CN113803588A - Surveying instrument positioner for surveying and mapping engineering - Google Patents

Surveying instrument positioner for surveying and mapping engineering Download PDF

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Publication number
CN113803588A
CN113803588A CN202111064914.0A CN202111064914A CN113803588A CN 113803588 A CN113803588 A CN 113803588A CN 202111064914 A CN202111064914 A CN 202111064914A CN 113803588 A CN113803588 A CN 113803588A
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China
Prior art keywords
surveying
bearing box
surveying instrument
fixed
rod
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Granted
Application number
CN202111064914.0A
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Chinese (zh)
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CN113803588B (en
Inventor
谭林
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Shandong Institute of Geological Surveying and Mapping
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Shandong Institute of Geological Surveying and Mapping
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Priority to CN202111064914.0A priority Critical patent/CN113803588B/en
Publication of CN113803588A publication Critical patent/CN113803588A/en
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Publication of CN113803588B publication Critical patent/CN113803588B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043—Allowing translations
    • F16M11/045—Allowing translations adapted to left-right translation movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages 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
    • F16M11/242—Undercarriages 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 spreading of the legs
    • F16M11/245—Members limiting spreading of legs, e.g. "umbrella legs"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages 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
    • F16M11/242—Undercarriages 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 spreading of the legs
    • F16M11/247—Members preventing slipping of the feet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30—Assessment of water resources

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Measuring And Other Instruments (AREA)

Abstract

The invention discloses a mapping instrument positioning device for mapping engineering, which comprises a bearing box, wherein a rotating mechanism is arranged on one side of the bearing box, a driving rod is arranged on the rotating mechanism, and the driving rod is rotatably connected in the bearing box. The invention can rotate the integral gravity of the bearing box to the supporting column, so that the surveying instrument can be moved in a small range without moving a tripod in the surveying process, the surveying instrument is more convenient and fast in the surveying process, simultaneously, the stability and the safety of the surveying instrument can be improved, the surveying instrument can be automatically positioned after being moved, the surveying instrument is more stable in the surveying process, and meanwhile, when the surveying direction of the surveying instrument needs to be changed, the rotation adjustment is automatically carried out on the surveying instrument, the convenience and the practicability of the surveying instrument are effectively improved, and the surveying instrument is more convenient, fast, stable and safe in the measuring process.

Description

Surveying instrument positioner for surveying and mapping engineering
Technical Field
The invention relates to the technical field of engineering surveying and mapping, in particular to a surveying and mapping instrument positioning device for surveying and mapping engineering.
Background
In the construction, need realize multiple measurements such as range finding, height finding, angle finding through the surveying instrument, when the surveying instrument used, need place the surveying instrument through the tripod, make the surveying instrument remain stable in the measurement process.
In the surveying instrument measurement process, need carry out the removal or the rotation of minim scope to surveying instrument itself, but tripod among the prior art removes or when rotating the surveying instrument at every turn, all need debug, make surveying instrument the same with the horizontal angle of last survey and drawing position, and the surveying instrument removes at every turn and adjusts not only increased the trouble that the surveying instrument used, still can influence the measurement accuracy of surveying instrument because of adjusting not accurate enough, and remove the surveying instrument under the condition of unmovable tripod, can lead to the whole focus on the tripod to change because of the weight of surveying instrument, thereby the danger that the tripod overturns takes place easily, and then the security and the stability of tripod have been reduced, for this reason, we have proposed a surveying instrument positioner for the survey and drawing engineering to solve above-mentioned problem.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a mapping instrument positioning device for mapping engineering.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mapping instrument positioning device for mapping engineering comprises a bearing box, wherein one side of the bearing box is provided with a rotating mechanism, the rotating mechanism is provided with a driving rod, the driving rod is rotatably connected in the bearing box and is sleeved with a first bevel gear in a sliding manner, the two sides of the driving rod are respectively fixed with a long block, the two long blocks are arranged on the first bevel gear in a penetrating manner, one side of the upper end of the first bevel gear is meshed with a second bevel gear, the upper end of the second bevel gear is rotatably connected with an L-shaped bearing frame, the first bevel gear is rotatably connected to the inner side of the L-shaped bearing frame, the middle part of the L-shaped bearing frame is provided with a round opening, the driving rod and the two long blocks are arranged in the round opening, the middle part of the upper end of the bearing box is provided with a long opening, the long opening is sleeved with a transmission rod in a sliding manner, the lower end of the transmission rod is rotatably sleeved at the middle part of the upper end of the L-shaped bearing frame, the lower end of the transmission rod is fixedly connected to the middle part of the upper end of the second bevel gear, the upper end of the transmission rod is rotatably sleeved with a movable seat, the upper end of the movable seat is rotatably connected with a machine base, the upper end of the transmission rod is fixedly connected to the middle part of the lower end of the machine base, a machine body is installed at the upper end of the machine base, one side of the movable seat is provided with a positioning mechanism, a fixed block is arranged on the positioning mechanism, the fixed block is fixedly connected to one side of the movable seat, a clamping rod is arranged on the fixed block in a penetrating mode, the lower end of the clamping rod is fixedly sleeved with a lower baffle, the upper end of the lower baffle is fixed with a first spring, the first spring is sleeved on the clamping rod, the upper end of the first spring is fixedly connected to the lower end of the fixed block, one side of the upper end of the bearing box is provided with a clamping groove, the clamping rod is correspondingly arranged above the clamping groove, and the upper end of the clamping rod is fixed with an upper baffle, the utility model discloses a support box, including bearing box, bracing piece, support column, two clamps, support rod, support column, two clamps, two bolts, nut, two nuts all contradict in one side of one of them clamp, the lower extreme middle part of bearing box can be dismantled and be connected with the support column, the lower extreme both sides of bearing box all rotate and are connected with the bracing piece, and the lower extreme of two support rods all rotates and is connected with the folder, and two clamps contradict respectively in the both sides of support column, and two clamps go up to run through jointly and be provided with two bolts, and equal screw thread has cup jointed the nut on two bolts, and two nuts all contradict in one side of one of them clamp.
Preferably, in order to adjust the survey and drawing direction realization automatic accurate regulation of surveying instrument, slewing mechanism includes the mount of fixed connection in bearing case one side, install servo motor in the mount, servo motor's output shaft end runs through one side and the fixed connection of bearing case in the one end of actuating lever.
Preferably, in order to fix the surveying instrument after removing the surveying instrument and avoid the surveying instrument to appear the condition of removing at the survey and drawing in-process, positioning mechanism includes two risers of fixed connection in removal seat one side, two risers are located the both sides of kelly respectively, all run through on two risers and be provided with two horizontal poles, the one end of two horizontal poles that are located on same riser is fixed with the mounting jointly, all rotate on two mountings and cup jointed the pulley, two pulleys are contradicted respectively in the lower extreme both sides of overhead gage, the second spring has all been cup jointed on four horizontal poles, the one end of four second springs is fixed connection respectively in one side of two mountings, the other end of four second springs is fixed connection respectively on the relative inner wall of two risers, the other end of four horizontal poles all is fixed with the dog, four dogs contradict respectively on another lateral wall of two risers.
Preferably, make surveying instrument more stable in the measurement process in order to support the surveying instrument, fixed cover has connect first retaining ring on the support column, the lower extreme of first retaining ring is contradicted and is had the sliding collar, the sliding collar slides and cup joints on the support column, the equidistant rotation of a week of sliding collar is connected with three lower support bar, the equidistant rotation of lower extreme a week of support column is connected with three connecting rod, and the one end of three connecting rod rotates respectively and connects on three lower support bar, the screw has cup jointed the screw on the sliding collar.
Preferably, in order to limit the two clamping pieces to slide on the supporting column, so that the two upper supporting rods can support the carrying box more stably, two second retaining rings are fixedly sleeved on the supporting column at equal intervals, and the two clamping pieces are arranged between the two second retaining rings together.
Preferably, in order to make the movable base more lubricated when moving on the bearing box, the lower extreme both sides of moving the base all are fixed with the baffle, and it is connected with two smooth rollers to rotate jointly between two baffles, and two smooth rollers all contradict in the upper end of bearing box.
Preferably, for the restriction L type bear the weight of and rotate and make L type bearing frame more steady when moving simultaneously can restrict the rotation that removes the seat and make and remove the seat and keep steady removal when removing, upper end both sides in the bearing box all are fixed with the slide, and two sliders have all been cup jointed in two slides in the slide, and four sliders are fixed connection respectively in the upper end four corners that L type bore the weight of.
Preferably, for more accurate remove the measuring apparatu and make the shift position of measuring apparatu reach the precision, the upper end one side of bearing box is provided with the scale, scale and draw-in groove correspond the setting.
The invention has the beneficial effects that:
1. by using the two upper supporting rods, the bearing box can be supported, so that the integral stress gravity center on the bearing box is converted onto the supporting rods, the purpose that the surveying instrument moves on the bearing box in a small range can be realized, the purpose that a tripod is not moved and the surveying instrument moves in a small range is realized in the measuring process of the surveying instrument, the measuring accuracy of the surveying instrument is effectively guaranteed, the labor intensity of workers can be reduced, and the surveying instrument is more convenient, safer and more stable in the measuring process;
2. the position of the surveying instrument can be adjusted at will in the surveying and mapping process by using the rotating mechanism and the positioning mechanism, the surveying and mapping instrument can be kept stable after the adjustment is finished, and meanwhile, the surveying and mapping direction of the surveying and mapping instrument can be automatically rotated when the surveying and mapping instrument needs to be rotated, so that the convenience and the practicability of surveying and mapping of the surveying and mapping instrument are effectively improved, and the accuracy and the stability of the surveying and mapping instrument can be improved;
in conclusion, the invention can rotate the integral gravity of the bearing box onto the supporting column, so that the surveying instrument can be moved in a small range without moving a tripod in the surveying process, the surveying instrument is more convenient and fast in the surveying process, simultaneously, the stability and the safety of the surveying instrument can be improved, the surveying instrument can be automatically positioned after being moved, the surveying instrument is more stable in the surveying process, and meanwhile, when the surveying instrument needs to change the surveying direction, the rotation adjustment is automatically carried out on the surveying instrument, the convenience and the practicability of the surveying instrument are effectively improved, and the surveying instrument is more convenient, fast, stable and safe in the measuring process.
Drawings
FIG. 1 is a connection structure diagram of a surveying instrument positioning device for surveying and mapping engineering according to the present invention;
FIG. 2 is a top view of a carrying box of a positioning device of a surveying instrument for surveying and mapping engineering according to the present invention;
FIG. 3 is a schematic structural view of a movable base of a positioning device of a surveying instrument for surveying and mapping engineering according to the present invention;
FIG. 4 is an enlarged view of the location A of the surveying instrument locating device for surveying and mapping engineering according to the present invention;
FIG. 5 is an enlarged view of the location B of the surveying instrument positioning device for surveying and mapping engineering according to the present invention;
fig. 6 is a schematic structural view of an L-shaped bearing frame of a surveying instrument positioning device for surveying and mapping engineering according to the present invention.
In the figure: the device comprises a bearing box 1, a fixing frame 2, a servo motor 3, a driving rod 4, a strip block 5, a first bevel gear 6, a bearing frame 7L, a second bevel gear 8, a transmission rod 9, a strip opening 10, a moving seat 11, a base 12, a machine body 13, a baffle 14, a sliding roller 15, a fixed block 16, a clamping rod 17, a lower baffle 18, a first spring 19, an upper baffle 20, a vertical plate 21, a transverse rod 22, a second spring 23, a fixed block 24, a pulley 25, a baffle 26, a clamping groove 27, a graduated scale 28, a slideway 29, a sliding block 30, a supporting column 31, a sliding ring 32, a lower supporting rod 33, a connecting rod 34, a screw 35, a first retainer ring 36, an upper supporting rod 37, a clamping piece 38, a bolt 39, a nut 40 and a second retainer ring 41.
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.
Example 1
Referring to fig. 1-6, a mapping instrument positioning device for mapping engineering, comprising a bearing box 1, a rotating mechanism is arranged on one side of the bearing box 1, the bearing box 1 is used for bearing each part, part of the parts on the rotating mechanism can be supported by the bearing box 1, a driving rod 4 is arranged on the rotating mechanism, the driving rod 4 is rotatably connected in the bearing box 1, when the rotating mechanism is operated, the driving rod 4 can be driven to rotate, the rotating mechanism comprises a fixing frame 2 fixedly connected on one side of the bearing box 1, a servo motor 3 is arranged in the fixing frame 2, the fixing frame 2 can fix the servo motor 3, the servo motor 3 is fixed on one side of the bearing box 1, the servo motor 3 is connected with the matching parts, the stable operation is convenient, the program can be set, the automatic operation is realized, the tail end of an output shaft of the servo motor 3 penetrates through one side of the bearing box 1 and is fixedly connected with one end of the driving rod 4, when the servo motor 3 operates, the driving rod 4 can be driven to rotate.
In the invention, a first bevel gear 6 is sleeved on a driving rod 4 in a sliding manner, two long blocks 5 are fixed on two sides of the driving rod 4, the two long blocks 5 are arranged on the first bevel gear 6 in a penetrating manner, the first bevel gear 6 can slide on the driving rod 4, the rotation of the first bevel gear 6 can be limited by the two long blocks 5, so that the driving rod 4 can drive the first bevel gear 6 to rotate through the two long blocks 5 when rotating, a second bevel gear 8 is meshed with one side of the upper end of the first bevel gear 6, the second bevel gear 8 can be driven to rotate when the first bevel gear 6 rotates, an L-shaped bearing frame 7 is rotatably connected with the upper end of the second bevel gear 8, the first bevel gear 6 is rotatably connected to the inner side of the L-shaped bearing frame 7, and the second bevel gear 8 can drive the first bevel gear 6 to move when moving through the L-shaped bearing frame 7, the round mouth has been seted up at the middle part that the L type bore 7, and actuating lever 4 and two rectangular blocks 5 all set up in the round mouth, can make actuating lever 4 and rectangular blocks 5 do not influence the L type through the round mouth and bore 7 when rotating.
In the invention, the middle part of the upper end of the bearing box 1 is provided with a strip opening 10, the strip opening 10 is sleeved with a transmission rod 9 in a sliding manner, the transmission rod 9 can move through the strip opening 10, the upper end and the lower end of the transmission rod 9 can be respectively connected with the components in the bearing box 1 and the components at the upper end of the bearing box 1, the lower end of the transmission rod 9 is rotatably sleeved in the middle part of the upper end of the L-shaped bearing frame 7, the lower end of the transmission rod 9 is fixedly connected with the middle part of the upper end of the second bevel gear 8, the L-shaped bearing frame 7 can be driven to move through the movement of the transmission rod 9, but the rotation of the transmission rod 9 can not be limited by the L-shaped bearing frame 7, when the second bevel gear 8 rotates, the transmission rod 9 can be driven to rotate, the two sides of the upper end in the bearing box 1 are both fixed with slide ways 29, the two slide blocks 30 are sleeved in the two slide ways 29, the four slide blocks 30 are respectively and fixedly connected at the four corners of the upper end of the L-shaped bearing frame 7, when the L-shaped bearing frame 7 moves, the four sliding blocks 30 can be driven to slide on the two sliding ways 29, and the rotation of the L-shaped bearing frame 7 can be limited by the sliding limitation of the four sliding blocks 30 on the two sliding ways 29, so that the L-shaped bearing frame 7 can keep stable movement during the movement.
In the invention, the upper end of the transmission rod 9 is rotatably sleeved with a movable seat 11, the transmission rod 9 can be driven to move by the movement of the movable seat 11, but the movable seat 11 does not limit the rotation of the transmission rod 9, two sides of the lower end of the movable seat 11 are both fixed with baffles 14, two sliding rollers 15 are rotatably connected between the two baffles 14, the two sliding rollers 15 are both abutted against the upper end of the bearing box 1, the two sliding rollers 15 can be installed at the lower end of the movable seat 11 through the two baffles 14, so that the movable seat 11 can drive the two sliding rollers 15 to move when moving, the movable seat 11 can be more lubricated when moving through the two sliding rollers 15, the upper end of the movable seat 11 is rotatably connected with a machine base 12, the upper end of the transmission rod 9 is fixedly connected to the middle part of the lower end of the machine base 12, the machine body 13 is installed at the upper end of the machine base 12, and the machine base 12 can be driven to move when the movable seat 11 moves, the base 12 is used for installing the machine body 13, the machine body 13 can be driven to rotate and move through rotation and movement of the base 12, when the transmission rod 9 rotates, the base 12 can be driven to rotate, the machine body 13 can be driven to rotate through rotation of the base 12, the measuring angle of the machine body 13 is automatically adjusted, and the machine body 13 is a device for measuring height, length and angle in engineering construction.
In the invention, one side of the moving seat 11 is provided with a positioning mechanism, the moving seat 11 can be fixed through the positioning mechanism, so that the machine body 13 is more stable in the measuring process, the positioning mechanism is provided with a fixed block 16, the fixed block 16 is fixedly connected to one side of the moving seat 11, the fixed block 16 can be stabilized through a part on the fixed block 16, the fixed block 16 can be stabilized, so that the moving seat 11 can be stabilized, the positioning mechanism comprises two vertical plates 21 fixedly connected to one side of the moving seat 11, the two vertical plates 21 are respectively positioned at two sides of a clamping rod 17, two transverse rods 22 are respectively arranged on the two vertical plates 21 in a penetrating manner, the four transverse rods 22 can be supported through the two vertical plates 21, the four transverse rods 22 can move on the two vertical plates 21, one end of the two transverse rods 22 positioned on the same vertical plate 21 is jointly fixed with a fixing piece 24, and pulleys 25 are rotatably sleeved on the two fixing pieces 24, two pulleys 25 contradict respectively in the lower extreme both sides of overhead gage 20, can bear two fixing pieces 24 through four horizontal poles 22, and two fixing pieces 24 are used for bearing pulley 25, when removing seat 11 and need remove, can lift overhead gage 20, make two pulleys 25 stop overhead gage 20, avoid overhead gage 20 to descend, overhead gage 20 is blockked and can be blockked jamming rod 17, makes jamming rod 17 not descend.
In the invention, the four cross rods 22 are respectively sleeved with the second springs 23, one ends of the four second springs 23 are respectively and fixedly connected to one sides of the two fixing pieces 24, the other ends of the four second springs 23 are respectively and fixedly connected to the opposite inner walls of the two vertical plates 21, the second springs 23 have elasticity, the two fixing pieces 24 can drive the two pulleys 25 to move in opposite directions through the elasticity of the second springs 23, the upper baffle 20 can be blocked after entering the upper ends of the two pulleys 25 through the opposite movement of the two pulleys 25, the other ends of the four cross rods 22 are respectively and fixedly provided with the stoppers 26, the four stoppers 26 respectively abut against the other side walls of the two vertical plates 21, and the stoppers 26 can block the other ends of the cross rods 22 to prevent the cross rods 22 from falling off from the vertical plates 21.
In the invention, a clamping rod 17 penetrates through a fixed block 16, the clamping rod 17 can be supported by the fixed block 16, the clamping rod 17 can ascend and descend on the fixed block 16, when the clamping rod 17 descends, the fixed block 16 can be stabilized, and the purpose of positioning the movable seat 11 can be realized, a lower baffle 18 is fixedly sleeved at the lower end of the clamping rod 17, a first spring 19 is fixed at the upper end of the lower baffle 18, the first spring 19 is sleeved on the clamping rod 17, the upper end of the first spring 19 is fixedly connected at the lower end of the fixed block 16, the first spring 19 has elasticity, the lower baffle 18 can be driven by the first spring 19 to move downwards, the lower baffle 18 can drive the clamping rod 17 to move downwards, a clamping groove 27 is formed in one side of the upper end of the bearing box 1, the clamping rod 17 is correspondingly arranged above the clamping groove 27, a plurality of circular grooves are formed in the clamping groove 27, the clamping rod 17 can enter one of the circular grooves 27 by descending and moving, when the lower end of the clamping rod 17 enters the clamping groove 27, the clamping rod 17 and the fixed block 16 can be positioned, the fixed block 16 is positioned to enable the movable seat 11 to be stable, the movable seat 11 is stable to enable the machine body 13 to be stable, and then the machine body 13 can be more stable in the measuring process.
In the invention, an upper baffle 20 is fixed at the upper end of a clamping rod 17, the upper baffle 20 can block the upper end of the clamping rod 17 to prevent the clamping rod 17 from falling off from the upper baffle 20, a support column 31 is detachably connected to the middle part of the lower end of a carrying box 1, the carrying box 1 can be supported through the support column 31 to enable the carrying box 1 to be more stable, upper support rods 37 are rotatably connected to both sides of the lower end of the carrying box 1, clamping pieces 38 are rotatably connected to the lower ends of the two upper support rods 37, the two clamping pieces 38 respectively abut against both sides of the support column 31, after the carrying box 1 is installed at the upper end of the support column 31, the two clamping pieces 38 at the lower ends of the two upper support rods 37 can be connected to the support column 31, the carrying box 1 can be supported through the two upper support rods 37, so that the gravity borne by the carrying box 1 is converted onto the support columns 31, thereby avoiding the influence of different gravity points on the stability of the carrying box 1 caused by the movement of a machine body 13 on the carrying box 1, the bearing box 1 is safer and more stable.
In the invention, two bolts 39 are commonly arranged on the two clamping pieces 38 in a penetrating manner, nuts 40 are respectively sleeved on the two bolts 39 in a threaded manner, the two nuts 40 are respectively abutted against one side of one of the clamping pieces 38, when the two clamping pieces 38 are connected to the supporting column 31, the two clamping pieces 38 can be connected by screwing the two bolts 39 and the two nuts 40, two second retaining rings 41 are fixedly sleeved on the supporting column 31 at equal intervals, the two clamping pieces 38 are commonly arranged between the two second retaining rings 41, the two clamping pieces 38 can be retained by the two second retaining rings 41, the two clamping pieces 38 can be effectively prevented from sliding on the supporting column 31, and the two upper supporting rods 37 can more stably support the carrying box 1.
In the invention, a first retainer ring 36 is fixedly sleeved on a support column 31, the lower end of the first retainer ring 36 is abutted with a sliding ring 32, the sliding ring 32 is slidably sleeved on the support column 31, the sliding ring 32 can slide on the support column 31, the upper part of the sliding ring 32 can be blocked by the first retainer ring 36, the ascending position of the sliding ring 32 can be only arranged at the lower end of the first retainer ring 36, three lower support rods 33 are rotatably connected with one circle of the sliding ring 32 at equal intervals, the three lower support rods 33 can be driven to ascend and descend by the ascending and descending of the sliding ring 32, three connecting rods 34 are rotatably connected with one circle of the lower end of the support column 31 at equal intervals, one ends of the three connecting rods 34 are respectively rotatably connected with the three lower support rods 33, the three lower support rods 33 can be connected with the support column 31 by the three connecting rods 34, when the sliding ring 32 ascends to the lower end of the first retainer ring 36, the three lower support rods 33 can be opened by the cooperation of the three connecting rods 34, opening through three lower support bar 33 can support column 31, makes support column 31 more stable, can make three lower support bar 33 fold through the decline of sliding ring 32 simultaneously, and the receipts of the support column 31 of being convenient for have a screw 35 cup jointed to the screw thread on the sliding ring 32, can make sliding ring 32 fix a position on support column 31 through screw 35, make the position of sliding ring 32 on support column 31 stable.
Example 2
Referring to fig. 1-6, a mapping instrument positioning device for mapping engineering, comprising a bearing box 1, a rotating mechanism is arranged on one side of the bearing box 1, the bearing box 1 is used for bearing each part, part of the parts on the rotating mechanism can be supported by the bearing box 1, a driving rod 4 is arranged on the rotating mechanism, the driving rod 4 is rotatably connected in the bearing box 1, when the rotating mechanism is operated, the driving rod 4 can be driven to rotate, the rotating mechanism comprises a fixing frame 2 fixedly connected on one side of the bearing box 1, a servo motor 3 is arranged in the fixing frame 2, the fixing frame 2 can fix the servo motor 3, the servo motor 3 is fixed on one side of the bearing box 1, the servo motor 3 is connected with the matching parts, the stable operation is convenient, the program can be set, the automatic operation is realized, the tail end of an output shaft of the servo motor 3 penetrates through one side of the bearing box 1 and is fixedly connected with one end of the driving rod 4, when the servo motor 3 operates, the driving rod 4 can be driven to rotate.
In the invention, a first bevel gear 6 is sleeved on a driving rod 4 in a sliding manner, two long blocks 5 are fixed on two sides of the driving rod 4, the two long blocks 5 are arranged on the first bevel gear 6 in a penetrating manner, the first bevel gear 6 can slide on the driving rod 4, the rotation of the first bevel gear 6 can be limited by the two long blocks 5, so that the driving rod 4 can drive the first bevel gear 6 to rotate through the two long blocks 5 when rotating, a second bevel gear 8 is meshed with one side of the upper end of the first bevel gear 6, the second bevel gear 8 can be driven to rotate when the first bevel gear 6 rotates, an L-shaped bearing frame 7 is rotatably connected with the upper end of the second bevel gear 8, the first bevel gear 6 is rotatably connected to the inner side of the L-shaped bearing frame 7, and the second bevel gear 8 can drive the first bevel gear 6 to move when moving through the L-shaped bearing frame 7, the round mouth has been seted up at the middle part that the L type bore 7, and actuating lever 4 and two rectangular blocks 5 all set up in the round mouth, can make actuating lever 4 and rectangular blocks 5 do not influence the L type through the round mouth and bore 7 when rotating.
In the invention, the middle part of the upper end of the bearing box 1 is provided with a strip opening 10, the strip opening 10 is sleeved with a transmission rod 9 in a sliding manner, the transmission rod 9 can move through the strip opening 10, the upper end and the lower end of the transmission rod 9 can be respectively connected with the components in the bearing box 1 and the components at the upper end of the bearing box 1, the lower end of the transmission rod 9 is rotatably sleeved in the middle part of the upper end of the L-shaped bearing frame 7, the lower end of the transmission rod 9 is fixedly connected with the middle part of the upper end of the second bevel gear 8, the L-shaped bearing frame 7 can be driven to move through the movement of the transmission rod 9, but the rotation of the transmission rod 9 can not be limited by the L-shaped bearing frame 7, when the second bevel gear 8 rotates, the transmission rod 9 can be driven to rotate, the two sides of the upper end in the bearing box 1 are both fixed with slide ways 29, the two slide blocks 30 are sleeved in the two slide ways 29, the four slide blocks 30 are respectively and fixedly connected at the four corners of the upper end of the L-shaped bearing frame 7, when the L-shaped bearing frame 7 moves, the four sliding blocks 30 can be driven to slide on the two sliding ways 29, and the rotation of the L-shaped bearing frame 7 can be limited by the sliding limitation of the four sliding blocks 30 on the two sliding ways 29, so that the L-shaped bearing frame 7 can keep stable movement during the movement.
In the invention, the upper end of the transmission rod 9 is rotatably sleeved with a movable seat 11, the transmission rod 9 can be driven to move by the movement of the movable seat 11, but the movable seat 11 does not limit the rotation of the transmission rod 9, two sides of the lower end of the movable seat 11 are both fixed with baffles 14, two sliding rollers 15 are rotatably connected between the two baffles 14, the two sliding rollers 15 are both abutted against the upper end of the bearing box 1, the two sliding rollers 15 can be installed at the lower end of the movable seat 11 through the two baffles 14, so that the movable seat 11 can drive the two sliding rollers 15 to move when moving, the movable seat 11 can be more lubricated when moving through the two sliding rollers 15, the upper end of the movable seat 11 is rotatably connected with a machine base 12, the upper end of the transmission rod 9 is fixedly connected to the middle part of the lower end of the machine base 12, the machine body 13 is installed at the upper end of the machine base 12, and the machine base 12 can be driven to move when the movable seat 11 moves, the base 12 is used for installing the machine body 13, the machine body 13 can be driven to rotate and move through rotation and movement of the base 12, when the transmission rod 9 rotates, the base 12 can be driven to rotate, the machine body 13 can be driven to rotate through rotation of the base 12, the measuring angle of the machine body 13 is automatically adjusted, and the machine body 13 is a device for measuring height, length and angle in engineering construction.
In the invention, one side of the moving seat 11 is provided with a positioning mechanism, the moving seat 11 can be fixed through the positioning mechanism, so that the machine body 13 is more stable in the measuring process, the positioning mechanism is provided with a fixed block 16, the fixed block 16 is fixedly connected to one side of the moving seat 11, the fixed block 16 can be stabilized through a part on the fixed block 16, the fixed block 16 can be stabilized, so that the moving seat 11 can be stabilized, the positioning mechanism comprises two vertical plates 21 fixedly connected to one side of the moving seat 11, the two vertical plates 21 are respectively positioned at two sides of a clamping rod 17, two transverse rods 22 are respectively arranged on the two vertical plates 21 in a penetrating manner, the four transverse rods 22 can be supported through the two vertical plates 21, the four transverse rods 22 can move on the two vertical plates 21, one end of the two transverse rods 22 positioned on the same vertical plate 21 is jointly fixed with a fixing piece 24, and pulleys 25 are rotatably sleeved on the two fixing pieces 24, two pulleys 25 contradict respectively in the lower extreme both sides of overhead gage 20, can bear two fixing pieces 24 through four horizontal poles 22, and two fixing pieces 24 are used for bearing pulley 25, when removing seat 11 and need remove, can lift overhead gage 20, make two pulleys 25 stop overhead gage 20, avoid overhead gage 20 to descend, overhead gage 20 is blockked and can be blockked jamming rod 17, makes jamming rod 17 not descend.
In the invention, the four cross rods 22 are respectively sleeved with the second springs 23, one ends of the four second springs 23 are respectively and fixedly connected to one sides of the two fixing pieces 24, the other ends of the four second springs 23 are respectively and fixedly connected to the opposite inner walls of the two vertical plates 21, the second springs 23 have elasticity, the two fixing pieces 24 can drive the two pulleys 25 to move in opposite directions through the elasticity of the second springs 23, the upper baffle 20 can be blocked after entering the upper ends of the two pulleys 25 through the opposite movement of the two pulleys 25, the other ends of the four cross rods 22 are respectively and fixedly provided with the stoppers 26, the four stoppers 26 respectively abut against the other side walls of the two vertical plates 21, and the stoppers 26 can block the other ends of the cross rods 22 to prevent the cross rods 22 from falling off from the vertical plates 21.
In the invention, a clamping rod 17 penetrates through a fixed block 16, the clamping rod 17 can be supported by the fixed block 16, the clamping rod 17 can ascend and descend on the fixed block 16, when the clamping rod 17 descends, the fixed block 16 can be stabilized, and the purpose of positioning the movable seat 11 can be realized, a lower baffle 18 is fixedly sleeved at the lower end of the clamping rod 17, a first spring 19 is fixed at the upper end of the lower baffle 18, the first spring 19 is sleeved on the clamping rod 17, the upper end of the first spring 19 is fixedly connected at the lower end of the fixed block 16, the first spring 19 has elasticity, the lower baffle 18 can be driven by the first spring 19 to move downwards, the lower baffle 18 can drive the clamping rod 17 to move downwards, a clamping groove 27 is formed in one side of the upper end of the bearing box 1, the clamping rod 17 is correspondingly arranged above the clamping groove 27, a plurality of circular grooves are formed in the clamping groove 27, the clamping rod 17 can enter one of the circular grooves 27 by descending and moving, when the lower end of the clamping rod 17 enters the clamping groove 27, the clamping rod 17 and the fixed block 16 can be positioned, the fixed block 16 is positioned to enable the movable seat 11 to be stable, the movable seat 11 is stable to enable the machine body 13 to be stable, and then the machine body 13 can be more stable in the measuring process.
In the invention, an upper baffle 20 is fixed at the upper end of a clamping rod 17, the upper baffle 20 can block the upper end of the clamping rod 17 to prevent the clamping rod 17 from falling off from the upper baffle 20, a support column 31 is detachably connected to the middle part of the lower end of a carrying box 1, the carrying box 1 can be supported through the support column 31 to enable the carrying box 1 to be more stable, upper support rods 37 are rotatably connected to both sides of the lower end of the carrying box 1, clamping pieces 38 are rotatably connected to the lower ends of the two upper support rods 37, the two clamping pieces 38 respectively abut against both sides of the support column 31, after the carrying box 1 is installed at the upper end of the support column 31, the two clamping pieces 38 at the lower ends of the two upper support rods 37 can be connected to the support column 31, the carrying box 1 can be supported through the two upper support rods 37, so that the gravity borne by the carrying box 1 is converted onto the support columns 31, thereby avoiding the influence of different gravity points on the stability of the carrying box 1 caused by the movement of a machine body 13 on the carrying box 1, the bearing box 1 is safer and more stable.
In the invention, two bolts 39 are commonly arranged on the two clamping pieces 38 in a penetrating manner, nuts 40 are respectively sleeved on the two bolts 39 in a threaded manner, the two nuts 40 are respectively abutted against one side of one of the clamping pieces 38, when the two clamping pieces 38 are connected to the supporting column 31, the two clamping pieces 38 can be connected by screwing the two bolts 39 and the two nuts 40, two second retaining rings 41 are fixedly sleeved on the supporting column 31 at equal intervals, the two clamping pieces 38 are commonly arranged between the two second retaining rings 41, the two clamping pieces 38 can be retained by the two second retaining rings 41, the two clamping pieces 38 can be effectively prevented from sliding on the supporting column 31, and the two upper supporting rods 37 can more stably support the carrying box 1.
In the invention, a first retainer ring 36 is fixedly sleeved on a support column 31, the lower end of the first retainer ring 36 is abutted with a sliding ring 32, the sliding ring 32 is slidably sleeved on the support column 31, the sliding ring 32 can slide on the support column 31, the upper part of the sliding ring 32 can be blocked by the first retainer ring 36, the ascending position of the sliding ring 32 can be only arranged at the lower end of the first retainer ring 36, three lower support rods 33 are rotatably connected with one circle of the sliding ring 32 at equal intervals, the three lower support rods 33 can be driven to ascend and descend by the ascending and descending of the sliding ring 32, three connecting rods 34 are rotatably connected with one circle of the lower end of the support column 31 at equal intervals, one ends of the three connecting rods 34 are respectively rotatably connected with the three lower support rods 33, the three lower support rods 33 can be connected with the support column 31 by the three connecting rods 34, when the sliding ring 32 ascends to the lower end of the first retainer ring 36, the three lower support rods 33 can be opened by the cooperation of the three connecting rods 34, opening through three lower support bar 33 can support column 31, makes support column 31 more stable, can make three lower support bar 33 fold through the decline of sliding ring 32 simultaneously, and the receipts of the support column 31 of being convenient for have a screw 35 cup jointed to the screw thread on the sliding ring 32, can make sliding ring 32 fix a position on support column 31 through screw 35, make the position of sliding ring 32 on support column 31 stable.
In the invention, the graduated scale 28 is arranged on one side of the upper end of the bearing box 1, the graduated scale 28 and the clamping groove 27 are correspondingly arranged, and the position of the clamping rod 17 in the clamping groove 27 can be measured through the graduated scale 28, so that the moving and adjusting position of the machine body 13 is more accurate, and the measuring accuracy of the machine body 13 is effectively improved.
Compared with the embodiment 1, the embodiment can accurately measure the position of the machine body 13 to be moved, and the accuracy of measurement of the machine body 13 is effectively improved.
In the present invention, when used: when the machine body 13 needs to be moved to an adjusting position, the clamping rod 17 is lifted, the upper baffle 20 is moved to the upper ends of the two pulleys 25, the two pulleys 25 limit the upper baffle 20 to descend, the lower end of the clamping rod 17 is moved out of the clamping groove 27, the moving seat 11 drives the machine body 13 to move to the position needing to be adjusted, the upper baffle 20 is pressed, the two pulleys 25 do not limit the upper baffle 20, the clamping rod 17 descends to enter the clamping groove 27, the moving seat 11 can be fixed, when the measuring direction of the machine body 13 needs to be adjusted, the servo motor 3 is controlled to operate through a matched control device, the servo motor 3 drives the driving rod 4 to rotate, the driving rod 4 drives the two strip blocks 5 to move, so that the first bevel gear 6 can be driven to rotate, the first bevel gear 6 pushes the transmission rod 8 to rotate, the second bevel gear 8 drives the transmission rod 9 to rotate, the transmission rod 9 drives the machine base 12 to rotate, the base 12 drives the machine body 13 to rotate, so that the purpose of adjusting the measuring direction of the machine body 13 can be achieved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The utility model provides a mapping appearance positioner for mapping engineering, is including bearing box (1), its characterized in that: one side of the bearing box (1) is provided with a rotating mechanism, the rotating mechanism is provided with a driving rod (4), the driving rod (4) is rotatably connected in the bearing box (1), a first bevel gear (6) is sleeved on the driving rod (4) in a sliding manner, long blocks (5) are fixed on two sides of the driving rod (4), the two long blocks (5) are arranged on the first bevel gear (6) in a penetrating manner, one side of the upper end of the first bevel gear (6) is engaged with a second bevel gear (8), the upper end of the second bevel gear (8) is rotatably connected with an L-shaped bearing frame (7), the first bevel gear (6) is rotatably connected on the inner side of the L-shaped bearing frame (7), the middle part of the L-shaped bearing frame (7) is provided with a round opening, the driving rod (4) and the two long blocks (5) are arranged in the round opening, the middle part of the upper end of the bearing box (1) is provided with a long opening (10), slide in rectangular mouth (10) and cup jointed transfer line (9), the lower extreme of transfer line (9) rotates and cup joints the upper end middle part that bears frame (7) at the L type, the lower extreme fixed connection of transfer line (9) is at the upper end middle part of second bevel gear (8), the upper end of transfer line (9) is rotated and has been cup jointed and is removed seat (11), the upper end of removing seat (11) is rotated and is connected with frame (12), the upper end fixed connection of transfer line (9) is at the lower extreme middle part of frame (12), upper end installation organism (13) of frame (12), one side of removing seat (11) is equipped with positioning mechanism, the last fixed block (16) that is equipped with of positioning mechanism, fixed block (16) fixed connection is in the one side of removing seat (11), it is provided with kelly (17) to run through on fixed block (16), the lower extreme fixed cup joint of kelly (17) has down baffle (18), the upper end of the lower baffle (18) is fixed with a first spring (19), the first spring (19) is sleeved on a clamping rod (17), the upper end of the first spring (19) is fixedly connected to the lower end of a fixed block (16), a clamping groove (27) is formed in one side of the upper end of the bearing box (1), the clamping rod (17) is correspondingly arranged above the clamping groove (27), an upper baffle (20) is fixed to the upper end of the clamping rod (17), a supporting column (31) is detachably connected to the middle of the lower end of the bearing box (1), upper supporting rods (37) are rotatably connected to two sides of the lower end of the bearing box (1), clamping pieces (38) are rotatably connected to the lower ends of the two upper supporting rods (37), the two clamping pieces (38) are respectively abutted to two sides of the supporting column (31), two bolts (39) are jointly penetrated through the two clamping pieces (38), and nuts (40) are screwed on the two bolts (39), both nuts (40) abut against one side of one of the clamping pieces (38).
2. The surveying instrument positioning device for surveying and mapping engineering according to claim 1, characterized in that: slewing mechanism includes mount (2) of fixed connection in bearing box (1) one side, install servo motor (3) in mount (2), the output shaft end of servo motor (3) runs through one side and the one end of fixed connection in actuating lever (4) that bear box (1).
3. The surveying instrument positioning device for surveying and mapping engineering according to claim 1, characterized in that: the positioning mechanism comprises two vertical plates (21) fixedly connected to one side of a movable seat (11), the two vertical plates (21) are respectively positioned at two sides of a clamping rod (17), two transverse rods (22) are respectively arranged on the two vertical plates (21) in a penetrating manner, fixing parts (24) are jointly fixed at one ends of the two transverse rods (22) positioned on the same vertical plate (21), pulleys (25) are respectively rotatably sleeved on the two fixing parts (24), the two pulleys (25) are respectively abutted against two sides of the lower end of an upper baffle plate (20), second springs (23) are respectively sleeved on the four transverse rods (22), one ends of the four second springs (23) are respectively and fixedly connected to one side of the two fixing parts (24), the other ends of the four second springs (23) are respectively and fixedly connected to the opposite inner walls of the two vertical plates (21), and stop blocks (26) are respectively fixed at the other ends of the four transverse rods (22), the four stoppers (26) respectively abut against the other side walls of the two vertical plates (21).
4. The surveying instrument positioning device for surveying and mapping engineering according to claim 1, characterized in that: fixed cover has been connected first retaining ring (36) on support column (31), the lower extreme of first retaining ring (36) is contradicted and is had sliding collar (32), sliding collar (32) slide and cup joint on support column (31), the equidistant rotation of a week of sliding collar (32) is connected with three lower support rod (33), the equidistant rotation of lower extreme a week of support column (31) is connected with three connecting rod (34), and the one end of three connecting rod (34) rotates respectively and connects on three lower support rod (33), screw (35) have been cup jointed to the last screw thread of sliding collar (32).
5. The surveying instrument positioning device for surveying and mapping engineering according to claim 1, characterized in that: two second retaining rings (41) are fixedly sleeved on the supporting column (31) at equal intervals, and the two clamping pieces (38) are arranged between the two second retaining rings (41) together.
6. The surveying instrument positioning device for surveying and mapping engineering according to claim 1, characterized in that: the two sides of the lower end of the movable seat (11) are both fixed with baffle plates (14), two sliding rollers (15) are connected between the two baffle plates (14) in a rotating mode, and the two sliding rollers (15) are abutted to the upper end of the bearing box (1).
7. The surveying instrument positioning device for surveying and mapping engineering according to claim 1, characterized in that: both sides of the upper end in the bearing box (1) are fixed with slide ways (29), two slide blocks (30) are sleeved in the two slide ways (29) in a sliding mode, and the four slide blocks (30) are fixedly connected to four corners of the upper end of the L-shaped bearing frame (7) respectively.
8. The surveying instrument positioning device for surveying and mapping engineering according to claim 1, characterized in that: one side of the upper end of the bearing box (1) is provided with a graduated scale (28), and the graduated scale (28) and the clamping groove (27) are correspondingly arranged.
CN202111064914.0A 2021-09-11 2021-09-11 Mapping instrument positioning device for mapping engineering Active CN113803588B (en)

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CN212030509U (en) * 2020-06-30 2020-11-27 河南工程学院 Measuring device for surveying and mapping engineering
CN112664775A (en) * 2020-12-21 2021-04-16 陈文锋 Horizontal marking device for interior decoration
CN213954834U (en) * 2020-12-24 2021-08-13 辽宁生态工程职业学院 Tripod for mapping engineering convenient to dismantle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983899A1 (en) * 2006-01-26 2008-10-29 Nanyang Technological University Apparatus and method for motorised placement of needle
CN206876168U (en) * 2017-04-12 2018-01-12 李付定 A kind of surveying instrument support with all-around mobile function
CN207714790U (en) * 2018-01-16 2018-08-10 周勇 Construction safety device
CN108458213A (en) * 2018-03-23 2018-08-28 郑州金恒电子技术有限公司 A kind of computer screen height adjustment mechanism
CN208721085U (en) * 2018-09-28 2019-04-09 九江学院 A kind of construction engineering cost field surveys device
CN211475359U (en) * 2019-07-04 2020-09-11 广东食品药品职业学院 Electronic commerce is with multi-functional two-dimensional code scanner subassembly
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CN112664775A (en) * 2020-12-21 2021-04-16 陈文锋 Horizontal marking device for interior decoration
CN213954834U (en) * 2020-12-24 2021-08-13 辽宁生态工程职业学院 Tripod for mapping engineering convenient to dismantle

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