RTK measuring device

Abstract

The utility model relates to the technical field of RTK measurement, and discloses an RTK measuring device which comprises an RTK host and a centering rod, an operation panel is arranged on the front side of the RTK host, a camera is arranged on the back side of the RTK host, a mounting hole is formed in the lower end of the RTK host, a positioning column is arranged in the mounting hole, the positioning column and the axis of the mounting hole are parallel and arranged in a staggered mode, and the centering rod is arranged on the RTK host. A thread steel sleeve used for being in threaded connection with the centering rod is coaxially arranged in the mounting hole, a positioning hole corresponding to the positioning column is formed in the top of the thread steel sleeve, and the thread starting point of the thread steel sleeve is located on the positioning plane where the axis of the thread steel sleeve and the axis of the positioning column are located. And a threaded directional hole is formed in the outer wall of the centering rod in the radial direction. The beneficial effects of the utility model are that the positions of the RTK host and the centering rod are fixed after each installation, the angle of the RTK host can be adjusted without rotating the centering rod, and the measurement efficiency and the measurement precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of RTK measurement, in particular to an RTK measurement device. Background Art

[0002] The RTK carrier phase differential technology is a differential method for real-time processing of carrier phase observations of two measurement stations. The carrier phase collected by the reference station is sent to the user receiver for differential solution to calculate coordinates. This is a new and commonly used satellite positioning measurement method. In the past, static, fast static, and dynamic measurements all required post-processing to obtain centimeter-level accuracy, while RTK is a measurement method that can obtain centimeter-level positioning accuracy in the field in real time. It adopts the carrier phase dynamic real-time differential method, which is a major milestone in GPS applications. Its appearance has brought new measurement principles and methods to engineering lofting, topographic mapping, and various control measurements, greatly improving the operation efficiency.

[0003] The existing RTK measurement device includes a centering rod and an RTK host installed on the centering rod. The existing RTK host and centering rod are generally fixed by threads. However, when the RTK and the centering rod are fixed by threads, since the starting position of the thread teeth is not oriented, the position of the centering rod and the RTK host is not fixed every time they are installed. Therefore, every time the RTK measurement device is assembled, it is necessary to rotate the centering rod to adjust the angle of the RTK host so that the operation panel of the RTK host faces the operator and the camera faces away from the operator. The adjustment is time-consuming and there is a certain deviation in the angle adjustment of the RTK host by visual inspection, which affects the measurement effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an RTK measurement device in which the positions of the RTK host and the centering rod are fixed every time they are installed, and there is no need to rotate the centering rod to adjust the angle of the RTK host, thereby improving the measurement efficiency and measurement accuracy.

[0005] To achieve the above purpose, the utility model provides an RTK measurement device, including: an RTK host and a centering rod. An operation panel is provided on the front side of the RTK host, a camera is provided on the back side of the RTK host, an installation hole is provided at the lower end of the RTK host, a positioning column is provided in the installation hole, the positioning column is parallel and offset from the axis of the installation hole, a thread steel sleeve for threaded connection with the centering rod is coaxially provided in the installation hole, a positioning hole corresponding to the positioning column is provided at the top of the thread steel sleeve, the starting point of the thread teeth of the thread steel sleeve is located on a positioning plane where the axes of the thread steel sleeve and the positioning column are located, a thread orientation hole is radially opened on the outer wall of the centering rod, the axis of the thread orientation hole is located on the positioning plane, and the thread orientation hole faces the back side of the RTK host.

[0006] Furthermore, the RTK host includes a base and an upper cover. The mounting holes are provided on the base, and insert molding is used between the base and the threaded steel sleeve.

[0007] Furthermore, an annular limiting portion is provided on the outer wall of the threaded steel sleeve, an annular boss is provided at the bottom of the threaded steel sleeve, and a limiting groove is provided at the top of the annular boss.

[0008] Furthermore, a mounting seat is provided inside the RTK host. The mounting seat is located between the base and the upper cover. The upper cover divides the space between the base and the upper cover into a first cavity and a second cavity. A power supply is provided in the first cavity.

[0009] Furthermore, a clamping assembly for fixing the control handset is provided on the centering rod.

[0010] Furthermore, a threaded connection section corresponding to the threaded steel sleeve is provided at the top end of the centering rod.

[0011] Furthermore, the distance between the axis of the positioning post and the axis of the threaded steel sleeve is greater than or equal to 4 mm.

[0012] Furthermore, the machining error range of the positioning post is between -0.1 mm and 0.1 mm.

[0013] Compared with the prior art, the RTK measuring device according to the embodiment of the present invention has the following beneficial effects: Mounting holes are provided at the lower end of the RTK host. Positioning posts are provided in the mounting holes. The positioning posts are parallel and offset from the axis of the mounting holes. The starting point of the thread of the threaded steel sleeve is located on the positioning plane where the axes of the threaded steel sleeve and the positioning posts are located, so as to fix the starting point of the thread of the threaded steel sleeve, ensuring that the installation positions of the RTK host and the centering rod are fixed each time, and there is no need to rotate the centering rod to adjust the angle of the RTK host, thereby improving the measurement efficiency and measurement accuracy. A threaded orientation hole is radially provided on the outer wall of the centering rod. The axis of the threaded orientation hole is located on the positioning plane, and the threaded orientation hole faces the back side of the RTK host, which is conducive to judging the installation positions of the RTK host and the centering rod during measurement and further improving the measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the RTK measuring device according to the embodiment of the present invention;

[0015] Figure 2 is an exploded view of the parts of the RTK measuring device according to the embodiment of the present invention;

[0016] Figure 3 is an exploded view of the parts of the RTK measuring device from another perspective according to the embodiment of the present invention;

[0017] Figure 4 is a cross-section of the RTK host of the RTK measurement device according to an embodiment of the present utility model;

[0018] Figure 5 is a schematic structural diagram of the threaded steel sleeve of the RTK measurement device according to an embodiment of the present utility model;

[0019] Figure 6 is an axonometric view of the threaded steel sleeve of the RTK measurement device according to an embodiment of the present utility model;

[0020] Figure 7 is an assembly schematic diagram of the RTK host and the threaded steel sleeve of the RTK measurement device according to an embodiment of the present utility model.

[0021] In the figure, 1 is the RTK host; 11 is the operation panel; 12 is the mounting hole; 121 is the positioning post; 13 is the base; 14 is the upper cover; 15 is the mounting seat; 16 is the first cavity; 17 is the second cavity; 18 is the power supply; 2 is the centering rod; 21 is the orientation hole; 22 is the threaded connection section; 3 is the threaded steel sleeve; 31 is the positioning hole; 32 is the annular limiting portion; 33 is the annular boss; 34 is the limiting groove; 300 is the starting point of the thread; 4 is the clamping assembly. Specific Embodiments

[0022] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. in the present utility model is based on the positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device and components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0024] In the description of the present utility model, it should be understood that the terms "first", "second", etc. used in the present utility model to describe various information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0025] Refer to Figures 1 to 7, A RTK measurement device according to a preferred embodiment of the present utility model includes: an RTK host 1 and a centering rod 2. An operation panel 11 is provided on the front side of the RTK host 1, and a camera is provided on the back side of the RTK host 1. The operation panel 11 and the camera are arranged back to back. In the prior art, the RTK host 1 and the centering rod 2 are connected by threads. If a threaded hole is directly opened on the RTK host 1, since the housing of the RTK host 1 is generally made of plastic, directly setting the threaded hole results in a weak connection strength between the centering rod 2 and the RTK host 1, and it is easy to slip the thread. In this embodiment, in order to facilitate the installation of the RTK host 1 and the centering rod 2 and at the same time improve the connection strength between the RTK host 1 and the centering rod 2, an installation hole 12 is provided at the lower end of the RTK host 1, and a threaded steel sleeve 3 for threaded connection with the centering rod 2 is coaxially provided in the installation hole 12. Further, in order to facilitate the positioning between the threaded steel sleeve 3 and the RTK host 1, a positioning post 121 is provided in the installation hole 12. The positioning post 121 is parallel to the axis of the installation hole 12 and is arranged in a staggered manner. A positioning hole 31 corresponding to the positioning post 121 is provided at the top of the threaded steel sleeve 3 to ensure that the position of the threaded steel sleeve 3 and the RTK host 1 remains unchanged after installation. Further still, in order to ensure that the positions of the RTK host 1 and the centering rod 2 are fixed after installation, referring to the figure, the starting point 300 of the thread of the threaded steel sleeve 3 is located on the positioning plane where the axes of the threaded steel sleeve 3 and the positioning post 121 are located. In this embodiment, in order to facilitate the judgment of the installation position of the RTK host 1 and the centering rod 2, a threaded orientation hole 21 is radially opened on the outer wall of the centering rod 2. The axis of the threaded orientation hole 21 is located on the positioning plane, and the threaded orientation hole 21 faces the back side of the RTK host 1.

[0026] In this embodiment, referring to Figure 4 , the RTK host 1 includes a base 13 and an upper cover 14. The installation hole 12 is provided on the base 13. Further, in order to improve the connection strength between the base 13 and the threaded steel sleeve 3, the base 13 and the threaded steel sleeve 3 are formed by insert injection molding. In order to further improve the connection strength between the threaded steel sleeve 3 and the base 13, referring to Figure 5 , Figure 6 , an annular limiting portion 32 is provided on the outer wall of the threaded steel sleeve 3, an annular boss 33 is provided at the bottom of the threaded steel sleeve 3, and a limiting groove 34 is provided at the top of the annular boss 33. The base 13 and the threaded steel sleeve 3 are formed by insert injection molding to form an inverted buckle structure, and the threaded steel sleeve 3 is not easily detached.

[0027] In this embodiment, referring to Figure 4, a power supply 18 and other electronic components are provided inside the RTK host 1. To avoid the heat generated during the operation of the power supply 18 from affecting the operation of other electronic components, a mounting seat 15 is provided inside the RTK host 1. The mounting seat 15 is located between the base 13 and the upper cover 14. The upper cover 14 divides the space between the base 13 and the upper cover 14 into a first cavity 16 and a second cavity 17. The power supply 18 is arranged in the first cavity 16, and other electronic components are arranged in the second cavity 17.

[0028] In this embodiment, to facilitate the fixation of the control handset, refer to Figure 3 , a clamping assembly 4 for fixing the control handset is provided on the centering rod 2. To facilitate the connection with the threaded steel sleeve 3, a threaded connection section 22 corresponding to the threaded steel sleeve 3 is provided at the top of the centering rod 2.

[0029] Further, to facilitate the accurate installation and positioning of the threaded steel sleeve 3 and the positioning post 121, refer to Figure 5 , when the positioning post 121 is arranged on the threaded steel sleeve, it should be as far away from the axis of the threaded steel sleeve 3 as possible. The distance between the axis of the positioning post 121 and the axis of the threaded steel sleeve 3 is greater than or equal to 4 mm. Preferably, in this embodiment, the distance between the axis of the positioning post 121 and the axis of the threaded steel sleeve 3 is 4 mm. To ensure the injection molding accuracy of the threaded steel sleeve 3 and the positioning post 121, the machining error range of the positioning post 121 is between -0.1 mm and 0.1 mm.

[0030] In summary, the embodiment of the present utility model provides an RTK measuring device. An installation hole 12 is provided at the lower end of the RTK host 1. A positioning post 121 is arranged in the installation hole 12. The positioning post 121 is parallel and offset from the axis of the installation hole 12. The starting point 300 of the thread of the threaded steel sleeve 3 is located on the positioning plane where the axes of the threaded steel sleeve 3 and the positioning post 121 are located. The starting point 300 of the thread of the threaded steel sleeve 3 is fixed to ensure that the installation positions of the RTK host 1 and the centering rod 2 are fixed each time. There is no need to rotate the centering rod 2 to adjust the angle of the RTK host 1, improving the measurement efficiency and measurement accuracy. A threaded orientation hole 21 is radially formed on the outer wall of the centering rod 2. The axis of the threaded orientation hole 21 is located on the positioning plane, and the threaded orientation hole 21 faces the back side of the RTK host 1, which is beneficial to judging the installation positions of the RTK host 1 and the centering rod 2 during measurement and further improving the measurement efficiency.

[0031] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.

Claims

1. An RTK measurement device, characterized in that: include: An RTK host and a centering rod, wherein an operation panel is provided on the front side of the RTK host, a camera is provided on the back side of the RTK host, a mounting hole is provided on the lower end of the RTK host, a positioning column is provided in the mounting hole, the positioning column is parallel to the axis of the mounting hole and is staggered, a threaded steel sleeve for threaded connection with the centering rod is coaxially provided in the mounting hole, a positioning hole corresponding to the positioning column is provided on the top of the threaded steel sleeve, a thread starting point of the thread of the threaded steel sleeve is located on the positioning plane where the axis of the threaded steel sleeve and the positioning column are located, a threaded directional hole is radially opened on the outer wall of the centering rod, the axis of the threaded directional hole is located on the positioning plane, and the threaded directional hole is arranged toward the back side of the RTK host.

2. The RTK measurement device according to claim 1, characterized in that: The RTK host comprises a base and an upper cover, the base is provided with the mounting hole, and insert injection molding is adopted between the base and the threaded steel sleeve.

3. The RTK measurement device according to claim 2, characterized in that: An annular limiting portion is provided on the outer wall of the screw thread steel sleeve, an annular boss is provided on the bottom of the screw thread steel sleeve, and a limiting groove is provided on the top of the annular boss.

4. The RTK measurement device according to claim 2, characterized in that: A mounting seat is provided inside the RTK host, and the mounting seat is located between the base and the upper cover. The upper cover separates the base and the upper cover to form a first cavity and a second cavity, and a power supply is provided in the first cavity.

5. The RTK measurement device according to claim 1, characterized in that: The centering rod is provided with a clamping assembly for fixing the control hand controller.

6. The RTK measurement device according to claim 1, characterized in that: The top end of the centering rod is provided with a threaded connection section corresponding to the threaded steel sleeve.

7. The RTK measurement device according to claim 1, characterized in that: The distance between the positioning column and the axis of the threaded steel sleeve is greater than or equal to 4 mm.

8. The RTK measurement device according to claim 1, characterized in that: The machining error range of the positioning column is between -0.1mm and 0.1mm.

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