CN113958836B - Positioning device for engineering mapping - Google Patents

Positioning device for engineering mapping Download PDF

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Publication number
CN113958836B
CN113958836B CN202111218505.1A CN202111218505A CN113958836B CN 113958836 B CN113958836 B CN 113958836B CN 202111218505 A CN202111218505 A CN 202111218505A CN 113958836 B CN113958836 B CN 113958836B
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China
Prior art keywords
base
sliding
sleeve
stud
locking
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CN202111218505.1A
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Chinese (zh)
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CN113958836A (en
Inventor
叶媚
陈斌
甘朝机
宋辉
屠宗灵
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Ningbo Shuhui Information Technology Co ltd
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Ningbo Shuhui Information Technology Co ltd
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Priority to CN202111218505.1A priority Critical patent/CN113958836B/en
Publication of CN113958836A publication Critical patent/CN113958836A/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
    • F16M11/20—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
    • F16M11/26—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 telescoping, with or without folding
    • F16M11/32—Undercarriages for supports with three or more telescoping legs
    • F16M11/34—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
    • F16M11/26—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 telescoping, with or without folding
    • F16M11/32—Undercarriages for supports with three or more telescoping legs
    • F16M11/36—Members preventing slipping of the feet
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Sewage (AREA)

Abstract

The application relates to a positioning device for engineering surveying and mapping, and relates to the field of surveying and mapping instrument auxiliary tools, comprising a base, a positioning device and a positioning device, wherein the base is used for placing a surveying and mapping instrument; the support rods are at least three in number and are arranged at intervals along the circumferential direction of the base, and are hinged with the base; the support tube is sleeved on the support rod and is connected with the support rod in a sliding manner, and one end of the support tube, which is far away from the base, is fixed on a base surface; the studs are arranged on the lower side of the base and positioned between at least three support rods; the driving sleeve is sleeved on the stud and is in threaded connection with the stud; and one end of the transmission assembly is connected to the driving sleeve in a sliding manner along the circumferential direction of the driving sleeve, and the other end of the transmission assembly is hinged with the supporting tubes so as to drive at least three supporting tubes to descend relative to the base. The synchronous lifting adjustment of the three supporting pipes relative to the base is realized, and the use efficiency of the positioning device for engineering surveying and mapping is improved.

Description

Positioning device for engineering mapping
Technical Field
The application relates to the field of surveying instrument auxiliary tools, in particular to a positioning device for engineering surveying and mapping.
Background
Mapping refers to measuring, collecting and mapping the shape, size, spatial position, attribute and the like of natural geographic elements or surface artificial facilities. Tripod positioning of the mapping instrument is often required in mapping.
In the related art, as in the chinese patent with application number 202110011209.8, a mapping instrument positioning device for engineering mapping is disclosed, which comprises a top plate and a mounting table arranged above the top plate, wherein the top end of the top plate is fixedly connected with a connecting rod, the top end of the connecting rod is fixedly connected with the mounting table, a plurality of supporting seats are circumferentially arranged on the outer side of the top plate at equal intervals, a connecting shaft penetrates through the inside of the supporting seats, and the connecting shaft is fixedly connected with the supporting seats; the support plate is rotatably sleeved outside the connecting shaft and between the support seats, a placing groove is formed in the support plate, a moving rod is arranged in the placing groove, and an adjusting piece which drives the moving rod to adjust relative to the internal position of the placing groove when the moving rod rotates relative to the support seats is arranged at the top of the support plate; one end of the movable rod, which is positioned at the outer side of the bottom of the supporting plate, is connected with a ground connecting piece which can be used on both the soil ground and the cement ground; the supporting plates are connected with each other, and positioning pieces for adjusting the positions of the supporting plates are connected with each other.
In view of the above-mentioned related art, the inventor considers that when the mapping instrument positioning device for engineering mapping is used, the lengths of the plurality of moving rods extending out of the supporting plate need to be adjusted one by one, which results in reduced use efficiency of the positioning device, and there is room for improvement.
Disclosure of Invention
In order to realize synchronous adjustment of a plurality of supporting heights of the mapping instrument positioning device, the application provides a positioning device for engineering mapping.
The application provides a positioner for engineering survey and drawing adopts following technical scheme:
a positioning device for engineering survey and drawing, comprising:
the base is used for placing the surveying instrument;
the support rods are at least three in number and are arranged at intervals along the circumferential direction of the base, and are hinged with the base;
the support tube is sleeved on the support rod and is connected with the support rod in a sliding manner, and one end of the support tube, which is far away from the base, is fixed on a base surface;
the studs are arranged on the lower side of the base and positioned between at least three support rods;
the driving sleeve is sleeved on the stud and is in threaded connection with the stud; and
and one end of the transmission assembly is connected to the driving sleeve in a sliding manner along the circumferential direction of the driving sleeve, and the other end of the transmission assembly is hinged with the supporting tubes so as to drive at least three supporting tubes to descend relative to the base.
Through adopting above-mentioned technical scheme, after the lower extreme of three stay tube is opened and is fixed in ground, rotates the drive sleeve, and the drive sleeve goes up and down along the axial of double-screw bolt, and the drive sleeve is driven three stay tubes through three drive assembly and is gone up and down together, has realized the synchronous lift adjustment of the relative base of three stay tubes, has improved engineering survey and drawing and has used positioner's availability factor.
Optionally, the transmission assembly includes:
one end of the transmission rod is connected to the driving sleeve in a sliding manner along the circumferential direction of the driving sleeve; and
one end of the transmission sleeve is hinged to the supporting tube, and the other end of the transmission sleeve is sleeved on the transmission rod and is connected with the transmission rod in a sliding manner;
the transmission rod includes:
the sliding part is arranged in the transmission sleeve in a penetrating way and is connected with the transmission sleeve in a sliding way; and
the sliding limiting part is fixed at one end of the sliding part, which is close to the driving sleeve, a sliding groove for the sliding limiting part to be embedded and arranged on the outer side wall of the driving sleeve, and the sliding groove is provided with a notch for the sliding part to penetrate through and slide.
Through adopting above-mentioned technical scheme for when the drive cover rotates, can drive three stay tubes relative base synchronous lift through the relative slip of slip limit part and drive cover and the slip of transfer line and drive cover, realized the synchronous lift adjustment of three stay tubes relative base.
Optionally, one side of the driving sleeve, which is close to the base, is provided with a sliding groove, the sliding groove is mutually communicated with the sliding groove, and the sliding part and the sliding limiting part can slide into the sliding groove through the sliding groove.
Through adopting above-mentioned technical scheme, conveniently will slide spacing portion and slide through the roll-in groove and install to the inslot that slides.
Optionally, still including locating the stay tube and keeping away from the adjusting part of base one end, adjusting part includes:
the anchor rod penetrates through one end, far away from the base, of the support tube and is connected with the support tube in a sliding manner; and
the adjusting sleeve is sleeved on the anchor rod and is in threaded connection with the anchor rod, and the adjusting sleeve is connected to one end, far away from the base, of the support tube in a circumferential rotation mode along the support tube.
Through adopting above-mentioned technical scheme, rotate the adjusting sleeve and can order about the stock to insert or roll off the stay tube, and then make the supporting height of every landing leg of base can be adjusted alone, it is more convenient to use.
Optionally, be equipped with two at least extension pieces on the terminal surface that the adjustment sleeve is close to the stay tube, two at least extension pieces set up along the circumference interval of adjustment sleeve, one side that the extension piece is close to the stay tube is fixed with the stopper, be equipped with on the stay tube is close to the lateral wall of adjustment sleeve and supply the stopper to inlay to establish pivoted rotation groove.
Through adopting above-mentioned technical scheme, the stopper inlays to be located the rotation groove and rotates in the rotation inslot to with the adjusting collar swivelling joint on the stay tube.
Optionally, a guiding surface for guiding the extending piece to deform in the axial direction far away from the adjusting sleeve is arranged on the limiting block.
Through adopting above-mentioned technical scheme, the guide surface guide extension piece is to keeping away from the axis direction deformation of adjusting collar to conveniently inlay the stopper and establish and install in the rotation inslot, improved the packaging efficiency of adjusting collar and stay tube.
Optionally, the downside of base is fixed with the guide post, be equipped with the hole that slides that supplies the guide post to insert to slide on the double-screw bolt, the hole that slides sets up towards the base, be equipped with the locking subassembly that locks the double-screw bolt on the guide post on the double-screw bolt.
Through adopting above-mentioned technical scheme, the height of base can be roughly adjusted through the slip of guide post and double-screw bolt to lock through locking component, improved engineering survey and drawing and used positioner's availability factor.
Optionally, the locking assembly includes:
the guide column is provided with a sliding groove for the sliding of the locking block, the sliding groove is arranged along the axial direction of the guide column, the outer side wall of the guide column is provided with a plurality of locking grooves and communicating grooves for communicating adjacent locking grooves, the locking grooves are mutually communicated with the sliding groove, and a plurality of locking grooves are arranged along the axial direction of the guide column;
the screw rod sequentially penetrates through the side wall, close to the base, of the stud, the communication groove and the locking block, the screw rod is in threaded connection with the locking block, and a penetrating hole for the screw rod to penetrate is formed in the side wall, close to the base, of the stud; and
the driving block is fixed at one end of the screw rod far away from the locking block and is abutted against the outer side wall of the stud.
By adopting the technical scheme, the driving block is rotated, the screw rod and the locking block rotate relatively to drive the locking block to slide from the chute to the locking groove so as to lock the stud on the guide post, or slide from the locking groove into the chute so that the stud can slide relatively to the guide post.
Optionally, a holding groove is formed on the outer side wall of the driving block.
Through adopting above-mentioned technical scheme, the setting of gripping groove has increased the area of contact between hand and the drive block when gripping the drive block, and then has increased the frictional force between hand and the drive block when twisting the drive block, and the relative slip takes place for difficult and the drive block of hand when making to twist the drive block, has improved the screwing efficiency of drive block.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after the lower ends of the three support pipes are opened and fixed on the ground, the driving sleeve is rotated, the driving sleeve is lifted along the axial direction of the stud, and the driving sleeve drives the three support pipes to lift together through the three transmission components, so that synchronous lifting adjustment of the three support pipes relative to the base is realized, and the use efficiency of the positioning device for engineering surveying and mapping is improved;
2. the rotation adjusting sleeve can drive the anchor rod to be inserted into or slide out of the supporting tube, so that the supporting height of each supporting leg of the base can be independently adjusted, and the use is more convenient.
Drawings
Fig. 1 is a schematic structural diagram of a positioning device for engineering mapping according to an embodiment of the present application.
Fig. 2 is a schematic view of a partial explosion of a support tube and a driving sleeve, a driving rod, a stud, and a driving sleeve according to an embodiment of the present application.
Fig. 3 is a schematic view of a partial explosion of a guide post and locking block, screw, stud according to an embodiment of the present application.
Fig. 4 is a schematic view of a partial explosion of an anchor rod, an adjusting sleeve and a support tube according to an embodiment of the present application.
Reference numerals illustrate: 10. a base; 11. a guide post; 111. a chute; 112. a locking groove; 113. a communication groove; 20. a support rod; 30. a support tube; 31. a rotating groove; 40. a stud; 41. a slip hole; 42. penetrating holes; 50. a drive sleeve; 51. a slip groove; 511. a notch; 52. sliding into the groove; 60. a transmission assembly; 61. a transmission rod; 62. a transmission sleeve; 611. a sliding part; 612. a slip limit part; 70. an adjustment assembly; 71. a bolt; 72. an adjusting sleeve; 721. an extension piece; 722. a limiting block; 7221. a guide surface; 80. a locking assembly; 81. a locking block; 811. a threaded hole; 82. a screw; 83. a driving block; 831. a holding groove.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a positioner for engineering survey and drawing. Referring to fig. 1, the positioning device for engineering survey includes a base 10, a support rod 20, a support tube 30, a stud 40, a driving sleeve 50, and a transmission assembly 60. The base 10 is used for placing the surveying instrument, in this embodiment, the base 10 is described by taking a disc shape as an example, the supporting rods 20 are hinged to the lower side of the base 10, the number of the supporting rods 20 is at least three, at least three supporting rods 20 are arranged at intervals along the circumference of the base 10, at least three supporting rods 20 can be uniformly arranged along the circumference of the base 10, at least three supporting rods 20 can also be uniformly arranged along the circumference of the base 10, in this embodiment, the number of the supporting rods 20 is described by taking three as an example, and three supporting rods 20 are uniformly arranged along the circumference of the base 10. The support pipes 30 are in one-to-one correspondence with the support rods 20, the support pipes 30 are sleeved on the support rods 20 and are connected with the support rods 20 in a sliding mode, and the support rods 20 are arranged in a cylindrical mode. The stud 40, the driving sleeve 50 and the transmission assembly 60 cooperate to drive the three support tubes 30 to synchronously descend relative to the base 10.
Referring to fig. 1 and 2, in one embodiment, the stud 40 is fixed to the underside of the base 10, the axis of the stud 40 coincides with the axis of the base 10, and the driving sleeve 50 is sleeved on the stud 40 and is in threaded connection with the stud 40. One end of the transmission assembly 60 is slidably connected to the driving sleeve 50 along the circumferential direction of the driving sleeve 50, and the other end of the transmission assembly 60 is hinged to the supporting tubes 30 so as to cooperate with the driving sleeve 50 to drive the three supporting tubes 30 to synchronously descend relative to the base 10.
Specifically, the transmission assembly 60 includes a transmission rod 61 and a transmission sleeve 62, and one end of the transmission sleeve 62 is hinged to the outer sidewall of the support tube 30. The transmission rod 61 includes a sliding portion 611 and a sliding limiting portion 612, wherein one end of the sliding portion 611, which is close to the support tube 30, is inserted into the transmission sleeve 62 and is slidably connected with the transmission sleeve 62, and in this embodiment, the sliding portion 611 is described by taking a cylindrical shape as an example. The sliding limiting portion 612 is fixed to one end of the sliding portion 611 near the driving sleeve 50, and the sliding limiting portion 612 may be rectangular plate, arc-shaped plate, or disc-shaped, and in this embodiment, the sliding limiting portion 612 is described by taking a disc-shaped example. The outer side wall of the driving sleeve 50 is provided with a sliding groove 51, the sliding groove 51 is annularly arranged and concentric with the driving sleeve 50, the sliding groove 51 is provided with a notch 511, the notch 511 of the sliding groove 51 is used for the sliding part 611 to penetrate through and rotate around the axis of the driving sleeve 50 to slide, and the sliding groove 51 is used for the sliding limiting part 612 to be embedded and rotate around the axis of the driving sleeve 50 to slide.
After the lower ends of the three support pipes 30 are opened and fixed on the ground, the driving sleeve 50 is rotated, the driving sleeve 50 is lifted while rotating around the stud 40, at the moment, the sliding part 611 and the sliding limiting part 612 lift together with the driving sleeve 50, and the three support pipes 30 are driven to lift together with the driving sleeve 50 by the relative sliding of the sliding part 611 and the transmission sleeve 62, so that synchronous lifting adjustment of the three support pipes 30 relative to the base 10 is realized.
In order to facilitate loading the sliding limiting portion 612 into the sliding groove 51, the upper end surface of the driving sleeve 50 is provided with a sliding groove 52, the sliding groove 52 is vertically arranged and is mutually communicated with the sliding groove 51, and the end portion of the sliding portion 611 connected with the sliding limiting portion 612 and the sliding limiting portion 612 can slide into the sliding groove 51 through the sliding groove 52.
Referring to fig. 1 and 3, in another embodiment, the stud 40 is slidingly connected to the lower side of the base 10, specifically, a guide post 11 is fixed to the lower side of the base 10, the guide post 11 is concentrically arranged with the base 10, a sliding hole 41 is formed on the upper side of the stud 40, the sliding hole 41 is arranged towards the base 10, the guide post 11 is inserted into the sliding hole 41 and slidingly connected with the stud 40, and the outer diameter of the guide post 11 is equal to the inner diameter of the sliding hole 41 so as to slidingly connect the stud 40 to the guide post 11. The stud 40 is provided with a locking assembly 80, and the locking assembly 80 is used for locking the stud 40 on the guide post 11.
Specifically, the locking assembly 80 includes a locking block 81, a screw 82, and a driving block 83. The locking block 81 is rectangular block-shaped, the guide post 11 is provided with a sliding groove 111, the sliding groove 111 is arranged along the axial direction of the guide post 11 and penetrates through two ends of the guide post 11, the sliding groove 111 is used for the locking block 81 to be embedded and slide, and the locking block 81 can not rotate in the sliding groove 111. The screw 82 extends to the bottom of the chute 111, the screw 82 sequentially penetrates through the outer side wall of the stud 40, the inner side wall of the sliding hole 41 and the locking block 81, the stud 40 is provided with a penetrating hole 42 communicated with the sliding hole 41, the penetrating hole 42 is used for penetrating the screw 82, the screw 82 is rotationally connected with the stud 40, and the locking block 81 is provided with a threaded hole 811 in threaded connection with the screw 82. The guide post 11 is provided with a plurality of locking grooves 112 and communicating grooves 113, the locking grooves 112 are arranged along the axial direction of the guide post 11, the plurality of locking grooves 112 are arranged at intervals, the locking grooves 112 are communicated with the sliding grooves 111, the locking grooves 112 are used for inserting the locking blocks 81 so as to lock the stud 40 on the guide post 11, the stud 40 does not slide relative to the guide post 11, the communicating grooves 113 are communicated with the sliding grooves 111, and the communicating grooves 113 are used for connecting two adjacent locking grooves 112. The driving block 83 is fixed to an end of the screw 82 away from the locking block 81, the driving block 83 abuts against an outer sidewall of the stud 40, and when the driving block 83 is rotated, the screw 82 and the locking block 81 rotate relatively to drive the locking block 81 to slide from the sliding slot 111 to the locking slot 112 or slide from the locking slot 112 to the sliding slot 111.
In this embodiment, the driving block 83 is described by taking a disc shape as an example, in order to facilitate rotating the driving block 83, a holding groove 831 is formed on the outer peripheral wall of the driving block 83, so as to increase the contact area between the hand and the driving block 83 when rotating the driving block 83, and further increase the friction resistance between the hand and the driving block 83, so as to facilitate rotating the driving block 83.
Referring to fig. 1 and 4, the positioning device for engineering survey further includes an adjusting assembly 70, and the adjusting assembly 70 is used for individually adjusting the support length of each support tube 30. The adjusting assembly 70 comprises an anchor rod 71 and an adjusting sleeve 72, the lower end of the anchor rod 71 is in a conical shape with the diameter gradually reduced, the adjusting sleeve 72 is sleeved on the anchor rod 71 and is in threaded connection with the anchor rod 71, and the adjusting sleeve 72 is rotatably connected to the lower end of the support tube 30 so as to drive the anchor rod 71 to be inserted into or extend out of the support tube 30.
Specifically, at least two extending pieces 721 are disposed on the end surface of the adjusting sleeve 72 near the supporting tube 30, at least two extending pieces 721 are disposed at intervals along the circumferential direction of the adjusting sleeve 72, in this embodiment, four extending pieces 721 are described as four extending pieces 721 are uniformly disposed along the circumferential direction of the adjusting sleeve 72, one end of the extending piece 721 far away from the adjusting sleeve 72 is fixed with a limiting block 722, the limiting block 722 is disposed towards the direction near the axis of the supporting tube 30, a rotating groove 31 is disposed on the outer side wall of the supporting tube 30 near the adjusting sleeve 72, and the rotating groove 31 is used for the limiting block 722 to be embedded and rotated so as to rotationally connect the adjusting sleeve 72 on the supporting tube 30.
The edge of the limiting block 722, which is close to the support tube 30 and far from the extending piece 721, is provided with a guide surface 7221, and the guide surface 7221 is obliquely arranged from the adjusting sleeve 72 to the support tube 30 in a direction far from the axis of the support tube 30 so as to guide the limiting block 722 and the extending piece 721 to deform in a direction far from the axis of the support tube 30, and the limiting block 722 is installed in the rotating groove 31.
The implementation principle of the positioning device for engineering surveying and mapping in the embodiment of the application is as follows: when the three support rods 20 are opened to a proper angle, the lower ends of the anchor rods 71 are inserted and fixed on the ground, the height of the base 10 is coarse-adjusted, namely, initially, the locking block 81 is inserted into the locking groove 112, the screw rod 82 is driven to rotate by the rotary driving block 83, the locking block 81 is driven to slide into the sliding groove 111 from the locking groove 112 through threaded connection of the screw rod 82 and the locking block 81, the stud 40 and the driving sleeve 50 are slid downwards, the driving sleeve 50 drives the three support tubes 30 to synchronously descend relative to the base 10 through the three transmission assemblies 60 so as to lift the base 10 to a proper height, the screw rod 82 is driven to rotate by the rotary driving block 83, the locking block 81 is driven to slide into the locking groove 112 from the sliding groove 111 through threaded connection of the screw rod 82 and the locking block 81, and the stud 40 is locked on the guide post 11. After fine tuning, the driving sleeve 50 is rotated, the driving sleeve 50 is lifted and lowered relative to the stud 40, and the three support tubes 30 are driven to synchronously lift and lower relative to the base 10 through the three transmission assemblies 60. Finally, the adjusting sleeve 72 is rotated, the length of the anchor rod 71 extending out of the supporting tube 30 is adjusted through the adjusting sleeve 72, and the three supporting heights of the base 10 are independently adjusted.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (6)

1. Positioning device for engineering survey and drawing, characterized by comprising:
a base (10) for placing a surveying instrument;
the support rods (20) are at least three in number and are arranged at intervals along the circumferential direction of the base (10), and the support rods (20) are hinged with the base (10);
the support tube (30) is sleeved on the support rod (20) and is connected with the support rod (20) in a sliding manner, and one end, far away from the base (10), of the support tube (30) is fixed on a base surface;
the studs (40) are arranged on the lower side of the base (10) and are positioned among at least three support rods (20);
the driving sleeve (50) is sleeved on the stud (40) and is in threaded connection with the stud (40); and
one end of the transmission assembly (60) is connected to the driving sleeve (50) in a sliding manner along the circumferential direction of the driving sleeve (50), and the other end of the transmission assembly is hinged with the supporting tubes (30) so as to drive at least three supporting tubes (30) to descend relative to the base (10);
the transmission assembly (60) includes:
one end of the transmission rod (61) is connected to the driving sleeve (50) in a sliding manner along the circumferential direction of the driving sleeve (50); and
one end of the transmission sleeve (62) is hinged to the supporting tube (30), and the other end of the transmission sleeve is sleeved on the transmission rod (61) and is in sliding connection with the transmission rod (61);
the transmission rod (61) comprises:
the sliding part (611) is arranged in the transmission sleeve (62) in a penetrating way and is connected with the transmission sleeve (62) in a sliding way; and
the sliding limiting part (612) is fixed at one end of the sliding part (611) close to the driving sleeve (50), a sliding groove (51) for the sliding limiting part (612) to be embedded and arranged to slide is formed in the outer side wall of the driving sleeve (50), and the sliding groove (51) is provided with a notch (511) for the sliding part (611) to pass through and slide;
a sliding groove (52) is formed in one side, close to the base (10), of the driving sleeve (50), the sliding groove (52) is communicated with the sliding groove (51), and the sliding part (611) and the sliding limiting part (612) can slide into the sliding groove (51) through the sliding groove (52);
the guide post (11) is fixed on the lower side of the base (10), a sliding hole (41) for the guide post (11) to insert and slide is formed in the stud (40), the sliding hole (41) is arranged towards the base (10), and a locking assembly (80) for locking the stud (40) on the guide post (11) is arranged on the stud (40).
2. The positioning device for engineering surveying and mapping according to claim 1, further comprising an adjusting assembly (70) disposed at an end of the support tube (30) remote from the base (10), the adjusting assembly (70) comprising:
the anchor rod (71) penetrates through one end, far away from the base (10), of the support tube (30) and is connected with the support tube (30) in a sliding manner; and
the adjusting sleeve (72) is sleeved on the anchor rod (71) and is in threaded connection with the anchor rod (71), and the adjusting sleeve (72) is connected to one end, far away from the base (10), of the supporting tube (30) along the circumferential rotation of the supporting tube (30).
3. The positioning device for engineering survey and drawing according to claim 2, wherein: the adjusting sleeve (72) is provided with at least two extending sheets (721) on the end face close to the supporting tube (30), at least two extending sheets (721) are arranged at intervals along the circumferential direction of the adjusting sleeve (72), one side of each extending sheet (721) close to the supporting tube (30) is fixedly provided with a limiting block (722), and the outer side wall of the supporting tube (30) close to the adjusting sleeve (72) is provided with a rotating groove (31) for the limiting block (722) to be embedded and arranged.
4. A positioning device for engineering survey and drawing according to claim 3, wherein: the limiting block (722) is provided with a guide surface (7221) for guiding the extending piece (721) to deform in the axial direction far away from the adjusting sleeve (72).
5. The mapping positioning device of claim 1, wherein the locking assembly (80) comprises:
the guide column (11) is provided with a sliding chute (111) for the sliding of the locking block (81), the sliding chute (111) is arranged along the axial direction of the guide column (11), the outer side wall of the guide column (11) is provided with a plurality of locking grooves (112) and communicating grooves (113) for communicating adjacent locking grooves (112), the locking grooves (112) are mutually communicated with the sliding chute (111), and a plurality of locking grooves (112) are arranged along the axial direction of the guide column (11);
the screw rod (82) sequentially penetrates through the side wall, close to the base (10), of the stud (40), the communication groove (113) and the locking block (81), the screw rod (82) is in threaded connection with the locking block (81), and a penetrating hole (42) for the screw rod (82) to penetrate through is formed in the side wall, close to the base (10), of the stud (40); and
and a driving block (83) fixed to one end of the screw (82) away from the locking block (81) and abutting against the outer side wall of the stud (40).
6. The positioning device for engineering survey and drawing according to claim 5, wherein: the outer side wall of the driving block (83) is provided with a holding groove (831).
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CN114658998A (en) * 2022-03-07 2022-06-24 中船重工海鑫工程管理(北京)有限公司 Theodolite for engineering supervision
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CN104565725A (en) * 2015-01-13 2015-04-29 佛山市开信光电有限公司 Tripod with rapid and stepless lifting and locking functions
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CN111963866B (en) * 2020-08-21 2021-11-16 上海同宴土木工程咨询有限公司 Horizontal measuring device for building supervision
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