of the slide and the top side of the support frame are both provided with threaded grooves that match the specifications of the fastening bolts. The fastening bolts can be threadedly connected inside the threaded grooves. The electrical contacts and contact receiving grooves are connected to the sound and light alarm through connecting wires.

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