Measuring device for engineering survey

Abstract

The application discloses a measuring device for engineering survey, and particularly relates to the field of engineering survey measurement, which comprises a fixing seat, supporting legs rotatably installed at the bottom of the fixing seat, a mounting seat installed on the fixing seat, an adjusting mechanism arranged between the fixing seat and the mounting seat, a measuring instrument body installed on the mounting seat, a hollow interior of the mounting seat, a sensing mechanism installed in the interior of the mounting seat, liquid sensing medium filled in the interior of the mounting seat, the sensing mechanism for monitoring the liquid level of the liquid sensing medium and controlling the adjusting mechanism to adjust the inclination of the mounting seat, an adjusting groove formed at the top of the mounting seat, a rotary driving assembly installed in the interior of the adjusting groove, and a movable plate movably arranged in the interior of the mounting seat. The application improves the liquidity of the liquid sensing medium at low temperature through heating, avoids the freezing and adhesion of the liquid sensing medium to the outside of the sensing mechanism through scraping treatment, thereby improving the adjustment response speed, avoiding sensing failure, and ensuring the leveling effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engineering surveying measurement, more particularly, the present application relates to a kind of engineering surveying measurement device. BACKGROUND

[0002] Engineering surveying purpose is to provide detailed geotechnical engineering data and geotechnical parameters for building design, to make geotechnical engineering analysis and evaluation for building foundation, to make demonstration and suggestion for foundation design, ground treatment and foundation pit excavation support scheme.

[0003] GPS instrument (especially RTK technology) has become the core tool of modern engineering surveying measurement, and its high efficiency, high precision and digital advantage has significantly promoted the transformation of engineering surveying from traditional manual mode to intelligent and automatic mode.

[0004] Referring to the authorized patent publication No.CN118151182B, a kind of engineering surveying measurement device, including body, GPS instrument assembly is arranged on the body, the GPS instrument assembly includes internal hollow and closed horizontal box, the horizontal box is provided with not full liquid, at least three inductive chips for inducting liquid are arranged on the inner wall of the horizontal box, and GPS instrument body is arranged on the horizontal box;When the GPS instrument body is in horizontal state, the inductive chip does not induct liquid;When the GPS instrument body is not in horizontal state, at least one inductive chip inducts liquid;The lower side of the horizontal box is provided with a telescopic assembly corresponding to the number and position of the inductive chip, and a motor for driving the telescopic assembly to extend and shorten is arranged in the body.

[0005] The above-mentioned prior art adjusts the horizontal box to be inclined, at least one inductive chip inducts liquid, the inductive chip inducting liquid sends a signal to the corresponding telescopic assembly, the telescopic assembly extends until the corresponding inductive chip does not induct liquid, and stops when all inductive chips do not induct liquid, at this time, the GPS instrument is in horizontal state.

[0006] Since the above-mentioned prior art is basically used outdoors, when in winter, the flowability of the liquid medium in the horizontal box decreases, which causes the reaction speed of the liquid medium to decrease during leveling, and when the horizontal box is adjusted from inclined to horizontal, the liquid medium slowly flows downward from the outside of the inductive chip. In severe cases, the slowly flowing liquid medium may freeze and adhere to the outside of the inductive chip, causing the inductive chip to always induct liquid medium and malfunction, affecting the leveling effect. SUMMARY

[0007] The measurement device for engineering investigation provided by the application solves the problem that the flowability of the liquid medium in the horizontal box is reduced, resulting in a decrease in the reaction speed of the liquid medium during leveling when the existing measurement device for engineering investigation is used in winter.

[0008] To achieve the above object, the application provides the following technical scheme: a measurement device for engineering investigation, comprising a fixing base, a supporting leg rotatably installed at the bottom of the fixing base, an installation base installed on the fixing base, an adjusting mechanism arranged between the fixing base and the installation base, a measuring instrument body installed on the installation base, the inside of the installation base being hollow, a sensing mechanism installed in the inside of the installation base, the inside of the installation base being filled with a liquid sensing medium, the sensing mechanism being used for monitoring the liquid level of the liquid sensing medium and controlling the adjusting mechanism to adjust the inclination of the installation base, an adjusting groove being formed at the top of the installation base, a rotary driving assembly being installed in the inside of the adjusting groove, an activity plate movably arranged in the inside of the installation base, the rotary driving assembly being used for driving the activity plate to move vertically along the surface of the column, an alignment groove being formed at the edge of the activity plate, a column being fixedly arranged in the inside of the installation base, the column and the alignment groove being arranged in a concave-convex matching and corresponding manner and a plurality of groups being arranged, the sensing mechanism being installed in the inside of the column, a scraping assembly being installed in the inside of the alignment groove, the output end of the scraping assembly being in sliding contact with the surface of the column, a base being installed at the bottom end of the inside of the installation base, and a heating assembly being installed in the inside of the base.

[0009] In a preferred embodiment, the scraping assembly comprises a movable block, a through plate fixedly arranged at one side of the movable block, and a scraping sheet fixedly arranged at one end of the through plate and in sliding contact with the outer surface of the column.

[0010] In a preferred embodiment, the rotary driving assembly comprises an outer sleeve rotatably installed in the inside of the adjusting groove, a threaded column threadedly connected to the inside of the outer sleeve, the threaded column being fixedly connected to the activity plate, a limiting disc installed in the inside of the adjusting groove, an adjusting handle and a limiting protrusion fixedly arranged at the outer side of the outer sleeve, the adjusting handle extending to the outside of the adjusting groove, and the limiting protrusion being slidingly arranged in the inside of the sliding groove of the limiting disc.

[0011] In a preferred embodiment, an installation table is fixedly installed on the installation base, the measuring instrument body is detachably installed on the installation table, a guide groove is formed at the bottom of the installation table, and the top of the threaded column is slidingly arranged in the inside of the guide groove.

[0012] In a preferred embodiment, a compensation assembly is installed on the activity plate and used for compensating the liquid sensing medium in the inside of the installation base.

[0013] In a preferred implementation, the compensation assembly comprises a pump box, and the pump box is located in the middle of the movable plate, the compensation box is installed on the movable plate and located at the top edge of the movable plate, the pump box and the compensation box are connected by a connecting pipe, the bottom of the movable plate is provided with a compensation hole, and a plurality of groups of compensation holes and compensation boxes are correspondingly arranged.

[0014] In a preferred implementation, the base is provided with an elastic film, and the inside of the column is provided with a gas pump assembly, which is in communication with the elastic film.

[0015] In a preferred implementation, the bottom of the movable plate is provided with a vertical sensing assembly, and the detection end of the vertical sensing assembly is arranged downward, the bottom of the movable plate is provided with a detection hole corresponding to the position of the vertical sensing assembly, and the detection end of the vertical sensing assembly corresponds to the detection hole.

[0016] In a preferred implementation, the sensing mechanism comprises a horizontal sensing assembly, the surface of the column is provided with a detection window, one side of the column is provided with an air port, the outer side of the horizontal sensing assembly is fixedly provided with a guide ring, the inside of the guide ring is penetrated by a guide column, the inside of the column is provided with a linear drive assembly, and the output end of the linear drive assembly is fixedly connected with the horizontal sensing assembly.

[0017] In a preferred implementation, the bottom of the movable plate is provided with an elastic piece, the inside of the top shaft of the mounting seat is fixedly provided with a top shaft, the inside of the movable plate and the pump box is provided with a top shaft hole, the top shaft penetrates the inside of the top shaft hole, the movable block and the elastic piece are fixedly provided with a pull block, and the inside of the movable block is penetrated by a guide plate.

[0018] The beneficial effects of the present application are:

[0019] The present application improves the fluidity of the liquid sensing medium at low temperature by heating, avoids the liquid sensing medium from being frozen and adhered to the outside of the sensing mechanism by scraping treatment, thereby improving the adjustment reaction speed, avoiding sensing failure, and ensuring the leveling effect.

[0020] The present application compensates for the set error to be reasonable when the liquid sensing medium evaporates quickly.

[0021] When the movable plate moves upward, the bottom end of the top shaft bends the elastic piece, so that the elastic piece bends downward, and the arc-shaped elastic piece facilitates the liquid sensing medium adhered to the bottom of the movable plate to drop quickly. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0023] Figure 2 It is a schematic diagram of the overall upper structure of the present application.

[0024] Figure 3 Fig. 1 is a schematic diagram of the overall side structure of the present application.

[0025] Figure 4 Fig. 2 is a schematic diagram of the overall structure of the present application.

[0026] Figure 5 Fig. 3 is a schematic diagram of the internal structure of the mounting seat of the present application.

[0027] Figure 6 Fig. 4 is a schematic diagram of the base structure of the present application.

[0028] Figure 7 Fig. 5 is a schematic diagram of the outer sleeve structure of the present application.

[0029] Figure 8 Fig. 6 is a schematic diagram of the scraping assembly structure of the present application.

[0030] Figure 9 Fig. 7 is a schematic diagram of the stand structure of the present application.

[0031] Figure 10 Fig. 8 is a schematic diagram of the top structure of the movable plate of the present application.

[0032] Figure 11 Fig. 9 is a schematic diagram of the lateral sensing assembly structure of the present application.

[0033] Figure 12 Fig. 10 is a schematic diagram of the bottom structure of the movable plate of the present application.

[0034] The reference signs are as follows: 1, fixed seat; 11, support leg; 12, measuring instrument body; 2, mounting seat; 21, adjusting groove; 211, limiting disc; 22, movable plate; 221, telescopic groove; 222, scraping assembly; 2221, movable block; 2222, pulling block; 2223, through plate; 2224, scraping piece; 2225, guide plate; 223, alignment groove; 224, vertical sensing assembly; 2241, detection hole; 225, elastic piece; 226, pump box; 227, compensation box; 2271, compensation hole; 228, connecting pipe; 229, top shaft hole; 23, stand; 231, detection window; 232, lateral sensing assembly; 233, air port; 234, guide ring; 235, guide column; 236, linear drive assembly; 24, base; 241, heating assembly; 242, elastic film; 243, air pump assembly; 25, top shaft; 26, outer sleeve; 261, threaded column; 262, adjusting handle; 263, limiting protrusion; 3, mounting table; 31, guide groove; 4, adjusting mechanism. DETAILED DESCRIPTION

[0035] The application will be described in further detail below with reference to the drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0036] The application will be described in further detail below with reference to the drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content. Figures 1 to 9 A measuring device for engineering survey, comprising a fixed seat 1, a supporting leg 11 is rotatably installed at the bottom of the fixed seat 1, an installation seat 2 is installed on the fixed seat 1, an adjusting mechanism 4 is arranged between the fixed seat 1 and the installation seat 2, a measuring instrument body 12 is installed on the installation seat 2, the inside of the installation seat 2 is hollow, a sensing mechanism is installed in the inside of the installation seat 2, the inside of the installation seat 2 is filled with a liquid sensing medium, the sensing mechanism is used for monitoring the liquid level of the liquid sensing medium and controlling the adjusting mechanism 4 to adjust the inclination of the installation seat 2, an adjusting groove 21 is arranged at the top of the installation seat 2, a rotating driving assembly is installed in the inside of the adjusting groove 21, a movable plate 22 is movably arranged in the inside of the installation seat 2, the rotating driving assembly is used for driving the movable plate 22 to move vertically along the surface of a stand column 23, an alignment groove 223 is arranged at the edge of the movable plate 22, the stand column 23 is fixedly arranged in the inside of the installation seat 2, and the stand column 23 and the alignment groove 223 are concave-convex matched and correspondingly arranged with a plurality of groups, the sensing mechanism is installed in the inside of the stand column 23, a scraping assembly 222 is installed in the inside of the alignment groove 223, and the output end of the scraping assembly 222 slides close to the surface of the stand column 23, a base 24 is installed in the inside of the installation seat 2, and a heating assembly 241 is installed in the inside of the base 24.

[0037] It should be noted that the liquid level of the liquid induction medium and the induction end of the induction mechanism have a height difference, when the liquid level of the liquid induction medium is inclined, the induction mechanism monitors the highest end of the liquid induction medium, the adjusting mechanism 4 is horizontally installed on the fixed seat 1, the mounting seat 2 is connected with the output end of the adjusting mechanism 4, the column 23 and the alignment groove 223 are provided with at least four groups, the heating assembly 241 is located at the bottom of the liquid induction medium, and the specific structure of the adjusting mechanism 4 refers to the prior art. In this embodiment, the adjusting mechanism 4 comprises a plurality of linear actuators and corresponding controllers, the linear actuators are air cylinders or electric push rods, the plurality of linear actuators are arranged in pairs and correspond to each other, the column 23 and the alignment groove 223 are arranged in a plum blossom shape, and the liquid induction medium is selected: in an extremely cold environment (-40℃), thixotropic silicon oil X-52-162+PAO pour point depressant is used, and in a conventional low temperature environment (>-20℃), ethylene glycol mixed liquid (containing nano-SiO2 modification) is used. The controller of the heating assembly 241 adopts Omega CNi16-C24, supports PID self-setting, the heating assembly 241 can be replaced by a heating film of T-Global HSS series, the thickness is 0.25 mm, and the resistivity is 1.2Ω / sq; the outer surface of the column 23 is coated with PTFE (thickness 50μm) by plasma spraying to prevent adhesion; the induction mechanism is arranged in a six-point ring array (interval 60°), and STMicroelectronics LSM6DSOX six-axis IMU is used to assist in inclination calculation; the main component of the induction mechanism is a sensor, the calibration of the sensor uses Leica Nivel220 high-precision electronic level as a reference, the sensor preferably selects Sensirion SLF3S-400+FDC1004 combination, and the accuracy and cost are considered; multi-sensor data fusion (sampling rate≥1kHz) is realized through TMS320F28379D dual-core DSP, the sensor cavity is filled with epoxy resin EPO-TEK301-2, and the connector of the sensor selects SUPERSEAL1.5 series waterproof connector.

[0038] In the embodiment, the specific implementation scenario is that the support legs 11 are inserted into the ground to provide support, the liquid level of the liquid sensing medium is monitored by the induction mechanism inside the stand 23, when the inclination of the mounting base 2 exceeds the set error, the set error is the height difference between the horizontal liquid level of the liquid sensing medium and the induction end of the induction mechanism, at this time the induction mechanism monitors the highest end of the inclined liquid level of the liquid sensing medium, the mounting base 2 is leveled by driving the linear drive on the opposite side until the induction mechanism cannot monitor the liquid sensing medium, indicating that the mounting base 2 and the upper measuring instrument body 12 are in a horizontal state within the error range, when the whole is used outdoors in winter, first start the heating assembly 241 to raise the overall temperature of the base 24, heat and warm the liquid sensing medium, then drive the movable plate 22 downward by the rotary drive assembly, so that the output end of the scraping assembly 222 slides downward tightly against the surface of the stand 23, and the outer surface of the stand 23 is scraped, when the movable plate 22 is at the lowest position, the lowest point of the movable plate 22 does not contact the liquid sensing medium, this embodiment can realize stable horizontal retention of ±0.05° in-40℃~80℃ environment test, meet the standard requirements of engineering measurement, the whole improves the fluidity of the liquid sensing medium at low temperature by heating and warming, avoids the liquid sensing medium from freezing and adhering to the outside of the induction mechanism by scraping treatment, thereby improving the adjustment response speed, avoiding induction failure, and ensuring the leveling effect.

[0039] Further, the scraping assembly 222 comprises a movable block 2221, one side of the movable block 2221 is fixedly provided with a penetrating plate 2223, one end of the penetrating plate 2223 is fixedly provided with a scraping sheet 2224, and the scraping sheet 2224 is in sliding contact with the outer surface of the stand 23.

[0040] It should be noted that the penetrating plate 2223 slides through the inside of the alignment groove 223, and the scraping sheet 2224 is downwardly inclined.

[0041] Further, the rotary drive assembly comprises an outer sleeve 26, the outer sleeve 26 is rotationally installed in the inside of the adjusting groove 21, the inside of the outer sleeve 26 is threadedly connected with a threaded column 261, the threaded column 261 is fixedly connected with the movable plate 22, the inside of the adjusting groove 21 is installed with a limiting disc 211, the outer side of the outer sleeve 26 is fixedly provided with an adjusting handle 262 and a limiting protrusion 263, the adjusting handle 262 extends to the outside of the adjusting groove 21, and the limiting protrusion 263 is slidingly arranged in the sliding groove of the limiting disc 211.

[0042] It should be noted that the cross section of the limiting disc 211 is F-shaped, the sliding groove of the limiting disc 211 is open, the outer sleeve 26 is rotated by the adjusting handle 262, the threaded column 261 moves upward or downward, thereby driving the movable plate 22 to move upward or downward.

[0043] Further, the mounting base 2 is fixedly provided with a mounting table 3, the measuring instrument body 12 is detachably mounted on the mounting table 3, the bottom of the mounting table 3 is provided with a guide groove 31, and the top of the threaded column 261 is slidably arranged in the guide groove 31.

[0044] It should be noted that the measuring instrument body 12 is detachably mounted on the mounting table 3 by screws, and the guide groove 31 provides space for the vertical movement of the threaded column 261.

[0045] Due to the heating and warming of the heating assembly 241, the evaporation of the liquid sensing medium is accelerated, and the set error value is increased.

[0046] Referring to the drawings Figures 5 to 11 To solve this problem, the following technical solutions are also provided: the movable plate 22 is provided with a compensation assembly, and the compensation assembly is used to compensate the liquid sensing medium into the mounting base 2.

[0047] It should be noted that the compensation assembly is used to compensate the liquid sensing medium into the mounting base 2.

[0048] Further, the compensation assembly comprises a pump box 226, and the pump box 226 is located at the middle of the movable plate 22, the movable plate 22 is provided with a compensation box 227, and the compensation box 227 is located at the top edge of the movable plate 22, the pump box 226 and the compensation box 227 are connected through a connecting pipe 228, and the bottom of the movable plate 22 is provided with a compensation hole 2271, and a plurality of groups of compensation holes 2271 and compensation boxes 227 are correspondingly arranged.

[0049] It should be noted that referring to the drawings Figure 10 The inside of the pump box 226 is provided with a delivery pump, and the pump box 226 stores the liquid sensing medium, and the bottom of the compensation box 227 is provided with a pressure nozzle, and the pressure nozzle corresponds to the compensation hole 2271.

[0050] Further, the base 24 is provided with an elastic film 242, the inside of the stand column 23 is provided with an air pump assembly 243, and the air pump assembly 243 is in communication with the elastic film 242.

[0051] It should be noted that the air pump assembly 243 comprises two groups of air pumps, one group of air pumps is in communication with the elastic film 242 through an inflation port, and the other group of air pumps is in communication with the elastic film 242 through an air exhaust port.

[0052] Further, the bottom of the movable plate 22 is provided with a vertical sensing assembly 224, and the detection end of the vertical sensing assembly 224 is downwardly arranged, the bottom of the movable plate 22 is provided with a detection hole 2241 corresponding to the position of the vertical sensing assembly 224, and the detection end of the vertical sensing assembly 224 corresponds to the detection hole 2241.

[0053] It should be noted that the detection end of the vertical induction assembly 224 detects the liquid level of the liquid induction medium in the mounting seat 2 through the detection hole 2241.

[0054] Further, the induction mechanism includes a horizontal induction assembly 232, the surface of the stand 23 is provided with a detection window 231, one side of the stand 23 is provided with an air port 233, the outer side of the horizontal induction assembly 232 is fixedly provided with a guide ring 234, the inside of the guide ring 234 penetrates a guide column 235, the inside of the stand 23 is provided with a linear drive assembly 236, and the output end of the linear drive assembly 236 is fixedly connected with the horizontal induction assembly 232.

[0055] It should be noted that the linear drive assembly 236 drives the vertical movement of the horizontal induction assembly 232, and the guide ring 234 and the guide column 235 play a guiding role.

[0056] In this embodiment, the implementation scenario is specifically as follows: when the liquid induction medium in the mounting seat 2 decreases, the embodiment provides three compensation modes, the first mode is to directly supplement the liquid induction medium in the mounting seat 2 through the pump box 226 and the compensation box 227; the second mode is to inflate the inside of the elastic film 242 through one group of air pump assemblies 243, so that the elastic film 242 expands to raise the liquid level of the liquid induction medium; the third mode is to drive the horizontal induction assembly 232 to move downward through the linear drive assembly 236 to lower the monitoring position; the above three modes are all based on the liquid level data of the liquid induction medium in the mounting seat 2 detected by the vertical induction assembly 224, and the three supplement modes can be used alone to reduce the cost or used in cooperation to improve the efficiency, and the whole is compensated in the form of the compensation to compensate the set error to be reasonable when the liquid induction medium evaporates quickly.

[0057] When the liquid surface of the liquid induction medium is inclined, it will adhere to the bottom surface of the movable plate 22, causing the loss of the liquid induction medium and affecting the precision.

[0058] Referring to the description in the accompanying drawings Figure 5 , Figure 7 and Figure 12 , in order to solve the problem, the following technical scheme is also provided: the bottom of the movable plate 22 is provided with an expansion slot 221, the inside of the expansion slot 221 is provided with an elastic sheet 225, the inside top end of the mounting seat 2 is fixedly provided with a top shaft 25, the inside of the movable plate 22 and the pump box 226 is provided with a top shaft hole 229, the top shaft 25 penetrates the inside of the top shaft hole 229, a pull block 2222 is fixedly arranged between the movable block 2221 and the elastic sheet 225, and a guide plate 2225 penetrates the inside of the movable block 2221.

[0059] It should be noted that the pull block 2222 and the elastic sheet 225 are elastic members, and the guide plate 2225 is fixedly arranged on the inner wall of the expansion slot 221.

[0060] In the embodiment, the specific implementation scenario is that when the movable plate 22 moves upward, the bottom end of the top shaft 25 bends the elastic sheet 225, so that the elastic sheet 225 bends downward, and the arc-shaped elastic sheet 225 facilitates the liquid sensing medium adhered to the bottom of the movable plate 22 to drop quickly; when the movable plate 22 moves downward, the elastic sheet 225 restores to the original state and remains horizontal, at this time, the edge of the elastic sheet 225 pushes the movable block 2221 to move through the pull block 2222, the guide plate 2225 plays a guiding role, and the movable block 2221 drives the scraping sheet 2224 to tightly adhere to the outer surface of the stand column 23 through the through plate 2223.

[0061] Working principle:

[0062] I. Insert the supporting leg 11 into the ground to provide support, and monitor the liquid level of the liquid sensing medium through the sensing mechanism in the stand column 23; when the inclination of the mounting seat 2 exceeds the set error, at this time, the sensing mechanism monitors the highest end of the liquid sensing medium of the inclined liquid surface, and adjusts the mounting seat 2 to be level through the linear drive on the opposite side until the sensing mechanism cannot monitor the liquid sensing medium.

[0063] II. When used outdoors in winter, first start the heating assembly 241 to raise the overall temperature of the base 24, and heat and warm the liquid sensing medium.

[0064] III. Drive the movable plate 22 to move downward through the rotary drive assembly, so that the output end of the scraping assembly 222 tightly adheres to the surface of the stand column 23 and slides downward to scrape the outer surface of the stand column 23.

[0065] IV. When the liquid sensing medium in the mounting seat 2 decreases, directly supplement the liquid sensing medium into the mounting seat 2 through the pump box 226 and the compensation box 227; inflate the elastic membrane 242 through one group of air pump assemblies 243 to make the elastic membrane 242 swell and thereby raise the liquid level of the liquid sensing medium; and drive the transverse sensing assembly 232 to move downward through the linear drive assembly 236 to lower the monitoring position.

[0066] V. When the movable plate 22 moves upward, the bottom end of the top shaft 25 bends the elastic sheet 225, so that the elastic sheet 225 bends downward, and the arc-shaped elastic sheet 225 facilitates the liquid sensing medium adhered to the bottom of the movable plate 22 to drop quickly; when the movable plate 22 moves downward, the elastic sheet 225 restores to the original state and remains horizontal.

[0067] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A measuring device for engineering survey, comprising a fixed base (1), a support leg (11) rotatably mounted on the bottom of the fixed base (1), a mounting base (2) mounted on the fixed base (1), an adjustment mechanism (4) provided between the fixed base (1) and the mounting base (2), a measuring instrument body (12) mounted on the mounting base (2), the interior of the mounting base (2) being hollow, a sensing mechanism installed inside the mounting base (2), and the interior of the mounting base (2) being filled with a liquid sensing medium, the sensing mechanism being used to monitor the liquid level of the liquid sensing medium and control the adjustment mechanism (4) to adjust the inclination of the mounting base (2), characterized in that: The mounting base (2) has an adjustment groove (21) on its top. A rotary drive assembly is installed inside the adjustment groove (21). A movable plate (22) is movably installed inside the mounting base (2). The rotary drive assembly is used to drive the movable plate (22) to move vertically along the surface of the column (23). The edge of the movable plate (22) is provided with an alignment groove (223), and the inside of the mounting base (2) is fixedly provided with a column (23). The column (23) and the alignment groove (223) are in concave-convex fit and are provided with several sets. The sensing mechanism is installed inside the column (23). The inside of the alignment groove (223) is provided with a scraping component (222), and the output end of the scraping component (222) slides close to the surface of the column (23). The mounting base (2) has a base (24) installed at its bottom, and a heating component (241) is installed inside the base (24). The scraping assembly (222) includes a movable block (2221), a through plate (2223) is fixedly provided on one side of the movable block (2221), and a scraping blade (2224) is fixedly provided at one end of the through plate (2223), and the scraping blade (2224) slides in contact with the outer surface of the column (23); The rotary drive assembly includes an outer sleeve (26), which is rotatably mounted inside the adjustment groove (21). The inner thread of the outer sleeve (26) is connected to a threaded post (261), which is fixedly connected to the movable plate (22). A limiting plate (211) is installed inside the adjustment groove (21). An adjustment handle (262) and a limiting protrusion (263) are fixedly provided on the outer side of the outer sleeve (26). The adjustment handle (262) extends out of the adjustment groove (21), and the limiting protrusion (263) is slidably disposed inside the groove of the limiting plate (211).

2. The measuring device for engineering surveying according to claim 1, characterized in that: The mounting base (2) is fixedly mounted with a mounting platform (3), and the measuring instrument body (12) is detachably mounted on the mounting platform (3). The bottom of the mounting platform (3) is provided with a guide groove (31), and the top of the threaded column (261) is slidably disposed inside the guide groove (31).

3. The measuring device for engineering surveying according to claim 2, characterized in that: A compensation component is installed on the movable plate (22), which is used to compensate the liquid sensing medium inside the mounting base (2).

4. A measuring device for engineering surveying according to claim 3, characterized in that: The compensation component includes a pump box (226), which is located in the middle of the movable plate (22). A compensation box (227) is installed on the movable plate (22), and the compensation box (227) is located at the top edge of the movable plate (22). The pump box (226) and the compensation box (227) are connected by a connecting pipe (228). A compensation hole (2271) is provided at the bottom of the movable plate (22), and several sets of compensation holes (2271) and compensation boxes (227) are provided in correspondence.

5. A measuring device for engineering surveying according to claim 4, characterized in that: An elastic membrane (242) is laid on the base (24), and an air pump assembly (243) is installed inside the column (23). The air pump assembly (243) and the elastic membrane (242) are connected.

6. A measuring device for engineering surveying according to claim 5, characterized in that: A vertical sensing component (224) is installed at the bottom of the movable plate (22), and the detection end of the vertical sensing component (224) is set downward. A detection hole (2241) is opened at the bottom of the movable plate (22) corresponding to the position of the vertical sensing component (224), and the detection end of the vertical sensing component (224) corresponds to the detection hole (2241).

7. A measuring device for engineering surveying according to claim 6, characterized in that: The sensing mechanism includes a lateral sensing component (232), a detection window (231) is provided on the surface of the column (23), an air port (233) is provided on one side of the column (23), a guide ring (234) is fixedly provided on the outside of the lateral sensing component (232), a guide column (235) passes through the inside of the guide ring (234), a linear drive component (236) is installed inside the column (23), and the output end of the linear drive component (236) is fixedly connected to the lateral sensing component (232).

8. A measuring device for engineering surveying according to claim 7, characterized in that: The bottom of the movable plate (22) is provided with a telescopic groove (221), and the inside of the telescopic groove (221) is provided with an elastic sheet (225). The top of the mounting base (2) is fixedly provided with a top shaft (25). The inside of the movable plate (22) and the pump box (226) are both provided with a top shaft hole (229). The top shaft (25) passes through the inside of the top shaft hole (229). A pull block (2222) is fixed between the movable block (2221) and the elastic sheet (225). A guide plate (2225) passes through the inside of the movable block (2221).

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