CN211977926U - Split type centering device for underground engineering precision conductor measurement - Google Patents
Split type centering device for underground engineering precision conductor measurement Download PDFInfo
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- CN211977926U CN211977926U CN202020987232.1U CN202020987232U CN211977926U CN 211977926 U CN211977926 U CN 211977926U CN 202020987232 U CN202020987232 U CN 202020987232U CN 211977926 U CN211977926 U CN 211977926U
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Abstract
A split type centering device for underground engineering precision wire measurement comprises an embedded part, a connecting rod and a connecting disc; the embedded part is correspondingly and vertically embedded underground, the embedding proportion of the embedded part is 90-95%, the exposed end of the embedded part is correspondingly connected with the tail end of the connecting rod, the head end face of the connecting rod is correspondingly connected with the bottom end face of the connecting disc, the top end face of the connecting disc is provided with a first stud correspondingly connected with the prism base and a protective cover used for protecting the stud.
Description
Technical Field
The utility model belongs to the technical field of the underground works technique of measuring and specifically relates to a split type centering device for underground works precision wire is measured.
Background
As is known, in the construction and production process of underground engineering (such as tunnels and mines), the measurement is like the 'eye' of construction, and plays an important role in guiding the advancing direction of construction; because the satellite signal is shielded, the GPS positioning measurement technology cannot be used in the underground engineering construction process, so that the coordinate and the direction are transmitted mainly by adopting a wire measurement method at present to ensure that the position of a construction structure is accurate, the tunneling direction is correct, and adjacent construction excavation faces are smoothly communicated; the traditional wire measurement centering and leveling steps sequentially comprise rough centering, rough leveling, precise centering and leveling, the centering and leveling operation is carried out by adopting the method, the height of a tripod and the base spiral are required to be adjusted repeatedly, so the leveling and centering operation process is complicated, and the operation time is long; moreover, because the underground lighting condition is poor, the auxiliary personnel is required to carry out lighting to assist the centering and leveling operation, so that other manpower is occupied, and the prism and the total station are required to be provided with corresponding supporting tripods, so that the physical strength consumed by carrying equipment by measuring personnel is large; in summary, there is a need in the market for a device that can save labor, reduce labor intensity of workers, improve precision wire measurement accuracy, and reduce time for precision wire measurement in underground works.
Disclosure of Invention
In order to overcome not enough among the background art, the utility model discloses a split type centering device for accurate wire measurement of underground works.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a split type centering device for underground engineering precision wire measurement comprises an embedded part, a connecting rod and a connecting disc; the embedded parts are correspondingly and vertically embedded underground, the embedding proportion of the embedded parts is 90-95%, the exposed ends of the embedded parts are correspondingly connected with the tail ends of the connecting rods, the head end surfaces of the connecting rods are correspondingly connected with the bottom end surfaces of the connecting discs, and the top end surfaces of the connecting discs are provided with first studs correspondingly connected with the prism bases and protective covers for protecting the studs;
preferably, the embedded part is formed by correspondingly and vertically welding two castings with different lengths, and is L-shaped, wherein the shorter casting is correspondingly embedded underground, and the longer casting is correspondingly and vertically arranged with the ground;
preferably, the end face of the head end of the embedded part is provided with a second stud, and the end face of the tail end of the connecting rod is provided with a screw hole correspondingly matched and connected with the stud;
preferably, the bottom end face of the connecting disc is provided with a third stud, and the head end face of the connecting rod is provided with a screw hole correspondingly matched and connected with the stud;
preferably, a plurality of through holes are uniformly distributed on the top surface of the connecting disc;
preferably, the protective cover is in threaded connection with the first stud correspondingly;
preferably, the top of the first stud is provided with an identification point;
preferably, the connecting rod is a hexahedral cylinder structure.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a split type centering device for accurate wire measurement of underground works, at first with this centering device correspondence equipment, force the centering with prism and corresponding centering device again and be connected, then twist the spiral knob on the prism base, can accomplish the centering flattening operation of prism, thereby effectively reduced the step of prism centering flattening, and then shortened the time of prism centering flattening operation, finally reach the purpose that improves accurate wire measurement efficiency, wherein force the centering precision that centering connection can effectively improve the prism, thereby improve the measurement accuracy that accurate wire measured;
in addition, the centering device is split, and has the advantages of convenient connection, concise centering and leveling steps and lighter weight compared with a tripod, only one operator is needed to adjust the prism, so that unnecessary labor is saved, the physical strength of the operator is effectively saved, after the measurement of the wire of the measuring station is completed, the connecting rod and the connecting disc in the centering device are detached, the prism base and the prism are detached and then installed on the embedded part of the next group of wire points, the next group of wire points can be measured, the device can be reused, and the waste of materials is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
FIG. 3 is another schematic diagram of the connecting disc.
In the figure: 1. embedding parts; 1.1, a second stud; 2. a connecting rod; 3. a connecting disc; 3.1, a first stud; 3.2, through holes; 3.3, a third stud; 4. a protective cover.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
The split type centering device for underground engineering precision wire measurement, which is described in conjunction with the attached drawings 1-3, comprises an embedded part 1, a connecting rod 2 and a connecting disc 3; the embedded part 1 is correspondingly and vertically embedded underground, the embedding proportion of the embedded part 1 is 90-95%, namely the top of the embedded part 1 is 2-5cm lower than the top surface of an inverted arch of the tunnel, so that the inverted arch can play a certain protection role on the embedded part 1, the embedded part 1 is formed by correspondingly and vertically welding two castings with different lengths according to needs, the embedded part 1 is in an L shape, the shorter casting is correspondingly embedded underground, and the longer casting is correspondingly and vertically arranged with the ground, so that the contact area between the embedded part 1 and the concrete can be improved, the stability of the embedded part 1 in the concrete is further improved, and the tail end is vertical to the head end of the embedded part 1, so that the rotation of the embedded part 1 can be prevented; the exposed end of the embedded part 1 is correspondingly connected with the tail end of the connecting rod 2, particularly, the connecting rod 2 is of a six-sided cylinder structure, the structure can effectively improve the stability of the connecting rod 2 when the connecting rod 2 is connected with the embedded part 1 and the connecting disc 3, the overall strength of the connecting rod 2 is improved, in addition, the end face of the head end of the embedded part 1 is provided with a second stud 1.1, the end face of the tail end of the connecting rod 2 is provided with a screw hole correspondingly matched and connected with the stud, and the stud and the corresponding screw hole are connected through threads, so that an operator can conveniently detach the stud and the corresponding screw hole; the end face of the head of the connecting rod 2 is correspondingly connected with the end face of the connecting disc 3, the end face of the connecting disc 3 is provided with a third stud 3.3 according to requirements, the end face of the head of the connecting rod 2 is provided with a screw hole correspondingly matched and connected with the stud, and the stud and the corresponding screw hole are connected through threads, so that an operator can conveniently detach the stud and the corresponding screw hole;
the top end face of the connecting disc 3 is provided with a first stud 3.1 correspondingly connected with the prism base, the prism base and the first stud 3.1 are in forced centering connection, so that the prism base can only be leveled but not centered, the steps in prism centering and leveling operation are simplified, the centering and leveling time of the prism before measurement is shortened, the precision wire measurement efficiency is improved, the centering error can also be reduced through the forced centering connection, the measurement precision in precision wire measurement is improved, in addition, a plurality of through holes 3.2 are uniformly distributed on the top end face of the connecting disc 3, the weight of the connecting disc 3 is reduced, the connecting disc 3 is convenient to carry, the top end face of the connecting disc 3 is provided with the first stud 3.1 correspondingly connected with the prism base, the top of the first stud 3.1 is provided with an identification point according to needs, and the centering device is also arranged at an observation point of a total station instrument during precision wire measurement, the total station can finish centering and leveling operation through the identification point, and the centering positions of the total station and the prism can be ensured to be consistent; the protective cover 4 is correspondingly arranged on the top end face of the connecting disc 3, and the protective cover 4 can cover the first stud 3.1 arranged on the top end face of the connecting disc 3, so that the stud is protected from being collided in the transportation process; in addition, the protective cover 4 is correspondingly in threaded connection with the first stud 3.1, so that an operator can conveniently detach the protective cover and the first stud.
When the split type centering device for underground engineering precise wire measurement is implemented, during underground engineering construction, a plurality of embedded parts 1 are embedded into the positions of wire points in the measurement engineering, when precise wire measurement is carried out, every three groups of wire points are firstly set as an operation unit, a total station is erected at the middle wire point, centering and leveling operation is carried out on the total station, meanwhile, the centering device is respectively assembled at the other two wire points, two prism bases are forcibly centered and connected with the first studs 3.1 of the corresponding centering devices, and then two prisms only need to be leveled; when the total station and the two prisms complete the centering and leveling operation, the total station can be used for observing the forward-looking prism and the backward-looking prism; after the observation of the operation unit is finished, the prism, the connecting rod 2 and the connecting disc 3 are detached, and then the embedded part 1 of the next operation unit is taken to be assembled, so that three groups of lead points of the next operation unit can be observed; it should be noted that by arranging the identification point on the top surface of the first stud 3.1, the centering device can also be used for centering and leveling of the total station, so that the consistency of the centering positions of the total station and the prism is ensured.
The part of the utility model not detailed is prior art.
Claims (7)
1. The utility model provides a split type centering device for accurate wire measurement of underground works, characterized by: the device comprises an embedded part (1), a connecting rod (2) and a connecting disc (3); the embedded part (1) is correspondingly and vertically embedded underground, the embedding proportion of the embedded part (1) is 90-95%, the exposed end of the embedded part (1) is correspondingly connected with the tail end of the connecting rod (2), the head end face of the connecting rod (2) is correspondingly connected with the bottom end face of the connecting disc (3), the top end face of the connecting disc (3) is provided with a first stud (3.1) correspondingly connected with the prism base and a protective cover (4) used for protecting the first stud (3.1), and the top of the first stud (3.1) is provided with an identification point.
2. The split centering device for underground engineering precision conductor measurement according to claim 1, characterized in that: the embedded part (1) is formed by vertically welding two castings with different lengths correspondingly, and the embedded part (1) is L-shaped, wherein the shorter casting is correspondingly embedded underground, and the longer casting is correspondingly vertical to the ground.
3. The split centering device for underground engineering precision conductor measurement according to claim 1, characterized in that: the end face of the head end of the embedded part (1) is provided with a second stud (1.1), and the end face of the tail end of the connecting rod (2) is provided with a screw hole correspondingly matched and connected with the stud.
4. The split centering device for underground engineering precision conductor measurement according to claim 1, characterized in that: the bottom end face of the connecting disc (3) is provided with a third stud (3.3), and the head end face of the connecting rod (2) is provided with a screw hole correspondingly matched and connected with the stud.
5. The split centering device for underground engineering precision conductor measurement according to claim 1, characterized in that: the top surface of the connecting disc (3) is uniformly provided with a plurality of through holes (3.2).
6. The split centering device for underground engineering precision conductor measurement according to claim 1, characterized in that: the protective cover (4) is in corresponding threaded connection with the first stud (3.1).
7. The split centering device for underground engineering precision conductor measurement according to claim 1, characterized in that: the connecting rod (2) is of a six-sided cylinder structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020987232.1U CN211977926U (en) | 2020-06-03 | 2020-06-03 | Split type centering device for underground engineering precision conductor measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020987232.1U CN211977926U (en) | 2020-06-03 | 2020-06-03 | Split type centering device for underground engineering precision conductor measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211977926U true CN211977926U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020987232.1U Active CN211977926U (en) | 2020-06-03 | 2020-06-03 | Split type centering device for underground engineering precision conductor measurement |
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| Country | Link |
|---|---|
| CN (1) | CN211977926U (en) |
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2020
- 2020-06-03 CN CN202020987232.1U patent/CN211977926U/en active Active
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