CN113624203B - Level gauge for engineering survey - Google Patents
Level gauge for engineering survey Download PDFInfo
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- CN113624203B CN113624203B CN202111183347.0A CN202111183347A CN113624203B CN 113624203 B CN113624203 B CN 113624203B CN 202111183347 A CN202111183347 A CN 202111183347A CN 113624203 B CN113624203 B CN 113624203B
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- plate
- fixedly connected
- level
- sliding
- box body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Abstract
The invention discloses a level for engineering measurement, which comprises an instrument seat, wherein the upper surface of the instrument seat is connected with a plate II in a sliding manner, the upper surface of the plate II is fixedly connected with a box body, the inner side wall of the box body is sleeved with a plate III in a sealing and sliding manner, buoyancy liquid is filled above the plate III, the top wall of the box body is connected with four third rods in a penetrating and sliding manner, one ends of the third rods, which are positioned inside the box body, are rotatably connected with mounting seats through pin shafts, the lower surfaces of the mounting seats are fixedly connected with buoyancy blocks, and one ends of the third rods, which are positioned outside the box body, are hinged with second sliding blocks through balls. Has the advantages that: compared with the prior art, the leveling instrument can automatically adjust the level without observing a reference object and adjusting, so that the measuring efficiency is higher, the height and the measuring angle can be freely adjusted, the fixing effect is better, the measurement inaccuracy caused by mistaken touch is avoided, and the leveling instrument is also suitable for fixing different scenes.
Description
Technical Field
The invention relates to the technical field of levels, in particular to a level for engineering measurement.
Background
In the engineering, the spirit level is a instrument commonly used, establish horizontal sight through the spirit level, and measure the difference in height on two ground, thereby learn the difference in height of two accurate places, provide necessary data support for follow-up engineering construction, need fix the spirit level at the index point earlier during the use, then adjust the spirit level to the level, just can begin to measure, its altitude mixture control of current spirit level is more loaded down with trivial details, the inconvenient operation, and assurance spirit level that can not be accurate is in the horizontality.
The existing invention patent, such as a chinese patent with application patent number CN201811225085.8, discloses a level for engineering measurement, which mainly comprises a bottom plate, a base plate, side plates, a placing plate, a level body, a rotating groove, a rotating hole, a first lead screw, a sprocket, a chain, etc., and has the advantages of simple structure, convenient use, convenient adjustment of the height of the level body, fixation of the level body after the height adjustment, observation of whether the level body is in a horizontal state, and satisfaction of the use requirements of users.
Among this technical scheme, accomplish the spirit level adjustment back, the registration that need observe the directional scale of sash weight just can know whether the spirit level is horizontal, and if not horizontal still need adjust, greatly reduced measurement of efficiency, and only fix the spirit level through the non slipping spur in this technical scheme, still there is the mistake to touch the spirit level and lead to the condition of position deviation to appear, influence measuring result, and simultaneously, still can't adjust the orientation of spirit level, when needing to measure the target of different angles, need readjust the spirit level, it is inconvenient to use.
Disclosure of Invention
The invention aims to solve the problems of low measuring efficiency, poor fixing effect, inconvenience in adjustment and the like in the prior art, and provides a level for engineering measurement.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an surveyor's level for engineering survey, includes the instrument seat, surface sliding connection has plate II on the instrument seat, fixed surface is connected with the box on plate II, plate III has been cup jointed in the sealed slip of box inside wall, the packing has buoyancy liquid above the plate III, the box roof runs through sliding connection has four third poles, the one end that the third pole is located box inside is connected with the mount pad through the round pin hub rotation, fixed surface is connected with buoyancy piece under the mount pad, the one end ball that the third pole is located the box outside articulates there is the second slider, the common sliding connection of second slider has plate IV, fixed surface is connected with the surveyor's level body on plate IV.
Further, fixed surface is connected with a plurality of first poles on plate II, sliding connection has plate I is run through jointly to first pole, fixed surface is connected with the second pole under plate I, the second pole is ball-hinged with plate IV lower surface, instrument seat lower surface passes through support fixedly connected with servo motor, servo motor's output shaft fixedly connected with threaded rod, the threaded rod with instrument seat, plate II, the bottom wall of the box are run through the bearing and are rotated and be connected, one section that the threaded rod is located the box be provided with the screw thread and with plate III threaded connection, all the other parts are smooth structure.
Further, instrument seat diapire is provided with and is used for the fixed establishment with the instrument, fixed establishment includes a plurality of hollow supporting shoes, supporting shoe and instrument seat lower fixed surface are connected, the supporting seat lateral wall runs through a plurality of second pipe fittings of fixedly connected with, the one end fixedly connected with sucking disc of supporting shoe is kept away from to the second pipe fitting, the box lateral wall runs through a plurality of first pipe fittings of fixedly connected with, first pipe fitting is located the first hose of the outside one end fixedly connected with of box, the one end that the box was kept away from to first hose runs through the correspondence the supporting shoe lateral wall extends to its inside.
Further, the supporting shoe lateral wall runs through fixedly connected with third pipe fitting, be provided with the relief valve in the third pipe fitting, supporting shoe lower surface threaded connection has the locating pin.
Further, be provided with the locking mechanism who is used for instrument position locking in the box, the recess in plate III is seted up including four symmetries to the locking mechanism, plate V has been cup jointed in the sealed slip of recess, four electric putter of plate III lower surface through support fixedly connected with, electric putter's output and the plate V lower surface fixed connection that corresponds, four rectangular hole have been seted up to plate III lateral wall symmetry, rectangular hole and the recess intercommunication that corresponds, the third slider has been cup jointed in the sealed slip of rectangular hole, it has hydraulic oil to fill between plate V and the third slider.
Further, four sliding sleeves of roof fixedly connected with in the box, the sealed slip has cup jointed the fourth slider in the sliding sleeve, the fourth slider is located the outside one end fixedly connected with arc of sliding sleeve, four second hoses of fixedly connected with are run through to plate III roof, the one end that plate III was kept away from to the second hose runs through the correspondence the sliding sleeve diapire and extends to its inside.
Furthermore, the side wall of the arc plate, which is far away from one side of the corresponding fourth sliding block, and the side wall of the third sliding block, which is far away from one side of the corresponding electric push rod, are both provided with rubber pads.
Further, first sliding tray has been seted up to instrument seat upper surface, sliding connection has a plurality of first sliders in the first sliding tray, first slider is common and plate II fixed connection, the cross-section of first sliding tray and first slider is the T font.
Further, four second sliding chutes have been seted up to plate IV lower surface, the second slider through the second sliding chute with plate IV sliding connection, instrument seat upper surface is carved with the scale mark, plate II lateral wall fixedly connected with pointer.
The invention has the following advantages:
1. by the characteristic that the liquid level of the liquid is always kept horizontal, the level gauge is automatically adjusted and kept horizontal after being fixed by the buoyancy of the buoyancy liquid to the buoyancy block, and the level gauge can keep a horizontal state after standing without any observation and adjustment, so that the measurement efficiency is greatly improved;
2. the plate III is driven to ascend and descend by the driving motor, namely the level can be driven to ascend and descend by the buoyancy of the buoyancy liquid, so that the height of the level can be freely adjusted;
3. when the height of the level is adjusted, the plate III can also suck air in the supporting block into the box body, so that the air in the sucking disc is sucked into the supporting block through the second pipe fitting, negative pressure is generated in the sucking disc and is adsorbed on the ground, the level is fixed, and the situation that the position is changed and the measuring result is influenced due to the fact that the level is touched by mistake is effectively avoided;
4. the positioning pin is connected through the screw thread, and can be fixed through the positioning pin if the positioning pin needs to be fixed on soft objects such as soil and the like, and can be detached and fixed through the sucker if the positioning pin is fixed on hard objects such as cement ground and the like, so that the fixing device is suitable for fixing different scenes and has stronger practicability;
5. after the height adjustment is finished, the motor push rod is started, pressure is transmitted through hydraulic oil, the fourth slide block can drive the arc-shaped plate to move, the third rod is pressed and locked, the horizontal state of the third rod is kept, and the measurement precision is improved;
6. after starting electric putter with surveyor's level horizontal position locking, can make third slider and box lateral wall only offset simultaneously, start driving motor this moment, frictional force between third slider and the box inside wall makes plate III unable rising decline under the rotation of threaded rod, but the threaded rod drives plate III and rotates together to make the box rotate, can adjust the orientation of surveyor's level, according to the orientation that pointer and scale mark can the accurate orientation of adjusting the surveyor's level.
Drawings
Fig. 1 is a schematic structural diagram of a level for engineering surveying according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is an enlarged view at C of FIG. 1;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 1;
FIG. 6 is a cross-sectional view taken along line E-E of FIG. 1;
fig. 7 is a top view of a leveling instrument for engineering surveying according to the present invention.
Detailed Description
Referring to fig. 1-7, a level for engineering survey, including an instrument stand 1, the upper surface of the instrument stand 1 is connected with a plate II105 in a sliding manner, the upper surface of the plate II105 is fixedly connected with a box body 2, the inner side wall of the box body 2 is sleeved with a plate III201 in a sealing and sliding manner, the upper part of the plate III201 is filled with a buoyancy liquid 208, the buoyancy liquid 208 can use water, or can use brine or other liquid with large density and good fluidity, so that the buoyancy block 202 is subjected to larger buoyancy, the top wall of the box body 2 is connected with four third rods 204 in a penetrating and sliding manner, one end of the third rod 204 located inside the box body 2 is connected with a mounting seat 203 in a rotating manner through a pin shaft, the lower surface of the mounting seat 203 is fixedly connected with a buoyancy block 202, the buoyancy block 202 floats on the liquid level of the buoyancy liquid 208, the buoyancy block 202 is made of plastic material and is hollow, so that the buoyancy thereof on the buoyancy liquid 208 is further increased, so that the buoyancy can support the gravity of some upper parts, meanwhile, the level and the height of the level body 103 can be adjusted through buoyancy, one end of the third rod 204, which is positioned outside the box body 2, is spherically hinged with a second sliding block 205, the spherical hinge only limits three degrees of freedom in position and does not limit three degrees of freedom in angle, so that the second sliding block 205 can rotate at any angle relative to the third rod 204, which is the prior art and is not described herein any more, the second sliding block 205 is jointly and slidably connected with a plate IV206, the upper surface of the plate IV206 is fixedly connected with the level body 103, because the liquid level of the liquid is always kept horizontal, namely no matter how the instrument seat 1 drives the box body 2 to incline, the liquid level of the buoyancy liquid 208 on the plate III201 is always in a horizontal state, so that the four buoyancy blocks 202 always keep the same height, so that the four buoyancy blocks 202 adjust the position of the plate IV206 through the four third rods 204 after the instrument is placed, thereby keeping the horizontal state, therefore, the level of the level body 103 is kept, any contrast object does not need to be observed, any adjustment is not needed, the level can be adjusted to be in a horizontal state after the level is placed statically after the position of the level is determined, and the measuring efficiency is greatly improved.
The upper surface of the plate II105 is fixedly connected with a plurality of first rods 101, the number of the first rods 101 is four, so that the lifting stability of the plate I102 is ensured, the first rods 101 jointly penetrate through the plate I102 in a sliding connection mode, the lower surface of the plate I102 is fixedly connected with a second rod 104, as shown in FIG. 6, the second rod 104 is in an X shape, the central position of the second rod is in a cylindrical shape, the second rod 104 is in a ball hinge joint with the lower surface of the plate IV206, the central position of the second rod 104 is in a ball hinge joint with the central position of the lower surface of the plate IV206, the lower surface of the instrument stand 1 is fixedly connected with a servo motor 3 through a bracket, the servo motor 3 can accurately control the number and the direction of rotation turns, so that the height and the angle of the level can be more accurately adjusted, a threaded rod 301 is fixedly connected with an output shaft of the servo motor 3, the threaded rod 301 is in a penetrating through rotation connection with the instrument stand 1, the plate II105 and the bottom wall of the box body 2 through a bearing, one section of the threaded rod 301 in the box body 2 is provided with threads and is in a threaded connection with the plate III, threaded connection department of threaded rod 301 and plate III201 is provided with sealed the pad, avoid liquid to leak from threaded connection department, the rest is smooth structure, it rotates to drive threaded rod 301 through servo motor 3, can adjust the upper and lower position of plate III201, thereby make buoyancy liquid 208's liquid level rise and descend, buoyancy through buoyancy liquid 208 drives buoyancy piece 202 and rises, during the decline, gravity through each part self, thereby keep buoyancy piece 202 all the time with buoyancy liquid 208 liquid level contact, and then adjust the height of spirit level body 103.
The bottom wall of the instrument holder 1 is provided with a fixing mechanism for fixing the instrument, the fixing mechanism comprises a plurality of hollow supporting blocks 4, four supporting blocks 4 are symmetrically arranged around the center of the circle of the instrument holder 1, the supporting blocks 4 are fixedly connected with the lower surface of the instrument holder 1, the side walls of the supporting blocks 4 are fixedly connected with a plurality of second pipe fittings 403 in a penetrating manner, as shown in fig. 5, the cross section of the box body 2 is square, the four side walls of the box body 2 are all fixedly connected with a first pipe fitting 401 in a penetrating manner, one section of the first pipe fitting 401 extends into the box body 2, so that the descending of the plate III201 is limited to a certain extent, the liquid above the plate III is prevented from flowing into the first pipe fitting 401 after the excessive movement of the plate III, one end, far away from the supporting blocks 4, of the second pipe fittings 403 are fixedly connected with suckers 404, the second pipe fittings 403 are symmetrically arranged and are L-shaped, and the side walls of the box body 2 are fixedly connected with a plurality of first pipe fittings 401 in a penetrating manner, the first hose 402 is fixedly connected to one end, located outside the box body 2, of the first pipe 401, one end, far away from the box body 2, of the first hose 402 penetrates through the side wall of the corresponding supporting block 4 and extends into the first hose 402, when the plate III201 ascends, the buoyancy liquid 208 is lifted, the space between the buoyancy liquid 208 and the bottom wall in the box body 2 is increased, so that the plate III201 simultaneously sucks air in the supporting block 4 into the box body 2 through the first hose 402 and the first pipe 401, so that the second pipe 403 sucks air in the suction cup 404 into the supporting block 4, negative pressure is generated in the suction cup 404, the level is firmly adsorbed on the ground, and therefore the situation that the position of the level is changed due to mistaken touch is avoided, the measurement result is affected, or the positioning needs to be performed again.
The side wall of the supporting block 4 is fixedly connected with a third pipe 406 in a penetrating manner, a pressure relief valve 407 is arranged in the third pipe 406, the pressure relief valve 407 can be automatically opened when the pressure reaches a certain value, for the prior art, details are not described herein, the arrangement of the third pipe 406 and the pressure relief valve 407 enables the plate III201 to continuously pump away the air in the supporting block 4, so that the internal air pressure of the plate III201 is gradually reduced, at this time, the plate III201 increasingly difficultly pumps away the air in the supporting block 4, thereby making the plate III201 difficult to rise, and affecting the normal height adjustment of the level gauge, after the third pipe 406 and the pressure relief valve 407 are arranged, after the suction cup 404 fixes the level gauge, along with the continuous pumping away of the air in the supporting block 4, the pressure of the external atmosphere on the pressure relief valve 407 is continuously higher, until the pressure is increased to a critical value, the pressure relief valve 407 is opened, so that the external air is filled into the supporting block 4, thereby being pumped away by the plate III201, guaranteed that the inside atmospheric pressure of supporting shoe 4 is enough to make sucking disc 404 fixed firm with the spirit level, can not lead to plate III201 to rise the difficulty again, surface threaded connection has locating pin 405 under the supporting shoe 4, through threaded connection locating pin 405, if need fix on soft object such as soil, sucking disc 404 then can't only adsorb, fixed effect is not good, can fix through locating pin 405, and if fix on hard object such as cement ground, locating pin 405 can't insert hard object such as cement storefront in, can't fix, then can pull down locating pin 405 this moment, fix through sucking disc 404, thereby make the spirit level be applicable to the fixed use of different scenes, has stronger practicality, and all have better fixed effect to different scenes.
A locking mechanism for locking the position of an instrument is arranged in the box body 2, the locking mechanism comprises four grooves 501 symmetrically arranged in the plate III201, the four grooves 501 are symmetrically arranged about the center of the plate III201, the plate V502 is hermetically and slidably sleeved in the grooves 501, the lower surface of the plate III201 is fixedly connected with four electric push rods 5 through a support, the output ends of the electric push rods 5 are fixedly connected with the lower surface of the corresponding plate V502, four rectangular holes 503 are symmetrically arranged on the side wall of the plate III201, the rectangular holes 503 are communicated with the corresponding grooves 501, a third sliding block 504 is hermetically and slidably sleeved in the rectangular holes 503, hydraulic oil is filled between the plate V502 and the third sliding block 504, after the height of the level gauge is determined, the electric push rods 5 can be started, so that the plate V502 slides upwards, the hydraulic oil is pressed into the rectangular holes 503, the third sliding block 504 is tightly abutted against the inner side wall of the box body 2, and the plate III201 is locked through the friction force between the plate V502 and the rectangular holes 503, make it unable ascending and decline along with threaded rod 301's rotation, and threaded rod 301 rotates this moment, can not make plate III201 rise decline, then can drive plate III201 and rotate together, again because plate III201 is the square with the cross-section of box 2, plate III201 rotates this moment and can drive box 2 and rotate together to make spirit level body 103 rotate, adjust the spirit level and measure the angle.
Four sliding sleeves 6 are fixedly connected to the inner top wall of the box body 2, the four sliding sleeves 6 are symmetrically arranged relative to the threaded rod 301, a fourth sliding block 601 is hermetically and slidably sleeved in the sliding sleeve 6, one end of the fourth sliding block 601, which is positioned outside the sliding sleeve 6, is fixedly connected with an arc-shaped plate 602, the circle center of the arc-shaped plate 602 faces the corresponding third rod 204, the arc surface of one side, which is far away from the corresponding fourth sliding block 601, of the arc-shaped plate 602 can be completely attached to the third rod 204, the top wall of the plate III201 is fixedly connected with four second hoses 603 in a penetrating manner, one end, which is far away from the plate III201, of the second hose 603 penetrates through the bottom wall of the corresponding sliding sleeve 6 and extends into the interior of the corresponding sliding sleeve, when the plate V502 presses hydraulic oil into the rectangular hole 503, the hydraulic oil can be simultaneously pressed into the sliding sleeve 6 through the second hose 603, so that the arc-shaped plate 602 applies pressure to the third rod 204, thereby locking the position of the third rod 204, and locking the horizontal state of the level at the time, the change of the state is avoided, and the measuring result is prevented from being influenced.
The lateral wall of the arc plate 602, which is far away from the corresponding fourth slider 601 side, and the lateral wall of the third slider 504, which is far away from the corresponding electric push rod 5 side, are both provided with rubber pads, and the rubber pads can further increase the friction force between the arc plate 602 and the third rod 204, and between the third slider 504 and the inner side wall of the box body 2, so that the locking state can be better maintained, and the slipping situation can be avoided.
First sliding tray 106 has been seted up to instrument stand 1 upper surface, sliding connection has a plurality of first sliders 107 in first sliding tray 106, first slider 107 is common and plate II105 fixed connection, the cross-section of first sliding tray 106 and first slider 107 is the T font, the cooperation of the first slider 107 and the first sliding tray 106 of T font avoids the two to break away from, through the setting of annular first sliding tray 106 with first slider 107, and the centre of a circle of first sliding tray 106 is unanimous with the centre of a circle of instrument stand 1 for plate II105 can rotate around the centre of a circle of instrument stand 1.
As shown in fig. 6 and 7, four second sliding grooves 207 have been seted up to plate IV206 lower surface, second slider 205 passes through second sliding groove 207 and plate IV206 sliding connection, four second sliding grooves 207 set up about plate IV206 centre of a circle symmetry, and second sliding groove 207 and second slider 205 are the T font, guarantee the stability of connecting, avoid breaking away from, instrument stand 1 upper surface is carved with the scale mark, plate II105 lateral wall fixedly connected with pointer 7, through pointer 7 and scale mark, the turned angle of regulation spirit level that can be more accurate, thereby improve measurement accuracy greatly.
When the level provided by the invention is used, firstly, the fixed position of the level, namely a calibration point, is determined, the level is fixed at the calibration point, if the calibration point is a soft object such as soil, the level can be directly inserted into the calibration point through the positioning pin 405 to fix the level, and if the calibration point is a hard object such as cement ground, the positioning pin 405 is unscrewed, and then the level is placed at the calibration point.
After the leveling instrument is placed, according to the required height to be measured, the servo motor 3 is started, the servo motor 3 drives the threaded rod 301 to rotate, the plate III201 is connected with the plate III201 through threads, the plate III201 rises, and meanwhile, the space between the plate III201 and the bottom wall in the box body 2 is increased, so that the plate III201 sucks air in the supporting block 4 into the box body 2 through the first pipe 401 and the first hose 402, the air in the sucking disc 404 enters the supporting block 4 through the second pipe 403, negative pressure is generated in the sucking disc 404 and is only adsorbed to the ground, and the position of the leveling instrument is fixed;
the plate III201 rises to drive the liquid level of the buoyancy liquid 208 above the plate III to rise, the buoyancy liquid drives the buoyancy block 202 to rise through buoyancy, so that the buoyancy block 202 drives the plate IV206 to rise through the third rod 204, the position of the level body 103 rises, and the servo motor 3 is turned off after the plate III rises to a required position;
because the liquid level of the liquid is always kept horizontal, namely no matter what kind of inclination the instrument stand 1 drives the box body 2 to be, the liquid level of the buoyancy liquid 208 on the plate III201 is always in a horizontal state, the four buoyancy blocks 202 are always kept at the same height, the four buoyancy blocks 202 adjust the position of the plate IV206 through the four third rods 204 after the instrument is placed, the horizontal state is kept, the level of the level body 103 is kept, any contrast object does not need to be observed, any adjustment does not need to be carried out, and the level can be automatically adjusted to the horizontal state after the level is placed;
after the adjustment is finished and the stand is finished, the electric push rod 5 is started, so that the electric push rod 5 extends out to drive the plate V502 to slide towards the groove 501, thereby pressing part of hydraulic oil into the rectangular hole 503, pressing the other part of hydraulic oil into the sliding sleeve 6 through the second hose 603, pressing the hydraulic oil into the sliding sleeve 6 to enable the fourth slider 601 in the sliding sleeve 6 to slide outwards, thereby enabling the fourth slider 601 to drive the arc-shaped plate 602 to move towards the corresponding third rod 204 until the arc-shaped plate 602 is completely attached to the third rod 204 and generates a certain pressure to the third rod 204, and locking the third rod 204 through the pressure to prevent the slide upwards and downwards to influence the stable state of the level body 103;
the hydraulic oil pressed into the rectangular hole 503 causes the third slider 504 to slide away from the recess 501, so that the third slide 504 is tightly pressed against the inner side wall of the box 2, locking the position of the plate III201, and at this time, if the measuring angle of the level body 103 needs to be adjusted, the servo motor 3 is started again, so that the servo motor 3 drives the threaded rod 301 to rotate, since the friction between the third sliding block 504 and the inner side wall of the box body 2 locks the position of the plate III201, the rotation of the threaded rod 301 cannot move the plate III201 up and down, but drives the plate III201 to rotate together, thereby leading the plate III201 to drive the box body 2 to rotate, the box body 2 to drive the plate II105 to rotate, therefore, the parts above the whole plate II105 rotate along with the plate II, and the measuring angle of the level body 103 is accurately adjusted according to the numerical value of the pointer 7 pointing to the scale mark;
after the measurement is finished, the electric push rod 5 is closed, and the servo motor 3 is driven to rotate, so that the level body 103 can be reset, the suction force of the suction disc 404 to the ground is automatically released during resetting, and the level can be directly taken up.
Claims (8)
1. The utility model provides a surveyor's level for engineering survey, includes instrument seat (1), its characterized in that, instrument seat (1) upper surface sliding connection has plate II (105), fixed surface is connected with box (2) on plate II (105), sealed slip cup joint plate III (201) of box (2) inside wall, the packing of plate III (201) top has buoyancy liquid (208), box (2) roof runs through sliding connection has four third poles (204), the one end that third pole (204) are located box (2) inside is connected with mount pad (203) through the round pin axle rotation, fixed surface is connected with buoyancy piece (202) under mount pad (203), one end ball that third pole (204) are located box (2) outside articulates there is second slider (205), second slider (205) sliding connection has plate IV (206) jointly, the upper surface of the plate IV (206) is fixedly connected with a level body (103); be provided with the locking mechanism who is used for instrument position locking in box (2), locking mechanism includes that four symmetries are seted up recess (501) in plate III (201), recess (501) internal seal slip has cup jointed plate V (502), four electric putter (5) of support fixedly connected with are passed through to plate III (201) lower surface, the output of electric putter (5) and the plate V (502) lower fixed surface that corresponds are connected, four rectangular hole (503) have been seted up to plate III (201) lateral wall symmetry, rectangular hole (503) and recess (501) intercommunication that corresponds, rectangular hole (503) internal seal slip has cup jointed third slider (504), it has hydraulic oil to fill between plate V (502) and third slider (504).
2. The level for engineering measurement as claimed in claim 1, wherein a plurality of first rods (101) are fixedly connected to the upper surface of the plate II (105), the first rods (101) are jointly and slidably connected with a plate I (102) in a penetrating manner, a second rod (104) is fixedly connected to the lower surface of the plate I (102), the second rod (104) is in spherical hinge joint with the lower surface of the plate IV (206), the lower surface of the instrument base (1) is fixedly connected with a servo motor (3) through a bracket, an output shaft of the servo motor (3) is fixedly connected with a threaded rod (301), the threaded rod (301) is rotatably connected with the instrument base (1), the plate II (105) and the bottom wall of the box body (2) in a penetrating manner through a bearing, and a section of the threaded rod (301) located in the box body (2) is provided with threads and is connected with the plate III (201), the rest part is a smooth structure.
3. Level for engineering measurements according to claim 1, characterized in that the bottom wall of the instrument holder (1) is provided with fixing means for fixing the instrument, the fixing mechanism comprises a plurality of hollow supporting blocks (4), the supporting blocks (4) are fixedly connected with the lower surface of the instrument holder (1), the side wall of the supporting block (4) is fixedly connected with a plurality of second pipe fittings (403) in a penetrating way, one end of the second pipe fitting (403) far away from the supporting block (4) is fixedly connected with a sucking disc (404), a plurality of first pipe fittings (401) are fixedly connected with the side wall of the box body (2) in a penetrating way, one end of the first pipe fitting (401) positioned outside the box body (2) is fixedly connected with a first hose (402), one end, far away from the box body (2), of the first hose (402) penetrates through the side wall of the corresponding supporting block (4) and extends into the box body.
4. The level for engineering measurement according to claim 3, wherein a third pipe (406) is fixedly connected to the side wall of the supporting block (4) in a penetrating manner, a pressure relief valve (407) is arranged in the third pipe (406), and a positioning pin (405) is connected to the lower surface of the supporting block (4) in a threaded manner.
5. The level gauge for engineering measurement according to claim 4, wherein four sliding sleeves (6) are fixedly connected to an inner top wall of the box body (2), a fourth sliding block (601) is sleeved in the sliding sleeves (6) in a sealing and sliding manner, an arc-shaped plate (602) is fixedly connected to one end, located outside the sliding sleeves (6), of the fourth sliding block (601), the top wall of the plate III (201) penetrates through four second hoses (603) fixedly connected to the top wall of the plate III, and one end, far away from the plate III (201), of each second hose (603) penetrates through a corresponding bottom wall of the sliding sleeve (6) and extends into the corresponding bottom wall of the sliding sleeve (6).
6. The level for engineering measurement according to claim 5, wherein the side wall of the arc-shaped plate (602) away from the corresponding fourth slider (601) and the side wall of the third slider (504) away from the corresponding electric push rod (5) are provided with rubber pads.
7. The level gauge for engineering measurement according to claim 6, wherein a first sliding groove (106) is formed in the upper surface of the gauge stand (1), a plurality of first sliding blocks (107) are slidably connected in the first sliding groove (106), the first sliding blocks (107) are fixedly connected with the plate II (105) together, and the cross sections of the first sliding groove (106) and the first sliding blocks (107) are T-shaped.
8. The level for engineering measurement as claimed in claim 1, wherein four second sliding grooves (207) are formed in the lower surface of the plate IV (206), the second slider (205) is slidably connected with the plate IV (206) through the second sliding grooves (207), the upper surface of the instrument holder (1) is engraved with scale marks, and the side wall of the plate II (105) is fixedly connected with the pointer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111183347.0A CN113624203B (en) | 2021-10-11 | 2021-10-11 | Level gauge for engineering survey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111183347.0A CN113624203B (en) | 2021-10-11 | 2021-10-11 | Level gauge for engineering survey |
Publications (2)
| Publication Number | Publication Date |
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| CN113624203A CN113624203A (en) | 2021-11-09 |
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