CN221034967U - Tunnel side wall suspension total station centering device - Google Patents
Tunnel side wall suspension total station centering device Download PDFInfo
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- CN221034967U CN221034967U CN202323204770.1U CN202323204770U CN221034967U CN 221034967 U CN221034967 U CN 221034967U CN 202323204770 U CN202323204770 U CN 202323204770U CN 221034967 U CN221034967 U CN 221034967U
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- 239000000725 suspension Substances 0.000 title description 3
- 230000007246 mechanism Effects 0.000 claims abstract description 86
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a centering device for a tunnel side wall suspended total station, which comprises a first support, a second support, an instrument tray, a first telescopic mechanism and a second telescopic mechanism, wherein one of the first support and the instrument tray is rotationally connected with one end of the first telescopic mechanism through a first rotating part, and the other of the first support and the instrument tray is fixedly connected with the other end of the first telescopic mechanism; the second support is rotationally connected with one end of the second telescopic mechanism through a second rotating part, and the instrument tray is rotationally connected with the other end of the second telescopic mechanism through a third rotating part; in the installed state, the rotation axes of the three rotation parts are not overlapped with each other, and the first telescopic mechanism and the second telescopic mechanism can be telescopic so as to rotate the instrument tray to be horizontal and move towards a direction approaching or far away from the side wall. The utility model can adjust the position and angle of the instrument tray after being arranged on the side wall of the tunnel, thereby reducing the adjustment difficulty.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to a centering device for a tunnel side wall suspension total station.
Background
When a newly built tunnel passes down or passes up an existing tunnel in operation, deformation monitoring needs to be carried out on the tunnel in operation, measurement items such as vault settlement and tunnel convergence are generally calculated to obtain displacement after measurement of coordinates of monitoring points by using a total station. The engineering has extremely high requirements on measurement precision and monitoring frequency; the space of two sides in the tunnel is narrow and small, and the vehicle is many in coming and going, so need the fixed total station appearance in tunnel inside wall higher department to carry out comparatively long-term monitoring. At present, a centering device is arranged on the side wall of a tunnel, and the total station is fixed in a mode of being installed on the centering device.
In order to ensure the accuracy and reliability of the total station measurement results, it is necessary to ensure that the total station has a certain levelness on the centering device and that the center position of the field of view of the total station is aligned with the target area. At present, the centering device is usually manufactured and installed according to design parameters obtained in advance for the tunnel, but when the side wall structure for installing the centering device in the tunnel is complex, for example, when the side wall at the high position of the tunnel is inclined inwards, the centering device may have position or angle deviation after installation, so that the proper position or angle of the total station is difficult to ensure, and at the moment, the centering device needs to be removed and installed again after the position is adjusted, so that the adjustment difficulty is high.
Disclosure of utility model
The utility model aims at: aiming at the technical problem that in the prior art, when the centering device has position or angle deviation after installation, the adjustment difficulty is high, the utility model provides a tunnel side wall suspended total station centering device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a tunnel sidewall suspended total station centering device, comprising:
A first support;
A second support;
an instrument tray for mounting a measurement device;
The first telescopic mechanism is characterized in that one of the first support and the instrument tray is rotationally connected with a first telescopic end of the first telescopic mechanism through a first rotating part, and the other of the first support and the instrument tray is fixedly connected with a second telescopic end of the first telescopic mechanism;
The second support is rotationally connected with the first telescopic end of the second telescopic mechanism through a second rotating part, and the instrument tray is rotationally connected with the second telescopic end of the second telescopic mechanism through a third rotating part;
In the installation state, the rotation axes of the first rotation part, the second rotation part and the third rotation part are not overlapped with each other, and the first telescopic mechanism and the second telescopic mechanism can be telescopic.
Wherein the mounted state refers to a state in which both the first mount and the second mount are fixed to the side wall.
As an alternative of the present utility model, the rotation modes of the first rotation part, the second rotation part and the third rotation part are hinged, and rotation axes of the first rotation part, the second rotation part and the third rotation part are parallel to each other.
As an alternative of the present utility model, in the mounted state, when the instrument tray is rotated to be horizontal, the telescoping direction of the first telescoping mechanism is horizontally set.
As an alternative scheme of the utility model, the first support is rotationally connected with the first telescopic end of the first telescopic mechanism through a first rotating part, and the instrument tray is fixedly connected with the second telescopic end of the first telescopic mechanism;
the telescoping direction of the first telescoping mechanism is parallel to the instrument tray.
As an alternative of the present utility model, the first telescopic mechanism includes a plurality of telescopic rods arranged in parallel;
and/or, the second telescopic mechanism comprises a plurality of telescopic rods which are arranged in parallel.
As an alternative scheme of the utility model, the telescopic rod comprises a first rod body, a connecting piece and a second rod body, wherein the two ends of the connecting piece are respectively provided with a first thread and a second thread, the rotation directions of the first thread and the second thread are opposite, the first thread is in threaded connection with the first rod body, and the second thread is in threaded connection with the second rod body.
As an alternative scheme of the utility model, the connecting piece is of a sleeve structure, two ends of the connecting piece are respectively sleeved outside the end parts of the first rod body and the second rod body, and two ends of the inner wall of the connecting piece are respectively provided with the first thread and the second thread.
As an alternative of the utility model, the connecting piece is provided with a limiting piece, and the limiting piece is used for preventing the rotation of the connecting piece.
As an alternative scheme of the utility model, the limiting piece comprises a limiting screw, two ends of the side surface of the connecting piece are respectively provided with a screw hole matched with the limiting screw, and the screw holes are communicated with the inner cavity of the connecting piece and the outside.
As an alternative of the present utility model, the first telescopic mechanism is connected to the bottom surface of the instrument tray, and the second telescopic mechanism is connected to the bottom surface of the instrument tray.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
According to the centering device for the tunnel side wall suspended total station, provided by the utility model, after the centering device is installed on the tunnel side wall through the cooperation of the first telescopic mechanism and the second telescopic mechanism, the levelness of the instrument tray and the distance between the instrument tray and the side wall can be finely adjusted through adjusting the telescopic length of the first telescopic mechanism and/or the second telescopic mechanism, so that the instrument tray is rotated to be in a horizontal state, the central position of a field of view of measuring equipment on the instrument tray can be aligned with a target area, and the accuracy and the reliability of a measuring result of the measuring equipment on the instrument tray are improved; and the position and the angle of the instrument tray can be adjusted without reloading or replacing the centering device in the adjusting process, so that the adjusting difficulty is reduced.
Drawings
Fig. 1 is a schematic overall view of embodiment 1 of the present utility model.
Fig. 2 is a schematic side view of embodiment 1 of the present utility model.
Fig. 3 is another side view of embodiment 1 of the present utility model.
Fig. 4 is a schematic view of a telescopic rod according to embodiment 1 of the present utility model.
Fig. 5 is a schematic cross-sectional view taken along the direction A-A in fig. 4.
The marks in the figure: 1-instrument tray; 11-an instrument connection screw; 2-a first support; 3-a second support; 4-a first telescopic mechanism; 5-a second telescoping mechanism; 6-a first rotating part; 7-a second rotating part; 8-a third rotating part; 9-a telescopic rod; 91-a first rod body; 92-a second rod body; 93-connecting piece; 931—first thread; 932—a second thread; 933-screw holes.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the present utility model, the terms "horizontal," "vertical," "overhang" …, and the like do not denote that the corresponding device/component/element is required to be absolutely horizontal or vertical or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. Or may be simply understood as a corresponding device/component/element disposed in a particular orientation such as "horizontal," "vertical," "overhang" …, etc., capable of having an error/variance of + -10%, more preferably an error/variance of + -8%, more preferably an error/variance of + -6%, more preferably an error/variance of + -5%, more preferably an error/variance of + -4%, relative to the corresponding orientation. As long as the corresponding device/component/element is within the error/deviation range, it is still possible to achieve its function in the solution according to the utility model.
The appearances of the terms "first," "second," "third," …, etc. are merely descriptive of the same or similar components and are not to be construed as highlighting or implying a relative importance of a particular component.
In the description of the embodiments, "several", "a plurality" and "a number" represent at least 2. There may be any case of 3, 4, 5, 6, 7, 8, 9, etc., and even more than 9.
Example 1
The utility model provides a tunnel lateral wall hangs total powerstation centering device, as shown in fig. 1 through 3, includes first support 2, second support 3, instrument tray 1, first telescopic machanism 4 and second telescopic machanism 5, and wherein first support 2 and second support 3 can be fixed on the lateral wall in tunnel through the inflation screw, and the top surface of instrument tray 1 is equipped with instrument connecting screw 11 for the installation includes measuring equipment, and this measuring equipment is the total powerstation.
The two telescopic ends of the first telescopic mechanism 4 can be mutually far away or close to each other along the telescopic direction of the second telescopic mechanism 5, the two telescopic ends are respectively a first telescopic end and a second telescopic end, and the first support 2 is connected with the instrument tray 1 through the first telescopic mechanism 4. Specifically, as shown in fig. 2, the instrument tray 1 is rotatably connected to the first telescopic end of the first telescopic mechanism 4 through a first rotating portion 6, and the first support 2 is fixedly connected to the second telescopic end of the first telescopic mechanism 4; the first support 2 may be rotatably connected to the first telescopic end of the first telescopic mechanism 4 via a first rotating portion 6, and the instrument tray 1 may be fixedly connected to the second telescopic end of the first telescopic mechanism 4.
The two telescopic ends of the second telescopic mechanism 5 can be far away from or close to each other along the telescopic direction of the second telescopic mechanism 5, the two telescopic ends are a first telescopic end and a second telescopic end respectively, the second support 3 is rotationally connected with the first telescopic end of the second telescopic mechanism 5 through a second rotating part 7, and the instrument tray 1 is rotationally connected with the second telescopic end of the second telescopic mechanism 5 through a third rotating part 8;
Wherein, the state that the first support 2 and the second support 3 are both fixed on the side wall is set as the installation state, at this time, the rotation axes of the first rotation part 6, the second rotation part 7 and the third rotation part 8 are not overlapped with each other, and the instrument tray 1 is rotated to the horizontal and moved toward the direction approaching or separating from the side wall by telescoping the first telescoping mechanism 4 and the second telescoping mechanism 5.
It will be appreciated that when the rotational axes of any two of the first, second and third rotational parts 6, 7 and 8 coincide, the instrument tray 1 will have a degree of freedom in rotation about the coinciding rotational axes, at which time it is difficult to fix the instrument tray 1 so as to maintain the instrument tray 1 at the desired position and angle, and therefore the rotational axes of the first, second and third rotational parts 6, 7 and 8 are defined so as not to coincide with each other, to ensure that the instrument tray 1 can remain fixed under the pulling or supporting of the first and second telescopic mechanisms 4 and 5.
When the centering device is installed, the first support 2 and the second support 3 are installed at proper positions on the side wall of the tunnel according to the on-site working condition, so that the instrument tray 1 is near the optimal posture, the levelness of the instrument tray 1 is close to the horizontal, and the central position of the field of view of the measuring equipment on the instrument tray 1 is close to the target area; after the first support 2 and the second support 3 are installed, the telescopic length of the first telescopic mechanism 4 and/or the second telescopic mechanism 5 is adjusted in real time according to the deviation between the actual posture and the optimal posture of the instrument tray 1, so that the levelness of the instrument tray 1 and the distance between the instrument tray 1 and the side wall are finely adjusted, the instrument tray 1 is further rotated to be in a horizontal state, the central position of the field of view of measuring equipment on the instrument tray 1 can be aligned with a target area, and the accuracy and the reliability of the measuring result of the measuring equipment on the instrument tray 1 are further improved; and the centering device does not need to be reinstalled or replaced in the adjusting process, so that the adjusting difficulty is reduced.
It should be noted that, the posture of the instrument tray 1 includes the levelness of the instrument tray 1 and the position where the instrument tray 1 is located, and the optimal posture of the instrument tray 1 refers to that the instrument tray 1 is horizontal and the position where the instrument tray 1 is located enables the center position of the field of view of the measuring device on the instrument tray 1 to be aligned with the target area.
Among them, in view of the fact that the top surface of the instrument tray 1 is used for mounting the measuring apparatus, it is preferable to connect the first telescopic mechanism 4 and the second telescopic mechanism 5 to the bottom surface of the instrument tray 1, so that the first telescopic mechanism 4 and the second telescopic mechanism 5 are prevented from interfering with the mounting of the subsequent measuring apparatus.
The rotation modes of the first rotation part 6, the second rotation part 7 and the third rotation part 8 can be universal joint connection, so that more and more complex tunnel working conditions can be adapted, at the moment, the rotation axes of the first rotation part 6, the second rotation part 7 and the third rotation part 8 are not fixed, but the limit that the rotation axes are not overlapped at the same time still needs to be met; in addition, the first rotating part 6, the second rotating part 7 and the third rotating part 8 may be hinged, and at this time, the rotating axes of the first rotating part 6, the second rotating part 7 and the third rotating part 8 are parallel to each other, and when the first support 2 and the second support 3 are fixed on the side wall, the rotating axes are all horizontally arranged.
In order to increase the stability during adjustment, the first rotary part 6, the second rotary part 7 and the third rotary part 8 are preferably hinged in rotation.
In one or more embodiments, when the centering device is in the mounted state and the instrument tray 1 is rotated to the horizontal, the telescoping direction of the first telescoping mechanism 4 is horizontally set. At this time, the instrument tray 1 is always kept at the same height in a horizontal state due to the restriction of the telescoping direction of the first telescoping mechanism 4, so that the instrument tray 1 is conveniently positioned, and the influence on the installation of the centering device or the measurement of the measuring equipment due to the deviation of the height of the instrument tray 1 in the optimal posture is avoided.
At this time, the variable quantity of the length of the first telescopic mechanism 4 is the horizontal displacement quantity of the instrument tray 1 in a horizontal state, when staff obtains the horizontal distance between the central position of the field of view of the measuring equipment and the target area, the telescopic quantity of the first telescopic mechanism 4 can be directly adjusted according to the horizontal distance, then the instrument tray 1 can be in an optimal posture with proper height only by adjusting the length of the second telescopic mechanism 5 until the instrument tray 1 is horizontal, and the whole adjusting process is simple and quick.
Specifically, the horizontal setting of the telescopic direction of the first telescopic mechanism 4 includes at least two examples, wherein the first example is shown in fig. 2, and is: when the instrument tray 1 is rotationally connected with the first telescopic end of the first telescopic mechanism 4 through the first rotating part 6, and the first support 2 is fixedly connected with the second telescopic end of the first telescopic mechanism 4, the telescopic direction of the first telescopic mechanism 4 and the first support 2 can be mutually perpendicular, and at this time, when the first support 2 is fixed on a vertical side wall, the telescopic direction of the first telescopic mechanism 4 is naturally horizontal; a second example is shown in fig. 3, which is: when the first support 2 is rotatably connected with the first telescopic end of the first telescopic mechanism 4 through the first rotating part 6, the instrument tray 1 is fixedly connected with the second telescopic end of the first telescopic mechanism 4, and the telescopic direction of the first telescopic mechanism 4 is parallel to the instrument tray 1, at this time, when the instrument tray 1 is horizontal, the telescopic direction of the first telescopic mechanism 4 is naturally horizontal.
Wherein for both examples, when the first holder 2 is fixed to the inwardly inclined tunnel side wall, the first telescopic mechanism 4 in the first example is inclined accordingly, and the telescopic direction of the first telescopic mechanism 4 in the second example is difficult to be horizontally arranged, whereas the first telescopic mechanism 4 in the second example is not required to be inclined, and when the instrument tray 1 is in the horizontal state, the telescopic direction of the first telescopic mechanism 4 is naturally horizontally arranged, and therefore, for the case where the centering device needs to be installed on the tunnel inner wall where there is inclination, the second example is preferable.
In one or more embodiments, the first telescopic mechanism 4 may be a plurality of telescopic rods 9 arranged in parallel, and two ends of the telescopic rods 9 serve as a first telescopic end and a second telescopic end of the first telescopic mechanism 4, respectively.
The second telescopic mechanism 5 may be a plurality of telescopic rods 9 arranged in parallel, and both ends of the telescopic rods 9 may be respectively used as a first telescopic end and a second telescopic end of the second telescopic mechanism 5.
The telescopic manner of the telescopic rod 9 can be that the telescopic rod 9 is driven to stretch through driving equipment, wherein the driving equipment can be an air cylinder and a hydraulic telescopic rod 9, and the telescopic rod 9 can be driven to stretch manually. From the viewpoints of cost and convenience in fine adjustment of the telescopic rod 9, it is preferable to manually drive the telescopic rod 9 to expand and contract.
Based on the manual driving of the telescopic rod 9 to extend and retract, in one or more embodiments, as shown in fig. 4 and 5, the telescopic rod 9 includes a first rod body 91, a connecting piece 93 and a second rod body 92 coaxially arranged in sequence along the extending direction, two ends of the connecting piece 93 are respectively provided with a first thread 931 and a second thread 932, the rotation directions of the first thread 931 and the second thread 932 are opposite, the first thread 931 is in threaded connection with the first rod body 91, and the second thread 932 is in threaded connection with the second rod body 92.
One end of the first rod 91 facing away from the connecting member 93 serves as a first telescopic end of the whole telescopic rod 9, and one end of the second rod 92 facing away from the connecting member 93 serves as a second telescopic end of the whole telescopic rod 9. When adjusting the length of the telescopic rod 9, the operator can apply force to the connecting member 93 to rotate, and since the rotation directions of the first screw 931 and the second screw 932 are opposite, when the connecting member 93 rotates, the first rod 91 and the second rod 92 come close to or away from each other in the telescopic direction, thereby realizing the telescopic of the telescopic rod 9. Wherein, through the threaded connection between the first body of rod 91, connecting piece 93, the second body of rod 92, can realize the stepless regulation to telescopic link 9 flexible length, be applicable to the scene of finely tuning instrument tray 1's gesture, and telescopic link 9 overall structure is succinct, and required cost is surmounted, and convenient operation.
Wherein the first thread 931 and the second thread 932 may be internal threads or external threads. In an example in which the first thread 931 and the second thread 932 are external threads, the ends of the first rod 91 and the second rod 92 facing the connecting member 93 each have a thread groove, and the thread grooves of the first rod 91 and the second rod 92 are respectively sleeved outside the two ends of the connecting member 93; in an example in which the first screw thread 931 and the second screw thread 932 are internal screw threads, the two ends of the connecting member 93 have screw grooves, and the screw grooves at the two ends of the connecting member 93 are respectively sleeved on the first rod 91 and the second rod 92 to the outside of the end of the connecting member 93.
When the first thread 931 and the second thread 932 are internal threads, specifically, as shown in fig. 5, the connecting member 93 is in a sleeve structure, two ends of the connecting member 93 are respectively sleeved outside the ends of the first rod 91 and the second rod 92, two ends of the inner wall of the connecting member 93 are respectively provided with the first thread 931 and the second thread 932, at this time, the connecting member 93 is positioned outside the first rod 91 and the second rod 92, so that an operator can apply force to the connecting member 93 to rotate the connecting member 93 conveniently.
In one or more embodiments, the connecting member 93 is provided with a limiting member, and the limiting member is used for preventing the connecting member 93 from rotating, and further preventing the connecting member 93 from telescoping, so that the stability of the telescopic rod 9 is improved after the posture of the instrument tray 1 is adjusted, and the accuracy and reliability of the measurement result of the measuring device are improved.
To the locating part, specifically, the locating part includes the spacing screw, the both ends of connecting piece 93 side be equipped with respectively with the screw hole 933 of spacing screw adaptation, screw hole 933 intercommunication connecting piece 93's inner chamber and external world, the spacing screw can pass screw hole 933 butt at the body of rod surface that corresponds, from this hinder the relative rotation between connecting piece 93 and the body of rod.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A tunnel sidewall suspended total station centering device, comprising:
A first support (2);
a second support (3);
An instrument tray (1), the instrument tray (1) being for mounting a measuring device;
A first telescopic mechanism (4), wherein one of the first support (2) and the instrument tray (1) is rotationally connected with a first telescopic end of the first telescopic mechanism (4) through a first rotating part (6), and the other of the first support (2) and the instrument tray (1) is fixedly connected with a second telescopic end of the first telescopic mechanism (4);
The second support (3) is rotationally connected with the first telescopic end of the second telescopic mechanism (5) through a second rotating part (7), and the instrument tray (1) is rotationally connected with the second telescopic end of the second telescopic mechanism (5) through a third rotating part (8);
In the mounted state, the rotation axes of the first rotation part (6), the second rotation part (7) and the third rotation part (8) are not overlapped, and the first telescopic mechanism (4) and the second telescopic mechanism (5) can be telescopic.
2. The tunnel sidewall-suspended total station centering device according to claim 1, wherein the rotation modes of the first rotation part (6), the second rotation part (7) and the third rotation part (8) are all hinged, and the rotation axes of the first rotation part (6), the second rotation part (7) and the third rotation part (8) are parallel to each other.
3. A tunnel side wall suspended total station centering apparatus as claimed in claim 1, wherein in the mounted state, when the instrument tray (1) is rotated to be horizontal, the telescoping direction of the first telescoping mechanism (4) is horizontally set.
4. A tunnel side wall suspended total station centering device according to claim 3, characterized in that the first support (2) is rotationally connected with a first telescopic end of the first telescopic mechanism (4) through a first rotating part (6), and the instrument tray (1) is fixedly connected with a second telescopic end of the first telescopic mechanism (4);
The telescoping direction of the first telescoping mechanism (4) is parallel to the instrument tray (1).
5. A tunnel sidewall-hanging total station centring device according to claim 1, characterized in that the first telescopic mechanism (4) comprises a plurality of telescopic rods (9) arranged in parallel;
And/or the second telescopic mechanism (5) comprises a plurality of telescopic rods (9) which are arranged in parallel.
6. The tunnel sidewall hanging total station centering device according to claim 5, wherein the telescopic rod (9) comprises a first rod body (91), a connecting piece (93) and a second rod body (92), two ends of the connecting piece (93) are respectively provided with a first thread (931) and a second thread (932), the rotation directions of the first thread (931) and the second thread (932) are opposite, the first thread (931) is in threaded connection with the first rod body (91), and the second thread (932) is in threaded connection with the second rod body (92).
7. The centering device for the tunnel side wall suspended total station as claimed in claim 6, wherein the connecting piece (93) has a sleeve structure, two ends of the connecting piece (93) are respectively sleeved outside the ends of the first rod body (91) and the second rod body (92), and two ends of the inner wall of the connecting piece (93) are respectively provided with the first thread (931) and the second thread (932).
8. A tunnel sidewall-hanging total station centring device according to claim 7, characterized in that the connector (93) is provided with a stop for blocking the rotation of the connector (93).
9. The centering device for the tunnel side wall suspended total station as claimed in claim 8, wherein the limiting member comprises a limiting screw, screw holes (933) matched with the limiting screw are respectively formed in two ends of the side face of the connecting member (93), and the screw holes (933) are communicated with the inner cavity of the connecting member (93) and the outside.
10. A tunnel sidewall-suspended total station centering device as claimed in any one of claims 1 to 9, wherein said first telescopic mechanism (4) is connected to the bottom surface of said instrument tray (1) and said second telescopic mechanism (5) is connected to the bottom surface of said instrument tray (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323204770.1U CN221034967U (en) | 2023-11-27 | 2023-11-27 | Tunnel side wall suspension total station centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323204770.1U CN221034967U (en) | 2023-11-27 | 2023-11-27 | Tunnel side wall suspension total station centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221034967U true CN221034967U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323204770.1U Active CN221034967U (en) | 2023-11-27 | 2023-11-27 | Tunnel side wall suspension total station centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221034967U (en) |
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2023
- 2023-11-27 CN CN202323204770.1U patent/CN221034967U/en active Active
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