CN115076568B - Height control measuring device - Google Patents

Height control measuring device Download PDF

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Publication number
CN115076568B
CN115076568B CN202210854364.0A CN202210854364A CN115076568B CN 115076568 B CN115076568 B CN 115076568B CN 202210854364 A CN202210854364 A CN 202210854364A CN 115076568 B CN115076568 B CN 115076568B
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China
Prior art keywords
measuring
rod
gear
sleeve
crank
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CN202210854364.0A
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Chinese (zh)
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CN115076568A (en
Inventor
陈曦
李彦雷
晁锡麟
王超凡
纪洪鑫
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China 22MCC Group Corp Ltd
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China 22MCC Group Corp Ltd
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Priority to CN202210854364.0A priority Critical patent/CN115076568B/en
Publication of CN115076568A publication Critical patent/CN115076568A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/32Undercarriages for supports with three or more telescoping legs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F16M11/14Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels

Abstract

The invention provides a measuring device for elevation control, and relates to the technical field of engineering measurement. The device comprises a horizontal mechanism, a measurer, a fixed disc, support legs, a lifting rod, a locking button and a storage mechanism. Set up the lifter in the stabilizer blade, make the adjustable length of stabilizer blade to use through the cooperation of locking hole and locking button, fix the position of telescopic link. Through setting up receiving mechanism, when using in the position that the geology is soft on the side, at first stir the adjusting knob, can drive the swivel nut when the adjusting knob is stirred and rotate, can drive the taper rod after the swivel nut rotates and descend from the inside of connecting rod, until the conical head exposes, then peg graft the conical head and keep fixed in ground to structural stability that can improve equipment. Be provided with the levelling mechanism, drive the local lift of caliber through adjusting the levelling mechanism to be convenient for with the caliber leveling, guarantee that the caliber also can accurately carry out horizontal calibration in unevenness geology, improve the measuring accuracy.

Description

Height control measuring device
Technical Field
The invention relates to the technical field of engineering measurement, in particular to a measuring device for elevation control.
Background
The elevation control measurement is the control measurement work of establishing a vertical direction control network, and the task of the elevation control measurement is to accurately measure the elevations of a series of ground control points in a measurement area range by using a uniform elevation reference, so that an elevation control basis is provided for topographic mapping and engineering measurement.
When the common elevation control measuring device on the market is used, the geology and the terrain of a measuring position need to be considered, and when the measuring device is installed at a position with soft geology, the stability of installation of the detecting device needs to be ensured, so that the damage caused by the fact that equipment is toppled over during detection is avoided. However, the general measuring device is directly supported by the supporting legs, so that the stability is poor, and the measuring device is not suitable for being used in a position with soft geology, and therefore a novel height control measuring device is urgently needed.
Disclosure of Invention
In view of the above, the present invention provides an elevation control measuring apparatus to solve the above problems.
In view of the above object, the present invention provides a measuring device for elevation control, comprising: the device comprises a horizontal mechanism, a measurer, a fixed disc, support legs, a lifting rod, a locking button and a storage mechanism; the horizontal mechanism comprises a sleeve, a gear ring and an insert rod, the sleeve is rotationally connected to the bottom of the measurer, the gear ring is fixedly sleeved on the sleeve, the insert rod is in threaded connection in the sleeve, the end part of the insert rod is fixedly connected with a fixed disc, the bottom of the fixed disc is rotationally connected with a support leg, a lifting rod penetrates through the support leg, the bottom end of the lifting rod is connected with a containing mechanism, the containing mechanism comprises a connecting rod, a conical rod and a threaded sleeve, the connecting rod is connected with the bottom end of the lifting rod, an adjusting groove is formed in the lower side of the connecting rod, the bottom of the adjusting groove is rotationally connected with the threaded sleeve, an adjusting button is fixedly sleeved on the threaded sleeve, the conical rod is in threaded connection in the threaded sleeve, the bottom end of the conical rod is connected with a conical head, and the conical head penetrates through the bottom of the connecting rod; the locking hole has been seted up on the lateral wall of lifter, and the locking button is connected on the outer wall of stabilizer blade, and the tip of locking button passes the stabilizer blade joint in the locking hole.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up receiving mechanism, when the position of geology soft on the side uses, at first stir the adjusting knob, can drive the swivel nut when the adjusting knob is stirred and rotate, can drive the taper rod and descend from the inside of connecting rod after the swivel nut rotates, until the conical head exposes, then peg graft the conical head and keep fixed in ground to can improve equipment's structural stability.
2. Be provided with horizontal mechanism, drive the local lift of caliber through adjusting horizontal mechanism to be convenient for with the caliber leveling, guarantee that the caliber also can be accurate in unevenness geology and carry out horizontal calibration, improve measuring accuracy.
Furthermore, the measurer comprises a measuring box, a protective cover and a measuring head, wherein the measuring box is of a concave structure; the protective cover comprises a top plate and side plates, the top plate is positioned above the measuring box, the two sides of the top plate are respectively connected with the side plates, the side plates are clamped at the side opening of the measuring box, and a sealing layer is arranged at the bottoms of the side plates; the measuring head is located the measuring box inboard, and the both ends of measuring head rotate with the measuring box inner wall respectively and are connected.
Further, the measuring device further comprises a rotating mechanism, the rotating mechanism comprises a first crank, a first gear and a second gear, the first crank is connected to the outer wall of the measuring box, the output end of the first crank extends into the measuring box, the output end of the first crank is sleeved with the first gear, the first gear is meshed with the second gear, and the end portion of the measuring head is fixedly arranged in the second gear in a penetrating mode.
Further, still include the mechanism that opens and shuts, the mechanism that opens and shuts includes the second crank, first conical gear, second conical gear, thread bush and lead screw, the second crank is connected on the outer wall of measurement case, the output of second crank stretches into to the measurement incasement, fixed cover is equipped with first conical gear on the output of second crank, first conical gear is connected with second conical gear meshing, the thread bush is worn to be equipped with in the second conical gear fixedly, threaded connection has the lead screw in the thread bush, the tip and the roof of lead screw are connected.
Furthermore, the opening and closing mechanism further comprises a guide rod, the guide rod is connected with the top plate, and the guide rod is arranged in the measuring box in a penetrating mode.
Further, still include chassis, pivot and supporting disk, chassis fixed connection is in the bottom of caliber, and the bottom on chassis is connected with the one end of pivot, and the other end and the supporting disk of pivot are connected.
Furthermore, a gradienter and a compass are respectively arranged on the top of the measurer.
Further, still include spacing fender, spacing fender is connected on the fixed disk of stabilizer blade one side.
Drawings
FIG. 1 is a schematic diagram of an overall configuration of an elevation control measuring apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of an open position of a protective cover of an elevation control measuring device according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a partial enlarged view of FIG. 1 at B;
fig. 5 is a partially enlarged view of fig. 2 at C.
Labeled as: 1. a measuring box; 2. a shaft sleeve; 3. a measuring head; 4. a top plate; 5. a side plate; 6. a first gear; 7. a second gear; 8. a first crank; 9. a first bevel gear; 10. a second bevel gear; 11. a second crank; 12. a threaded sleeve; 13. a screw rod; 14. a guide bar; 15. a chassis; 16. a rotating shaft; 17. a support disc; 18. a sleeve; 19. a ring gear; 20. inserting a rod; 21. fixing the disc; 22. a shaft seat; 23. a support leg; 24. a limiting gear; 25. a lifting rod; 26. a locking button; 27. a locking hole; 28. a connecting rod; 29. a tapered rod; 30. a threaded sleeve; 31. an adjusting knob; 32. a conical head.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments below.
As shown in fig. 1, the height control measuring device according to the present invention comprises a horizontal mechanism, a measuring device, a fixing plate 21, a supporting leg 23, a lifting rod 25, a locking button 26, a receiving mechanism, a rotating mechanism, and an opening and closing mechanism.
As shown in fig. 2, the measuring device is composed of a measuring box 1, a protective cover and a measuring head 3, wherein the measuring box 1 is of a concave structure. The protection casing comprises roof 4 and curb plate 5, and roof 4 is located measurement case 1 top, and the size of roof 4 and the top surface size looks adaptation of measurement case 1. The both sides of roof 4 are connected with curb plate 5 respectively, and the size of curb plate 5 and the adaptation of measurement case 1 lateral part opening size, two curb plates 5 joint respectively are at the lateral part opening part of measurement case 1. The sealing layer is arranged at the bottom of the side plate 5 and made of rubber, and external dust can be prevented from entering the inside of the measurer by the sealing layer. The side plate 5 is made of transparent plastic, and when the protective cover is completely put down, the side plate 5 is provided with an observation port at the position opposite to the measuring head 3. The measuring head 3 is located the measuring box 1 inboard, and fixedly connected with axle sleeve 2 respectively on the inner wall of measuring box 1 both sides, the both ends of measuring head 3 rotate respectively to be connected in the axle sleeve 2 of both sides. The top of the measurer is respectively provided with a gradienter and a compass.
As shown in fig. 3, the rotating mechanism is composed of a first crank 8, a first gear 6 and a second gear 7, the first crank 8 is connected to the outer wall of the measuring box 1, the output end of the first crank 8 extends into the measuring box 1, the first gear 6 is fixedly sleeved on the output end of the first crank 8, the first gear 6 is meshed with the second gear 7, and the end of the measuring head 3 is fixedly arranged in the second gear 7 in a penetrating manner. Through setting up rotary mechanism, when the angle of measuring head 3 is adjusted to needs, at first wave first crank 8, wave first crank 8 after, first crank 8 can drive first gear 6 and rotate, can drive second gear 7 and rotate after first gear 6 rotates, and second gear 7 drives the both ends of measuring head 3 and rotates in two axle sleeves 2 respectively to the realization is to the regulation of measuring head 3 angle. And the diameter that sets up first gear 6 is less than the diameter of second gear 7, rotates first crank 8 after, the pinion drives the gear wheel and rotates, and the angular velocity of gear wheel is less than the angular velocity of pinion to can slow down the rotational speed of measuring head 3, in order to realize the more accurate angle modulation to measuring head 3.
As shown in fig. 4, the opening and closing mechanism is composed of a second crank 11, a first bevel gear 9, a second bevel gear 10, a threaded sleeve 12, a screw 13 and a guide rod 14, the second crank 11 is connected to the outer wall of the measuring box 1, the output end of the second crank 11 extends into the measuring box 1, the first bevel gear 9 is fixedly sleeved on the output end of the second crank 11, the first bevel gear 9 is meshed with the second bevel gear 10 and connected, the threaded sleeve 12 is fixedly arranged in the second bevel gear 10 in a penetrating manner, the screw 13 is connected to the threaded sleeve 12 in a threaded manner, and the end of the screw 13 is fixedly connected with the top plate 4. The bottom of the top plate 4 is also connected with a guide rod 14, and the guide rod 14 is arranged in the measuring box 1 in a penetrating way. In this embodiment, two guide rods 14 are provided, the measurement box 1 is of a rectangular structure, the lead screw 13 and the two guide rods 14 are respectively located at the end corners of the measurement box 1, and the positions of the lead screw 13 and the guide rods 14 are reasonably arranged, so that the normal use of the device is prevented from being affected by collision with the rotating mechanism. . Lead screw 13 and guide bar 14 all set up perpendicular to roof 4, through setting up guide bar 14, keep the level when making roof 4 go up and down, avoid blocking.
Through setting up the mechanism that opens and shuts, when needs use measuring head 3 to measure, at first wave second crank 11, second crank 11 can drive first bevel gear 9 and rotate, drive second bevel gear 10 after first bevel gear 9 rotates and rotate, drive thread bush 12 after second bevel gear 10 rotates and rotate in step, can drive inside lead screw 13 after thread bush 12 rotates and rise, lead screw 13 and two guide bars 14 drive the protection casing when rising in step and rise, expose measuring head 3 at caliber middle part. When the second crank 11 is reversed after the use is finished, the screw rod 13 drives the protective cover to descend, the protective cover blocks the measuring head 3, and damage and abrasion of the lens position are avoided when the measuring head is carried.
The bottom of the measurer is fixedly connected with a chassis 15, the bottom of the chassis 15 is connected with one end of a rotating shaft 16, and the other end of the rotating shaft 16 is connected with a supporting plate 17, so that the measurer can rotate. The bottom of supporting disk 17 is connected with a plurality of horizontal mechanism, and horizontal mechanism includes sleeve 18, ring gear 19 and inserted bar 20, and sleeve 18 rotates to be connected in the bottom of caliber, and the fixed cover is equipped with ring gear 19 on the sleeve 18, and threaded connection has inserted bar 20 in the sleeve 18, the tip and the fixed disk 21 fixed connection of inserted bar 20. Through setting up horizontal mechanism, when the horizontal angle of caliber needs to be adjusted, at first twist ring gear 19, ring gear 19 drives sleeve 18 after rotating and rotates, can rise along inserted bar 20 after sleeve 18 rotates, and reverse ring gear 19, sleeve 18 can descend along inserted bar 20, can control supporting disk 17 local lift when inserted bar 20 goes up and down to the horizontal angle of caliber is adjusted to this, thereby guarantees the level of caliber.
The bottom of the fixed plate 21 is connected with a plurality of shaft seats 22, and each shaft seat 22 is rotatably connected with a support leg 23, and the support legs 23 play a supporting role. The fixed disc 21 positioned outside the supporting leg 23 is connected with a limiting stopper 24, the limiting stopper 24 is made of rubber, and when the supporting leg 23 is opened towards the outside, the limiting stopper 24 can control the opening angle. As shown in fig. 5, a lifting rod 25 penetrates through the supporting leg 23, a plurality of locking holes 27 are formed in the side wall of the lifting rod 25, the locking button 26 is connected to the outer wall of the supporting leg 23, and the end portion of the locking button 26 penetrates through the supporting leg 23 and is clamped in the locking holes 27. The position of the lifting rod 25 is fixed by the cooperation of the locking hole 27 and the locking knob 26. When the length of the supporting leg 23 needs to be adjusted, the locking button 26 is firstly twisted to unlock the supporting leg 23 and the lifting rod 25, then the lifting rod 25 is pulled to a proper length, the locking button 26 is twisted again, and the locking end of the locking button 26 is clamped in the corresponding locking hole 27 to be locked, so that the height of the equipment is adjusted.
The bottom of lifter 25 is connected with receiving mechanism, receiving mechanism is by connecting rod 28, taper rod 29 and swivel nut 30 are constituteed, connecting rod 28 is connected with the lifter 25 bottom, the adjustment tank has been seted up to the downside of connecting rod 28, the adjustment tank bottom is rotated through the bearing and is connected with swivel nut 30, fixed cover is equipped with adjusting knob 31 on the swivel nut 30, threaded connection has taper rod 29 in the swivel nut 30, the top of taper rod 29 is connected with spacing dish, the bottom of taper rod 29 is connected with the conical head 32, the dress is worn in the connecting rod 28 bottom to the conical head 32. Through setting up receiving mechanism, when this device is used to the position that geology is soft on the side, stir adjusting knob 31 at first, can drive swivel nut 30 when adjusting knob 31 is stirred and rotate, can drive the taper rod 29 after swivel nut 30 rotates and descend from the inside of connecting rod 28, until conical head 32 exposes, then pegs graft conical head 32 and keep fixed in ground to improve equipment's structural stability.
When the device is used, the device is placed on the ground, the adjusting button 31 in the containing mechanism is rotated, and the conical head 32 is leaked out and is used for being inserted into the ground to be kept fixed. The height of the legs 23 is adjusted by means of the locking knobs 26 and locking holes 27, and after the device has been secured, the measuring device is horizontally calibrated by adjusting the levelling mechanism. And the second crank 11 is turned to lift the shield and allow the leakage of the measuring head 3. The first crank 8 is rotated to adjust the angle of the measuring head 3, and after the fixing and the adjustment of the device are completed, the measurement is started. After the measurement is finished, the first crank 8 and the second crank 11 are rotated reversely, the measuring head 3 is reset, the protective cover is put down, and the measuring head 3 is protected. The legs 23 are stored, and the conical head 32 is stored.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalents, improvements, and the like that may be made without departing from the spirit or scope of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. An elevation-controlled surveying apparatus comprising: the device comprises a horizontal mechanism, a measurer, a fixed disc, support legs, a lifting rod, a locking button, a containing mechanism and an opening and closing mechanism; it is characterized in that the preparation method is characterized in that,
the horizontal mechanism comprises a sleeve, a gear ring and an insert rod, the sleeve is rotatably connected to the bottom of the measurer, the gear ring is fixedly sleeved on the sleeve, the insert rod is in threaded connection in the sleeve, the end part of the insert rod is fixedly connected with a fixed disc, the bottom of the fixed disc is rotatably connected with support legs, lifting rods penetrate through the support legs, the bottom ends of the lifting rods are connected with an accommodating mechanism, the accommodating mechanism comprises a connecting rod, a conical rod and a screw sleeve, the connecting rod is connected with the bottom end of the lifting rod, an adjusting groove is formed in the lower side of the connecting rod, the bottom of the adjusting groove is rotatably connected with the screw sleeve, adjusting buttons are fixedly sleeved on the screw sleeve, conical rods are in threaded connection in the screw sleeve, the top of each conical rod is connected with a limiting disc, the bottom ends of the conical rods are connected with conical heads, and the conical heads penetrate through the bottoms of the connecting rods; a locking hole is formed in the side wall of the lifting rod, the locking button is connected to the outer wall of the support leg, and the end part of the locking button penetrates through the support leg and is clamped in the locking hole; the measurer comprises a measuring box, a protective cover and a measuring head, wherein the measuring box is of a concave structure; the protective cover comprises a top plate and side plates, the top plate is positioned above the measuring box, the two sides of the top plate are respectively connected with the side plates, the side plates are clamped at the side opening of the measuring box, and a sealing layer is arranged at the bottom of each side plate; the measuring head is positioned on the inner side of the measuring box, and two ends of the measuring head are respectively rotatably connected with the inner wall of the measuring box;
the opening and closing mechanism comprises a second crank handle, a first bevel gear, a second bevel gear, a threaded sleeve and a screw rod, the second crank handle is connected to the outer wall of the measuring box, the output end of the second crank handle extends into the measuring box, the first bevel gear is fixedly sleeved on the output end of the second crank handle, the first bevel gear is in meshed connection with the second bevel gear, the threaded sleeve is fixedly arranged in the second bevel gear in a penetrating mode, the screw rod is connected to the threaded sleeve in a threaded mode, and the end portion of the screw rod is connected with the top plate; when the measuring head is required to be used for measurement, the second crank handle is rotated, the second crank handle drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the threaded sleeve to rotate, the threaded sleeve drives the screw rod to rise, and the screw rod drives the protective cover to rise, so that the measuring head in the middle of the measurer is exposed; after the measurement is finished, the second crank is reversed, the screw rod drives the protective cover to descend, and the protective cover blocks the measuring head.
2. The height-controlled measuring device according to claim 1, further comprising a rotating mechanism, wherein the rotating mechanism comprises a first crank, a first gear and a second gear, the first crank is connected to the outer wall of the measuring box, the output end of the first crank extends into the measuring box, the first gear is sleeved on the output end of the first crank, the first gear is meshed with the second gear, and the end of the measuring head is fixedly arranged in the second gear in a penetrating manner.
3. The height-controlled measuring device according to claim 1, wherein the opening and closing mechanism further comprises a guide rod, the guide rod is connected with the top plate, and the guide rod is arranged in the measuring box in a penetrating manner.
4. An elevation control measuring device as claimed in claim 1, further comprising a base plate, a rotating shaft and a supporting plate, wherein the base plate is fixedly connected to the bottom of the measuring device, the bottom of the base plate is connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the supporting plate.
5. The elevation control measuring apparatus as claimed in claim 1, wherein a level meter and a compass are installed on the top of the measuring unit, respectively.
6. The height-controlled measuring device according to claim 1, further comprising a limit stop, wherein the limit stop is connected to the fixing plate on one side of the supporting leg.
CN202210854364.0A 2022-07-20 2022-07-20 Height control measuring device Active CN115076568B (en)

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CN115076568B true CN115076568B (en) 2022-11-15

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CN115418918A (en) * 2022-10-31 2022-12-02 中国二十二冶集团有限公司 Concrete collecting surface elevation control device for square pavement

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CN201487504U (en) * 2009-08-07 2010-05-26 吉多思实业(深圳)有限公司 Tripod support leg
CN110335470A (en) * 2019-07-03 2019-10-15 浙江工贸职业技术学院 A kind of device of detection vehicle violation parking
CN213274266U (en) * 2020-11-25 2021-05-25 于迪 Measuring device for multi-purpose architectural design
CN112594489A (en) * 2020-12-09 2021-04-02 谭玉松 Engineering exploration is with supplementary mapping device with constriction structure
CN213714363U (en) * 2020-12-25 2021-07-16 北京丽景建筑工程有限公司 Measuring device for construction
CN113775899A (en) * 2021-09-12 2021-12-10 何庆宝 Land planning and measuring system

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