Total station erecting device for subway foundation pit detection

Abstract

A total station erecting device for subway foundation pit detection comprises a base, the top of the base is connected with a total station, the bottom of the base is clamped to the top of a retaining wall, one side of the bottom of the base abuts against one side of the retaining wall through a first fixing piece, and the other side of the bottom of the base abuts against the other side of the retaining wall through a second fixing piece. According to the design, on one hand, the total station is erected at the top of the retaining wall, so that the measurement view is not affected by the retaining wall in front when a structure below the foundation pit is measured from the upper portion of the foundation pit, and due to the fact that measurement is conducted on the retaining wall with higher hardness, the measurement stability is higher; and on the other hand, the base and the retaining wall are fixed through the first fixing piece and the second fixing piece, and the situation that in the measuring process of the erecting device, due to the fact that an operator touches the erecting device by mistake, position deviation occurs, measurement errors are caused, or instrument damage is caused by falling can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and specifically relates to a total station installation device for subway foundation pit detection, which is suitable for preventing the measurement field of the total station from being affected by the retaining wall, preventing the total station from position shifting or falling, and improving the measurement stability. Background Art

[0002] With the rapid development of urban construction, the mileage of subway construction is increasing, the construction speed is fast, and high precision is required. In subway construction, it is necessary to dig a foundation pit, and use measuring instruments such as total stations to measure the structures under the foundation pit from the foundation pit. The total station is generally set up using a tripod. The tripod is generally set up on the sidewalk next to the foundation pit, behind the retaining wall, so the measurement field of the total station is easily affected by the retaining wall in front, and the total station needs to remain stable during the measurement process. If the soil at the setting location is soft, it is easy to cause the tripod to shake, thereby affecting the measurement accuracy.

[0003] The utility model patent with application number 202120414451.5 discloses a total station bracket, including a base, a support panel, and multiple vertical brackets. The top of the base is fixedly connected to the support plane through multiple vertical brackets, the support panel is used to install the total station, and a positioning groove for clamping the track is opened at the bottom of the base; the total station is fixed on the track by using the total station bracket to prevent the total station from shaking due to airflow and affecting the accuracy of the total station; however, the total station bracket still has the following problems:

[0004] 1. The total station bracket can only set up the total station on the track, and cannot be set up on the retaining wall. When it is necessary to measure the structure under the foundation pit from the foundation pit, if there is a retaining wall in front, the measurement field of the total station is easily affected by the retaining wall.

[0005] 2. The total station bracket fixes the base and the track by cooperating with the positioning groove and the track. This fixing method has poor firmness. Once the operator touches it by mistake, the base is easily displaced along the track to cause measurement errors. In addition, this fixing method makes the total station bracket less versatile. Once the shape and size of the measured object changes, the total station bracket is no longer applicable. Summary of the invention

[0006] The utility model aims to solve the above problems existing in the prior art and to provide a total station installation device for subway foundation pit detection, which can ensure that the measurement field of the total station is not affected by the retaining wall in front, is not prone to position displacement or falling, and has good measurement stability.

[0007] To achieve the above objectives, the technical solution of the utility model is as follows:

[0008] A total station installation device for subway foundation pit inspection comprises a base, the top of the base is connected to the total station, the bottom of the base is clamped on the top of a retaining wall, the total station installation device also comprises a first fixing piece and a second fixing piece, one side of the bottom of the base abuts against one side of the retaining wall through the first fixing piece, and the other side of the bottom of the base abuts against the other side of the retaining wall through the second fixing piece.

[0009] The first fixing member includes a first screw, one end of which passes through a first screw hole opened on one side of the bottom of the base and abuts against one side of the retaining wall. The second fixing member includes a second screw, one end of which passes through a second screw hole opened on the other side of the bottom of the base and abuts against the other side of the retaining wall.

[0010] The base includes a horizontal plate located above the retaining wall and a first vertical plate and a second vertical plate located on both sides of the retaining wall. The two sides of the horizontal plate are respectively connected to the top of the first vertical plate and the second vertical plate. The lower surface of the horizontal plate contacts the top surface of the retaining wall. The first screw hole is opened on the first vertical plate, and the second screw hole is opened on the second vertical plate.

[0011] The two sides of the horizontal plate are respectively connected to the top of the first vertical plate and the top of the second vertical plate in an integrated manner.

[0012] A first through hole is formed on one side of the horizontal plate, a third screw hole is formed on the top of the first vertical plate, and the third screw hole is fixed to the first through hole by a first screw; a second through hole is formed on the other side of the horizontal plate, a fourth screw hole is formed on the top of the second vertical plate, and the fourth screw hole is fixed to the second through hole by a second screw; the first through hole and the second through hole are both multiple in number and are arranged along the width direction of the horizontal plate.

[0013] The number of the first screw holes and the number of the second screw holes are both multiple, the multiple first screw holes are distributed in a matrix on the first vertical plate, and the multiple second screw holes are distributed in a matrix on the second vertical plate.

[0014] The first fixing member further includes a first screwing head, which is fixedly connected to the other end of the first screw rod. The second fixing member further includes a second screwing head, which is fixedly connected to the other end of the second screw rod.

[0015] The width of the transverse plate is greater than the width of the retaining wall.

[0016] A rubber protective pad is arranged on the lower surface of the transverse plate.

[0017] A forced centering disk is arranged on the upper surface of the transverse plate, and a centering screw is arranged on the forced centering disk. The centering screw is used to be connected with a centering nut of the total station.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model discloses a total station installation device for subway foundation pit detection, comprising a base, the top of the base is connected to the total station, the bottom of the base is clamped on the top of the retaining wall, one side of the bottom of the base is abutted against one side of the retaining wall through a first fixing member, and the other side of the bottom of the base is abutted against the other side of the retaining wall through a second fixing member; on the one hand, compared with the traditional use of a tripod to install the total station, the design installs the total station on the top of the retaining wall through the base, and when measuring the structure under the foundation pit from the foundation pit, the measurement field of view is not affected by the retaining wall in front, and because the measurement is performed on the retaining wall with higher hardness, the measurement stability is stronger; on the other hand, the design fixes the base to the retaining wall through the first fixing member and the second fixing member, and the connection reliability is better, which can avoid the installation device from causing measurement errors due to the operator's accidental touch during the measurement process, or causing damage to the instrument due to the fall. Therefore, the design can avoid the measurement field of the total station from being affected by the retaining wall, the measurement stability is strong, and it is not easy to cause positional displacement or fall.

[0020] 2. In the utility model, a total station installation device for subway foundation pit detection, the first fixing member includes a first screw rod, one end of the first screw rod passes through a first screw hole opened on one side of the bottom of the base and abuts against one side of the retaining wall, and the second fixing member includes a second screw rod, one end of the second screw rod passes through a second screw hole opened on the other side of the bottom of the base and abuts against the other side of the retaining wall; in this design, the first screw rod and the second screw rod cooperate with the first screw hole and the second screw hole to achieve fixation, and the screw-in depth of the first screw rod and the second screw rod is adjustable. If the retaining wall is thicker, the overall screw-in depth of the first screw rod and the second screw rod is reduced, and if the retaining wall is thinner, the overall screw-in depth of the first screw rod and the second screw rod is increased, so that the installation device can adapt to retaining walls of different thicknesses within a smaller range, and the thickness adaptation range at this time is the maximum screw-in depth of the screw rod. Therefore, the utility model can adapt to retaining walls of different thicknesses within a smaller range.

[0021] 3. In the utility model, a total station installation device for subway foundation pit detection is provided with a first through hole on one side of the horizontal plate, a third screw hole is provided on the top of the first vertical plate, the third screw hole is fixed to the first through hole by a first screw, a second through hole is provided on the other side of the horizontal plate, a fourth screw hole is provided on the top of the second vertical plate, the fourth screw hole is fixed to the second through hole by a second screw, the number of the first through hole and the second through hole are both multiple, and are all arranged along the width direction of the horizontal plate; in this design, the first through hole and the second through hole at the corresponding position are selected according to the thickness of the retaining wall, which further expands the thickness adaptation range of the installation device. Therefore, the utility model further expands the thickness adaptation range of the installation device.

[0022] 4. In the utility model, a total station installation device for subway foundation pit detection has multiple first screw holes and multiple second screw holes, which are distributed in a matrix on the first vertical plate, and multiple second screw holes are distributed in a matrix on the second vertical plate; in the above design, the number of the first screw holes and the second screw holes are multiple and the first screw holes and the second screw holes are distributed in a matrix, and the first screw rod matched with the first screw hole and the second screw rod matched with the second screw hole can adjust the screwing depth until they abut against the surface of the retaining wall, so as to adapt to the shape change of the side of the retaining wall, and ensure the high connection reliability between the installation device and the retaining wall. Therefore, when the utility model is connected and fixed with the retaining wall, it can adapt to the undulations on the surfaces of both sides of the retaining wall, and ensure the high connection reliability.

[0023] 5. In the total station installation device for subway foundation pit detection of the utility model, a rubber protective pad is provided on the lower surface of the horizontal plate; in this design, the rubber protective pad is provided to prevent the horizontal plate from being deformed by the retaining wall, thereby ensuring the measurement accuracy. Therefore, the utility model can prevent the horizontal plate from being deformed by the retaining wall, thereby ensuring the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the front view of Example 1.

[0025] Figure 2 This is a top view of Example 1.

[0026] Figure 3 This is a working schematic diagram of Example 1.

[0027] Figure 4 This is the front view of Example 4.

[0028] Figure 5 This is a top view of Example 4.

[0029] In the above figure, base 1, horizontal plate 11, first through hole 111, second through hole 112, first vertical plate 12, third screw hole 121, first screw 122, second vertical plate 13, fourth screw hole 131, second screw 132, first screw hole 14, second screw hole 15, rubber protection pad 16, forced centering plate 2, centering screw 21, first fixing member 3, first screw rod 31, first screwing head 32, second fixing member 4, second screw rod 41, second screwing head 42, retaining wall 5, total station 6. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with specific implementations and drawings.

[0031] See also Figures 1 to 5A total station installation device for subway foundation pit detection includes a base 1, the top of the base 1 is connected to the total station 6, the bottom of the base 1 is clamped on the top of the retaining wall 5, and the total station installation device also includes a first fixing member 3 and a second fixing member 4. One side of the bottom of the base 1 is abutted against one side of the retaining wall 5 through the first fixing member 3, and the other side of the bottom of the base 1 is abutted against the other side of the retaining wall 5 through the second fixing member 4.

[0032] The first fixing member 3 includes a first screw rod 31, one end of which passes through a first screw hole 14 opened on one side of the bottom of the base 1 and abuts against one side of the retaining wall 5. The second fixing member 4 includes a second screw rod 41, one end of which passes through a second screw hole 15 opened on the other side of the bottom of the base 1 and abuts against the other side of the retaining wall 5.

[0033] The base 1 includes a horizontal plate 11 located above the retaining wall 5 and a first vertical plate 12 and a second vertical plate 13 located on both sides of the retaining wall 5. The two sides of the horizontal plate 11 are respectively connected to the top of the first vertical plate 12 and the second vertical plate 13. The lower surface of the horizontal plate 11 contacts the top surface of the retaining wall 5. The first screw hole 14 is opened on the first vertical plate 12, and the second screw hole 15 is opened on the second vertical plate 13.

[0034] Both sides of the transverse plate 11 are integrally connected to the tops of the first vertical plate 12 and the second vertical plate 13 respectively.

[0035] A first through hole 111 is provided on one side of the horizontal plate 11, a third screw hole 121 is provided on the top of the first vertical plate 12, and the third screw hole 121 is fixed to the first through hole 111 by a first screw 122, a second through hole 112 is provided on the other side of the horizontal plate 11, a fourth screw hole 131 is provided on the top of the second vertical plate 13, and the fourth screw hole 131 is fixed to the second through hole 112 by a second screw 132, and the number of the first through holes 111 and the second through holes 112 are both multiple, and are all arranged along the width direction of the horizontal plate 11.

[0036] The number of the first screw holes 14 and the number of the second screw holes 15 are both plural. The first screw holes 14 are distributed in a matrix on the first vertical plate 12 , and the second screw holes 15 are distributed in a matrix on the second vertical plate 13 .

[0037] The first fixing member 3 further includes a first screwing head 32 , which is fixedly connected to the other end of the first screw rod 31 . The second fixing member 4 further includes a second screwing head 42 , which is fixedly connected to the other end of the second screw rod 41 .

[0038] The width of the transverse plate 11 is greater than the width of the retaining wall 5 .

[0039] A rubber protective pad 16 is provided on the lower surface of the transverse plate 11 .

[0040] A forced centering plate 2 is disposed on the upper surface of the transverse plate 11 , and a centering screw 21 is disposed on the forced centering plate 2 . The centering screw 21 is used to be connected to the centering nut of the total station 6 .

[0041] The principle of the utility model is described as follows:

[0042] See also Figure 3 , because the position in front of the retaining wall is narrow, it is impossible to set up a tripod, and the tripod can only be set up behind the retaining wall. At this time, the observation point of the total station on the tripod is point A, and the monitoring point at the bottom of the foundation pit is point C. When measuring from point A to point C, the measurement field of the total station is completely blocked by the retaining wall, and effective observation cannot be performed; the total station setting device described in the utility model can flexibly set up the total station on the retaining wall, and the observation point of the total station becomes point B. When measuring from point B to point C, the measurement field of the total station will not be blocked by the retaining wall. The total station setting device described in the utility model has a simple structure, is easy to understand, and is economical and practical.

[0043] Embodiment 1:

[0044] See also Figures 1 to 3 A total station installation device for subway foundation pit detection includes a base 1, a first fixing member 3, and a second fixing member 4. The base 1 includes a horizontal plate 11 located above a retaining wall 5 and a first vertical plate 12 and a second vertical plate 13 located on both sides of the retaining wall 5. The width of the horizontal plate 11 is greater than the width of the retaining wall 5. The two sides of the horizontal plate 11 are respectively vertically connected to the tops of the first vertical plate 12 and the second vertical plate 13. The horizontal plate 11 is integrally formed with the first vertical plate 12 and the second vertical plate 13. A forced centering plate 2 is provided on the upper surface of the horizontal plate 11. A centering screw 21 is provided on the forced centering plate 2. The centering screw 21 is connected to the total station. The horizontal plate 11 is connected to the centering nut of the station 6, and a rubber protective pad 16 is provided on the lower surface of the horizontal plate 11, which contacts the top surface of the retaining wall 5 through the rubber protective pad 16 to absorb collision energy and prevent the horizontal plate 11 from deforming after long-term use, thereby affecting the measurement accuracy. The first fixing member 3 includes a first screw rod 31, and one end of the first screw rod 31 passes through a first screw hole 14 opened on the first vertical plate 12 and abuts against the side surface of the first vertical plate 12. The second fixing member 4 includes a second screw rod 41, and one end of the second screw rod 41 passes through a second screw hole 15 opened on the second vertical plate 13 and abuts against the side surface of the second vertical plate 13.

[0045] The total station 6 is set up on the top of the retaining wall 5 through the above-mentioned total station setting device, so that the measuring field of view is not affected by the retaining wall 5 in front when measuring the structure under the foundation pit from the foundation pit; the above-mentioned total station setting device is fixed by cooperating with the first screw 31, the second screw 41 and the first screw hole 14, the second screw hole 15, which not only has better connection reliability and is not prone to position deviation affecting the measurement accuracy, but also the screwing depth of the first screw hole 14 and the second screw hole 15 is adjustable, so that the total station setting device can adapt to retaining walls 5 of different thicknesses within a smaller range. At this time, the thickness adaptation range is the maximum screwing depth of the screw.

[0046] Embodiment 2:

[0047] The difference from Example 1 is that:

[0048] The first fixing member 3 further includes a first screwing head 32, which is fixedly connected to the other end of the first screw rod 31, and the second fixing member 4 further includes a second screwing head 42, which is fixedly connected to the other end of the second screw rod 41. The first screwing head 32 and the second screwing head 42 are provided to facilitate operators to screw the first screw hole 14 and the second screw hole 15.

[0049] Embodiment 3:

[0050] The difference from Example 1 is that:

[0051] The number of the first screw holes 14 and the number of the second screw holes 15 are both four, and the four first screw holes 14 are distributed in a matrix on the first vertical plate 12, and the four second screw holes 15 are distributed in a matrix on the second vertical plate 13. This multi-point fixing method ensures that the erection device can adapt to the unevenness of the surfaces on both sides of the retaining wall 5 when connected and fixed to the retaining wall 5, ensuring high connection reliability.

[0052] Embodiment 4:

[0053] The difference from Example 1 is that:

[0054] See also Figure 4 , Figure 5A first through hole 111 is provided on one side of the horizontal plate 11, a third screw hole 121 is provided on the top of the first vertical plate 12, the third screw hole 121 is fixed to the first through hole 111 by a first screw 122, a second through hole 112 is provided on the other side of the horizontal plate 11, a fourth screw hole 131 is provided on the top of the second vertical plate 13, the fourth screw hole 131 is fixed to the second through hole 112 by a second screw 132, the first through hole 111 and the second through hole 112 are both two in number, and are both arranged along the width direction of the horizontal plate 11. When in use, the first through hole 111 and the second through hole 121 at the corresponding position are selected according to the thickness of the retaining wall 5, thereby further expanding the thickness adaptation range of the erection device.

Claims

1. A total station installation device for subway foundation pit detection, comprising a base (1), the top of the base (1) being connected to a total station (6), characterized in that: The bottom of the base (1) is clamped on the top of the retaining wall (5), and the total station installation device also includes a first fixing member (3) and a second fixing member (4). One side of the bottom of the base (1) is in contact with one side of the retaining wall (5) through the first fixing member (3), and the other side of the bottom of the base (1) is in contact with the other side of the retaining wall (5) through the second fixing member (4).

2. A total station installation device for subway foundation pit detection according to claim 1, characterized in that: The first fixing member (3) comprises a first screw rod (31), one end of which passes through a first screw hole (14) provided at one side of the bottom of the base (1) and then abuts against one side of the retaining wall (5); the second fixing member (4) comprises a second screw rod (41), one end of which passes through a second screw hole (15) provided at the other side of the bottom of the base (1) and then abuts against the other side of the retaining wall (5).

3. A total station installation device for subway foundation pit detection according to claim 2, characterized in that: The base (1) comprises a horizontal plate (11) located above the retaining wall (5) and a first vertical plate (12) and a second vertical plate (13) located on both sides of the retaining wall (5); the two sides of the horizontal plate (11) are respectively connected to the top of the first vertical plate (12) and the second vertical plate (13); the lower surface of the horizontal plate (11) is in contact with the top surface of the retaining wall (5); the first screw hole (14) is provided on the first vertical plate (12); and the second screw hole (15) is provided on the second vertical plate (13).

4. A total station installation device for subway foundation pit detection according to claim 3, characterized in that: Both sides of the horizontal plate (11) are integrally connected to the tops of the first vertical plate (12) and the second vertical plate (13) respectively.

5. The total station installation device for subway foundation pit detection according to claim 3 is characterized in that: A first through hole (111) is provided on one side of the transverse plate (11), a third screw hole (121) is provided on the top of the first vertical plate (12), the third screw hole (121) and the first through hole (111) are fixed by a first screw (122), a second through hole (112) is provided on the other side of the transverse plate (11), a fourth screw hole (131) is provided on the top of the second vertical plate (13), the fourth screw hole (131) and the second through hole (112) are fixed by a second screw (132), the first through hole (111) and the second through hole (112) are both multiple in number and are arranged along the width direction of the transverse plate (11).

6. A total station installation device for subway foundation pit detection according to any one of claims 2 to 5, characterized in that: The number of the first screw holes (14) and the number of the second screw holes (15) are both multiple, the multiple first screw holes (14) are distributed in a matrix on the first vertical plate (12), and the multiple second screw holes (15) are distributed in a matrix on the second vertical plate (13).

7. A total station installation device for subway foundation pit detection according to any one of claims 2 to 5, characterized in that: The first fixing member (3) further comprises a first screwing head (32), which is fixedly connected to the other end of the first screw rod (31); the second fixing member (4) further comprises a second screwing head (42), which is fixedly connected to the other end of the second screw rod (41).

8. A total station installation device for subway foundation pit detection according to any one of claims 3 to 5, characterized in that: The width of the transverse plate (11) is greater than the width of the retaining wall (5).

9. A total station installation device for subway foundation pit inspection according to claim 4, characterized in that: A rubber protective pad (16) is provided on the lower surface of the transverse plate (11).

10. A total station installation device for subway foundation pit inspection according to any one of claims 3 to 5, characterized in that: A forced centering disc (2) is provided on the upper surface of the transverse plate (11), and a centering screw (21) is provided on the forced centering disc (2). The centering screw (21) is used to be connected to a centering nut of a total station (6).

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