CN113958836A - Positioner is used in engineering survey and drawing - Google Patents

Positioner is used in engineering survey and drawing Download PDF

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Publication number
CN113958836A
CN113958836A CN202111218505.1A CN202111218505A CN113958836A CN 113958836 A CN113958836 A CN 113958836A CN 202111218505 A CN202111218505 A CN 202111218505A CN 113958836 A CN113958836 A CN 113958836A
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CN
China
Prior art keywords
base
sliding
sleeve
supporting
stud
Prior art date
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Granted
Application number
CN202111218505.1A
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Chinese (zh)
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CN113958836B (en
Inventor
叶媚
陈斌
甘朝机
宋辉
屠宗灵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
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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Publication of CN113958836B publication Critical patent/CN113958836B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/32Undercarriages for supports with three or more telescoping legs
    • F16M11/34Members limiting spreading of legs, e.g. "umbrella legs"
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/32Undercarriages for supports with three or more telescoping legs
    • F16M11/36Members preventing slipping of the feet
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30Assessment of water resources

Abstract

The application relates to a positioning device for engineering surveying and mapping, which relates to the field of auxiliary tools of surveying and mapping instruments, and comprises a base, a positioning device and a positioning device, wherein the base is used for placing a surveying and mapping instrument; the number of the support rods is at least three, the support rods are arranged at intervals along the circumferential direction of the base, and the support rods are hinged with the base; the supporting tube is sleeved on the supporting rod and is connected with the supporting rod in a sliding manner, and one end of the supporting tube, which is far away from the base, is fixed on the base surface; the stud is arranged on the lower side of the base and positioned among 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 component 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 component is hinged with the supporting tubes so as to drive the at least three supporting tubes to descend relative to the base. This application has realized the synchronous lift adjustment of the relative base of three stay tubes, has improved the effect of positioner's for the engineering survey and drawing availability factor.

Description

Positioner is used in engineering survey and drawing
Technical Field
The application relates to the field of surveying and mapping instrument auxiliary tools, in particular to a positioning device for engineering surveying and mapping.
Background
Mapping refers to measuring, collecting and drawing the shape, size, spatial position and attributes of natural geographic elements or surface artificial facilities. A tripod is often used to position the surveying instrument during surveying.
In the related art, as the chinese patent with application number 202110011209.8, a mapping apparatus positioning device for engineering surveying and mapping is disclosed, which includes a top plate and an installation table arranged above the top plate, wherein a connecting rod is fixedly connected to the top end of the top plate, and the top end of the connecting rod is fixedly connected to the installation table, a plurality of supporting seats are installed around the outer side of the top plate at equal intervals, a connecting shaft penetrates through the supporting seats, and the connecting shaft is fixedly connected to the supporting seats; a support plate is rotatably sleeved between the support seats and outside the connecting shaft, 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 the position of the moving rod relative to the inside of the placing groove is arranged at the top of the support plate while the support plate rotates relative to the support seats; one end of the moving 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 earth ground and cement ground; the supporting plates are connected with positioning pieces for adjusting the positions of the supporting plates.
In view of the above-mentioned related technologies, the inventor believes that when the surveying and mapping instrument positioning device for engineering surveying and mapping is used, the lengths of the plurality of movable rods extending out of the support plate need to be adjusted one by one, which results in reduced use efficiency of the positioning device and leaves room for improvement.
Disclosure of Invention
In order to realize the synchronous regulation of a plurality of supporting height of surveying instrument positioner, this application provides a positioner for engineering survey and drawing.
The application provides a positioner for engineering survey and drawing adopts following technical scheme:
a positioning device for engineering surveying, comprising:
the base is used for placing the surveying instrument;
the number of the support rods is at least three, the support rods are arranged at intervals along the circumferential direction of the base, and the support rods are hinged with the base;
the supporting tube is sleeved on the supporting rod and is connected with the supporting rod in a sliding manner, and one end of the supporting tube, which is far away from the base, is fixed on the base surface;
the stud is arranged on the lower side of the base and positioned among 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 component 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 component is hinged with the supporting tubes so as to drive the 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 was opened and was fixed in ground, rotated the driving sleeve, the driving sleeve goes up and down along the axial of double-screw bolt, and the driving sleeve orders about three stay tube through three drive assembly and goes up and down together, has realized the synchronous lift adjustment of the relative base of three stay tube, 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 mode;
the drive link 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 spacing portion that slides is fixed in the portion of sliding is close to the one end of driving sleeve, be equipped with on the lateral wall of driving sleeve and supply the spacing portion of sliding to inlay the groove of sliding of establishing the slip that slides, the groove of sliding has a notch that wears to establish the slip that supplies the portion of sliding.
Through adopting above-mentioned technical scheme for when the driving sleeve rotated, can order about the relative base synchronous lift of three stay tubes through the relative slip of spacing portion and driving sleeve that slides and the slip of transfer line and driving sleeve, realized the synchronous lift adjustment of the relative base of three stay tubes.
Optionally, one side of the driving sleeve, which is close to the base, is provided with a sliding groove, the sliding groove is 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, the convenience is slided the spacing portion that will slide through the income groove and is installed to the inslot that slides.
Optionally, the support tube further comprises an adjusting assembly disposed at an end of the support tube away from the base, the adjusting assembly includes:
the anchor rod penetrates through one end, far away from the base, of the supporting tube and is connected with the supporting tube in a sliding mode; 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 supporting tube in a circumferential rotating mode.
Through adopting above-mentioned technical scheme, rotate the adjusting collar and can order about the stock and insert or the roll-off stay tube, and then make the holding height of every landing leg of base can adjust alone, it is more convenient to use.
Optionally, the adjusting sleeve is provided with at least two extending pieces on the end surface close to the supporting tube, the extending pieces are arranged at intervals along the circumferential direction of the adjusting sleeve, a limiting block is fixed on one side of each extending piece close to the supporting tube, and a rotating groove for the limiting block to be embedded in is formed in the outer side wall of the supporting tube close to the adjusting sleeve.
Through adopting above-mentioned technical scheme, the stopper inlays and locates and rotate the groove and rotate in rotating the inslot to rotate the adjusting collar and connect on the stay tube.
Optionally, the limiting block is provided with a guide surface for guiding the extension piece to deform towards the axis direction away from the adjusting sleeve.
Through adopting above-mentioned technical scheme, the spigot surface guide extends the piece to keeping away from the axis direction deformation of adjusting collar to conveniently inlay the stopper and establish and install in rotating the 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 on the double-screw bolt and supply the guide post to insert the hole of sliding that slides, the hole of sliding sets up towards the base, be equipped with on the double-screw bolt and lock the double-screw bolt in the locking subassembly on the guide post.
By adopting the technical scheme, the height of the base can be coarsely adjusted by sliding the guide post and the stud, and the base can be locked by the locking assembly, so that the service efficiency of the positioning device for engineering surveying and mapping is improved.
Optionally, the locking assembly includes:
the guide post is provided with a sliding groove for the locking block to be embedded and slide, the sliding groove is arranged along the axial direction of the guide post, the outer side wall of the guide post 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 the locking grooves are arranged along the axial direction of the guide post;
the screw rod sequentially penetrates through the side wall, close to the base, of the stud, the communicating 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 through is formed in the side wall, close to the base, of the stud; and
and the driving block is fixed at one end of the screw rod, which is far away from the locking block, and is abutted against the outer side wall of the stud.
Through adopting above-mentioned technical scheme, rotate the drive block, the screw rod rotates with the locking piece relatively in order to order about the locking piece to slide to locking groove from the spout and lock the double-screw bolt on the guide post, or slide to the spout in from locking groove and make the double-screw bolt slide relatively 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 the groove of gripping has increased the area of contact between hand and the drive block when gripping the drive block, and then has increased and has twisted the frictional force between hand and the drive block when moving the drive block, makes the hand be difficult for taking place relative slip with the drive block when twisting the drive block, has improved the efficiency of twisting 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 supporting tubes 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 supporting tubes to lift together through the three transmission components, so that synchronous lifting adjustment of the three supporting tubes relative to the base is realized, and the use efficiency of the positioning device for engineering surveying and mapping is improved;
2. the anchor rod can be driven to be inserted into or slide out of the supporting tube by rotating the adjusting sleeve, 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 surveying and mapping according to an embodiment of the present application.
Fig. 2 is a schematic partial explosion view of the support tube, the driving sleeve, the driving rod, the stud and the driving sleeve according to the embodiment of the application.
Fig. 3 is a partially exploded view of the guide post and locking block, screw, and stud of the present application.
Fig. 4 is a schematic partial explosion view of the anchor rod, the adjusting sleeve and the support tube according to the embodiment of the application.
Description of reference numerals: 10. a base; 11. a guide post; 111. a chute; 112. a locking groove; 113. a communicating groove; 20. a support bar; 30. supporting a tube; 31. a rotating groove; 40. a stud; 41. a sliding hole; 42. perforating holes; 50. a drive sleeve; 51. a sliding 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 limiting part; 70. an adjustment assembly; 71. an anchor rod; 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 drive block; 831. a holding groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses positioner is used in engineering survey and drawing. Referring to fig. 1, the positioning device for engineering surveying and mapping 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, base 10 introduces with discoid as the example in this embodiment, bracing piece 20 articulates the downside at base 10, the quantity of bracing piece 20 is three at least, at least three bracing piece 20 sets up along the circumference interval of base 10, at least three bracing piece 20 can follow the even setting of circumference of base 10, at least three bracing piece 20 also can follow the uneven setting of circumference of base 10, in this embodiment, the quantity of bracing piece 20 introduces with three as the example, three bracing piece 20 evenly sets up along the circumference of base 10. The supporting tubes 30 correspond to the supporting rods 20 one by one, the supporting tubes 30 are sleeved on the supporting rods 20 and connected with the supporting rods 20 in a sliding manner, and the supporting rods 20 are arranged in a cylindrical manner. 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 on the lower side of the base 10, the axis of the stud 40 and the axis of the base 10 coincide with each other, 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 to cooperate with the driving sleeve 50 to drive the three supporting tubes 30 to synchronously descend relative to the base 10.
Specifically, the driving assembly 60 includes a driving rod 61 and a driving sleeve 62, and one end of the driving sleeve 62 is hinged to the outer side wall of the support pipe 30. The driving rod 61 includes a sliding part 611 and a sliding limiting part 612, one end of the sliding part 611 close to the supporting tube 30 is inserted into the driving sleeve 62 and connected to the driving sleeve 62 in a sliding manner, in this embodiment, the sliding part 611 takes a cylindrical shape as an example. The sliding position-limiting portion 612 is fixed at one end of the sliding portion 611 close to the driving sleeve 50, the sliding position-limiting portion 612 may be rectangular plate-shaped, may be arc-shaped plate-shaped, or may be disc-shaped, and in this embodiment, the sliding position-limiting portion 612 is described by taking a disc-shaped as an 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 concentrically arranged 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 and rotationally slide around the axis of the driving sleeve 50, and the sliding groove 51 is used for the sliding limiting part 612 to be embedded and rotationally slide around the axis of the driving sleeve 50.
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 this time, the sliding part 611 and the sliding limiting part 612 are lifted along with the driving sleeve 50, the three support pipes 30 are driven to be lifted along with the driving sleeve 50 through the relative sliding of the sliding part 611 and the transmission sleeve 62, and the synchronous lifting adjustment of the three support pipes 30 relative to the base 10 is realized.
In order to facilitate the installation of 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 communicated with the sliding groove 51, and the end 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, a stud 40 is slidably connected to a lower side of a base 10, specifically, a guide post 11 is fixed to the lower side of the base 10, the guide post 11 and the base 10 are concentrically arranged, a sliding hole 41 is formed in an upper side of the stud 40, the sliding hole 41 is arranged toward the base 10, the guide post 11 is inserted into the sliding hole 41 and slidably connected to the stud 40, and an outer diameter of the guide post 11 is equal to an inner diameter of the sliding hole 41, so as to slidably 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 to the guide post 11.
Specifically, the locking assembly 80 includes a locking block 81, a screw 82, and a drive block 83. Locking piece 81 is the cubic setting of rectangle, has seted up spout 111 on the guide post 11, and spout 111 sets up and link up the both ends of guide post 11 along the axial of guide post 11, and spout 111 supplies locking piece 81 to inlay to establish and slides, and locking piece 81 can not be in spout 111 internal rotation. The screw 82 extends to the groove bottom of the sliding groove 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, a penetrating hole 42 communicated with the sliding hole 41 is formed in the stud 40, the screw 82 penetrates through the penetrating hole 42, the screw 82 is rotatably connected with the stud 40, and a threaded hole 811 in threaded connection with the screw 82 is formed in the locking block 81. Have seted up locking groove 112 and intercommunication groove 113 on the guide post 11, locking groove 112 is provided with a plurality ofly along the axial of guide post 11, and a plurality of locking grooves 112 are the interval setting, and locking groove 112 and spout 111 communicate each other, and locking groove 112 supplies locking piece 81 to insert to lock stud 40 on guide post 11, make stud 40 not take place relative slip with guide post 11, and intercommunication groove 113 and spout 111 communicate each other, and intercommunication groove 113 is used for connecting two adjacent locking grooves 112. The driving block 83 is fixed at one end of the screw rod 82 far away from the locking block 81, the driving block 83 abuts against the outer side wall of the stud 40, and when the driving block 83 is rotated, the screw rod 82 and the locking block 81 relatively rotate to drive the locking block 81 to slide from the sliding groove 111 to the locking groove 112 or slide from the locking groove 112 to the sliding groove 111.
In the embodiment, the driving block 83 is described by taking a disc shape as an example, and in order to rotate the driving block 83 conveniently, a holding groove 831 is formed in the outer peripheral wall of the driving block 83 to increase the contact area between a hand and the driving block 83 when the driving block 83 is rotated, so that the frictional resistance between the hand and the driving block 83 is increased, and the driving block 83 is rotated conveniently.
Referring to fig. 1 and 4, the positioning apparatus for engineering surveying and mapping further includes an adjustment assembly 70, and the adjustment 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, wherein the lower end of the anchor rod 71 is arranged in a conical shape with a gradually decreasing diameter, 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, the end surface of the adjusting sleeve 72 close to the supporting tube 30 is provided with at least two extending pieces 721, the at least two extending pieces 721 are arranged at intervals along the circumferential direction of the adjusting sleeve 72, in this embodiment, four extending pieces 721 are described as an example, the four extending pieces 721 are uniformly arranged along the circumferential direction of the adjusting sleeve 72, one end of each extending piece 721 far away from the adjusting sleeve 72 is fixed with a limiting block 722, the limiting block 722 is arranged towards the direction close to the axis of the supporting tube 30, the outer side wall of the supporting tube 30 close to the adjusting sleeve 72 is provided with a rotating groove 31, and the rotating groove 31 is used for the limiting block 722 to be embedded and rotated, so that the adjusting sleeve 72 is rotatably connected to the supporting tube 30.
The edge of the stopper 722 close to the support tube 30 and far away from the extension piece 721 is provided with a guide surface 7221, and the guide surface 7221 is arranged in a direction away from the axis of the support tube 30 in a way of inclining from the adjusting sleeve 72 to the support tube 30 so as to guide the deformation of the stopper 722 and the extension piece 721 in a direction away from the axis of the support tube 30, so that the stopper 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 base is used, the three support rods 20 are firstly opened to a proper angle, the lower end of the anchor rod 71 is fixedly inserted on the ground, then the height of the base 10 is roughly adjusted, namely, initially, the locking block 81 is inserted into the locking groove 112, the rotary driving block 83 drives the screw rod 82 to rotate, the screw rod 82 is in threaded connection with the locking block 81 to drive the locking block 81 to slide from the locking groove 112 to the sliding groove 111, the stud 40 and the driving sleeve 50 slide 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 to lift the base 10 to a proper height, then the rotary driving block 83 drives the screw rod 82 to rotate, the locking block 81 is driven to slide from the sliding groove 111 to the locking groove 112 through the threaded connection of the screw rod 82 and the locking block 81, and the stud 40 is locked on the guide column 11. Then, fine adjustment is performed, the driving sleeve 50 is rotated, the driving sleeve 50 is lifted relative to the stud 40, and the three supporting tubes 30 are driven to be lifted synchronously relative to the base 10 through the three transmission assemblies 60. Finally, the adjusting sleeve 72 is rotated, and the length of the anchor rod 71 extending out of the supporting tube 30 is adjusted through the adjusting sleeve 72, so that the three supporting heights of the base 10 are adjusted independently.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A positioning device for engineering surveying and mapping, comprising:
a base (10) for placing a surveying instrument;
the number of the support rods (20) is at least three, the support rods are arranged at intervals along the circumferential direction of the base (10), and the support rods (20) are hinged with the base (10);
the supporting tube (30) is sleeved on the supporting rod (20) and is connected with the supporting rod (20) in a sliding mode, and one end, far away from the base (10), of the supporting tube (30) is fixed on a base surface;
the stud (40) is arranged on the lower side of the base (10) and positioned between 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
and one end of the transmission component (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 component is hinged with the supporting pipes (30) so as to drive at least three supporting pipes (30) to descend relative to the base (10).
2. The positioning device for engineering surveying according to claim 1, characterized in that said transmission assembly (60) comprises:
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 support pipe (30), and the other end of the transmission sleeve is sleeved on the transmission rod (61) and is connected with the transmission rod (61) in a sliding mode;
the drive 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 arranged on 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 penetrate and slide.
3. The positioning device for engineering surveying and mapping according to claim 2, wherein: one side of the driving sleeve (50) close to the base (10) is provided with a sliding groove (52), 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).
4. The positioning device for engineering surveying and mapping according to claim 1, further comprising an adjusting assembly (70) disposed at an end of the supporting tube (30) far from the base (10), wherein the adjusting assembly (70) comprises:
the anchor rod (71) is arranged at one end, far away from the base (10), of the supporting pipe (30) in a penetrating mode and is connected with the supporting pipe (30) in a sliding mode; and
the adjusting sleeve (72) is sleeved on the anchor rod (71) and 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 pipe (30) along the circumferential rotation of the supporting pipe (30).
5. The positioning device for engineering surveying and mapping according to claim 4, wherein: the adjusting sleeve (72) is equipped with at least two extension pieces (721) on being close to the terminal surface of stay tube (30), and at least two extension piece (721) set up along the circumference interval of adjusting sleeve (72), one side that extension piece (721) are close to stay tube (30) is fixed with stopper (722), be equipped with on the lateral wall that stay tube (30) are close to adjusting sleeve (72) and supply stopper (722) to inlay to establish pivoted rotation groove (31).
6. The positioning device for engineering surveying and mapping according to claim 5, wherein: the limiting block (722) is provided with a guide surface (7221) for guiding the extension piece (721) to deform in the axial direction away from the adjusting sleeve (72).
7. The positioning device for engineering surveying and mapping according to claim 1, wherein: the downside of base (10) is fixed with guide post (11), be equipped with on double-screw bolt (40) and supply guide post (11) to insert slip hole (41) that slide, slip hole (41) set up towards base (10), be equipped with on double-screw bolt (40) and lock double-screw bolt (40) locking subassembly (80) on guide post (11).
8. The positioning device for engineering surveying according to claim 7, characterized in that said locking assembly (80) comprises:
the locking device comprises a locking block (81), wherein a sliding groove (111) for the locking block (81) to slide in an embedded mode is formed in a guide column (11), the sliding groove (111) is arranged along the axial direction of the guide column (11), a plurality of locking grooves (112) and communication grooves (113) communicated with the adjacent locking grooves (112) are formed in the outer side wall of the guide column (11), the locking grooves (112) are communicated with the sliding groove (111), and the locking grooves (112) are arranged along the axial direction of the guide column (11);
the screw (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 (82) is in threaded connection with the locking block (81), and a penetrating hole (42) for the screw (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) which is fixed at one end of the screw (82) far away from the locking block (81) and is abutted against the outer side wall of the stud (40).
9. The positioning device for engineering surveying and mapping according to claim 8, wherein: the outer side wall of the driving block (83) is provided with a holding groove (831).
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