RTK measurement handbook support

Abstract

An RTK measurement handbook support relates to the technical field of RTK data acquisition, and comprises a base, the bottom of which is provided with a binding member; the horizontal rotating part is arranged at the upper part of the base; the bracket is rotationally mounted at the upper part of the horizontal rotating piece in the vertical direction through a connecting piece; the clamping piece is arranged at the upper part of the bracket; the binding piece is bound on the wrist or the arm of a measuring person, the measuring handbook is clamped and fixed through the clamping piece, then in the measuring process, the measuring angle of the measuring handbook in the horizontal direction is adjusted by rotating the horizontal rotating piece, and the measuring angle of the measuring handbook in the vertical direction is adjusted by rotating the bracket. And then the measurement handbook is operated for measurement. The portable measuring handbook support is simple and convenient to operate, small and simple in overall structure, convenient to carry and transfer, capable of being used in different measuring scenes, convenient to adjust the measuring angle of a measuring handbook, suitable for measuring handbooks of different specifications, capable of improving measuring efficiency and capable of reducing working risks.

Description

Technical Field

[0001] This utility model relates to the field of RTK data acquisition technology, specifically to an RTK measurement handheld device support. Background Technology

[0002] RTK measurement technology, short for Real Time Kinematic, is a high-precision real-time positioning technology that combines global satellite navigation and positioning technology with data communication technology. The core of RTK measurement technology includes a base station and mobile equipment. The mobile equipment mainly consists of a GNSS receiver, a measurement handheld device, a measurement centering rod, and a measurement handheld device bracket, with the bracket used to mount the measurement handheld device.

[0003] Chinese utility model patent with authorization announcement number CN219473290U discloses a portable RTK bracket that can simultaneously acquire photos. It places the measuring handpiece between a first clamping block and a second clamping block, and rotates the adjusting bolt to move the second clamping block, so that the first clamping block and the second clamping block clamp the measuring handpiece.

[0004] While the aforementioned patented RTK bracket can clamp and fix the surveying handheld device, its use requires the surveyor to hold the RTK bracket in one hand and operate the surveying handheld device buttons with the other. In surveying scenarios with undulating terrain, ravines, and complex features, the surveyor must use both hands to ensure their own safety while using the RTK bracket to measure data, making the operation extremely inconvenient and posing certain work risks. Furthermore, when moving to a different data collection site, the surveyor still needs to hold the RTK bracket in one hand, which hinders rapid relocation and affects measurement efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an RTK measurement handheld device holder, which solves the problems of inconvenience in use, low measurement efficiency, and operational risks associated with existing RTK handheld device holders.

[0006] An RTK measurement handheld device holder, comprising:

[0007] The base has a binding device at its bottom;

[0008] A horizontally rotating component is disposed on the upper part of the base;

[0009] A bracket, which is rotatably mounted vertically on top of a horizontally rotating member via a connector; and

[0010] A clamping element is disposed on the upper part of the bracket;

[0011] In assembly, the measuring book is clamped and fixed by the clamping piece, and the angle of the measuring book is adjusted by rotating the horizontal rotating piece and the bracket.

[0012] Compared with the prior art, the utility model has the advantages that in use, the binding member is bound on the wrist or arm of the measurer, the measuring book is clamped and fixed by the clamping piece, then in the measuring process, the measuring angle of the measuring book in the horizontal direction is adjusted by rotating the horizontal rotating piece, the measuring angle of the measuring book in the vertical direction is adjusted by rotating the bracket, then the measuring book is operated to measure, the operation is simple and convenient, the overall structure of the bracket is small and simple, convenient to carry and transport, can be used in different measuring scenes, and the measuring angle of the measuring book can be conveniently adjusted, and is suitable for different specifications of measuring books, the measuring efficiency is improved, and the work risk is reduced.

[0013] Preferably, the horizontal rotating piece comprises an inner threaded sleeve vertically rotatably installed on the upper portion of the base, a connecting rod with one end coaxially and threadedly connected to the upper end of the inner threaded sleeve, and a rotating frame fixedly connected to the other end of the connecting rod, the connecting piece is rotatably connected to the rotating frame, and a first locking piece is arranged between the inner threaded sleeve and the base.

[0014] Preferably, the base comprises a mounting disc arranged horizontally, a connecting plate fixedly installed on the lower end face of the mounting disc, and a closure ring detachably connected coaxially to the upper end face of the mounting disc, the upper end face of the mounting disc is provided with a mounting groove, the end of the inner threaded sleeve away from the connecting rod is coaxially and fixedly provided with a clamping disc, the radius of the clamping disc is greater than the radius of the inner threaded sleeve, and the clamping disc is rotatably clamped between the mounting groove and the closure ring.

[0015] Preferably, a plurality of arc-shaped grooves are arranged on the side wall of the clamping disc along the circumferential direction, the first locking piece comprises a first screw rod threadedly penetrating the mounting disc along the radial direction of the mounting disc, one end of the first screw rod penetrating into the mounting groove is used for abutting against one of the arc-shaped grooves, and the other end of the first screw rod located outside the mounting disc is coaxially and fixedly provided with a first knob, and the binding member is connected to the connecting plate.

[0016] Preferably, a plurality of sliding grooves are arranged on the inner wall of the mounting groove along the circumferential direction, each sliding groove is arranged along the radial direction of the mounting disc, a damping block is slidably arranged between the inner and outer sides of each sliding groove, a first spring is elastically connected between the damping block and the side wall of the sliding groove away from the mounting groove, and the plurality of damping blocks are used for elastically and slidingly abutting against the plurality of arc-shaped grooves one by one.

[0017] Preferably, one side of the rotating frame is provided with a sliding blind hole in horizontal direction, upper part of the rotating frame is provided with a plurality of installation positions communicated with the sliding blind hole in horizontal direction, a plurality of rotating blocks are fixedly installed on the bottom of the bracket in horizontal direction, each rotating block is provided with an installation hole, a plurality of installation positions are correspondingly clamped into a plurality of installation positions, each installation hole is communicated with the sliding blind hole, the connecting piece comprises a sliding rod freely penetrating through the sliding blind hole, a plurality of installation positions and a plurality of installation holes, a plurality of prismatic segments are arranged on the sliding rod in axial direction, each installation hole is a polygonal hole, a plurality of prismatic segments are correspondingly penetrated into a plurality of installation holes, and the second locking piece is arranged between the sliding rod and the bracket.

[0018] Preferably, the second locking piece comprises a damping head fixedly installed on one end of the sliding rod in the sliding blind hole and a second screw rod rotationally connected with the other end of the sliding rod, the second screw rod is threadedly connected with the bracket, and a second knob is coaxially and fixedly installed on the end of the second screw rod away from the sliding rod.

[0019] Preferably, the bracket is in H-shaped structure, the vertical section of the bracket is arranged in horizontal direction, the two horizontal sections of the bracket are located at the two sides of the rotating frame respectively, the second screw rod is threadedly penetrated through the upper part of one horizontal section of the bracket, a plurality of rotating blocks are fixedly installed on the bottom of the vertical section of the bracket, the clamping piece comprises a clamping plate slidingly arranged on the upper part of the vertical section of the bracket and a third screw rod threadedly penetrated through the upper part of one horizontal section of the bracket, one end of the third screw rod is rotationally connected with the clamping plate, and a third knob is coaxially and fixedly installed on the other end of the third screw rod.

[0020] Preferably, the upper part of the horizontal section opposite to the clamping plate of the bracket is provided with an assembly groove, a limiting piece is arranged between the inner side and the outer side of the assembly groove, the limiting piece comprises a sliding plate slidingly arranged between the inner side and the outer side of the assembly groove, a limiting plate is fixedly installed on the end of the sliding plate away from the assembly groove, and a fixing block is fixedly installed on the two opposite side walls of the end of the sliding plate in the assembly groove, the limiting plate is arranged towards the clamping plate, the upper part of the horizontal section opposite to the clamping plate of the bracket is arranged with two L-shaped plates, the vertical section of each L-shaped plate is matched with the slot of the assembly groove, the horizontal section of each L-shaped plate is matched with the side wall of the bracket away from the clamping plate and is fixedly connected with the bracket through a bolt, and the two bolts are penetrated into the assembly groove and are elastically connected with the two fixing blocks through a second spring one by one.

[0021] Preferably, the connecting plate is in arc-shaped structure bending towards the mounting disc, and the binding piece comprises a binding belt connected between the two ends of the connecting plate.

[0022] Other advantages, objects and features of the present application will be partly illustrated through the following description, and will be partly understood by those skilled in the art through research and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Structure schematic view of the embodiment of the utility model.

[0024] Figure 2 For Figure 1 Partial sectional view of cooperation of middle base and internal thread sleeve.

[0025] Figure 3 For Figure 2 Structure schematic view of middle base.

[0026] Figure 4 For Figure 2 Structure schematic view of middle internal thread sleeve.

[0027] Figure 5 For Figure 1 Structure schematic view of middle bracket.

[0028] Figure 6 For Figure 1 Structure schematic view of middle rotating frame and connecting rod.

[0029] Figure 7 For Figure 1 Assembly schematic view of middle sliding rod and second locking piece.

[0030] Figure 8 For Figure 1 Structure schematic view of middle limiting piece.

[0031] Figure 9 For Figure 1 Assembly sectional view of middle limiting piece and bracket.

[0032] The serial numbers of the figure are as follows: 1, mounting disc; 11, mounting groove; 12, sliding groove; 13, damping block; 14, first spring; 15, first knob; 16, first screw rod; 17, connecting plate; 18, bandage; 2, closed ring; 3, internal thread sleeve; 31, clamping disc; 32, arc-shaped groove; 4, rotating frame; 41, connecting rod; 42, sliding blind hole; 43, mounting position; 44, sliding rod; 45, second screw rod; 46, second knob; 47, prism section; 48, damping head; 5, bracket; 51, rotating block; 52, mounting hole; 53, assembly groove; 6, clamping plate; 61, third screw rod; 62, third knob; 7, sliding plate; 71, limiting plate; 72, fixed block; 73, second spring; 8, L-shaped plate; 81, bolt; 9, elastic pad. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, purposes and effects realized by the utility model more clear and easy to understand, the utility model is further described below by combining with the drawings and specific embodiments:

[0034] For example, Figure 1As shown, the embodiment of the utility model provides a kind of RTK measurement hand book support, comprising: base, its bottom is equipped with binding piece;Horizontal rotating member, it is set on the upper portion of the base;Bracket 5, it is installed in the upper portion of horizontal rotating member along vertical direction by connecting piece;And clamping piece, it is set on the upper portion of the bracket 5;When assembling, measurement hand book is clamped and fixed by clamping piece, and the angle of measurement hand book is adjusted by rotating horizontal rotating member and bracket 5.

[0035] Binding piece is bound on the wrist or arm of surveyor, and measurement hand book is clamped and fixed by clamping piece, then in the measurement process, the measurement angle of measurement hand book in horizontal direction is adjusted by rotating horizontal rotating member, and the measurement angle of measurement hand book in vertical direction is adjusted by rotating bracket 5, then measurement hand book is operated to measure, it is simple and convenient to operate, and the overall structure of support is small and simple, convenient to carry and transport, can be used in different measurement scenes, and it is also convenient to adjust the measurement angle of measurement hand book, and it is suitable for different specifications of measurement hand book, improve measurement efficiency, reduce work risk.

[0036] As Figures 1-4 As shown, according to another embodiment of the utility model, a kind of RTK measurement hand book support, further optimization to the horizontal rotating member and base comprising it, the horizontal rotating member includes vertical rotating installation in the upper portion of base inner thread sleeve 3, one end with the coaxial thread connection of inner thread sleeve 3 upper end connecting rod 41 and with connecting rod 41 another end fixed connection rotating frame 4, the connecting piece is rotationally connected with rotating frame 4, first locking piece is equipped between the inner thread sleeve 3 and base;Rotating frame 4 is operated, and inner thread sleeve 3 is rotated by connecting rod 41.

[0037] The base includes horizontally arranged mounting disc 1, connecting plate 17 fixedly installed on the lower end surface of mounting disc 1 and closed ring 2 coaxially detachably connected with the upper end surface of mounting disc 1, the upper end surface of mounting disc 1 is provided with mounting groove 11, one end of inner thread sleeve 3 away from connecting rod 41 is coaxially fixedly installed with clamping disc 31, the radius of clamping disc 31 is greater than the radius of inner thread sleeve 3, and clamping disc 31 is rotationally clamped between mounting groove 11 and closed ring 2;Wherein closed ring 2 is fixedly connected with the upper end surface of mounting disc 1 by a plurality of screws.

[0038] The side wall of the clamping disc 31 is provided with a plurality of arc-shaped grooves 32 along the circumference thereof, the first locking member comprises a first screw rod 16 penetrating the mounting disc 1 along the radial direction of the mounting disc 1, one end of the first screw rod 16 penetrating into the mounting groove 11 is used to abut against one of the arc-shaped grooves 32, and the other end of the first screw rod 16 located outside the mounting disc 1 is coaxially fixedly provided with a first knob 15, and the binding member is connected with the connecting plate 17; after the inner threaded sleeve 3 is rotated to the position, the one end of the first screw rod 16 penetrating into the mounting groove 11 is aligned with one of the arc-shaped grooves 32, and then the first knob 15 is rotated to drive the first screw rod 16 to move into the mounting groove 11 and abut against the arc-shaped groove 32.

[0039] As Figures 2-4 shown, according to another embodiment of the utility model, the mounting groove 11 is preferably provided with a plurality of sliding grooves 12 on the inner wall thereof along the circumference thereof, each of the sliding grooves 12 is arranged along the radial direction of the mounting disc 1, a damping block 13 is slidingly arranged between the inner side and the outer side of each of the sliding grooves 12, the damping block 13 is elastically connected with the first spring 14 between the side wall of the sliding groove 12 away from the mounting groove 11, and the plurality of damping blocks 13 are used to correspondingly abut against the plurality of arc-shaped grooves 32; during the rotation of the inner threaded sleeve 3, each of the damping blocks 13 slides out of the corresponding arc-shaped groove 32 and compresses the spring, and then slides into another arc-shaped groove 32, through the cooperation of the damping block 13, the spring and the arc-shaped groove 32, the rotation of the inner threaded sleeve 3 has a certain resistance, so that the measurer can clearly feel the rotation process of the inner threaded sleeve 3 and accurately grasp the rotation angle; and preferably, the one end of the damping block 13 located outside the sliding groove 12 is an arc-shaped structure away from the sliding groove 12, which improves the stability and smoothness of the sliding abutment of the damping block 13 and the arc-shaped groove 32.

[0040] As Figure 1 and Figures 5-7As shown in the drawings, according to another embodiment of the utility model, the RTK measurement hand book support, further optimization to its including rotating frame 4, one side of rotating frame 4 is provided with sliding blind hole 42 along horizontal direction, a plurality of installation sites 43 that communicate with sliding blind hole 42 are provided on the upper portion of rotating frame 4 along horizontal direction at intervals, a plurality of rotating blocks 51 are fixedly installed on the bottom of the vertical section of bracket 5 along horizontal direction at intervals, every rotating block 51 is provided with installation hole 52, a plurality of installation sites 43 are correspondingly clamped into a plurality of installation sites 43, every installation hole 52 communicates with sliding blind hole 42, the connecting piece includes sliding rod 44 that freely penetrates sliding blind hole 42, a plurality of installation sites 43 and a plurality of installation holes 52, a plurality of prismatic segments 47 that are arranged at intervals are provided on sliding rod 44 along its axial direction, every installation hole 52 is polygonal hole, a plurality of prismatic segments 47 are correspondingly penetrated into a plurality of installation holes 52, can guarantee rotating bracket 5, through the cooperation of installation hole 52 on rotating block 51 and prismatic segment 47, drive sliding rod 44 to rotate, and the width of a plurality of prismatic segments 47 is same with the diameter of sliding rod 44;

[0041] Second locking piece is established between sliding rod 44 and bracket 5, the second locking piece includes damping head 48 that is fixedly installed on one end of sliding rod 44 in sliding blind hole 42 and second screw rod 45 that is rotationally connected with the other end of sliding rod 44, second screw rod 45 is threadedly connected with bracket 5, and second knob 46 is coaxially fixedly installed on the end of second screw rod 45 away from sliding rod 44, when bracket 5 is rotated to the position, hand holds bracket 5, guarantees its position is inconvenient, then twists second knob 46 and drives second screw rod 45 to rotate, so that second screw rod 45 drives sliding rod 44 to slide into sliding blind hole 42, until damping head 48 abuts against the bottom of sliding blind hole 42, to limit the rotation of bracket 5.

[0042] As shown in the drawings, Figure 1 And Figure 5 As shown in the drawings, according to another embodiment of the utility model, the RTK measurement hand book support, further optimization to its including clamping piece, the bracket 5 is I-shaped structure, and the vertical section of bracket 5 is arranged along the horizontal direction, and the two horizontal sections of bracket 5 are located on the two sides of rotating frame 4 respectively, the second screw rod 45 is threadedly penetrated through the upper portion of one of the horizontal sections of bracket 5, and a plurality of rotating blocks 51 are fixedly installed on the bottom of the vertical section of bracket 5, the clamping piece includes clamping plate 6 that is slidably arranged on the upper portion of the vertical section of bracket 5 and third screw rod 61 that is threadedly penetrated through the upper portion of one of the horizontal sections of bracket 5, one end of third screw rod 61 is rotationally connected with clamping plate 6, and third knob 62 is coaxially fixedly installed on the other end of third screw rod 61, when clamping the measurement hand book, the measurement hand book is placed on the upper portion of the vertical section of bracket 5, then third knob 62 is rotated to push clamping plate 6 to move towards the horizontal section of bracket 5 opposite to it, and then the measurement hand book is clamped and fixed between the two.

[0043] As Figures 8-9 shown in Figure 1, according to another embodiment of the utility model, a kind of RTK measurement hand book support, preferably, the upper portion of the horizontal section of bracket 5 and clamping plate 6 opposite is equipped with assembly slot 53, limit piece is equipped between the inside and outside of assembly slot 53, the limit piece includes sliding plate 7 slidingly arranged between the inside and outside of assembly slot 53, one end of sliding plate 7 outside assembly slot 53 is fixedly installed with limit plate 71, two opposite side walls of the end of sliding plate 7 inside assembly slot 53 are both fixedly installed with fixed block 72, the limit plate 71 is arranged towards clamping plate 6, the upper portion of horizontal section of bracket 5 and clamping plate 6 opposite is arranged with two L-shaped plates 8, the vertical section of each L-shaped plate 8 is all matched with the slot of assembly slot 53, the horizontal section of each L-shaped plate 8 is all matched with the side wall of bracket 5 away from clamping plate 6 and is fixedly connected with bracket 5 by bolt 81, two bolt 81 are all threaded into assembly slot 53 and are elastically connected between two fixed blocks 72 by second spring 73 one by one;For the measurement hand book of different thickness, limit plate 71 can be pulled to drive sliding plate 7 to slide out of assembly slot 53, and two second springs 73 are stretched, then measurement hand book is clamped between clamping plate 6 and the vertical section of corresponding bracket 5, then limit plate 71 is loosened, by the elastic action of two second springs 73, limit plate 71 is closely matched with measurement hand book, to play the role of limiting.

[0044] As Figures 1-3 shown in Figure 1, according to another embodiment of the utility model, a kind of RTK measurement hand book support, preferably, the upper portion of the horizontal section of bracket 5 and clamping plate 6 opposite is equipped with assembly slot 53, limit piece is equipped between the inside and outside of assembly slot 53, the limit piece includes sliding plate 7 slidingly arranged between the inside and outside of assembly slot 53, one end of sliding plate 7 outside assembly slot 53 is fixedly installed with limit plate 71, two opposite side walls of the end of sliding plate 7 inside assembly slot 53 are both fixedly installed with fixed block 72, the limit plate 71 is arranged towards clamping plate 6, the upper portion of horizontal section of bracket 5 and clamping plate 6 opposite is arranged with two L-shaped plates 8, the vertical section of each L-shaped plate 8 is all matched with the slot of assembly slot 53, the horizontal section of each L-shaped plate 8 is all matched with the side wall of bracket 5 away from clamping plate 6 and is fixedly connected with bracket 5 by bolt 81, two bolt 81 are all threaded into assembly slot 53 and are elastically connected between two fixed blocks 72 by second spring 73 one by one;For the measurement hand book of different thickness, limit plate 71 can be pulled to drive sliding plate 7 to slide out of assembly slot 53, and two second springs 73 are stretched, then measurement hand book is clamped between clamping plate 6 and the vertical section of corresponding bracket 5, then limit plate 71 is loosened, by the elastic action of two second springs 73, limit plate 71 is closely matched with measurement hand book, to play the role of limiting.

[0045] As Figure 1 shown in Figure 1, according to another embodiment of the utility model, a kind of RTK measurement hand book support, preferably, the upper portion of the horizontal section of bracket 5 and clamping plate 6 opposite is equipped with assembly slot 53, limit piece is equipped between the inside and outside of assembly slot 53, the limit piece includes sliding plate 7 slidingly arranged between the inside and outside of assembly slot 53, one end of sliding plate 7 outside assembly slot 53 is fixedly installed with limit plate 71, two opposite side walls of the end of sliding plate 7 inside assembly slot 53 are both fixedly installed with fixed block 72, the limit plate 71 is arranged towards clamping plate 6, the upper portion of horizontal section of bracket 5 and clamping plate 6 opposite is arranged with two L-shaped plates 8, the vertical section of each L-shaped plate 8 is all matched with the slot of assembly slot 53, the horizontal section of each L-shaped plate 8 is all matched with the side wall of bracket 5 away from clamping plate 6 and is fixedly connected with bracket 5 by bolt 81, two bolt 81 are all threaded into assembly slot 53 and are elastically connected between two fixed blocks 72 by second spring 73 one by one;For the measurement hand book of different thickness, limit plate 71 can be pulled to drive sliding plate 7 to slide out of assembly slot 53, and two second springs 73 are stretched, then measurement hand book is clamped between clamping plate 6 and the vertical section of corresponding bracket 5, then limit plate 71 is loosened, by the elastic action of two second springs 73, limit plate 71 is closely matched with measurement hand book, to play the role of limiting.

[0046] The use principle of the utility model is: the utility model uses, the connecting plate 17 is pasted with the wrist or arm of the measurer, then is fixed through the bandage 18, the measuring hand book is placed on the upper part of the vertical section of the bracket 5, then the limiting plate 71 is pulled and the sliding plate 7 is slid outward to the assembly groove 53, and two second springs 73 are stretched, then the third knob 62 is rotated and the clamping plate 6 is moved towards the horizontal section of the bracket 5 opposite to it, to clamp and fix the measuring hand book, then the limiting plate 71 is loosened, through the elastic action of two second springs 73, the limiting plate 71 is closely pasted with the measuring hand book, to play the limiting action, then the bracket 5 is rotated, through the cooperation of the mounting hole 52 on the plurality of rotating blocks 51 and the prism section 47, the sliding rod 44 is driven to rotate, when the bracket 5 is rotated in place, the bracket 5 is held, to ensure that its position is inconvenient, then the second knob 46 is screwed and the second screw rod 45 is rotated, the second screw rod 45 drives the sliding rod 44 to slide into the sliding blind hole 42, until the damping head 48 abuts against the bottom of the sliding blind hole 42, to limit the rotation of the bracket 5, thereby completing the adjustment of the measuring angle of the measuring hand book in the vertical direction, then the rotating frame 4 is operated to rotate, the inner thread sleeve 3 is driven to rotate through the connecting rod 41, after being rotated in place, the one end of the first screw rod 16 in the mounting groove 11 is aligned with one arc-shaped groove 32, then the first knob 15 is rotated, the first screw rod 16 is moved into the mounting groove 11 and abuts against the arc-shaped groove 32, to fix the position of the inner thread sleeve 3, thereby completing the adjustment of the measuring angle of the measuring hand book in the horizontal direction.

[0047] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the utility model and not to limit, although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, which should be covered in the claim scope of the utility model.

Claims

1. An RTK measurement book stand, characterized in that, The utility model relates to a measuring hand book fixing device, which comprises: a base provided with a binding part at the bottom; a horizontal rotating part arranged on the upper part of the base; a bracket (5) vertically rotatably arranged on the upper part of the horizontal rotating part through a connecting part; and a clamping part arranged on the upper part of the bracket (5). When assembled, the measuring hand book is clamped and fixed by the clamping part, and the angle of the measuring hand book is adjusted by rotating the horizontal rotating part and the bracket (5). The horizontal rotating part comprises an internally threaded sleeve (3) vertically rotatably arranged on the upper part of the base, a connecting rod (41) coaxially and threadedly connected to one end of the upper end of the internally threaded sleeve (3), and a rotating frame (4) fixedly connected to the other end of the connecting rod (41), the connecting part is rotatably connected to the rotating frame (4), and a first locking part is arranged between the internally threaded sleeve (3) and the base.

2. The RTK measurement book stand of claim 1, wherein, The base comprises a mounting disc (1) horizontally arranged, a connecting plate (17) fixedly arranged on the lower end surface of the mounting disc (1), and a closing ring (2) coaxially and detachably connected to the upper end surface of the mounting disc (1), the upper end surface of the mounting disc (1) is provided with a mounting groove (11), one end of the internally threaded sleeve (3) away from the connecting rod (41) is coaxially and fixedly provided with a clamping disc (31), the radius of the clamping disc (31) is greater than the radius of the internally threaded sleeve (3), and the clamping disc (31) is rotatably clamped between the mounting groove (11) and the closing ring (2).

3. The RTK measurement book stand of claim 2, wherein, A plurality of arc-shaped grooves (32) are arranged on the side wall of the clamping disc (31) along the circumferential direction, the first locking part comprises a first screw rod (16) threadedly penetrating the mounting disc (1) along the radial direction of the mounting disc (1), one end of the first screw rod (16) penetrating into the mounting groove (11) is used for abutting against one of the arc-shaped grooves (32), and the other end of the first screw rod (16) located outside the mounting disc (1) is coaxially and fixedly provided with a first knob (15), and the binding part is connected to the connecting plate (17).

4. The RTK measurement book stand of claim 3, wherein, A plurality of sliding grooves (12) are arranged on the inner wall of the mounting groove (11) along the circumferential direction, each sliding groove (12) is arranged along the radial direction of the mounting disc (1), and a damping block (13) is slidably arranged between the inner side and the outer side of each sliding groove (12), a first spring (14) is elastically connected between the damping block (13) and the side wall of the sliding groove (12) away from the mounting groove (11), and the plurality of damping blocks (13) are used for one-to-one elastic sliding abutment with the plurality of arc-shaped grooves (32).

5. The RTK measurement book stand of claim 4, wherein, ​ 6. The RTK measurement book stand of claim 2, wherein, One side of the rotating frame (4) is provided with a sliding blind hole (42) in the horizontal direction, and a plurality of installation positions (43) are provided on the upper part of the rotating frame (4) in the horizontal direction and communicated with the sliding blind hole (42), a plurality of rotating blocks (51) are fixedly installed on the bottom of the bracket (5) in the horizontal direction, and an installation hole (52) is formed in each rotating block (51), each installation position (43) is clamped into the corresponding installation position (43), each installation hole (52) is communicated with the sliding blind hole (42), the connecting piece comprises a sliding rod (44) which freely penetrates the sliding blind hole (42), the plurality of installation positions (43) and the plurality of installation holes (52), a plurality of prismatic segments (47) are arranged on the sliding rod (44) in the axial direction, each installation hole (52) is a polygonal hole, and each prismatic segment (47) penetrates into the corresponding installation hole (52). The second locking member is arranged between the sliding rod (44) and the bracket (5).

7. The RTK measurement book stand of claim 6, wherein, The second locking member comprises a damping head (48) fixedly installed on one end of the sliding rod (44) in the sliding blind hole (42) and a second screw rod (45) rotationally connected with the other end of the sliding rod (44), the second screw rod (45) is threadedly connected with the bracket (5), and a second knob (46) is coaxially and fixedly installed on the end of the second screw rod (45) away from the sliding rod (44).

8. The RTK measurement book stand of claim 7, wherein, The bracket (5) is in an I-shaped structure, the vertical section of the bracket (5) is arranged in the horizontal direction, the two horizontal sections of the bracket (5) are located on the two sides of the rotating frame (4) respectively, the second screw rod (45) threadedly penetrates the upper part of one of the horizontal sections of the bracket (5), and the plurality of rotating blocks (51) are fixedly installed on the bottom of the vertical section of the bracket (5). The clamping member comprises a clamping plate (6) slidingly arranged on the upper part of the vertical section of the bracket (5) and a third screw rod (61) threadedly penetrating the upper part of one of the horizontal sections of the bracket (5), one end of the third screw rod (61) is rotationally connected with the clamping plate (6), and the other end is coaxially and fixedly installed with a third knob (62).

9. The RTK measurement book stand of claim 8, wherein, The upper part of the horizontal section of the bracket (5) opposite to the clamping plate (6) is provided with an assembly groove (53), a limiting member is arranged between the inner and outer sides of the assembly groove (53), the limiting member comprises a sliding plate (7) slidingly arranged between the inner and outer sides of the assembly groove (53), one end of the sliding plate (7) located outside the assembly groove (53) is fixedly installed with a limiting plate (71), and the other end of the sliding plate (7) located inside the assembly groove (53) is fixedly installed with two opposite fixed blocks (72). The limiting plate (71) is arranged towards the clamping plate (6), the upper part of the horizontal section of the bracket (5) opposite to the clamping plate (6) is arranged with two L-shaped plates (8) facing each other, the vertical section of each L-shaped plate (8) is matched with the slot of the assembly groove (53), the horizontal section of each L-shaped plate (8) is matched with the side wall of the bracket (5) away from the clamping plate (6) and is fixedly connected with the bracket (5) through a bolt (81), and the two bolts (81) penetrate into the assembly groove (53) and are elastically connected with the two fixed blocks (72) through a second spring (73).

10. The RTK measurement book stand of claim 3, wherein, The connecting plate (17) is an arc-shaped structure curved towards the mounting disc (1), and the binding member comprises a binding belt (18) connected between both ends of the connecting plate (17).

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