Auxiliary positioning device for measuring blasthole coordinates by applying RTK (Real-Time Kinematic) technology

Abstract

The utility model discloses an auxiliary positioning device for measuring coordinates of a blast hole by using an RTK (Real-Time Kinematic) technology. The auxiliary positioning device comprises a GPS (Global Positioning System) receiver, a combined sleeve and a rope lifting mechanism, a structure extending into a blast hole is in one-by-one front-and-back spiral connection, and the number of the connecting sleeves can be selected according to the actually needed extending length; the bottom sleeve and the connecting sleeve are connected to form a combined sleeve and then move synchronously, rapid operation is facilitated through transmission of the movable pulley and the rope lifting mechanism and stretching operation of pulling the combined sleeve, and coordinate measurement of the lowest position of a blast hole can be rapidly conducted by recording the length of the connecting sleeve. The combined sleeve, the rope lifting mechanism and the GPS receiver are all of a structure capable of being rapidly disassembled and assembled. The whole device can be rapidly disassembled, assembled, stored, stored and carried.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering surveying, and particularly relates to an auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology. Background Technique

[0002] RTK (Real-Time Kinematic) is a real-time carrier phase differential technology, which can provide centimeter-level or even millimeter-level positioning accuracy in real time. RTK technology is a real-time dynamic positioning technology based on carrier phase observations. It can provide the three-dimensional positioning results of the measuring station in the specified coordinate system in real time and reach centimeter-level accuracy.

[0003] The working principle of RTK technology is to use two or more GPS receivers (called reference station and rover) to receive satellite signals simultaneously, and eliminate the influence of satellite orbit errors, satellite clock errors, receiver clock errors, and ionosphere and troposphere on signal propagation through differential positioning technology, so as to obtain high-precision positioning results.

[0004] RTK technology is widely used in various occasions that require high-precision positioning, such as surveying, UAV navigation, autonomous driving, precision agriculture, etc. In the field of surveying, RTK technology is used for topographic surveying, engineering layout, control surveying, etc.; in the fields of UAV and autonomous driving, RTK technology is used to achieve high-precision navigation and positioning; in the field of precision agriculture, RTK technology is used to achieve precision seeding, fertilization and harvesting, etc. When using RTK technology, it is necessary to ensure smooth communication between the reference station and the rover to transmit differential data in real time. In addition, factors such as the location selection of the reference station, antenna setting, and data processing also need to be noted to ensure the accuracy and reliability of the positioning results.

[0005] During the open-pit mine blasting process, parameters such as the position, depth, and inclination angle of the blast holes are important parameters affecting the blasting effect. In order to check whether the drilled blast holes meet the requirements of the blasting design, it is necessary to measure the blast holes. Currently, the commonly used real-time kinematic RTK measurement technology only needs to place the GPS receiver on the point to be measured to obtain the coordinates of the point to be measured.

[0006] In the prior art, the maximum length of the handheld rod used in conjunction with the GPS receiver is only 2.0 m, and it is impossible to measure the bottom coordinates of blast holes with a depth of 8 - 15 m for deep-hole blasting, and it is impossible to measure the bottom coordinates of deeper blast holes.

[0007] Therefore, it is necessary to provide an auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology to solve the problem in traditional RTK measurement that the bottom coordinates of deeper blast holes cannot be measured due to the too short handheld rod, and it is applicable to the measurement inside the blast holes during open-pit mine blasting. Summary of the Utility Model

[0008] To solve the above technical problems, the present utility model provides an auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology. This auxiliary positioning rod device has a main structure of a combined sleeve that can be flexibly adjusted and its length recorded through portable mechanical combination. The combined sleeve falls into the blast hole by its own gravity and is lifted and lowered by the pulling of the rope lifting mechanism, which can assist in positioning the coordinates of the blast hole;

[0009] To achieve the above technical objectives, the present utility model is realized through the following technical solutions:

[0010] An auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology, comprising: a GPS receiver, a combined sleeve, and a rope lifting mechanism;

[0011] The combined sleeve includes a bottom sleeve and several connecting sleeves. The bottom sleeve is located at the bottom, and its bottom end is an extending part with a conical structure; several connecting sleeves are fixedly connected in sequence upward from the top end of the bottom sleeve; the GPS receiver is fixedly installed at the top end of the topmost connecting sleeve; a movable pulley is fixedly installed inside the bottom sleeve.

[0012] The rope lifting mechanism includes a base, a rope, a rope winder, and a rotary driving member; the rotary driving member outputs a two-way rotary motion of forward and reverse rotation, driving the rope winder to rotate forward and reverse; the rope is wound around the rope winder, and its winding or unwinding from the rope winder is driven by the rotation of the rope winder; the end of the rope extending out of the rope winder is sleeved on the movable pulley, and through the transmission of the movable pulley, the bottom sleeve is pulled to move.

[0013] Further, the vertex of the conical structure of the extending part is located at the bottom end of the bottom sleeve;

[0014] Further, the bottom sleeve is a cylindrical structure with a straight axis and an equal outer diameter, and an external thread is fixedly connected to its top end; the connecting sleeve is a cylindrical structure with a straight axis and an equal outer diameter, and an internal thread and an external thread are respectively fixedly connected to its upper and lower ends; the external thread and the internal thread are spirally connected, and through the spiral connection relationship between the external thread and the internal thread, several connecting sleeves and the bottom sleeve are connected in sequence.

[0015] Further, the diameter of the external thread is smaller than the diameter of the bottom sleeve or the connecting sleeve;

[0016] Further, the movable pulley is located at the top inside the bottom sleeve;

[0017] Further, a rope groove extending along the axial direction thereof is formed inside the connecting sleeve, and the rope penetrates into the connecting sleeve and the bottom sleeve through the rope groove;

[0018] Further, the GPS receiver is a GNSS / INS high-precision module with an built-in inertial measurement unit;

[0019] The beneficial effects of the present utility model are:

[0020] An auxiliary positioning device for measuring the coordinates of a blast hole by applying RTK technology provided by the present utility model, compared with the traditional positioning auxiliary device with a fixed length or telescopic structure, the structure extending into the blast hole adopts a way of connecting one by one in a front-back spiral manner, and the number of the connecting sleeves can be selected according to the actually required extension length;

[0021] After the bottom sleeve and the connecting sleeve are connected into a combined sleeve, they move synchronously, and through the transmission of the movable pulley and the rope lifting mechanism, the extension operation of the combined sleeve is pulled, which is convenient for quick operation, and the coordinates of the lowest part of the blast hole can be quickly measured by recording the length of the connecting sleeve.

[0022] The combined sleeve, the rope lifting mechanism, and the GPS receiver are all structures that can be quickly disassembled and assembled, which is convenient for the overall quick disassembly, storage, preservation and carrying of the device of the present utility model. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 is a schematic structural diagram of the present utility model for actually measuring the depth of a blast hole;

[0025] Figure 2 is a front view of the present utility model for actually measuring the depth of a blast hole;

[0026] Figure 3 is a schematic cross-sectional view of the internal structure of the present utility model for actually measuring the depth of a blast hole;

[0027] Figure 4 is Figure 3 a partially enlarged schematic structural diagram of part A in;

[0028] Figure 5 is an exploded structural diagram of the combined sleeve of the present utility model;

[0029] Figure 6 It is a schematic internal sectional view of the explosion structure of the combined sleeve of the present utility model;

[0030] Figure 7 It is a schematic structural view of the rope traction state of the present utility model;

[0031] Figure 8 It is a schematic structural view of the rope traction state of the present utility model;

[0032] In the drawings, the list of components represented by each reference numeral is as follows:

[0033] 1 - GPS receiver, 2 - combined sleeve, 201 - bottom sleeve, 202 - connecting sleeve, 203 - extending part, 204 - movable pulley, 205 - external thread, 206 - internal thread, 207 - rope groove, 3 - rope lifting mechanism, 301 - rope, 302 - rope winder, 303 - rotary driving member, 304 - base, 4 - ground, 401 - blast hole. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0035] Please refer to Figures 1-8 , in this embodiment, an auxiliary positioning device for measuring the coordinates of blast holes using RTK technology includes: a GPS receiver 1, a combined sleeve 2, and a rope lifting mechanism 3; the above components are combined into an integral device through linkage and respectively undertake corresponding functions. The GPS receiver 1 is used to receive GPS information, the combined sleeve 2 is used to measure the coordinates of the lowest point of the blast hole, and the rope lifting mechanism 3 winds the rope and controls the winding and unwinding of the rope to pull the bottom sleeve 201;

[0036] In this embodiment, the combined sleeve 2 includes a bottom sleeve 201 and a plurality of connecting sleeves 202. The bottom sleeve 201 is located at the bottom, and its bottom end is an extending portion 203 with a conical structure; the plurality of connecting sleeves 202 are fixedly connected in sequence upward from the top end of the bottom sleeve 201; the GPS receiver 1 is fixedly installed at the top end of the topmost connecting sleeve 202; a movable pulley 204 is fixedly installed inside the bottom sleeve 201; the extending portion 203 is a structure that gradually extends into the blast hole from the opening position of the blast hole, so it has a conical structure, and when in use, the tip is downward and it extends into the blast hole from top to bottom; a plurality of the GPS receivers are installed at the top end of the combined sleeve 2;

[0037] In this embodiment, the rope lifting mechanism 3 includes a base 3, a rope, a rope winder 302 and a rotary driving member 303; the rotary driving member 303 outputs a two-way rotary motion of forward and reverse rotation to drive the rope winder 302 to rotate forward and reverse; the rope is wound around the rope winder 302, and is driven by the rotation of the rope winder 302 to wind around or unwind from the rope winder 302; the end of the rope extending out of the rope winder 302 is sleeved on the movable pulley 204, and through the transmission of the movable pulley 204, the bottom sleeve 201 is pulled to move; since the relative positions of the bottom sleeve 201 and the connecting sleeve 202 in the combined sleeve 2 are fixed after connection, they move synchronously under the drive of the rope through the movable pulley 204; the specific selection form of the rotary drive is a mature technology in the prior art, and those skilled in the art can select its specific form according to the functional requirements of its output two-way rotary motion and actual conditions, such as directly using a motor, or using a hand crank set, etc., and its function is to drive the rope winder 302 to rotate, wind the rope on the rope winder 302 or unwind the rope from the rope winder 302; in this embodiment, a hand crank is selected, similar to the structure of the starting pedal of a motorcycle engine and the suspended lifting water well, but it is not limited to only using this structure;

[0038] In this embodiment, the vertex of the conical structure of the extending portion 203 is located at the bottom end of the bottom sleeve 201;

[0039] In this embodiment, the bottom sleeve 201 is a cylindrical structure with a straight axis and an equal outer diameter, and an external thread 205 is fixedly connected to the top end; the connecting sleeve 202 is a cylindrical structure with a straight axis and an equal outer diameter, and internal threads 206 and external threads 205 are fixedly connected to the upper and lower ends respectively; the external thread 205 is in spiral connection with the internal thread 206, and through the spiral connection relationship between the external thread 205 and the internal thread 206, a plurality of the connecting sleeves 202 and the bottom sleeve 201 are connected in sequence; since generally the blast hole is a conventional smooth deep hole structure with a straight axis and an equal outer diameter, the diameter and the shape structure of the combined sleeve 2 of the present utility model should be adapted to the structure of the blast hole;

[0040] In this embodiment, the diameter of the external thread 205 is smaller than the diameter of the bottom sleeve 201 or the connecting sleeve 202; such a diameter setting is to make the outer wall surface of the combined sleeve 2 flat and smooth without a shoulder similar to a stepped shaft, which affects the smoothness of inserting the combined sleeve 2 into the blast hole;

[0041] In this embodiment, the movable pulley 204 is located at the top inside the bottom sleeve 201; the position of the movable pulley 204 is set to facilitate the end of the rope to be sleeved on the movable pulley 204;

[0042] In this embodiment, a rope groove 207 extending along its axis is formed inside the connecting sleeve 202, and the rope passes through the rope groove 207 and penetrates into the connecting sleeve 202 and the bottom sleeve 201; the rope groove 207 is a structure for the rope to penetrate;

[0043] In this embodiment, the GPS receiver is a GNSS / INS high-precision module with an built-in inertial measurement unit;

[0044] In this embodiment, the specific use process of an auxiliary positioning device for measuring the coordinates of a blast hole by applying RTK technology is as follows:

[0045] After all the components of the present utility model are assembled and installed according to the illustration and the above text description, first, the rope lifting mechanism 3 is stably fixed near the blast hole, the rope released from the rope winder 302 is sleeved on the movable pulley 204, and the end is fixedly connected to the base 3;

[0046] Slowly lower the bottom sleeve 201 and the extending part 203 into the blast hole, and observe whether the bottom sleeve 201 reaches the lowest point of the blast hole. If it does not reach, successively screw-connect the connecting sleeve 202 to the top end of the bottom sleeve 201. Thread the rope through the rope groove 207 into the combined sleeve 2, then start the rotary driving member 303 and slowly release the rope to extend the combined sleeve 2 into the blast hole. If the apex of the extending part 203 has not reached the lowest point of the blast hole, continue to connect the connecting sleeve at the top end of the connecting sleeve 202 until the apex of the extending part 203 reaches the lowest point of the blast hole. At this time, screw-mount the GPS receiver 1 on the top of the uppermost connecting sleeve 202, record the quantity and length of the connecting sleeve, and perform the coordinate measurement operation at the lowest point of the blast hole.

[0047] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology, characterized in that, Including: A GPS receiver, a combined sleeve, and a rope lifting mechanism; The combined sleeve includes a bottom sleeve and several connecting sleeves. The bottom sleeve is located at the bottom, and its bottom end is an extending part with a conical structure. Several of the connecting sleeves are fixedly connected in sequence upward from the top end of the bottom sleeve. The GPS receiver is fixedly installed at the top end of the topmost connecting sleeve. A pulley is fixedly installed inside the bottom sleeve; The rope lifting mechanism includes a base, a rope, a rope winder, and a rotary driving member. The rotary driving member outputs a two-way rotary motion of forward and reverse rotation to drive the rope winder to rotate forward and reverse. The rope is wound around the rope winder and is driven by the rotation of the rope winder to wind around or unwind from the rope winder. The end of the rope extending out of the rope winder is sleeved on the pulley, and through the transmission of the pulley, the bottom sleeve is pulled to move.

2. The auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology according to claim 1, wherein The vertex of the conical structure of the extending part is located at the bottom end of the bottom sleeve.

3. The auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology according to claim 1, characterized in that, The bottom sleeve is a cylindrical structure with a straight axis and an equal outer diameter, and an external thread is fixedly connected to the top end. The connecting sleeve is a cylindrical structure with a straight axis and an equal outer diameter, and an internal thread and an external thread are respectively fixedly connected to the upper and lower ends. The external thread is helically connected with the internal thread, and through the helical connection relationship between the external thread and the internal thread, several of the connecting sleeves and the bottom sleeve are connected in sequence.

4. The auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology according to claim 3, characterized in that, The diameter of the external thread is smaller than the diameter of the bottom sleeve or the connecting sleeve.

5. The auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology according to claim 1, characterized in that, The pulley is located at the top inside the bottom sleeve.

6. The auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology according to claim 1, characterized in that A rope groove extending along its axial direction is opened inside the connecting sleeve, and the rope passes through the rope groove and penetrates into the connecting sleeve and the bottom sleeve.

7. The auxiliary positioning device for measuring the coordinates of blast holes by applying RTK technology according to claim 1, characterized in that, The GPS receiver is a GNSS / INS high-precision module with an built-in inertial measurement unit.

Images