Foundation pit gradient measuring device with calibration structure

Abstract

The invention relates to the technical field of foundation pit slope measurement, and provides a foundation pit slope measurement device with a calibration structure, which comprises a mounting plate and a support plate, a positioning calibration assembly is mounted on the mounting plate, the positioning calibration assembly comprises a first threaded rod, the first threaded rod is in threaded connection with the mounting plate, and the first threaded rod is in threaded connection with the support plate. A positioning frame is rotatably connected to the bottom end of the first threaded rod, a first inserting block is welded and fixed to the bottom end of the positioning frame, a limiting plate is welded and fixed to the top end face of the positioning frame, a positioning plate is welded and fixed to the side end of the top of the positioning frame, and a gas storage frame is welded and fixed in the mounting plate; a first reset spring is welded and fixed to the bottom end face of the interior of the gas storage frame, and a multifunctional measuring assembly is installed on the supporting plate. By means of the technical scheme, the problems that in the prior art, a foundation pit slope measuring device cannot conduct multi-point-position measurement on the slope of a foundation pit slope, and meanwhile, the foundation pit slope measuring device cannot conduct convenient and stable leveling calibration on the foundation pit slope measuring device itself are solved.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit slope measurement, and in particular to a foundation pit slope measurement device with a calibration structure. Background Art

[0002] With the rapid development of society, the construction industry has developed vigorously. In engineering construction, foundation engineering is an important part to ensure the safety and stability of the superstructure. When carrying out foundation construction, earth excavation is required first. During the excavation process, the slope of the foundation pit needs to be controlled. The slope size is determined according to relevant construction regulations. Once the slope value of the slope is determined, if it exceeds the specified value during construction, it will cause an increase in the occupied area and a higher economic cost of the cross section; if it does not reach the specified value, it will directly affect the stability of the foundation pit and bury quality risks. Therefore, it is necessary to use a slope measuring device to measure the slope of the foundation pit slope.

[0003] During the actual construction of the foundation pit, the slope of the foundation pit has a certain length, and the existing foundation pit slope measuring devices have some problems in actual use. For example, a slope measuring device for foundation pit support in construction engineering with publication number CN112484699B can be stably inserted into the soil of the foundation pit slope during operation, but its measurement range is limited, and it can only measure the slope of a small range of slopes around the measuring device. If the slope is uneven or has a different slope in other places, the measurement result will be inaccurate; if it is necessary to complete the overall slope measurement of the slope, multiple operations are required, which has poor practicality and low work efficiency; and the existing foundation pit slope measuring device cannot perform convenient and stable leveling and calibration on itself during actual work, which can easily lead to inaccurate subsequent foundation pit slope measurement results. Therefore, it is necessary to provide a foundation pit slope measuring device with a calibration structure to meet the needs of users. Summary of the invention

[0004] The present invention proposes a foundation pit slope measuring device with a calibration structure, which solves the problem that the foundation pit slope measuring device in the related art cannot perform multi-point measurement of the slope of the foundation pit slope surface and cannot perform convenient and stable leveling calibration on itself.

[0005] The technical solution of the present invention is as follows: A foundation pit slope measuring device with a calibration structure comprises a mounting plate and a support plate, a positioning calibration component is mounted on the mounting plate, the positioning calibration component comprises a first threaded rod, the first threaded rod is threadedly connected to the mounting plate, the bottom end of the first threaded rod is rotatably connected to a positioning frame, the bottom end of the positioning frame is welded and fixed with a first plug block, a limiting plate is welded and fixed on the top surface of the positioning frame, a positioning plate is welded and fixed on the top side end of the positioning frame, an air storage frame is welded and fixed in the mounting plate, a first return spring is welded and fixed on the inner bottom end surface of the air storage frame, and a first return spring is fixedly connected to the first return spring. There is a first piston, a limit rod is fixedly connected to the top end surface of the first piston, the limit rod penetrates and is slidably connected in the gas storage frame, the top end of the limit rod is welded and fixed to the bottom end surface of the support plate, a multifunctional measuring component is installed on the support plate, a second fixing frame is welded and fixed to the support plate, a second connecting spring is welded and fixed to the second connecting spring, a second clamping rod is welded and fixed to the second connecting spring, a rotating shaft is rotatably connected to the support plate, a connecting plate is welded and fixed to the top end of the rotating shaft, a spirit level is bolted to the top end surface of the connecting plate, and a battery is bolted to the top end surface of the support plate.

[0006] As a preferred solution of the present invention, wherein: four first threaded rods are provided, the four first threaded rods are evenly distributed around the mounting plate, the first threaded rods correspond to the positioning frame one by one, the first threaded rods are connected to the top center part of the positioning frame, the limit plate and the positioning plate are symmetrically distributed on both sides of the top of the positioning frame, the limit plate is slidingly connected in the mounting plate, the limit rod is connected to the top center part of the first piston, and the cross-section of the limit rod is rectangular.

[0007] As a preferred solution of the present invention, wherein: the first piston is slidably connected in the air storage frame, the bottom side end of the air storage frame is connected to a connecting hose, the bottom of the connecting hose is fixedly connected to the first air pipe, the first air pipe is connected to the second air pipe, the second air pipe is connected to a plug tube, the plug tube and the first air pipe are both fixedly connected in the positioning frame, a rubber plate is fixedly connected in the plug tube, a second return spring is welded and fixed in the plug tube, the second return spring is fixedly connected to the second piston, the second piston is slidably connected in the plug tube, and the second piston is fixedly connected to the second plug block.

[0008] As a preferred solution of the present invention, wherein: the connecting hose corresponds one-to-one with the positioning frame through the first air duct, the second air duct is symmetrically distributed on both sides of the first air duct, the second air duct corresponds one-to-one with the plug tube, the rubber plates are symmetrically distributed on both sides of the plug tube, and the rubber plates on both sides are in contact with each other.

[0009] As a preferred solution of the present invention, wherein: a first fixing plate is welded and fixed on the bottom end surface of the support plate, a first connecting spring is welded and fixed on the first fixing plate, a first clamping rod is welded and fixed on the first connecting spring, a first clamping groove is opened at the side end of the mounting plate, the first fixing plates are symmetrically distributed on both sides of the bottom of the support plate, and the first fixing plates correspond one-to-one with the first clamping groove through the first clamping rod.

[0010] As a preferred scheme of the present invention, wherein: the multifunctional measuring component includes a first fixed frame and a rotating frame, a first limit frame is welded and fixed on the first fixed frame, a first connecting shaft is rotatably connected to the first limit frame, a first volute spring is welded and fixed in the first limit frame, the inner end of the first volute spring is welded and fixed on the first connecting shaft, a telescopic sleeve is welded and fixed on the first connecting shaft, a first hydraulic rod is installed and fixed on the inner middle part of the telescopic sleeve, a support rod is welded and fixed on the telescopic sleeve, a support plate is welded and fixed on the support rod, a third plug block is welded and fixed on the support plate, two support rods are provided, and the two support rods are distributed at both ends of the telescopic sleeve, the support rods correspond to the support plates one by one, and the third plug blocks are equidistantly distributed on the support plates.

[0011] As a preferred scheme of the present invention, wherein: a connecting plate is welded and fixed on the telescopic sleeve, a second threaded rod is threadedly connected to the connecting plate, a push plate is rotatably connected to the second threaded rod, a mounting frame is welded and fixed to the push plate, a second hydraulic rod is installed and fixed on the mounting frame, a connecting block is fixedly connected to the second hydraulic rod, a threaded hole is provided on the connecting block, a third threaded rod is threadedly connected to the rotating frame, a second limit frame is welded and fixed to the rotating frame, a second connecting shaft is rotatably connected to the second limit frame, a second volute spring is welded and fixed in the second limit frame, the inner end of the second volute spring is welded and fixed to the second connecting shaft, the second connecting shaft is welded and fixed to the connecting block, a protective frame is fixedly connected to the rotating frame, and the protective frame is made of transparent material.

[0012] As a preferred solution of the present invention, the push plates are symmetrically distributed on both sides of the mounting frame, the push plates correspond one-to-one with the connecting plates through the second threaded rods, the threaded holes are symmetrically distributed on both sides of the connecting blocks, and the threaded holes correspond one-to-one with the third threaded rods.

[0013] As a preferred solution of the present invention, wherein: a protective plate is bolted to the protective frame, a roller is rotatably connected to the protective plate, a second fixed plate is welded and fixed to the protective plate, a dial is fixedly connected to the second fixed plate, a center axis is rotatably connected to the second fixed plate, a benchmark is welded and fixed to the center axis, a counterweight is fixedly connected to the benchmark, a second slot is opened on the telescopic sleeve, a third hydraulic rod is installed and fixed on the top of the support plate, and the end of the third hydraulic rod is fixedly connected to the first fixed frame.

[0014] As a preferred solution of the present invention, the center of the dial and the center of the central axis are located at the same center point, the dial is fixed at the center of the second fixed plate, the length of the benchmark is less than the length of the second fixed plate, the dial and the central axis are symmetrically distributed on both sides of the second fixed plate, and the central axis corresponds one-to-one with the counterweight through the benchmark.

[0015] The working principle and beneficial effects of the present invention are: 1. The present invention is provided with a positioning and calibration component, by inserting each positioning frame into the soil at the bottom of the foundation pit and pushing the support plate downward to fit with the mounting plate, the first piston can be used to automatically push the air in the air storage frame into each plug tube, thereby pushing the second plug on each second piston to automatically move outward and insert into the soil, so that the positioning and fixing work of the measuring device can be completed conveniently and stably, and the problem of deviation in the measurement result caused by position displacement or tilt of the measuring device during subsequent work can be effectively avoided; and by rotating each first threaded rod separately, the horizontal calibration work of the entire measuring device can be completed conveniently and accurately in combination with the spirit level, thereby ensuring the accuracy of the subsequent foundation pit slope measurement work, and increasing the practicality and accuracy of the measuring device.

[0016] 2. The present invention is provided with a multifunctional measuring component, which can use the first hydraulic rod to push the telescopic sleeve to stably extend, and then drive the support plates on both sides of the telescopic sleeve to fit the upper and lower parts of the foundation pit slopes at different depths. Combined with the dial and the benchmark, the slope of the foundation pit slopes at different depths can be conveniently and stably measured as a whole, effectively improving the practicality and applicability of the measuring device; and rotating the third threaded rod to disengage from the threaded hole can release the limit on the rotating frame, and combined with the drive of the second hydraulic rod, the protective frame can be pushed to move at a uniform speed along the slope surface of the foundation pit slope, and combined with the dial and the benchmark in the protective frame, the slope surface of the foundation pit slope can be automatically and stably measured comprehensively, and the flatness detection of the overall slope surface is realized, effectively improving the measurement efficiency and measurement accuracy of the measuring device, and increasing the diversity and convenience of use of the measuring device.

[0017] 3. The present invention is provided with a second fixing frame and a second clamping rod. After the work is completed, the telescopic sleeve can be retracted and rotated to the top of the support plate. At this time, with the cooperation of the second clamping rod and the second clamping groove, the telescopic sleeve can be clamped and fixed, and the overall folding of the measuring device can be completed conveniently and stably, thereby ensuring the convenience of subsequent carrying and transportation of the measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection structure between the push plate and the mounting frame of the present invention; Figure 3 It is a schematic diagram of the connection structure between the positioning frame and the first plug-in block of the present invention; Figure 4 It is a schematic diagram of the connection structure between the first fixing frame and the third hydraulic rod of the present invention; Figure 5 It is a schematic diagram of the connection structure between the mounting plate and the first threaded rod of the present invention; Figure 6 The present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 It is a schematic diagram of the connection structure between the positioning frame and the positioning plate of the present invention; Figure 8 It is a schematic diagram of the connection structure between the second piston and the second plug block of the present invention; Fig. 9 It is a schematic diagram of the connection structure between the first piston and the limit rod of the present invention; Fig.10 The present invention Fig. 9 The enlarged structural diagram at B in the middle; Fig.11 It is a schematic diagram of the connection structure of the rotating shaft and the connecting plate of the present invention; Fig.12 It is a schematic diagram of the connection structure between the first volute spring and the first connecting shaft of the present invention; Fig.13 It is a schematic diagram of the connection structure between the telescopic sleeve plate and the second slot of the present invention; Fig.14 It is a schematic diagram of the connection structure between the telescopic sleeve and the first hydraulic rod of the present invention; Fig.15 It is a schematic diagram of the connection structure between the second volute spring and the second connecting shaft of the present invention; Fig.16 It is a schematic diagram of the connection structure between the second fixing plate and the dial of the present invention; Fig.17 It is a schematic diagram of the connection structure of the benchmark and the counterweight block of the present invention.

[0019] In the figure: 1, mounting plate; 2, positioning and calibration assembly; 201, first threaded rod; 202, positioning frame; 203, first plug block; 204, limit plate; 205, positioning plate; 206, gas storage frame; 207, first return spring; 208, first piston; 209, limit rod; 210, connecting hose; 211, first air duct; 212, second air duct; 213, plug tube; 214, rubber plate; 215, second return spring; 216, second piston; 217, second plug block; 3, first slot; 4, support plate; 5, through slot; 6, first fixing plate; 7, first connecting spring; 8, first fixing rod; 9, multifunctional measuring assembly; 901, first fixing frame; 902, first limit frame; 903, first scroll spring; 904, first connecting shaft; 905, telescopic sleeve; 906, first a hydraulic rod; 907, a support rod; 908, a support plate; 909, a third plug block; 910, a connecting plate; 911, a second threaded rod; 912, a push plate; 913, a mounting frame; 914, a second hydraulic rod; 915, a connecting block; 916, a threaded hole; 917, a rotating frame; 918, a third threaded rod; 919, a second limiting frame; 920, a second volute spring; 921, a second connecting shaft; 922, a protective frame; 923, a protective plate; 924, a roller; 925, a second fixed plate; 926, a dial; 927, a central axis; 928, a benchmark; 929, a counterweight; 930, a second slot; 931, a third hydraulic rod; 10, a second fixed frame; 11, a second connecting spring; 12, a second clamping rod; 13, a rotating shaft; 14, a connecting plate; 15, a level; 16, a battery. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and the best embodiment. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the invention.

[0021] In the description of the invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0022] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1: Figure 1 to Figure 17 As shown, this embodiment proposes a foundation pit slope measuring device with a calibration structure, including a mounting plate 1 and a supporting plate 4, a positioning calibration component 2 is installed on the mounting plate 1, and the positioning calibration component 2 includes a first threaded rod 201, the first threaded rod 201 is threadedly connected to the mounting plate 1, the bottom end of the first threaded rod 201 is rotatably connected to a positioning frame 202, the bottom end of the positioning frame 202 is welded and fixed with a first plug block 203, the top surface of the positioning frame 202 is welded and fixed with a limiting plate 204, and the top side end of the positioning frame 202 is welded and fixed with a positioning plate 20 5. A gas storage frame 206 is welded and fixed in the mounting plate 1. A first return spring 207 is welded and fixed on the inner bottom end surface of the gas storage frame 206. A first piston 208 is fixedly connected to the first return spring 207. A limit rod 209 is fixedly connected to the top end surface of the first piston 208. The limit rod 209 penetrates and is slidably connected in the gas storage frame 206. The top end of the limit rod 209 is welded and fixed to the bottom end surface of the support plate 4. A multifunctional measuring component 9 is installed on the support plate 4. A second fixing frame 10 is welded and fixed on the support plate 4. The second fixing frame 10 is welded A second connecting spring 11 is fixed, a second clamping rod 12 is welded and fixed on the second connecting spring 11, and the second clamping rod 12 is limitedly slidably connected to the second fixing frame 10. A rotating shaft 13 is rotatably connected to the support plate 4, and a connecting plate 14 is welded and fixed on the top end of the rotating shaft 13. A level 15 is bolted to the top end surface of the connecting plate 14, and a battery 16 is bolted to the top end surface of the support plate 4. The positioning and calibration component 2 can conveniently and stably complete the positioning and fixing work of the measuring device, and can conveniently and accurately complete the horizontal calibration work of the entire measuring device, thereby ensuring the accuracy of subsequent foundation pit slope measurement work, and increasing the practicality and accuracy of the measuring device; and combined with the multifunctional measuring component 9, the slope of the foundation pit slope of different depths can be conveniently and stably measured as a whole, effectively improving the practicality and applicability of the measuring device, and at the same time, the slope of the foundation pit slope can be automatically and stably measured comprehensively, and the flatness detection of the overall slope surface is realized, effectively improving the measurement efficiency and measurement accuracy of the measuring device, and increasing the diversity and convenience of the use of the measuring device.

[0024] Example 2: Figure 1 to Figure 17As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a foundation pit slope measuring device with a calibration structure.

[0025] In this embodiment, four first threaded rods 201 are provided, and the four first threaded rods 201 are evenly distributed around the mounting plate 1. The first threaded rods 201 correspond to the positioning frame 202 one by one. The first threaded rod 201 is connected to the top center of the positioning frame 202, and the limit plate 204 and the positioning plate 205 are symmetrically distributed on both sides of the top of the positioning frame 202. The limit plate 204 is slidably connected in the mounting plate 1, and the limit rod 209 is connected to the top center of the first piston 208. The cross-section of the limit rod 209 is rectangular. By rotating each first threaded rod 201 individually and combining with the level 15, the overall horizontal calibration of the measuring device can be completed conveniently and accurately.

[0026] In this embodiment, the first piston 208 is slidably connected in the gas storage frame 206, and the bottom side end of the gas storage frame 206 is connected to a connecting hose 210, and the bottom of the connecting hose 210 is fixedly connected to a first air pipe 211, and the first air pipe 211 is connected to a second air pipe 212, and the second air pipe 212 is connected to a plug tube 213, and the plug tube 213 and the first air pipe 211 are both fixedly connected in the positioning frame 202, and a rubber plate 214 is fixedly connected in the plug tube 213, and a second return spring 215 is welded and fixed in the plug tube 213, and a second piston 216 is fixedly connected to the second return spring 215, and the second piston 216 is slidably connected in the plug tube 213, and the first The second piston 216 is fixedly connected with a second plug block 217, the connecting hose 210 corresponds to the positioning frame 202 one by one through the first air pipe 211, the second air pipes 212 are symmetrically distributed on both sides of the first air pipe 211, the second air pipes 212 correspond to the plug tubes 213 one by one, the rubber plates 214 are symmetrically distributed on both sides of the plug tube 213, the rubber plates 214 on both sides fit each other, and the first piston 208 is used to automatically push the air in the air storage frame 206 into each plug tube 213, thereby pushing the second plug blocks 217 on each second piston 216 to automatically move outward and insert into the soil, so that the positioning and fixing work of the measuring device can be completed conveniently and stably.

[0027] In this embodiment, a through groove 5 is opened on the support plate 4, a first fixing plate 6 is welded and fixed on the bottom end surface of the support plate 4, a first connecting spring 7 is welded and fixed on the first fixing plate 6, a first clamping rod 8 is welded and fixed on the first connecting spring 7, a first clamping groove 3 is opened on the side end of the mounting plate 1, the first clamping rod 8 passes through the first fixing plate 6 for limiting sliding connection, the end of the first clamping rod 8 is clamped and connected in the first clamping groove 3, the first fixing plate 6 is symmetrically distributed on both sides of the bottom of the support plate 4, the first fixing plate 6 corresponds to the first clamping groove 3 one by one through the first clamping rod 8, the support plate 4 is fitted with the mounting plate 1, and with the cooperation of the first clamping rod 8 and the first clamping groove 3, the clamping and fixing of the support plate 4 can be conveniently completed, thereby ensuring the stability of the subsequent working state of the positioning and calibration component 2.

[0028] In this embodiment, the multifunctional measuring assembly 9 includes a first fixed frame 901 and a rotating frame 917, a first limit frame 902 is welded and fixed on the first fixed frame 901, a first connecting shaft 904 is rotatably connected to the first limit frame 902, a first volute spring 903 is welded and fixed in the first limit frame 902, an inner end of the first volute spring 903 is welded and fixed on the first connecting shaft 904, a telescopic sleeve 905 is welded and fixed on the first connecting shaft 904, a first hydraulic rod 906 is installed and fixed on the inner middle part of the telescopic sleeve 905, a support rod 907 is welded and fixed on the telescopic sleeve 905, and a A support plate 908 is provided with a third plug block 909 welded and fixed on the support plate 908. Two support rods 907 are arranged. The two support rods 907 are distributed at both ends of the telescopic sleeve 905. The support rods 907 correspond to the support plate 908 one by one. The third plug blocks 909 are equidistantly distributed on the support plate 908. The cross section of the third plug block 909 is an isosceles triangle. The first hydraulic rod 906 can push the telescopic sleeve 905 to stably extend, and then can drive the support plates 908 on both sides of the telescopic sleeve 905 to fit the upper and lower parts of the foundation pit slopes at different depths, so that the slope of the foundation pit slopes at different depths can be conveniently and stably measured as a whole.

[0029] In this embodiment, a connecting plate 910 is welded and fixed on the telescopic sleeve 905, a second threaded rod 911 is threadedly connected on the connecting plate 910, a push plate 912 is rotatably connected to the second threaded rod 911, a mounting frame 913 is welded and fixed on the push plate 912, a second hydraulic rod 914 is mounted and fixed on the mounting frame 913, a connecting block 915 is fixedly connected to the second hydraulic rod 914, a threaded hole 916 is provided on the connecting block 915, a third threaded rod 918 is threadedly connected to the rotating frame 917, an end of the third threaded rod 918 is threadedly connected in the threaded hole 916, a second limiting frame 919 is welded and fixed on the rotating frame 917, a second connecting shaft 921 is rotatably connected to the second limiting frame 919, a second volute spring 920 is welded and fixed in the second limiting frame 919, and the second volute spring 9 The inner end of 20 is welded and fixed on the second connecting shaft 921, and the second connecting shaft 921 is welded and fixed on the connecting block 915. A protective frame 922 is fixedly connected to the rotating frame 917, and the protective frame 922 is made of transparent material. The push plates 912 are symmetrically distributed on both sides of the mounting frame 913. The push plates 912 correspond one-to-one with the connecting plates 910 through the second threaded rod 911. The threaded holes 916 are symmetrically distributed on both sides of the connecting block 915. The threaded holes 916 correspond one-to-one with the third threaded rod 918. By rotating the third threaded rod 918 to disengage from the threaded holes 916, the limit on the rotating frame 917 can be released. Combined with the drive of the second hydraulic rod 914, the protective frame 922 can be pushed to move at a uniform speed along the slope of the foundation pit, thereby enabling the slope of the foundation pit slope to be automatically and stably measured comprehensively.

[0030] In this embodiment, a protective plate 923 is bolted to the protective frame 922, a roller 924 is rotatably connected to the protective plate 923, a second fixed plate 925 is welded and fixed to the protective plate 923, a dial 926 is fixedly connected to the second fixed plate 925, a central axis 927 is rotatably connected to the second fixed plate 925, a benchmark 928 is welded and fixed to the central axis 927, a counterweight 929 is fixedly connected to the benchmark 928, a second slot 930 is provided on the telescopic sleeve 905, a third hydraulic rod 931 is fixedly installed on the top of the support plate 4, an end of the third hydraulic rod 931 is fixedly connected to the first fixed frame 901, the first fixed frame 901 is fitted with the support plate 4, an end of the second clamping rod 12 is clamped and connected in the second slot 930, and the center of the dial 926 is aligned with the central axis 9 27 are located at the same center point, the scale plate 926 is fixed at the center of the second fixed plate 925, the length of the benchmark 928 is less than the length of the second fixed plate 925, the scale plate 926 and the center axis 927 are symmetrically distributed on both sides of the second fixed plate 925, the center axis 927 corresponds to the counterweight block 929 one by one through the benchmark 928, the vertical center line of the rotating shaft 13, the vertical center line of the connecting plate 14, the vertical center line of the level 15 and the vertical center line of the support plate 4 are located on the same vertical line, under the action of gravity, the counterweight block 929 can drive the benchmark 928 on the center axis 927 to always remain vertical, under the vertical action of the benchmark 928, combined with the scale of the scale plate 926 on the second fixed plate 925, the overall slope of the foundation pit slope can be measured conveniently and accurately.

[0031] It should be noted that the present invention is a foundation pit slope measuring device with a calibration structure. First, when the device starts working, the staff can place it at the bottom of the foundation pit and close to the foundation pit slope. Then the staff can press down the mounting plate 1 until each positioning frame 202 and the corresponding first plug block 203 are inserted into the soil at the bottom of the foundation pit, and the positioning plates 205 on both sides of the top of the positioning frame 202 are in support contact with the soil surface to ensure that each positioning frame 202 is inserted smoothly. Then the staff can pull the first clamping rod 8 on the first fixing plate 6 outward and push it downward at the same time. The support plate 4, under the action of the movement of the support plate 4, can push the first piston 208 to move downward through the limit rod 209, so that the air in the air storage frame 206 can be pushed into the connecting hose 210, and then the air is pushed into the corresponding plug tube 213 through each second air guide tube 212 on the first air guide tube 211. Under the action of air pressure, the second piston 216 can push the second plug 217 to automatically move outward and stably insert it into the soil. At this time, under the joint action of each positioning frame 202 and multiple second plugs 217, the positioning and fixing work of the measuring device can be completed conveniently and stably; After the device is positioned and fixed, the staff can observe the level 15 and rotate the first threaded rods 201 around the mounting plate 1 separately. Under the action of the threaded rotation of the first threaded rods 201, the four corners of the mounting plate 1 can be lifted separately, so as to achieve the horizontal calibration of the mounting plate 1, and under the action of the rotating shaft 13, the level 15 on the connecting plate 14 can be ensured to rotate stably. By using the rotation measurement of the level 15 and combining the rotation adjustment of each first threaded rod 201, the mounting plate 1 can be conveniently and accurately calibrated comprehensively, thereby ensuring the accuracy of the subsequent foundation pit slope measurement work; Then the staff can pull the second clamping rod 12 on the second fixing frame 10 outwards and make it move out of the second clamping groove 930 on the telescopic sleeve 905. At this time, with the assistance of the staff, combined with the first volute spring 903 in the first limit frame 902, the telescopic sleeve 905 on the first connecting shaft 904 can be driven to automatically rotate and lift up, and the support plates 908 on the support rods 907 at both ends can be driven to move to fit the slope surface of the foundation pit slope. At this time, by driving the first hydraulic rod 906 in the telescopic sleeve 905, the first hydraulic rod 906 can be used to push the telescopic sleeve 905 to stably extend, thereby driving the support plates 908 on both sides of the telescopic sleeve 905 to fit the upper and lower parts of the foundation pit slopes at different depths. Then, the staff can drive the third hydraulic rod 931 on the support plate 4. Under the driving action of the third hydraulic rod 931, the staff can push the telescopic sleeve 905 to the slope through the first fixed frame 901 to ensure that the support plates 908 on the support rods 907 at both ends can fit closely with the slope. At this time, the support plates 908 combined with the third plug blocks 909 can be stably fixed on the slope, and the telescopic sleeve 905 is parallel to the slope. At this time, the protective frame 922 is also parallel to the slope. Under the action of gravity, the counterweight block 929 can drive the benchmark 928 on the central axis 927 to always remain vertical. Under the vertical action of the benchmark 928, combined with the scale of the dial 926 on the second fixed plate 925, the overall slope of the foundation pit slope can be conveniently and accurately measured. After the overall slope measurement of the foundation pit slope is completed, the staff can rotate the second threaded rods 911 on both sides. Under the threaded rotation of the second threaded rods 911 on both sides, the mounting frame 913 can be pushed toward the slope surface through the push plate 912, and then the protection frame 922 on the rotating frame 917 can be driven to move toward the slope surface through the connecting block 915 on the second hydraulic rod 914, until the roller 924 on the protective plate 923 fits the slope surface, and then the staff can rotate the third threaded rods 918 on both sides of the rotating frame 917 and make it move away from the threaded holes 916 on the connecting block 915, and release the limit of the rotating frame 917. At this time, under the elastic action of the second volute spring 920 inside the second limit frame 919, the second connecting shaft 921 can be applied with a rotational force toward the slope surface, and then the roller 924 on the protective plate 923 can be driven by the protective frame 922 to always be in stable contact with the slope surface, and the protective frame 922 can be stably rotated through the second connecting shaft 921 on the rotating frame 917; Therefore, by driving the second hydraulic rod 914 on the mounting frame 913, the protection frame 922 can be driven to move uniformly from bottom to top or from top to bottom along the slope through the connecting block 915 and the rotating frame 917. During the movement of the protection frame 922, it is always parallel to and fits the slope, so that the slope of the foundation pit side slope can be automatically and stably measured comprehensively through the benchmark 928 and the dial 926, and the flatness detection of the entire slope is realized, which effectively improves the measurement efficiency and measurement accuracy of the measuring device; After the measurement work is completed, the third threaded rod 918 on the rotating frame 917 can be rotated in the reverse direction to make it threadedly rotated into the threaded hole 916 on the connecting block 915 again, and the second hydraulic rod 914 can be driven to drive the protective frame 922 to move and reset, and then the first hydraulic rod 906 can be driven to drive the telescopic sleeve 905 to shrink and reset. Subsequently, the staff can rotate and reset the telescopic sleeve 905 by dialing the telescopic sleeve 905, and the staff can pull the second clamping rod 12 on the second fixed frame 10 in advance. After the telescopic sleeve 905 rotates and resets, under the elastic action of the second connecting spring 11, the second clamping rod 12 can be driven to automatically engage with the second clamping groove 930 on the telescopic sleeve 905, completing the clamping and fixing of the telescopic sleeve 905; Similarly, by pulling the first clamping rod 8 on the first fixing plate 6 outward to make it move out of the first clamping groove 3 on the mounting plate 1, and pulling the mounting plate 1 upward, the mounting plate 1 can now drive the first piston 208 to move upward and reset through the limiting rod 209. Under the elastic action of the air pressure and the second reset spring 215, each second plug block 217 can be driven to automatically move and be stored in the plug tube 213 to complete the reset. Then the staff can pull the entire measuring device upward to make it move out of the foundation pit and complete the disassembly, which is convenient for subsequent reuse.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A foundation pit slope measuring device with a calibration structure, characterized in that: The invention comprises a mounting plate (1) and a supporting plate (4), wherein a positioning calibration component (2) is mounted on the mounting plate (1), wherein the positioning calibration component (2) comprises a first threaded rod (201), wherein the first threaded rod (201) is threadedly connected to the mounting plate (1), wherein the bottom end of the first threaded rod (201) is rotatably connected to a positioning frame (202), wherein a first plug block (203) is welded and fixed to the bottom end of the positioning frame (202), wherein a limiting plate (204) is welded and fixed to the top surface of the positioning frame (202), wherein a positioning plate (205) is welded and fixed to the top side end of the positioning frame (202), wherein an air storage frame (206) is welded and fixed inside the mounting plate (1), wherein a first return spring (207) is welded and fixed to the inner bottom surface of the air storage frame (206), wherein the first return spring (207) is fixedly connected to a first piston (208) ), a limit rod (209) is fixedly connected to the top end surface of the first piston (208), the limit rod (209) penetrates and is slidably connected in the gas storage frame (206), the top end of the limit rod (209) is welded and fixed to the bottom end surface of the support plate (4), a multifunctional measuring assembly (9) is mounted on the support plate (4), a second fixing frame (10) is welded and fixed to the support plate (4), a second connecting spring (11) is welded and fixed to the second fixing frame (10), a second clamping rod (12) is welded and fixed to the second connecting spring (11), a rotating shaft (13) is rotatably connected to the support plate (4), a connecting plate (14) is welded and fixed to the top end of the rotating shaft (13), a level (15) is bolted to the top end surface of the connecting plate (14), and a storage battery (16) is bolted to the top end surface of the support plate (4).

2. The foundation pit slope measuring device with a calibration structure according to claim 1, characterized in that: Four first threaded rods (201) are provided, and the four first threaded rods (201) are evenly distributed around the mounting plate (1). The first threaded rods (201) correspond to the positioning frames (202) one by one. The first threaded rods (201) are connected to the top center of the positioning frame (202). The limiting plates (204) and the positioning plates (205) are symmetrically distributed on both sides of the top of the positioning frame (202). The limiting plates (204) are limitedly slidably connected in the mounting plate (1). The limiting rod (209) is connected to the top center of the first piston (208), and the cross section of the limiting rod (209) is rectangular.

3. The foundation pit slope measuring device with a calibration structure according to claim 2, characterized in that: The first piston (208) is slidably connected in the gas storage frame (206); a connecting hose (210) is connected to the bottom side end of the gas storage frame (206); a first air guide tube (211) is fixedly connected to the bottom of the connecting hose (210); a second air guide tube (212) is connected to the first air guide tube (211); a plug tube (213) is connected to the second air guide tube (212); the plug tube (213) and the first air guide tube (211) are both fixedly connected in the positioning frame (202); a rubber plate (214) is fixedly connected in the plug tube (213); a second return spring (215) is welded and fixed in the plug tube (213); a second piston (216) is fixedly connected to the second return spring (215); the second piston (216) is slidably connected in the plug tube (213); and a second plug block (217) is fixedly connected to the second piston (216).

4. The foundation pit slope measuring device with a calibration structure according to claim 3, characterized in that: The connecting hose (210) corresponds one-to-one with the positioning frame (202) via the first air guide tube (211); the second air guide tube (212) is symmetrically distributed on both sides of the first air guide tube (211); the second air guide tube (212) corresponds one-to-one with the plug tube (213); the rubber plates (214) are symmetrically distributed on both sides of the plug tube (213); and the rubber plates (214) on both sides are in contact with each other.

5. The foundation pit slope measuring device with a calibration structure according to claim 1, characterized in that: A first fixing plate (6) is welded and fixed on the bottom end surface of the support plate (4), a first connecting spring (7) is welded and fixed on the first fixing plate (6), a first clamping rod (8) is welded and fixed on the first connecting spring (7), a first clamping groove (3) is opened at the side end of the mounting plate (1), the first fixing plates (6) are symmetrically distributed on both sides of the bottom of the support plate (4), and the first fixing plates (6) correspond to the first clamping groove (3) one by one through the first clamping rod (8).

6. The foundation pit slope measuring device with a calibration structure according to claim 1, characterized in that: The multifunctional measuring assembly (9) comprises a first fixed frame (901) and a rotating frame (917); a first limiting frame (902) is welded and fixed to the first fixed frame (901); a first connecting shaft (904) is rotatably connected to the first limiting frame (902); a first volute spring (903) is welded and fixed inside the first limiting frame (902); an inner end of the first volute spring (903) is welded and fixed to the first connecting shaft (904); a telescopic sleeve plate (905) is welded and fixed to the first connecting shaft (904); the telescopic sleeve plate (905) is welded and fixed to the first connecting shaft (904); ), a first hydraulic rod (906) is installed and fixed at the inner middle part of the telescopic sleeve (905), a support rod (907) is welded and fixed to the telescopic sleeve (905), a support plate (908) is welded and fixed to the support rod (907), a third plug block (909) is welded and fixed to the support plate (908), two support rods (907) are provided, and the two support rods (907) are distributed at both ends of the telescopic sleeve (905), the support rods (907) correspond to the support plates (908) one by one, and the third plug blocks (909) are equidistantly distributed on the support plate (908).

7. The foundation pit slope measuring device with a calibration structure according to claim 6, characterized in that: A connecting plate (910) is welded and fixed to the telescopic sleeve (905), a second threaded rod (911) is threadedly connected to the connecting plate (910), a push plate (912) is rotatably connected to the second threaded rod (911), a mounting frame (913) is welded and fixed to the push plate (912), a second hydraulic rod (914) is mounted and fixed to the mounting frame (913), a connecting block (915) is fixedly connected to the second hydraulic rod (914), a threaded hole (916) is provided on the connecting block (915), and a third hydraulic rod (914) is threadedly connected to the rotating frame (917). A threaded rod (918), a second limit frame (919) is welded and fixed on the rotating frame (917), a second connecting shaft (921) is rotatably connected to the second limit frame (919), a second volute spring (920) is welded and fixed inside the second limit frame (919), the inner end of the second volute spring (920) is welded and fixed on the second connecting shaft (921), the second connecting shaft (921) is welded and fixed on the connecting block (915), and a protective frame (922) is fixedly connected to the rotating frame (917), and the protective frame (922) is made of a transparent material.

8. The foundation pit slope measuring device with a calibration structure according to claim 7, characterized in that: The push plates (912) are symmetrically distributed on both sides of the mounting frame (913); the push plates (912) correspond one-to-one with the connecting plates (910) via the second threaded rods (911); the threaded holes (916) are symmetrically distributed on both sides of the connecting block (915); the threaded holes (916) correspond one-to-one with the third threaded rods (918).

9. The foundation pit slope measuring device with a calibration structure according to claim 8, characterized in that: A protective plate (923) is bolted to the protective frame (922), a roller (924) is rotatably connected to the protective plate (923), a second fixed plate (925) is welded and fixed to the protective plate (923), a dial (926) is fixedly connected to the second fixed plate (925), a central shaft (927) is rotatably connected to the second fixed plate (925), a benchmark (928) is welded and fixed to the central shaft (927), a counterweight (929) is fixedly connected to the benchmark (928), a second slot (930) is provided on the telescopic sleeve (905), a third hydraulic rod (931) is fixedly mounted on the top of the support plate (4), and an end of the third hydraulic rod (931) is fixedly connected to the first fixed frame (901).

10. The foundation pit slope measuring device with a calibration structure according to claim 9, characterized in that: The center of the circle of the scale plate (926) and the center of the circle of the central axis (927) are located at the same center point. The scale plate (926) is fixed to the center of the second fixed plate (925). The length of the reference rod (928) is less than the length of the second fixed plate (925). The scale plate (926) and the central axis (927) are symmetrically distributed on both sides of the second fixed plate (925). The central axis (927) corresponds one-to-one with the counterweight (929) through the reference rod (928).

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