CN221223760U - Contact measuring device suitable for small wellhead - Google Patents
Contact measuring device suitable for small wellhead Download PDFInfo
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- CN221223760U CN221223760U CN202322601531.3U CN202322601531U CN221223760U CN 221223760 U CN221223760 U CN 221223760U CN 202322601531 U CN202322601531 U CN 202322601531U CN 221223760 U CN221223760 U CN 221223760U
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Abstract
The utility model relates to a contact measuring device suitable for a small wellhead, comprising: the device comprises a measuring base, a first laser range finder, a first measuring plate, a ground prism, a second laser range finder and a second measuring plate; the measuring base comprises a supporting frame which is supported on the ground at the small wellhead; the telescopic rod is in running fit with the support frame, the lower part of the telescopic rod is telescopic and provided with scales, the top of the telescopic rod is positioned above the support frame, and the bottom of the telescopic rod extends downwards to the inside of the underground structure of the small wellhead along the vertical direction; the prism center of the measuring prism is a first ground control point; the first laser range finder is arranged at the upper part of the telescopic rod; the second laser range finder is rotatably arranged at the bottom of the telescopic rod and is positioned right above a first underground control point, and the first underground control point and the first ground control point are in the same plane coordinate; the first measuring plate and the ground prism are arranged at the second ground control point; the second measurement plate is disposed at a second subsurface control point co-planar with the second surface control point.
Description
Technical Field
The utility model relates to the technical field of engineering measurement, in particular to a contact measurement device suitable for a small wellhead.
Background
When underground engineering measurement is carried out on underground structures such as subways, pipe galleries and electric tunnels, the underground control points are taken as the basis, so that the ground plane coordinates and the elevations are required to be transmitted into the underground structures from the ground, and the measurement of transmitting the ground plane coordinates and the elevations to the underground is called as connection measurement. In underground engineering, in order to establish a uniform coordinate system and elevation reference between the ground and the underground, the coordinate system and elevation reference of the ground are generally transferred to the underground through tunnels, inclined shafts and shafts, and the transfer of initial data of the underground is called as connection measurement.
For underground projects such as electric power tunnels, pipe galleries and the like, the vertical well mouths along the lines are smaller, for example, the electric power tunnels, the well mouths are only the size of well covers, and the measurement conditions of conventional contact measurement methods (one-well orientation, two-well orientation, direct wire transmission measurement, gyroscopic orientation and the like) are not met, so that the ground plane coordinates cannot be transmitted to the underground, and a plurality of inconveniences are brought to underground structure measurement of the electric power tunnels, comprehensive pipe galleries and the like, which lack underground control points.
Disclosure of utility model
The utility model aims to provide a contact measuring device suitable for a small wellhead.
In order to solve the problems, the utility model adopts the following technical scheme:
A contact measurement device suitable for a small wellhead for use with a total station, comprising: the device comprises a measuring base, a first laser range finder, a first measuring plate, a ground prism, a second laser range finder and a second measuring plate;
Wherein, the measurement base includes: the device comprises a support frame, a telescopic rod and a measuring prism, wherein the support frame is supported on the ground at a small wellhead; the telescopic rod is in running fit with the support frame, the lower part of the telescopic rod is telescopic, the top of the telescopic rod is positioned above the support frame, and the bottom of the telescopic rod extends downwards to the inside of the underground structure of the small wellhead along the vertical direction; the measuring prism is arranged at the top of the telescopic rod, and the prism center of the measuring prism is a first ground control point;
The first laser range finder is arranged on a telescopic rod above the supporting frame; the second laser range finder is arranged at the bottom of the telescopic rod and can rotate; the first laser range finder is positioned right above a first underground control point, and the first underground control point and the first ground control point are in the same plane coordinate;
the first measuring plate and the ground prism are vertically arranged at a second ground control point, and a first mark line for aiming of a first laser range finder is arranged on the first measuring plate;
The second measuring plate is arranged at a second underground control point which is in the same plane coordinate with the second ground control point, and a second mark line for aiming of a second laser range finder is arranged on the second measuring plate.
As one embodiment of the utility model, the second laser range finder is configured to change the direction of the laser beam emitted by the second laser range finder when the second laser range finder rotates, and in an initial state, the laser beam emitted by the first laser range finder and the laser beam emitted by the second laser range finder are both in horizontal directions;
the first laser range finder is arranged on the first vertical line, and the first laser range finder is arranged on the second vertical line.
As one embodiment of the utility model, the support frame includes: the device comprises a supporting seat, a plurality of telescopic brackets and rotary joints, wherein the telescopic brackets and the rotary joints are arranged around the supporting seat;
the center of the supporting seat is provided with a through hole, and the rotary joint is arranged at the through hole; the lower ends of the telescopic brackets are arranged on the ground at the small wellhead, and the upper ends of the telescopic brackets are connected with the supporting seats.
As one implementation mode of the utility model, the telescopic rod passes through the rotary joint, is in running fit with the supporting seat and is telescopic at the lower part, and the telescopic rod is used for driving the second range finder to move into the underground structure of the small wellhead when the telescopic rod stretches downwards.
As one embodiment of the utility model, the outer wall of the lower part of the telescopic rod is provided with a plurality of scale marks along the length direction.
As one embodiment of the utility model, the measuring base further comprises a leveling bubble device arranged above the measuring prism, wherein round leveling bubbles are arranged in the leveling bubble device.
As one embodiment of the utility model, the first marker line is a first vertical wire provided along the height direction of the first measuring plate.
As one embodiment of the utility model, the second marker line is a second vertical wire provided along the height direction of the second measuring plate.
As one embodiment of the utility model, the second measuring plate is further provided with a plurality of graduation marks in the height direction.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
According to the connection measuring device suitable for the small wellhead, the plane coordinates of the first underground control point and the second underground control point can be obtained according to plane connection measurement by measuring the coordinates of the ground control point which have the same plane coordinates as the underground control point; the elevation of the first underground control point and the second underground control point can be obtained according to elevation connection measurement by obtaining the elevation of the first ground control point, the distance between the center of the second laser range finder and the first underground control point, the height difference between the center of the measuring prism and the center of the second laser range finder and the scale value read by aiming the second measuring plate when the second range finder is kept in a horizontal state.
Therefore, the device not only can complete the planar contact measurement of the small wellhead, but also can transmit the ground elevation to the underground, has high efficiency and low cost, and has wide popularization and application values in the underground structure measurement of electric power tunnels, comprehensive pipe galleries and the like which lack underground control points.
Drawings
Fig. 1 is a schematic structural diagram of a contact measurement device suitable for a small wellhead according to an embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a measurement base according to an embodiment of the present utility model.
Fig. 3 is a front view of a first measurement plate provided by an embodiment of the present utility model.
Fig. 4 is a front view of a second measurement plate provided by an embodiment of the present utility model.
Fig. 5 is a schematic structural view of a bubble flattening device according to an embodiment of the present utility model.
Wherein: 100. total station, 200 small wellhead;
1. The measuring base, a 101 supporting frame, a 101-1 supporting seat, a 101-2 telescopic bracket, a 101-3 rotary joint, a 102 telescopic rod, a 103 measuring prism, a 104 leveling bubble device, a 104-1 round leveling bubble, a 2 first laser range finder, a3 first measuring plate, a 301 first vertical wire, a 4 ground prism, a 5 second laser range finder, a 6 second measuring plate and a 601 second vertical wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be clearly and completely described in connection with the following specific embodiments.
The embodiment of the utility model provides a contact measurement device suitable for a small wellhead, which is used with a total station 100, as shown in fig. 1, and comprises: the measuring base 1, the first laser range finder 2, the first measuring plate 3, the ground prism 4, the second laser range finder 5 and the second measuring plate 6;
As shown in fig. 1 and 2, the measurement base 1 includes: the support frame 101, the telescopic rod 102 and the measuring prism 103, wherein the support frame 101 is supported on the ground at the small wellhead 200; the telescopic rod 102 is in running fit with the support frame 101, the lower part of the telescopic rod is telescopic, the top of the telescopic rod is positioned above the support frame 101, and the bottom of the telescopic rod extends downwards to the inside of the underground structure of the small wellhead along the vertical direction; the measuring prism 103 is arranged at the top of the telescopic rod 102, the axis of the measuring prism 103 is coincident with the axis of the telescopic rod 102, and the prism center of the measuring prism 103 is a first ground control point A;
The first laser range finder 2 is arranged on a telescopic rod 102 positioned above the supporting frame 101; the second laser range finder 5 is rotatably installed at the bottom of the telescopic rod 102 and is positioned right above a first underground control point A ', and the first underground control point A' and the first ground control point A are in the same plane coordinate; the second laser range finder is used for changing the direction of the laser beam emitted by the second laser range finder when rotating, and in the initial state, the laser beams emitted by the first laser range finder and the laser beams emitted by the second laser range finder are both in horizontal directions, as shown in fig. 1.
In addition, the ranging zero position of the first laser range finder 2, the ranging zero position of the second laser range finder, the prism center of the measuring prism, and the first underground control point are located on the same plumb direction, that is, on the same vertical line, so as to ensure that the plane coordinates are consistent.
The first measuring plate 3 and the ground prism 4 are vertically arranged at the second ground control point B, and a first mark line for aiming of the first range finder is arranged on the first measuring plate 3; as shown in fig. 3, the first marker line may be a first vertical wire 301 disposed along a height direction thereof;
The second measuring plate 6 is disposed at a second underground control point B' co-planar with the second ground control point B, and a second marker line for aiming the second laser rangefinder 5 is disposed on the second measuring plate 6, and as shown in fig. 4, the second marker line may be a second vertical line 601 disposed along the height direction thereof.
When the measuring device is used, the length of the telescopic rod 102 is adjusted, the measuring base 1 is stably erected at a vertical wellhead, the leveling bubble 104 is adjusted to be centered, the telescopic rod 102 is deep into the small wellhead, the second measuring plate 6 is vertically placed at a second underground control point B ', and the vertical wire of the second measuring plate 6 is aligned with the center of the B'. The telescopic rod 102 is rotated, the first laser distance meter 2 and the second laser distance meter 5 are opened, the second laser distance meter 5 accurately aims at the vertical wire of the second measuring plate 6, and the distance S1 at the moment is recorded.
At the same time, the first measuring plate 3 in a vertical state is moved on the ground, the first laser distance meter 2 is used for aligning the vertical wire on the first measuring plate 3 for distance measurement, when the measured distance S on the ground is equal to the distance S1, the position corresponding to the vertical wire on the first measuring plate 3 is a second ground control point B with the same plane coordinate with a second underground control point B', and a ground prism 4 is installed at the ground control point B.
The second laser range finder 5 is rotated by 90 degrees to aim at the ground surface by manual operation, and the first underground control point A 'is marked, so that the A' is consistent with the A plane coordinate. The second laser distance meter 5 may be rotatably connected to the telescopic rod 102, and the second laser distance meter 5 is manually rotated.
(1) The method for plane connection measurement is as follows:
The measurement prism 103 and the ground prism 4 are used to cooperate with the total station 100 to obtain the plane coordinates of the first ground control point a ' and the plane coordinates of the second ground control point B ' by obtaining the plane coordinates of the first ground control point a and the plane coordinates of the second ground control point B ', so as to realize plane connection measurement.
Specifically, the total station 100 is used to cooperate with the measurement prism 103 and the ground prism 4 to respectively measure and obtain the plane coordinates of the first ground control point a and the second ground control point B, i.e. obtain the plane coordinates of the first underground control point a 'and the second underground control point B'. Thus, the plane contact measurement is completed.
(2) The method for measuring the elevation relation comprises the following steps:
The measuring prism 103 is matched with the total station 100 to obtain the elevation of the first ground control point A, the distance between the center of the second laser range finder 5 and the center of the measuring prism 103 and the first underground control point A ' and the aiming height of the first mark line when aimed by the second range finder are obtained, and the elevation of the first underground control point A ' and the elevation of the second underground control point B ' are obtained, so that elevation connection measurement is realized.
In particular, the method comprises the steps of,
The total station 100 is matched with the measuring prism 103 to obtain the elevation HA of the first ground control point A; obtaining the distance H2 between the center of the second laser range finder 5 and the first underground control point A' through the time of emitting laser and receiving laser of the second laser range finder 5; reading the height difference H1 between the center of the measuring prism 103 and the center of the second laser range finder 5; reading the distance H3 between the vertical wire of the second measuring plate 6 and the second underground control point B' when the vertical wire is aimed by the second range finder;
The elevation of the first underground control point a 'corresponding to the point a is HA' =ha-H1-H2.
The second underground control point B 'corresponding to point B HAs an elevation HB' =ha-H1-H3.
Thus, the elevation relation measurement is completed.
Further, in order to obtain the height difference H1 between the center of the measuring prism 103 and the center of the second laser rangefinder 5, in one possible implementation, a plurality of graduation marks (not shown in the figure) are disposed on the lower outer wall of the telescopic rod 102 along the length direction thereof; in order to facilitate the acquisition of the distance H3 of the vertical wire of the second measuring plate 6 from the second underground control point B' when aimed by the second distance meter, the second measuring plate 6 is also provided with a plurality of graduation marks in the height direction, as shown in fig. 4.
According to the connection measuring device suitable for the small wellhead, the plane coordinates of the first underground control point A 'and the second underground control point B' can be obtained according to plane connection measurement by measuring the coordinates of the ground control point which have the same plane coordinates as the underground control point; the elevation of the first underground control point a ' and the second underground control point B ' can be obtained according to elevation relation measurement by obtaining the elevation of the first ground control point a, the distance between the center of the second laser range finder 5 and the first underground control point a ', the height difference between the center of the measuring prism 103 and the center of the second laser range finder 5, and the scale value read by aiming the second measuring plate 6 when the second range finder is kept in a horizontal state.
Therefore, the device not only can complete the planar contact measurement of the small wellhead, but also can transmit the ground elevation to the underground, has high efficiency and low cost, and has wide popularization and application values in the underground structure measurement of electric power tunnels, comprehensive pipe galleries and the like which lack underground control points.
The structure of the support frame 101 will be described below.
In one possible implementation, to achieve the rotation and fixation of the telescopic rod 102, as shown in fig. 1 and 2, the supporting frame 101 includes: the support seat 101-1, a plurality of telescopic brackets 101-2 and rotary joints 101-3 which are arranged around the support seat 101-1;
Wherein, the center of the supporting seat 101-1 is provided with a through hole, and the rotary joint 101-3 is arranged at the through hole; the lower ends of the telescopic brackets 101-2 are arranged on the ground at the small wellhead, and the upper ends are connected with the supporting seat 101-1. The number of the telescopic supports 101-2 can be adjusted as required, and the present utility model is not particularly limited thereto, and is exemplified by 3 to form a three-point support.
The telescopic rod 102 passes through the rotary joint 101-3, the upper part of the telescopic rod is in running fit with the supporting seat 101-1, the lower part of the telescopic rod is telescopic, and the telescopic rod 102 is used for driving the second range finder to move into the small wellhead underground structure when the telescopic rod stretches downwards.
Further, to ensure that the telescopic rod 102 can be in a vertical state, as shown in fig. 5, the measuring base 1 further includes a leveling bubble device 104 disposed above the measuring prism 103, and a circle leveling bubble 104-1 is disposed in the leveling bubble device 104, and the circle leveling bubble 104-1 is in a centered position by adjusting the plurality of telescopic brackets 101-2, which indicates that the telescopic rod 102 is in a vertical state.
Claims (9)
1. The utility model provides a contact measuring device suitable for little well head, its cooperation total powerstation uses, and it includes: the device comprises a measuring base, a first laser range finder, a first measuring plate, a ground prism, a second laser range finder and a second measuring plate;
wherein, the measurement base includes: the device comprises a support frame, a telescopic rod and a measuring prism, wherein the support frame is supported on the ground at a small wellhead; the telescopic rod is in running fit with the support frame, the lower part of the telescopic rod is telescopic, the top of the telescopic rod is positioned above the support frame, and the bottom of the telescopic rod extends downwards to the inside of the underground structure of the small wellhead along the vertical direction; the measuring prism is arranged at the top of the telescopic rod, and the prism center of the measuring prism is a first ground control point;
The first laser range finder is arranged on a telescopic rod above the supporting frame; the second laser range finder is rotatably arranged at the bottom of the telescopic rod and is positioned right above a first underground control point, and the first underground control point and the first ground control point are in the same plane coordinate;
the first measuring plate and the ground prism are vertically arranged at a second ground control point, and a first mark line for aiming of a first laser range finder is arranged on the first measuring plate;
The second measuring plate is arranged at a second underground control point which is in the same plane coordinate with the second ground control point, and a second mark line for aiming of a second laser range finder is arranged on the second measuring plate.
2. The connection measuring device for small wellhead according to claim 1, wherein the second laser range finder is used for changing the direction of the laser beam emitted by the second laser range finder when rotating, and in the initial state, the laser beams emitted by the first laser range finder and the second laser range finder are both in horizontal directions;
The first laser range finder is arranged at a distance measurement zero position, the second laser range finder is arranged at a distance measurement zero position, the prism center of the measuring prism and the first underground control point are positioned on the same plumb direction.
3. A contact measurement device for a small wellhead according to claim 1, wherein the support frame comprises: the device comprises a supporting seat, a plurality of telescopic brackets and rotary joints, wherein the telescopic brackets and the rotary joints are arranged around the supporting seat;
the center of the supporting seat is provided with a through hole, and the rotary joint is arranged at the through hole; the lower ends of the telescopic brackets are arranged on the ground at the small wellhead, and the upper ends of the telescopic brackets are connected with the supporting seats.
4. A contact measurement device suitable for a small wellhead according to claim 3, wherein the telescopic rod passes through the rotary joint, is in running fit with the supporting seat, and is telescopic at the lower part, and the telescopic rod is used for driving the second laser range finder to move into the underground structure of the small wellhead when the telescopic rod stretches downwards.
5. The connection measuring device for a small wellhead according to claim 4, wherein a plurality of graduation marks are provided on the lower outer wall of the telescopic rod along the length direction thereof.
6. The connection measuring device for small wellheads of claim 1, wherein said measuring base further comprises a leveling bubble device disposed above said measuring prism, said leveling bubble device having a circular leveling bubble disposed therein.
7. A connection measuring device for small wellheads as claimed in claim 1, wherein said first marker line is a first vertical wire disposed along the height of said first measuring plate.
8. A connection measuring device for small wellheads as claimed in claim 1, wherein said second marker line is a second vertical wire disposed along the height of said second measuring plate.
9. A contact measurement device for small wellheads as claimed in claim 8, wherein said second measuring plate is provided with graduation marks in the height direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322601531.3U CN221223760U (en) | 2023-09-25 | 2023-09-25 | Contact measuring device suitable for small wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322601531.3U CN221223760U (en) | 2023-09-25 | 2023-09-25 | Contact measuring device suitable for small wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221223760U true CN221223760U (en) | 2024-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322601531.3U Active CN221223760U (en) | 2023-09-25 | 2023-09-25 | Contact measuring device suitable for small wellhead |
Country Status (1)
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|---|---|
| CN (1) | CN221223760U (en) |
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2023
- 2023-09-25 CN CN202322601531.3U patent/CN221223760U/en active Active
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