A fixed device for a steel tape and steel wire for coordinate transfer of a cantilevered shaft and a transfer method thereof

Abstract

The present invention relates to the technical field of surveying engineering, and particularly relates to a fixing device for a steel tape and a steel wire for coordinate transfer of a cantilevered shaft and a transfer method thereof. The device includes an installation mechanism and at least one cantilever mechanism; the cantilever mechanism includes a fixing seat and a connecting plate connected to the fixing seat, and the fixing seat is used for being fixed to the edge of the shaft; the installation mechanism includes a bottom disc and a fastening seat, the fastening seat is arranged above the bottom disc, a gap is provided between the fastening seat and the bottom disc, and the connecting plate is connected to the bottom disc; the bottom disc is provided with avoidance holes for the steel tape and the steel wire to pass through; the fastening seat is provided with clamping slits for installing the steel tape or the steel wire, and fastening components are arranged on the side wall of the fastening seat, and the fastening components are used for restricting the movement of the steel tape or the steel wire in the clamping slits. The operation of this device is simple and convenient, the measurement result is more accurate, and the observation operation of the steel wire and the steel tape is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of surveying engineering, and particularly to a fixing device for a steel tape and a steel wire for coordinate transfer of a cantilevered shaft and a transfer method thereof. Background Art

[0002] When conducting coordinate transfer of shaft connection surveying, it is necessary to erect a steel tape and a steel wire above the shaft respectively. The elevation coordinate of the shaft is transferred through the steel tape, and the horizontal coordinate of the shaft is transferred through the steel wire.

[0003] The existing method is to erect a steel pipe above the shaft opening and fix the steel wire and the steel tape on the steel pipe for measurement. This method requires a large number of heavy objects such as sandbags to fix the steel pipe, the operation is cumbersome, and the fixation of the steel wire and the steel tape is not firm. During the measurement process, the steel wire or the steel tape is prone to deviation, thus affecting the accuracy of the measurement result.

[0004] Therefore, at present, a technical solution is needed to solve the technical problems of cumbersome operation in shaft coordinate transfer measurement, insecure fixation of the steel wire and the steel tape, and affecting the accuracy of shaft coordinate transfer. Summary of the Invention

[0005] The purpose of the present invention is to provide a fixing device for a steel tape and a steel wire for coordinate transfer of a cantilevered shaft and a transfer method thereof, aiming at the technical problems of cumbersome operation in shaft coordinate transfer measurement, insecure fixation of the steel wire and the steel tape, and affecting the accuracy of shaft coordinate transfer.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A fixing device for a steel tape and a steel wire for coordinate transfer of a cantilevered shaft includes an installation mechanism and at least one cantilever mechanism;

[0008] The cantilever mechanism: includes a fixed seat and a connecting plate connected to the fixed seat, and the fixed seat is used for fixing to the edge of the shaft;

[0009] The installation mechanism: includes a bottom disc and a fastening seat. The fastening seat is arranged above the bottom disc, and there is a gap between the fastening seat and the bottom disc. The connecting plate is connected to the bottom disc;

[0010] The bottom disc: The bottom disc is provided with avoidance holes for the steel tape and the steel wire to pass through;

[0011] The fastening seat: The fastening seat is provided with a clamping slot for installing the steel tape or the steel wire, and a fastening member is arranged on the side wall of the fastening seat. The fastening member is used to limit the movement of the steel tape or the steel wire in the clamping slot.

[0012] A fixed device for steel tape and steel wire coordinate transfer of a cantilevered shaft in the present invention. When in use, the fixed seat is fixed to the shaft, the bottom disc is extended above the shaft through the connecting plate, and at the same time, the fastening seat is located above the bottom disc. A steel tape or a steel wire is installed in the clamping slot of the fastening seat, and the steel tape or the steel wire is fixed through the fastening component, and then the elevation coordinate and the plane coordinate of the shaft are measured through the steel tape and the steel wire. The device can fix the fixed seat to the edge of the shaft through heavy objects, bolts, etc. to realize the installation of the whole device. By arranging a clamping slot on the fastening seat, it is convenient to fix the steel tape or the steel wire. The connecting plate supports the bottom disc and the fastening seat to a suspended position above the shaft, avoiding interference between the steel tape or the steel wire and the shaft structure during the measurement process. A certain gap is arranged between the fastening seat and the bottom disc, facilitating the measurement instrument in the shaft to observe the steel wire or the steel tape.

[0013] As a preferred embodiment of the present invention, the clamping slot penetrates through the side wall of the fastening seat. By arranging a clamping slot penetrating through its side wall on the fastening seat, it is convenient for the steel tape and the steel wire to be clamped into the clamping slot from the side wall of the fastening seat, making the installation operation of the steel tape and the steel wire more convenient. The steel tape or the steel wire entering the clamping slot is fixed through the fastening component, and finally the installation and positioning of the steel tape or the steel wire above the bottom disc are realized.

[0014] As a preferred embodiment of the present invention, the fastening component is a fastening bolt, and a threaded hole communicating with the clamping slot is arranged on the side wall of the fastening seat, and the fastening bolt is used to be installed into the threaded hole. By screwing the fastening bolt in the threaded hole, the fastening bolt is tightened against the side wall of the steel tape or the steel wire, thereby realizing the fixation of the steel tape or the steel wire in the clamping slot.

[0015] As a preferred embodiment of the present invention, at least two limiting slots are arranged on the upper end wall of the fastening seat, the width of the limiting slot is adapted to the diameter of the steel wire, and the limiting slot communicates with the clamping slot. Since two steel wires need to be hung for each transfer of the plane coordinate, at least two limiting slots are arranged on the fastening seat, so that the installation of the two steel wires can be limited through the limiting slots, reducing the possible small displacement of the steel wire during the measurement process and improving the accuracy of the plane coordinate measurement.

[0016] As a preferred embodiment of the present invention, the number of the limiting slots is at least three. It is convenient to switch the installation position of the steel wire during the measurement of the plane coordinate, so as to facilitate the multiple measurements of the plane coordinate and improve the accuracy of the measurement result of the plane coordinate.

[0017] As a preferred embodiment of the present invention, the installation mechanism further includes a top disc, a support rod is connected between the bottom disc and the top disc, a through hole corresponding to the avoidance hole is arranged on the top disc, and the fastening seat is detachably connected to the through hole. By arranging a top disc above the bottom disc, it is convenient to install the fastening seat, and it is also convenient to install the steel wire and the steel tape on the fastening seat.

[0018] As a preferred embodiment of the present invention, the top disc is provided with a plurality of connection holes adapted to the support rods. One end of the support rod connected to the top disc is provided with a leveling fitting. The leveling fitting includes two fastening nuts sleeved on the support rod, and the two fastening nuts are arranged on both sides of the top disc. After the fixing base is installed on the ground, due to the uneven installation surface, the bottom disc may be inclined to a certain extent, and then the steel ruler may be inclined after installation, which will cause the position of the steel ruler to deflect under the action of gravity. Since this small deflection is not easily detected during the measurement process, it is likely to cause a large error in the vertical shaft elevation transfer. Therefore, in this solution, the support rod is connected to the top disc through the leveling fitting. After the position of the fixing base is fixed, the top disc can be leveled through the leveling fitting, and with the help of auxiliary devices such as a level and a spirit level, finally ensure that the top disc is in a horizontal state, reducing the deflection of the steel ruler under the action of gravity after installation.

[0019] As a preferred embodiment of the present invention, the fixing base is provided with a plurality of bolt holes, and expansion bolts are arranged in the bolt holes. Fixing the fixing base and the edge of the vertical shaft through the expansion bolts is simple in operation and more stable in fixing.

[0020] As a preferred embodiment of the present invention, the fixing base is provided with a coil fixing rod. The steel wire coil is fixed and stored through the coil fixing rod.

[0021] A cantilever type vertical shaft coordinate transfer method includes the following steps:

[0022] S1: Fix the fixing base to the edge of the vertical shaft, and cantilever the bottom disc above the vertical shaft through the connecting plate;

[0023] S2: Pass the zero scale end of the steel ruler through the through hole on the top disc and the avoidance hole on the bottom disc in sequence, and place the zero scale end of the steel ruler in the vertical shaft at a position that meets the observation requirements;

[0024] S3: Clamp the part of the steel ruler above the top disc into the slot of the fastening seat, fix the steel ruler through the fastening component, place the fastening seat at the through hole of the top disc, and rotate the fastening seat to make the front of the steel ruler face the observation direction;

[0025] S4: Hang a heavy object at the zero scale end of the steel ruler, conduct vertical shaft elevation transfer observation after ensuring the stability of the ruler body, and then take out the steel ruler;

[0026] S5: Pass the steel wire through the through hole of the top disc and the avoidance hole on the bottom disc in sequence, and place the lower end of the steel wire in the vertical shaft at a height that meets the observation requirements;

[0027] S6: Clamp the part of the steel wire above the top disc into the clamping slot of the fastening seat. The part of the steel wire extending out of the top disc is embedded into the limiting slot, and the steel wire is fixed by the fastening component. At the position between the bottom disc and the top disc of the steel wire, attach a total station measurement reflection sticker.

[0028] S7: Hang a heavy object at the lower end of the steel wire. After ensuring the stability of the steel wire, conduct shaft plane coordinate transfer observation.

[0029] A cantilever shaft coordinate transfer method of the present invention first installs a fixing seat to support the top disc and the bottom disc above the shaft in a suspended state; then installs a steel ruler on the fastening seat to conduct shaft elevation coordinate transfer measurement; finally installs two steel wires on the fastening seat to conduct shaft plane coordinate transfer measurement. This method is easy to operate, the steel wire and the steel ruler are fixed more firmly during the measurement process, improving the accuracy of the measurement results; connect the top disc above the bottom disc so that the steel wire and the steel wire have a suspended part exposed outside the shaft before entering the shaft, facilitating the measurement equipment beside the shaft to observe the steel ruler and the steel wire.

[0030] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0031] 1. The installation of the entire device can be achieved by fixing the fixing seat to the edge of the shaft. The operation is simple and the installation is stable.

[0032] 2. The bottom disc and the fastening seat are supported above the shaft in a suspended state by the connecting plate, avoiding interference between the steel ruler or the steel wire and the shaft structure during the measurement process.

[0033] 3. By setting a clamping slot on the fastening seat, it is convenient to fix the steel ruler or the steel wire, making the steel wire and the steel ruler fixed more firmly, reducing the possible displacement of the steel wire and the steel ruler during the measurement process, and improving the accuracy of the measurement results.

[0034] 4. Set a certain gap between the fastening seat and the bottom disc, facilitating the measurement instrument beside the shaft to observe the steel wire or the steel ruler. Description of the Drawings

[0035] Figure 1 is a schematic structural diagram of a cantilever shaft coordinate transfer steel ruler and steel wire fixing device of the present invention;

[0036] Figure 2 is an enlarged view of the installation mechanism of the present invention;

[0037] Figure 3 is an enlarged view of the bottom disc of the present invention;

[0038] Figure 4 is an enlarged view of the top disc of the present invention;

[0039] Figure 5 is an enlarged view of the fastening seat described in the present invention;

[0040] Figure 6 is a use state diagram of the elevation transfer of a steel tape wire fixing device for coordinate transfer of a cantilevered shaft in the present invention;

[0041] Figure 7 is a use state diagram of the plane transfer of a steel tape wire fixing device for coordinate transfer of a cantilevered shaft in the present invention;

[0042] Markings in the figure: 1 - mounting mechanism, 11 - bottom disc, 111 - avoidance hole, 12 - fastening seat, 121 - clamping slot, 122 - threaded hole, 123 - fastening bolt, 124 - limiting groove, 13 - top disc, 131 - through hole, 132 - connection hole, 133 - countersunk head hole groove, 14 - support rod, 2 - cantilever mechanism, 21 - fixing seat, 211 - bolt hole, 212 - coil fixing rod, 22 - connecting plate, 3 - leveling fitting, 31 - fastening nut, 4 - steel tape, 5 - wire. Detailed implementation manners

[0043] The present invention will be described in detail below with reference to the accompanying drawings.

[0044] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] Embodiment 1

[0046] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, a steel tape wire fixing device for coordinate transfer of a cantilevered shaft in this embodiment includes a mounting mechanism 1 and at least one cantilever mechanism 2, wherein the number of the cantilever mechanisms 2 can be one or multiple. When there are multiple cantilever mechanisms 2, the multiple cantilever mechanisms 2 are uniformly arranged around the mounting mechanism 1;

[0047] Cantilever mechanism 2: includes a fixing seat 21 and a connecting plate 22 connected to the fixing seat 21. The fixing seat 22 is used to be fixed to the edge of the shaft, and the fixing seat 21 is arranged in a disc shape;

[0048] Installation mechanism 1: It includes a bottom disc 11 and a fastening seat 12. The bottom disc 11 is set in a disc shape, and the fastening seat 12 is set in a cylindrical shape. The fastening seat 12 is arranged above the bottom disc 11, and there is a gap between the fastening seat 12 and the bottom disc 11. The connecting plate 22 is connected to the bottom disc 11;

[0049] Bottom disc 11: The bottom disc 11 is provided with a relief hole 111 for a steel ruler 4 and a steel wire 5 to pass through;

[0050] Fastening seat 12: The fastening seat 12 is provided with a clamping slot 121 for installing the steel ruler 4 or the steel wire 5. The side wall of the fastening seat 12 is provided with a fastening component, and the fastening component is used to limit the movement of the steel ruler 4 or the steel wire 5 in the clamping slot 121.

[0051] During use, the fixing seat 21 is fixed to the shaft. The bottom disc 11 is extended above the shaft through the connecting plate 22. At the same time, the fastening seat 12 is located above the bottom disc 11. The steel ruler 4 or the steel wire 5 is installed in the clamping slot 121 of the fastening seat 12, and the steel ruler 4 or the steel wire 5 is fixed through the fastening component. Furthermore, the elevation coordinate and plane coordinate of the shaft are transmitted and measured through the steel ruler 4 and the steel wire 5. This device can fix the fixing seat 21 to the edge of the shaft through heavy objects, bolts, etc. to complete the installation of the entire device. By providing the clamping slot 121 on the fastening seat 12, it is convenient to fix the steel ruler 4 or the steel wire 5. The connecting plate 22 supports the bottom disc 11 and the fastening seat 12 above the shaft in a suspended state, avoiding interference between the steel ruler 4 or the steel wire 5 and the shaft structure during the measurement process. A certain gap is provided between the fastening seat 12 and the bottom disc 11, facilitating the measurement instrument in the shaft to observe the steel wire 5 or the steel ruler 4.

[0052] Furthermore, the clamping slot 121 penetrates through the side wall of the fastening seat 12. By providing the clamping slot 121 that penetrates through its side wall on the fastening seat 12, it is convenient for the steel ruler 4 and the steel wire 5 to be clamped into the clamping slot 121 from the side wall of the fastening seat 12, making the installation operation of the steel ruler 4 and the steel wire 5 more convenient. The steel ruler 4 or the steel wire 5 that enters the clamping slot 121 is fixed through the fastening component, finally realizing the installation and positioning of the steel ruler 4 or the steel wire 5 above the bottom disc 11.

[0053] Specifically, the fastening component is a fastening bolt 123. The side wall of the fastening seat 12 is provided with a threaded hole 122 communicating with the clamping slot 121. The fastening bolt 123 is used to be installed in the threaded hole 122. By tightening the fastening bolt 123 in the threaded hole 122, the fastening bolt 123 abuts against the side wall of the steel ruler 4 or the steel wire 5, thereby realizing the fixation of the steel ruler 4 or the steel wire 5 in the clamping slot 121.

[0054] Further, at least two limiting grooves 124 are provided on the upper end wall of the fastening seat 12. The width of the limiting groove 124 is adapted to the diameter of the steel wire 5. The limiting groove 124 communicates with the clamping slot 121. Since two steel wires 5 need to be hung for each transfer of the plane coordinates, at least two limiting grooves 124 are provided on the fastening seat 12, so that the installation of the two steel wires 5 can be limited through the limiting grooves 124, reducing the possible small displacement of the steel wire 5 during the measurement process and improving the accuracy of the plane coordinate measurement.

[0055] Specifically, the installation mechanism 1 further includes a top disc 13. The top disc 13 is coaxially arranged with the bottom disc 11. A support rod 14 is connected between the bottom disc 11 and the top disc 13. The top disc 13 is provided with a through hole 131 corresponding to the avoidance hole 111. The through hole 131 is coaxially arranged with the avoidance hole 111. The fastening seat 12 is detachably connected to the through hole 131. By arranging the top disc 13 above the bottom disc 11, it is convenient to install the fastening seat 12, and at the same time, it is also convenient to install the steel wire 5 and the steel ruler 4 on the fastening seat 12; more specifically, a counterbore 133 is provided at the upper end of the through hole 131, and the counterbore 133 is threadedly connected to the fastening seat 12.

[0056] Specifically, the fixing seat 21 is provided with a plurality of bolt holes 211, and expansion bolts are arranged in the bolt holes 211. The fixing seat 12 is fixed to the edge of the shaft through the expansion bolts, which is simple to operate and more stable in fixing.

[0057] Further, the fixing seat 12 is provided with a coil fixing rod 212 to fix and store the coil of the steel wire 5 through the coil fixing rod 212.

[0058] Embodiment 2

[0059] As Figure 1 、 Figure 2 and Figure 5 shown, in this embodiment, the difference from Embodiment 1 is that the number of the limiting grooves 124 is at least three.

[0060] In this embodiment, three or more than three limiting grooves 124 are provided on the end face of the fastening seat 12, which is convenient for switching the installation positions of the steel wires during the plane coordinate measurement, so as to facilitate multiple measurements of the plane coordinates and improve the accuracy of the plane coordinate measurement results.

[0061] Embodiment 3

[0062] As Figure 1 、 Figure 2 and Figure 3As shown in the figure, in this embodiment, the difference from Embodiment 1 is that the number of the support rods 14 is three, and the three support rods 14 are evenly arranged around the top disc 13. The top disc 13 is provided with a number of connection holes 132 adapted to the support rods 14. One end of the support rod 14 connected to the top disc 13 is provided with a leveling fitting 3. The leveling fitting 3 includes two fastening nuts 31. The fastening nuts 31 are sleeved on the support rod 14, and the two fastening nuts 31 are arranged on both sides of the top disc 13.

[0063] In this embodiment, after the fixed seat 21 is installed on the ground, due to the uneven installation surface, the bottom disc 11 may be inclined to a certain extent, and then the steel ruler 4 may be inclined after installation. This will cause the position of the steel ruler 4 to deflect under the action of gravity. Since this small deflection is not easily detected during the measurement process, it is likely to cause a large error in the vertical shaft elevation transfer. Therefore, in this solution, the support rod 14 is connected to the top disc 13 through the leveling fitting 3. After the position of the fixed seat 21 is fixed, the top disc 13 can be leveled through the leveling fitting 3. By using auxiliary devices such as a level and a spirit level, or directly installing a spirit level on the top disc 13, it is finally determined that the top disc 13 is in a horizontal state.

[0064] Embodiment 4

[0065] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 shown, this embodiment provides a method for transferring the coordinates of a cantilevered vertical shaft. The method uses a fixing device for a steel ruler and a steel wire for transferring the coordinates of a cantilevered vertical shaft as described in any one of Embodiments 1-3 to transfer the coordinates of the vertical shaft, and includes the following steps:

[0066] S1: Fix the fixed seat 21 to the edge of the vertical shaft, and cantilever the bottom disc 11 above the vertical shaft through the connecting plate 22;

[0067] S2: Pass the zero scale end of the steel ruler 4 through the through hole 131 on the top disc 13 and the avoidance hole 111 on the bottom disc 11 in sequence, and place the zero scale end of the steel ruler 4 into the vertical shaft at a position that meets the observation requirements;

[0068] S3: Clamp the part of the steel ruler 4 above the top disc 13 into the slot 121 of the fastening seat 12, fix the steel ruler 4 through the fastening member, place the fastening seat 12 at the through hole 131 of the top disc 13, and rotate the fastening seat 12 to align the front of the steel ruler 4 with the observation direction;

[0069] S4: Hang a heavy object at the zero scale end of the steel ruler 4. After ensuring the stability of the ruler body, conduct the vertical shaft elevation transfer observation, and then take out the steel ruler 4;

[0070] S5: Pass the steel wire 5 through the through hole 131 of the top disc 13 and the avoidance hole 111 on the bottom disc 11 in sequence, and lower the lower end of the steel wire 5 into the vertical shaft to a height that meets the observation requirements;

[0071] S6: Clamp the parts of the two steel wires 5 above the top disc 13 into the clamping slot 121 of the fastening seat 12. The parts of the steel wires 5 extending out of the top disc 13 are embedded into the limiting slots 124, and the coils of the steel wires 5 are sleeved on the coil fixing rods 212 on the fixing seat 21. Fix the steel wires 5 through the fastening components. Rotate the fastening seat 12 to align the limiting slots 124 with the coil fixing rods 212, and paste total station measurement reflection stickers at the positions of the steel wires 5 between the bottom disc 11 and the top disc 13;

[0072] S7: Hang a heavy object at the lower end of the steel wire 5. After ensuring the stability of the steel wire 5, conduct the vertical shaft plane coordinate transfer observation.

[0073] S8: Loosen the fastening components, switch the position of the steel wire 5, change the steel wire 5 into different limiting slots 124, and then conduct the vertical shaft coordinate transfer observation. Take the average value of the plane coordinate measurement results through multiple measurements to reduce the measurement error.

[0074] A cantilever type vertical shaft coordinate transfer method in this embodiment first installs the fixing seat 21 to support the top disc 13 and the bottom disc 11 above the vertical shaft in a suspended state; then installs the steel ruler 4 on the fastening seat 12 to conduct the measurement of the vertical shaft elevation coordinate transfer; finally installs two steel wires 5 on the fastening seat 12 to conduct the measurement of the vertical shaft plane coordinate transfer; this method is easy to operate, the steel wires 5 and the steel ruler 4 are fixed more firmly during the measurement process, improving the accuracy of the measurement results; connect the top disc 13 above the bottom disc 11 to make the steel wires 5 and the steel wire 4 have suspended parts exposed outside the vertical shaft before entering the vertical shaft, facilitating the observation of the steel ruler 4 and the steel wires 5 by the measuring equipment beside the vertical shaft.

[0075] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fixed device for a steel tape and steel wire of coordinate transfer of a cantilever shaft, characterized in that It includes an installation mechanism (1) and at least one cantilever mechanism (2); Cantilever mechanism (2): It includes a fixed seat (21) and a connecting plate (22) connected to the fixed seat (21), and the fixed seat (21) is used for fixing to the edge of the shaft; Installation mechanism (1): It includes a bottom disc (11) and a fastening seat (12), the fastening seat (12) is arranged above the bottom disc (11), there is a gap between the fastening seat (12) and the bottom disc (11), the connecting plate (22) is connected to the bottom disc (11), the installation mechanism (1) further includes a top disc (13), a support rod (14) is connected between the bottom disc (11) and the top disc (13), the top disc (13) is provided with a through hole (131) corresponding to the avoidance hole (111), and the fastening seat (12) is detachably connected to the through hole (131); Bottom disc (11): The bottom disc (11) is provided with an avoidance hole (111) for a steel tape (4) and a steel wire (5) to pass through; Fastening seat (12): The fastening seat (12) is provided with a clamping slot (121) for installing the steel tape (4) or the steel wire (5), and a fastening component is arranged on the side wall of the fastening seat (12), and the fastening component is used to limit the movement of the steel tape (4) or the steel wire (5) in the clamping slot (121); Using the above-mentioned cantilever type shaft coordinate transfer steel tape and steel wire fixing device, the following steps are included: S1: Fix the fixed seat (21) to the edge of the shaft, and cantilever the bottom disc (11) above the shaft through the connecting plate (22); S2: Pass the zero scale end of the steel tape (4) through the through hole (131) on the top disc (13) and the avoidance hole (111) on the bottom disc (11) in sequence, and place the zero scale end of the steel tape (4) into the shaft to a position that meets the observation requirements; S3: Clamp the part of the steel tape (4) above the top disc (13) into the clamping slot (121) of the fastening seat (12), fix the steel tape (4) through the fastening component, place the fastening seat (12) at the through hole (131) of the top disc (13), and rotate the fastening seat (12) to make the front of the steel tape (4) face the observation direction; S4: Hang a heavy object at the zero scale end of the steel tape (4), conduct shaft elevation transfer observation after determining that the tape body is stable, and then take out the steel tape (4); S5: Pass the steel wire (5) through the through hole (131) of the top disc (13) and the avoidance hole (111) on the bottom disc (11) in sequence, and place the lower end of the steel wire (5) into the shaft to a height that meets the observation requirements; S6: Clamp the part of the steel wire (5) above the top disc (13) into the clamping slot (121) of the fastening seat (12), embed the part of the steel wire (5) extending out of the top disc (13) into the limiting slot (124), fix the steel wire (5) through the fastening component, and stick a total station measurement reflection sticker at the position between the bottom disc (11) and the top disc (13) of the steel wire (5); S7: Hang a heavy object at the lower end of the steel wire (5), and conduct shaft plane coordinate transfer observation after determining that the steel wire (5) is stable.

2. The steel tape and wire fixing device for coordinate transfer of the cantilever shaft according to claim 1, characterized in that The card slot (121) penetrates through the side wall of the fastening seat (12).

3. The steel tape and wire fixing device for coordinate transfer of the cantilever shaft according to claim 1, wherein The fastening member is a fastening bolt (123), a threaded hole (122) communicating with the card slot (121) is provided on the side wall of the fastening seat (12), and the fastening bolt (123) is used to be installed into the threaded hole (122).

4. The steel tape and wire fixing device for coordinate transfer of the cantilevered shaft according to claim 1, characterized in that, At least two limiting grooves (124) are provided on the upper end wall of the fastening seat (12), the width of the limiting groove (124) is adapted to the diameter of the steel wire (5), and the limiting groove (124) communicates with the card slot (121).

5. The fixed device for the steel tape and steel wire of coordinate transfer of the cantilever shaft according to claim 4, characterized in that, The number of the limiting grooves (124) is at least three.

6. The fixed device for the steel tape and steel wire of the coordinate transfer of the cantilevered shaft according to claim 1, wherein The top disc (13) is provided with a plurality of connection holes (132) adapted to the support rod (14). One end of the support rod (14) connected to the top disc (13) is provided with a leveling fitting (3). The leveling fitting (3) includes two fastening nuts (31). The fastening nuts (31) are sleeved on the support rod (14), and the two fastening nuts (31) are arranged on both sides of the top disc (13).

7. The steel tape and wire fixing device for coordinate transfer of the cantilevered shaft according to claim 1, wherein The fixing seat (21) is provided with a plurality of bolt holes (211), and expansion bolts are arranged in the bolt holes (211).

8. The steel tape and wire fixing device for coordinate transfer of the cantilever shaft according to claim 1, characterized in that, The fixing seat (211) is provided with a coil fixing rod (212).

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