CN109458998B

CN109458998B - A civil engineering measuring device

Info

Publication number: CN109458998B
Application number: CN201811548023.0A
Authority: CN
Inventors: 王大国
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2021-07-27
Anticipated expiration: 2038-12-18
Also published as: CN109458998A

Abstract

The invention discloses a civil engineering measuring device, comprising a base and a receiving groove arranged on the upper surface of the base, wherein a combined measuring frame is arranged in the receiving groove, and two ends of the combined measuring frame are provided with a main telescopic device through a single adjustment device , the other ends of the two main telescopic devices are hinged at the corners of the adjacent two sides of the storage slot, the inner measurement of the main telescopic device is provided with a secondary telescopic device, and one end of the two auxiliary telescopic devices is connected to the combined measurement The other end of the two auxiliary telescopic devices is connected to the middle of the side wall of the storage tank, and one of the main telescopic devices is provided with a pendulum measurement device, which provides a wealth of measurement devices and avoids the need for civil engineering measurement. The calibration is repeated, and the horizontal calibration of the automatic measurement base point is realized, the error in the measurement process is reduced, the accuracy of the measurement data is improved, and the structure is simple and portable.

Description

Civil engineering measuring device

Technical Field

The invention relates to the field of civil engineering, in particular to a civil engineering measuring device.

Background

Civil engineering refers to the general term of science and technology for building various land engineering facilities, and refers to both the applied materials and equipment and the technical activities of surveying, designing, constructing, maintaining, repairing, etc. and the objects of engineering construction, i.e. the various engineering facilities which are built on the ground or underground or on land and directly or indirectly serve human life, production, military and scientific research, such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, harbors, power stations, airports, ocean platforms, water supply and drainage, protection engineering, etc. The civil engineering is an engineering entity which is used for surveying, planning, designing, constructing, installing, maintaining and other technical works of newly-built, reconstructed or expanded buildings, structures, related supporting facilities and the like of various projects and completed by the technical works, wherein the civil engineering measurement mainly comprises leveling, angle measurement, distance measurement and linear orientation, a measuring instrument used in the field measurement process needs to be frequently moved, disassembled and assembled, and the leveling instrument is used for measuring the height difference between construction ground points and is an essential link, and the leveling instrument is usually installed on a tripod to complete the measurement work.

In the prior art, civil engineering measurement has the following problems:

(1) when surveying staff adopts the measuring device who installs the spirit level to measure the difference in height between the construction ground point, generally need handheld record this record measuring numerical value, so that calculate the difference in height between the construction ground point, therefore, in the measurement process, need a hand-held notebook, constructor's both hands can't obtain the liberation, it is inconvenient to record measured data, make the measurement process loaded down with trivial details, civil engineering survey is generally supported with the measuring apparatu adoption A-frame, it is bulky, it is inconvenient to carry, and installation and dismantlement speed are slow, influence measured data's the degree of accuracy and measurement of efficiency.

(2) Only one measuring tool of a level, a theodolite or a level can be used for mounting, observing and measuring a tripod on a triangular angle, while in the measurement of civil engineering, three or more measuring tools may need to be concentrated at the same time, and the measurement on the same datum point needs to be carried out by re-leveling and positioning of the datum point every time one measuring tool is replaced, thereby greatly influencing the measuring efficiency in the civil engineering;

(3) the bottom of current spirit level and theodolite all is provided with the foot spiral, because the foot spiral can only carry out short distance fine setting, restrict its control range, thereby the roughness to ground has certain requirement, and when the installation tripod, need the manual work to carry out the level of tripod and range estimation adjustment, at last carry out the fine setting of foot spiral, need two steps's regulation step, when the foot spiral adjustment overrange, how need readjustment the strong point height of tripod, the preparation time of the level measurement environment when further increase is measured.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a civil engineering measuring device which can effectively solve the problems in the background art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a civil engineering measuring device comprises a base and a containing groove arranged on the upper surface of the base, wherein a combined measuring frame is arranged in the containing groove, main telescopic devices are arranged at two ends of the combined measuring frame through single adjusting devices, the other ends of the two main telescopic devices are hinged at corners of two adjacent sides of the containing groove, auxiliary telescopic devices are arranged on the inner sides of the main telescopic devices, one ends of the two auxiliary telescopic devices are connected to the combined measuring frame, the other ends of the two auxiliary telescopic devices are connected to the middle of the side wall of the containing groove, and a hammer pendulum measuring device is arranged on one main telescopic device;

the combined measuring frame is provided with a measuring device, the measuring device comprises a ring frame, the top of the ring frame is provided with a theodolite, the bottom of the ring frame is provided with a level, and the inside of the ring frame is provided with a coordinatograph.

Further, the coordinatograph is including setting up at the inside fan-shaped sealed casing of ring frame, the part that fan-shaped sealed casing is located the lateral wall of ring frame is provided with scale arc lens, the end-to-end connection of fan-shaped sealed casing has the lens cone that is "Z" shape, just lens cone and fan-shaped sealed casing junction are provided with wide angle lens, be provided with the spirit level in the fan-shaped sealed casing diapire between wide angle lens and the scale arc lens, the interior top and the bottom of lens cone all are provided with the prism, and are located being provided with the adjusting knob of the prism of the bottom in the lens cone, the lens cone is connected on the eyepiece of spirit level.

Further, the combination measuring rack includes that the annular is adjusted the seat, seat internally mounted is adjusted to the annular has the transposition accent wheel, just the ring frame is through spiral interlock transposition accent wheel, the equidistant meshing of the outer lane of transposition accent wheel has a plurality of star to transfer the wheel, just the star transfers the wheel to pass through the vertical installation in the inner wall that the annular was adjusted to the annular of damping bearing, the leading flank that the seat was adjusted to the annular radially is provided with the lock position knob, is provided with the fine setting button for on the surface tangent line position of the annular of the lock position knob adjusts the seat.

Further, two single adjusting device installs in the annular adjusting seat bottom of lock position knob both sides, just single adjusting device includes interior nested pipe, the spiral mounting has decides the screw rod in the interior nested pipe, decide the pole body of screw rod and annular adjusting seat junction and overlap and be equipped with the dish cover pad, two the level is provided with horizontal swivel nut between the interior nested pipe, horizontal inside axial movable mounting of swivel nut has two-way screw rod, just two-way screw rod spiral interlock respectively is on deciding the screw rod, the one end that two-way screw rod extends horizontal swivel nut is provided with the regulation ratchet.

Further, four edges of the bottom of base are provided with the universal wheel, the inboard base of universal wheel is installed through the spiral shell and is decided the heel brace, the top of deciding the heel brace is connected with the reduction gear, the input shaft of reduction gear is connected with driving motor, the inside automatic leveling device that is provided with of base, the automatic leveling device is including holding the flat seat, hold flat seat surface bowl groove, bowl inslot portion is provided with the ball panel, be provided with the correction tube hole that runs through holding the flat seat in the middle of the bowl groove bottom, be provided with the cycloid in the middle of the bottom of ball panel, the one end of cycloid is passed the correction tube hole and is connected with the pendulum ball, be provided with annular pressure-sensitive sensor on the bottom inner wall of correction tube hole, be provided with the response magnetosphere for on the base of the pendulum ball dead bottom.

Further, equidistant annular is provided with the contact polar circle of a certain amount in the middle of the surface of ball panel, the contact polar circle is "Contraband" shape, is provided with the electrode circle on the bowl inslot wall for the contact polar circle, the inside integrated circuit mainboard that is used for controlling the electrode circle that is provided with of base, driving motor electric connection is on the integrated circuit mainboard.

Further, the main telescoping device that is located the outside includes that the transversal support loop bar that personally submits the crescent and the transversal circular shape of personally submitting inlays the pole in, pendulum measuring device installs on inlaying the pole including, pendulum measuring device includes through the actinobacillus wheel of the installation of three-dimensional free arm on inlaying the pole, just three-dimensional free arm installs on inlaying the pole including through rotating the cover, fixed mounting has the sight glass on the support loop bar of actinobacillus wheel bottom side.

Further, the one end of base is articulated to have the arc shroud through the articulated shaft, just the both ends of articulated shaft all are provided with the spring catch, and the inside of arc shroud is provided with the cavernosum, a side of arc shroud is provided with the U-shaped limit, the inside both ends in U-shaped limit are provided with pulls the knot, just pull the knot and connect on the spring catch through rigid line, rigid line passes the contact surface of cavernosum and arc shroud.

Furthermore, two lock holes with an included angle of 60 degrees are arranged on the inner wall of the joint of the arc cover cap and the hinge shaft, and the lock holes are matched with the spring pins.

Furthermore, the middle of a certain section of the support sleeve rod is connected with an auxiliary telescopic device through a seat cushion clamp.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention realizes the combination of a plurality of measuring devices, meets the requirement of simultaneously measuring various data in civil engineering, is convenient to carry and occupies small space;

(2) according to the invention, four single adjusting devices are used as adjusting horizontal adjusting nodes of the combined measuring frame, two single adjusting devices are simultaneously controlled through the bidirectional screw, and the two single adjusting devices connected to the auxiliary telescopic device are manually adjusted relative to an observation position, so that four-point stabilization of three-point adjustment and control is realized, and the adjusting and calibrating efficiency is rapidly improved.

(3) According to the invention, the ground horizontal calibration and the calibration and measurement of the measuring device which originally belongs to the tripod are separated, so that errors generated by environmental factors of the ground horizontal calibration and the measuring device are not overlapped, and meanwhile, the automatic calibration of the base is realized, so that the accuracy of measured data is improved, and the automatic horizontal calibration of the base also avoids multiple horizontal calibrations during position transfer.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the automatic leveling device according to the present invention;

FIG. 3 is a schematic view of the construction of the coordinate apparatus of the present invention;

FIG. 4 is a schematic view of the annular adjustment base of the present invention;

FIG. 5 is a schematic view of the structure of the bi-directional screw of the present invention;

FIG. 6 is a schematic structural view of the main retractor of the present invention;

FIG. 7 is a schematic view of the main retractor of the present invention;

fig. 8 is a schematic view of the structure of the curved lens surface coordinate line of the present invention.

Reference numbers in the figures:

1-a base; 2-a storage groove; 3-combining the measuring frame; 4-a single regulating device; 5-a main telescopic device; 6-auxiliary telescoping devices; 7-a pendulum measurement device; 8-a measuring device; 9-a coordinator; 10-universal wheels; 11-fixing the foot support; 12-a reducer; 13-a drive motor; 14-self-leveling device; 15-a hinged axis; 16-arc cover cap; 17-U-shaped edge; 18-a sponge; 19-buckling the plate; 20-steel wire;

301-annular adjustment seat; 302-indexing adjustment wheel; 303-star wheel adjustment; 304-a damping bearing; 305-capture knob; 306-fine tuning button;

401-inner nested tubes; 402-a fixed screw rod; 403-disc sleeve pad; 404-horizontal thread insert; 405-a two-way screw; 406-adjusting the ratchet;

501-supporting a loop bar; 502-embedded rod;

701-three-way free arm; 702-a payout roller; 703-a sight glass;

801-ring frame; 802-theodolite; 803-level gauge;

901-sector sealing shell; 902-graduated arc lens; 903-a submarine lens barrel; 904-wide angle lens; 905-a level;

1401-a flat-carrying seat; 1402-bowl groove; 1403-ball panel; 1404-cycloid; 1405-correction tube holes; 1406-a pendulum ball; 1407-annular pressure sensor; 1408-induction coil; 1409-contact pole ring; 1410-electrode ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 8, the invention provides a civil engineering measuring device, which comprises a base 1 and an accommodating groove 2 arranged on the upper surface of the base 1, wherein a combined measuring frame 3 is arranged in the accommodating groove 2, two ends of the combined measuring frame 3 are provided with main telescopic devices 5 through a single adjusting device 4, the other ends of the two main telescopic devices 5 are hinged at corners of two adjacent sides of the accommodating groove 2, the inner side of the main telescopic device 5 is provided with an auxiliary telescopic device 6, one end of each of the two auxiliary telescopic devices 6 is connected on the combined measuring frame 3, the other end of each of the two auxiliary telescopic devices 6 is connected in the middle of the side wall of the accommodating groove 2, and one main telescopic device 5 is provided with a hammer pendulum measuring device 7;

the combined measuring frame 3 is provided with a measuring device 8, the measuring device 8 comprises a ring frame 801, the top of the ring frame 801 is provided with a theodolite 802, the bottom of the ring frame 801 is provided with a level 803, and the inside of the ring frame is provided with a coordinatograph 9.

According to the invention, the combined measuring frame 3 is installed through the main telescopic device 5 and the auxiliary telescopic device 6, the base 1 is used as an installation structure of the combined measuring frame 3, and the base 1 is used for accommodating and rapidly installing the measuring device 8, so that the multiple measuring tools are portable and rapidly installed;

the combined telescopic structure of the main telescopic device 5 and the auxiliary telescopic device 6 enables the combined measuring frame 3 to keep moving in the vertical direction, position change and adjustment of the combined measuring frame 3 are carried out, the middle of a certain section of the supporting sleeve rod 501 is connected with the auxiliary telescopic device 6 through a seat cushion clamp, the seat cushion clamp is a seat cushion clamp structure at the bottom of the existing bicycle seat cushion, and the position fixation of the main telescopic device 5 and the auxiliary telescopic device 6 after the telescopic operation is convenient;

and because the auxiliary telescoping device 6 can be an umbrella handle telescoping structure similar to an umbrella, the auxiliary telescoping device 6 and the main telescoping device 5 are crossed and are used as supporting points at the joint of the seat cushion clamps, the combined measuring frame 3 is placed in a horizontal state.

The measuring device 8 in the invention comprises a theodolite 802, a level 803 and a coordinatograph 9, wherein the level 803 is arranged at the bottom of the theodolite 802, the coordinatograph 9 is arranged between the theodolite 802 and the level 803, the combination of three measuring instruments and the acquisition of various measuring data in civil engineering measurement are realized, and the level 803 is arranged at the bottom of the theodolite 802, and the measurement of the level 803 is not influenced.

The coordinatograph 9 comprises a fan-shaped sealing shell 901 arranged inside a ring frame 801, a graduated arc lens 902 is arranged on the part, located on the side wall of the ring frame 801, of the fan-shaped sealing shell 901, a Z-shaped hidden lens barrel 903 is connected to the tail end of the fan-shaped sealing shell 901, a wide-angle lens 904 is arranged at the joint of the hidden lens barrel 903 and the fan-shaped sealing shell 901, a horizontal device 905 is arranged in the bottom wall of the fan-shaped sealing shell 901 between the wide-angle lens 904 and the graduated arc lens 902, triangular prisms are arranged on the top and the bottom of the hidden lens barrel 903, an adjusting button is arranged at one end of each triangular prism located on the bottom inside the hidden lens barrel 903, and the hidden lens barrel 903 is connected to an eyepiece of the level 803.

In the measurement process of the level 803, it is necessary to observe the object to be measured in the eyepiece of the level 803 while observing the levelness of the level through the observation window of the level 803 to ensure the accuracy of the measurement data, and in the present invention, the submarine tube 903 of the coordinatograph 9 and the eyepiece of the level 803 are connected together, and only the data having the measurement error is obtained because the observation error of the left and right eyes cannot be compensated during the measurement process. The light transmission of the submarine lens barrel 903 utilizes the working principle of a periscope, when the leveling instrument 803 is used for observation and measurement, horizontal display of the leveling instrument 905 and imaging in an objective lens of the leveling instrument 803 can simultaneously appear in an eyepiece of the leveling instrument 803, and the horizontal display and the imaging in the objective lens of the leveling instrument 803 are combined on one mirror surface, so that single-eye observation and measurement are realized, and imaging errors caused by double-eye measurement are avoided;

meanwhile, an observation object is imaged through the graduated arc lens 902, the scale on the graduated arc lens 902 is used for carrying out proportional marking on the imaging of the object, a longitudinal marked line and a horizontal marked line are arranged on the graduated arc lens 902, so that an observation coordinate scale is formed, a worker can visually judge the distance between the observation object and a reference object through the imaging in an eyepiece, the imaging of the object through the graduated arc lens 902 enters the wide-angle lens 904 and is further refracted through a triangular prism in the submarine tube 903, so that the imaging is carried out in the eyepiece of the level, the graduated arc lens 902 is integrally in a slope shape, and the surface radian of the graduated arc lens 902 is the same as that of the ring frame 801;

the level 905 of the present invention is a level bubble, and the surface of the level bubble opposite to the surface of the graduated arc lens 902 is a frosted surface.

The combined measuring stand 3 comprises an annular adjusting seat 301, a transposition adjusting wheel 302 is installed inside the annular adjusting seat 301, a ring frame 801 is meshed with the transposition adjusting wheel 302 through a spiral, a plurality of star adjusting wheels 303 are meshed with the outer ring of the transposition adjusting wheel 302 at equal intervals, the star adjusting wheels 303 are vertically installed in the inner wall of the annular adjusting seat 301 through damping bearings 304, a locking screw button 305 is radially arranged on the front side surface of the annular adjusting seat 301, and a fine adjusting button 306 is arranged on the surface tangent position of the annular adjusting seat 301 corresponding to the locking screw button 305.

When the measuring device 8 is installed, the ring frame 801 and the transposition adjusting wheel 302 of the measuring device 8 are spirally meshed, the internal thread of the transposition adjusting wheel 302 limits the number of rotation turns of the ring frame 801 and the final rotating substance, after the ring frame 801 is installed and the horizontal adjustment of the base 1 is completed, the single adjusting device 4 is used for horizontal coarse adjustment of the measuring device 8, the fine adjusting button 306 is rotated to perform fine circular motion of the fine adjusting button 306, and the final position adjustment is obtained through eyepiece observation and adjustment in the leveling instrument 803, wherein the surface of the transposition adjusting wheel 302 is provided with a large tooth pitch and a micrometer tooth pitch, the star adjusting wheel 303 is meshed with the large tooth pitch, and the fine adjusting button 306 is meshed with the micrometer tooth pitch, so that the fine-adjusted position adjustment is realized, and the optimal observation position is convenient to find;

after the optimal position of the position-adjusting wheel 302 is found, the position-locking screw 305 is rotated, the position-adjusting wheel 302 is further fixed through the meshing of the surface of the position-locking screw 305 and the surface of the position-adjusting wheel 302, and the position-locking screw 305 is meshed on a micrometer pitch, so that the change of tooth gaps in the meshing process is reduced, and the change of the determined adjusting position is avoided.

Two single adjusting devices 4 are arranged at the bottom of a combined measuring frame 3 on two sides of a locking screw button 305, each single adjusting device 4 comprises an inner nested tube 401, a fixed screw 402 is spirally arranged in each inner nested tube 401, a disc sleeve pad 403 is sleeved on a rod body at the joint of the fixed screw 402 and an annular adjusting seat 1, a transverse screw sleeve 404 is horizontally arranged between the two inner nested tubes 401, a bidirectional screw 405 is axially and movably arranged in the transverse screw sleeve 404, the bidirectional screw 405 is respectively and spirally engaged with the fixed screw 402, and an adjusting ratchet 406 is arranged at one end, extending out of the transverse screw sleeve 404, of the bidirectional screw 405.

When the single adjusting device 4 is used for calibrating the position of the combined measuring frame 3, the ratchet wheel 406 is rotated to drive the bidirectional screw rod 405, and the bidirectional screw rod 405 rotates in a single direction, so that the fixed screw rods 402 in the two single adjusting devices 4 respectively rotate upwards and spirally up and down, and then the synchronous adjustment of the two sides of the joint of the main telescopic device 5 and the combined measuring frame 3 realizes double adjustment of the single rods.

It is further noted that the auxiliary expansion device 6 of the present invention is also connected to the combined measuring rack 3 through the single adjusting device 4, and the difference is that the single adjusting device 4 does not have the transverse screw sleeve 404 and the bidirectional screw 405, but separately adjusts the position through the nut pair sleeved on the fixed screw 402.

In the invention, four single adjusting devices 4 are used as adjusting horizontal adjusting points of the combined measuring frame 3, two single adjusting devices 4 are simultaneously controlled through the two-way screw 405, and the two single adjusting devices 4 connected on the auxiliary telescopic device 6 are manually adjusted relative to an observation position, so that four-point stabilization of three-point adjusting and controlling is realized, and the adjusting and calibrating efficiency is rapidly improved.

The four corners of the bottom of a base 1 are provided with universal wheels 10, the base on the inner side of the universal wheels 10 is provided with a fixed foot support 11 through a spiral sleeve, the top of the fixed foot support 11 is connected with a speed reducer 12, an input shaft of the speed reducer 12 is connected with a driving motor 13, an automatic leveling device 14 is arranged inside the base 1, the automatic leveling device 14 comprises a flat bearing seat 1401, a bowl slot 1402 on the surface of the flat bearing seat 1401 is arranged, a spherical plate 1403 is arranged inside the bowl slot 1402, the middle of the bottom of the bowl slot 1401 is provided with a correction pipe hole 1405 penetrating through the flat bearing seat, the middle of the bottom of the spherical plate 1403 is provided with a cycloid 1404, one end of the cycloid 1404 penetrates through the correction pipe hole 1405 to be connected with a pendulum ball 1406, the inner wall of the bottom of the correction pipe hole 1405 is provided with an annular pressure-sensitive sensor 1407, and the base 1 opposite to the bottom of the pendulum ball 1406 is provided with an induction magnetic ring 1408.

The middle of the surface of spherical plate 1403 is provided with a certain number of contact polar rings 1409 at equal intervals in an annular manner, the contact polar rings 1409 are in the shape of Contraband, an electrode ring 1410 is arranged on the inner wall of bowl slot 1402 corresponding to the contact polar rings 1409, an integrated circuit mainboard for controlling the electrode ring 1410 is arranged inside base 1, and driving motor 13 is electrically connected to the integrated circuit mainboard.

The invention will carry on the automatic level calibration of the base 1 at the beginning of the civil engineering survey, its principle of automatic calibration is:

when the base 1 is in the tilted state, the spherical plate 1403 is always kept in the vertical state due to gravity, so that the contact on the sphere plate 1403 by several turns 1409 and the electrode rim 1410 in the bowl 1402 cannot guarantee a complete contact, at the same time, cycloid 1404 is displaced to one side of calibration tube aperture 1405 by the force of gravity of pendulum ball 1406, causing cycloid 1404 to exert a force on annular pressure sensor 1407, the integrated circuit board receives and monitors the state data in real time, and calculates the contact points of the contact polar rings 1409 and the electrode rings 1410, after each contact polar ring 1409 and the electrode ring 1410 are contacted, a channel signal is generated to be received by a receiving module of the integrated circuit board, and calculates the contact point, determines the deviation of the spherical plate 1403, controls a certain driving motor 13 through an electric signal, through the work of driving motor 13 drive reduction gear 12, reduction gear 12 carries out the level (l) ing of base 1 through deciding heel brace 11 with the moment of torsion transmission to deciding heel brace 11.

The contact surface between the bowl 1402 and the spherical plate 1403 is smooth enough, the length of the cycloid 1404 is 1.5 times of the tube length of the correction tube hole 1405, the diameter of the correction tube hole 1405 is far smaller than the diameter of the pendulum ball 1406, and the weight of the pendulum ball 1406 is slightly smaller than the weight of the spherical plate 1403, so that when the base 1 is slightly inclined, the cycloid pendulum ball can be detected by the annular pressure sensor 1407 on the correction tube hole 1405.

In the invention, the ground horizontal calibration and the measurement of the measuring device which originally belongs to the tripod are separated, so that the errors generated by the environmental factors of the ground horizontal calibration and the measuring device can not be superposed, thereby improving the accuracy of the measured data, and the automatic horizontal calibration of the base 1 also avoids multiple horizontal calibrations during position transfer.

The main telescopic device 5 positioned on the outer side comprises a supporting sleeve rod 501 with a crescent-shaped cross section and an embedded rod 502 with a circular cross section, a pendulum measuring device 7 is arranged on the embedded rod 502, the pendulum measuring device 7 comprises a paying-off wheel 702 arranged on the embedded rod 502 through a three-way free arm 701, the three-way free arm 701 is arranged on the embedded rod 502 through a rotating sleeve, and an observation mirror 703 is fixedly arranged on the supporting sleeve rod 501 at the bottom side of the paying-off wheel 702.

According to the invention, an arc cover 16 is hinged to one end of a base 1 through a hinge shaft 15 to cover a measuring device 8, meanwhile, when the arc cover 16 is opened, the arc cover 16 can be used as a pushing handle to push the base 1 to move, spring pins are arranged at two ends of the hinge shaft 15, a sponge body 18 is arranged inside the arc cover 16, a U-shaped edge 17 is arranged at one side edge of the arc cover 16, wrenches 19 are arranged at two ends inside the U-shaped edge 17, the wrenches 19 are connected to the spring pins through rigid wires 20, and the rigid wires 20 penetrate through contact surfaces of the sponge body 18 and the arc cover 16;

two lock holes with an included angle of 60 degrees are arranged on the inner wall of the joint of the arc cover cap 16 and the hinge shaft 15, and the lock holes are matched with the spring pins.

When the arc cover 16 is opened, the plate buckle 19 is pulled, the rigid wire 20 is pulled by the buckle 19, the spring pin is pulled by the rigid wire 20 to be separated from the lock hole, so that the locking is released, and when the arc cover 16 is completely opened, the buckle 19 is released, so that the spring pin enters a second lock hole.

For further explanation, the three-way free arm in the invention is essentially three sections of connecting rods which are connected or hinged through a spherical hinge; a plumb is wound on the wire-proof wheel.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A civil engineering measuring device, comprising a base (1) and a receiving groove (2) arranged on the upper surface of the base (1), wherein the receiving groove (2) is provided with a combined measuring frame (3) The two ends of the combined measuring rack (3) are provided with a main telescopic device (5) through a single adjustment device (4), and the other ends of the two main telescopic devices (5) are hinged adjacent to the receiving groove (2). At the corners of both sides, the inner side of the main telescopic device (5) is provided with auxiliary telescopic devices (6), one end of the two auxiliary telescopic devices (6) is connected to the combined measuring frame (3), and the two The other end of the auxiliary telescopic device (6) is connected in the middle of the side wall of the storage groove (2), and a pendulum measuring device (7) is provided on one of the main telescopic devices (5);

A measuring device (8) is installed on the combined measuring frame (3), the measuring device (8) comprises a ring frame (801), and a theodolite (802) is arranged on the top of the ring frame (801), and the ring frame (801) is provided with a theodolite (802). The bottom of the frame (801) is provided with a level (803), the inside of the ring frame is provided with a coordinate instrument (9), and the coordinate instrument (9) includes a fan-shaped sealed casing (901) arranged inside the ring frame (801). ), the part of the fan-shaped sealing shell (901) located on the side wall of the ring frame (801) is provided with a graduated arc lens (902), and the end of the fan-shaped sealing shell (901) is connected with a "Z"-shaped A submersible lens barrel (903), and a wide-angle lens (904) is provided at the connection between the submersible lens barrel (903) and the fan-shaped sealed housing (901), and between the wide-angle lens (904) and the graduated arc lens (902) A leveler (905) is provided in the bottom wall of the fan-shaped sealed casing (901), the inner top and the bottom of the submersible lens barrel (903) are all provided with a triangular prism, and the inner bottom of the submerged lens barrel (903) is provided with a triangular prism. One end is provided with an adjustment button, and the submersible lens barrel (903) is connected to the eyepiece of the level (803).

2. A civil engineering measuring device according to claim 1, characterized in that: the combined measuring frame (3) comprises an annular adjusting seat (301), and an indexing adjusting seat (301) is installed inside the annular adjusting seat (301). wheel (302), and the ring frame (801) engages the indexing wheel (302) through a screw, and the outer ring of the indexing wheel (302) is meshed with a number of star-adjusting wheels (303) at equal intervals, and The star adjustment wheel (303) is vertically installed in the inner wall of the annular adjustment seat (301) through a damping bearing (304), and a locking screw (305) is radially arranged on the front side of the annular adjustment seat (301). , a fine adjustment button (306) is arranged on the surface tangent position of the annular adjustment seat (301) of the locking screw button (305).

3. A civil engineering measuring device according to claim 1, characterized in that: the two single adjustment devices (4) are installed at the bottom of the annular adjustment seat (1) on both sides of the locking screw (305), And the single adjustment device (4) includes an inner nested tube (401), a fixed screw (402) is screwed in the inner nested tube (401), and the fixed screw (402) is connected to the annular adjustment seat (1). ) The rod body at the junction is sleeved with a disc sleeve gasket (403), a horizontal screw sleeve (404) is horizontally arranged between the two inner nested tubes (401), and the horizontal screw sleeve (404) is axially movable inside A bidirectional screw (405) is installed, and the bidirectional screw (405) is screwed onto the fixed screw (402) respectively, and an adjusting ratchet (406) is provided at one end of the bidirectional screw (405) extending from the horizontal screw sleeve (404). ).

4. A civil engineering measuring device according to claim 1, characterized in that: universal wheels (10) are provided at the four corners of the bottom of the base (1), and the universal wheels (10) A fixed foot support (11) is installed on the inner base of the fixed foot support (11) through a screw sleeve, a reducer (12) is connected to the top of the fixed foot support (11), and a drive motor (13) is connected to the input shaft of the reducer (12). ), an automatic leveling device (14) is provided inside the base (1), and the automatic leveling device (14) includes a leveling seat (1401), the surface of the leveling seat (1401) is a bowl groove (1402), the bowl A ball plate (1403) is arranged inside the groove (1402), a calibration pipe hole (1405) is arranged in the middle of the bottom of the bowl groove (1402) and penetrates the flat seat (1401), and a bottom of the ball plate (1403) is arranged in the middle. A cycloid (1404), one end of the cycloid (1404) is connected to a pendulum ball (1406) through the calibration tube hole (1405), and an annular pressure-sensitive sensor ( 1407), and an induction coil (1408) is arranged on the base (1) at the bottom of the pendulum ball (1406).

5. A civil engineering measurement device according to claim 4, characterized in that: a certain number of contact pole rings (1409) are arranged in the middle of the surface of the spherical plate (1403) at equal intervals, and the contact pole rings (1409) (1409) is in the shape of a "crawl", and an electrode ring (1410) is arranged on the inner wall of the bowl groove (1402) opposite to the contact electrode ring (1409), and the base (1) is provided with a control electrode ring (1410) inside. An integrated circuit mainboard, wherein the driving motor (13) is electrically connected to the integrated circuit mainboard.

6. A civil engineering measuring device according to claim 1, characterized in that: the main telescopic device (5) located on the outer side comprises a crescent-shaped support sleeve rod (501) in cross-section and a circular inner cross-section. An embedded rod (502), the pendulum measurement device (7) is installed on the embedded rod (502), and the hammer pendulum measurement device (7) includes a three-way free arm (701) installed on the embedded rod (502) ) on the pay-off wheel (702), and the three-way free arm (701) is installed on the embedded rod (502) through a rotating sleeve, and the support sleeve rod (501) on the bottom side of the pay-off wheel (702) An observation mirror (703) is fixedly installed on the top.

7. A civil engineering measuring device according to claim 1, characterized in that: one end of the base (1) is hinged with an arc cover (16) through a hinge shaft (15), and the hinge shaft (15) is hinged with an arc cover (16). ) are provided with spring pins at both ends, the inside of the arc cover (16) is provided with a sponge (18), one side of the arc cover (16) is provided with a U-shaped edge (17), the U The inner two ends of the edge (17) are provided with a toggle (19), and the toggle (19) is connected to the spring pin by a rigid wire (20), and the rigid wire (20) passes through the sponge body (18) The contact surface with the arc cover (16).

8 . A civil engineering measuring device according to claim 7 , wherein two locks with an included angle of 60° are provided on the inner wall of the connection between the arc cover ( 16 ) and the hinge shaft ( 15 ). 9 . hole, and the lock hole is matched with the spring pin.

9 . The measuring device for civil engineering according to claim 6 , characterized in that: the middle of a certain section of the support sleeve rod ( 501 ) is connected to the auxiliary telescopic device ( 6 ) through a seat cushion clip. 10 .