Underwater ground surface settlement monitoring auxiliary device

Abstract

The utility model relates to an underwater ground surface settlement monitoring auxiliary device, which is matched with a total station for use, and comprises a support frame, the support frame comprises a support seat and a plurality of brackets arranged around the support seat, and each bracket is provided with a counterweight unit; the telescopic wave breaking assembly comprises a telescopic inner rod, a telescopic sleeve, a handle nut and a wave breaking support, the bottom of the telescopic inner rod is arranged on the supporting seat, the top of the telescopic inner rod is connected with the telescopic sleeve through the handle nut, the wave breaking support is arranged on the telescopic sleeve, and the telescopic sleeve is connected with the handle nut through the handle nut. The handle nut is used for enabling the telescopic inner rod to move up and down along the inner wall of the telescopic inner rod when the handle nut is unscrewed and enabling the wave breaking support to rotate; and the measuring prism is rotatably arranged at the top of the telescopic sleeve, and the device is wide in application range and high in precision.

Description

Technical Field

[0001] This utility model relates to the field of engineering measurement technology, and in particular to an auxiliary device for monitoring underwater surface subsidence. Background Technology

[0002] In underground engineering projects such as subways and municipal pipelines that need to cross water bodies, it is often chosen to pass under the water system to avoid detours or disruption to surface traffic, while using the shield tunneling method to ensure safe construction. However, it is necessary to monitor the settlement of the underwater waterproofing layer during the shield tunneling process to determine whether any risks may arise.

[0003] Currently, total stations are typically used in conjunction with monitoring auxiliary devices for monitoring. These devices are placed underwater and equipped with monitoring points (such as reflectors or monitoring prisms). The total station is then used to periodically measure the elevation or three-dimensional coordinate changes at each point, and the settlement is calculated by comparing these measurements with a baseline value. The monitoring auxiliary device consists of a support rod and a reflector located at the top of the support rod. In use, the bottom of the support rod is inserted into the water, leaving the reflector exposed to the air.

[0004] The support rod of the aforementioned monitoring auxiliary device is of fixed length, which limits its applicability. In addition, its installation is unstable, and the reflector is prone to shifting, which leads to difficulties in aiming the total station and low accuracy of the measured data. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an auxiliary device for monitoring underwater surface subsidence.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] An auxiliary device for monitoring underwater surface subsidence, used in conjunction with a total station, comprises:

[0008] A support frame includes: a support base and a plurality of brackets arranged around the support base, each of the brackets being provided with a counterweight unit;

[0009] A telescopic wave-breaking assembly includes: a telescopic inner rod, a telescopic sleeve, a handle nut, and a wave-breaking support. The bottom of the telescopic inner rod is disposed on the support base, and the top is connected to the telescopic sleeve via the handle nut. The wave-breaking support is disposed on the telescopic sleeve. The handle nut is used to allow the telescopic inner rod to move up and down along the inner wall of the telescopic sleeve when loosened, and to allow the wave-breaking support to rotate.

[0010] A measuring prism, which is rotatably mounted on top of the telescopic sleeve.

[0011] In one embodiment of this utility model, the wave-breaking support has a spindle-shaped structure.

[0012] In one embodiment of this utility model, the bottom of the telescopic sleeve is provided with a slotted threaded portion, the end of the slotted threaded portion is tapered inward, and the telescopic inner rod is slidably disposed inside the telescopic sleeve after passing through the bottom of the slotted threaded portion; the handle nut is used to clamp and fix the bottom of the slotted threaded portion to the outer wall of the telescopic inner rod when tightened.

[0013] In one embodiment of this utility model, the slotted threaded portion includes a plurality of locking pieces, which form an annular locking seat. The bottoms of two adjacent locking pieces are connected by a connecting strip, and the upper part of the connecting strip forms a strip-shaped opening. The annular locking seat is provided with external threads.

[0014] In one embodiment of this utility model, the handle nut is provided with a tapered internal thread that matches the external thread, and the outer surface of the handle nut is provided with anti-slip ridges.

[0015] In one embodiment of this utility model, the counterweight unit is fixed to the bracket by fastening bolts.

[0016] In one embodiment of this utility model, the support base is provided with several inclined through holes, and each bracket is provided with an inclined blind hole at its top. The bracket and the support base are connected by fixing bolts.

[0017] In one embodiment of this utility model, the support frame further includes a brake bolt, which is disposed on the upper part of the telescopic sleeve and is used to fix the measuring prism on the telescopic sleeve.

[0018] The beneficial effects of adopting the above technical solution are as follows:

[0019] The underwater surface settlement monitoring auxiliary device provided in this embodiment of the utility model can change the height of the measuring prism by setting a telescopic inner rod and a telescopic sleeve, making it applicable to water systems of different depths and thus having a wider range of applications. By setting a wave-breaking support, it can offset part of the impact of the water flow, prevent the measuring prism from shifting position, and ensure measurement accuracy. In addition, by setting a handle nut, which cooperates with the telescopic inner rod and the telescopic sleeve, it can realize both the rotation of the wave-breaking support and the height adjustment, making the adjustment method simple and quick. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an underwater surface subsidence monitoring auxiliary device provided in an embodiment of this utility model.

[0021] Figure 2 This is a top view of a wave-breaking support and a telescopic inner rod connected according to an embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of a telescopic inner rod, a telescopic sleeve, and a handle nut provided in an embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of a telescopic sleeve provided in an embodiment of this utility model.

[0024] The components include: 1. Support frame, 1-1. Support base, 1-2. Bracket, 1-3. Counterweight unit, 2. Telescopic wave-breaking assembly, 2-1. Telescopic inner rod, 2-2. Telescopic sleeve, 2-3. Handle nut, 2-3-1. Anti-slip ridge, 2-4. Wave-breaking support, 2-5. Slotted threaded part, 2-5-1. Locking plate, 2-5-2. Annular locking seat, 2-5-3. Connecting strip, 2-5-4. Strip-shaped opening, 3. Measuring prism. Detailed Implementation

[0025] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0026] This utility model embodiment provides an auxiliary device for monitoring underwater surface subsidence, which is used in conjunction with a total station, such as... Figure 1 As shown, it includes:

[0027] The support frame 1 includes: a support base 1-1 and a plurality of brackets 1-2 arranged around the support base 1-1, and each bracket 1-2 is provided with a counterweight unit 1-3;

[0028] A telescopic wave-breaking assembly 2 includes: a telescopic inner rod 2-1, a telescopic sleeve 2-2, a handle nut 2-3, and a wave-breaking support 2-4. The bottom of the telescopic inner rod 2-1 is mounted on the support base 1-1, and its top is connected to the telescopic sleeve 2-2 via the handle nut 2-3. The wave-breaking support 2-4 is mounted on the telescopic sleeve 2-2. The handle nut 2-3 is used to allow the telescopic inner rod 2-1 to move up and down along the inner wall of the telescopic sleeve 2-2 when loosened, and to allow the wave-breaking support 2-4 to rotate. In one possible implementation, such as... Figure 2 As shown, the wave-breaking support 2-4 has a spindle-shaped structure; it is pointed at both ends and wide in the middle; the measuring prism 3 is set at the top of the telescopic sleeve 2-2.

[0029] The underwater surface settlement monitoring auxiliary device provided by this utility model is suitable for monitoring the deformation of the riverbed surface. During measurement, the support 1-2 is fixed to the riverbed surface by the counterweight unit 1-3. The handle nut 2-3 is loosened, and the height of the telescopic inner rod 2-1 and the telescopic sleeve 2-2 are adjusted as needed so that the wave-breaking support 2-4 is in contact with the water flow plane. The wave-breaking support 2-4 is rotated so that the sharp corners at both ends face the direction of water flow. The measuring prism 3 is then placed on the top of the telescopic sleeve 2-2. The measuring prism 3 is aimed at by a total station on the bridge or on the bank, thereby realizing the monitoring of underwater surface settlement.

[0030] The underwater surface settlement monitoring auxiliary device provided in this embodiment of the utility model can change the height of the measuring prism 3 by setting the telescopic inner rod 2-1 and the telescopic sleeve 2-2, so that it can be used in water systems of different depths and has a wider range of applications. By setting the wave-breaking support 2-4, it can offset part of the impact of the water flow and prevent the measuring prism 3 from shifting position, thus ensuring measurement accuracy. In addition, by setting the handle nut 2-3, which cooperates with the telescopic inner rod 2-1 and the telescopic sleeve 2-2, it can realize the rotation of the wave-breaking support 2-4 and the height adjustment, which is simple and quick.

[0031] The structure of the telescopic sleeve 2-2 and the handle nut 2-3 will be described below.

[0032] like Figure 3 and Figure 4 As shown, the bottom of the telescopic sleeve 2-2 is provided with a slotted threaded part 2-5. The end of the slotted threaded part 2-5 tapers inward to form a cone shape. The telescopic inner rod 2-1 passes through the bottom of the slotted threaded part 2-5 and is slidably disposed inside the telescopic sleeve 2-2.

[0033] The handle nut 2-3 is used to clamp and fix the bottom of the slotted threaded part 2-5 to the outer wall of the telescopic inner rod 2-1 when tightened.

[0034] like Figure 4 As shown, the slotted threaded portion 2-5 includes a plurality of locking pieces 2-5-1, which together form an annular locking seat 2-5-2. The bottoms of two adjacent locking pieces 2-5-1 are connected by a connecting strip 2-5-3, and a strip-shaped opening 2-5-4 is formed on the upper part of the connecting strip 2-5-3.

[0035] The annular locking seat 2-5-2 has an external thread on its exterior, and the handle nut 2-3 has a tapered internal thread (not shown in the figure) that matches the external thread. The outer surface of the handle nut 2-3 has anti-slip ridges 2-3-1. The anti-slip ridges 2-3-1 make it easy for construction personnel to apply force to rotate the handle nut.

[0036] To facilitate the installation and disassembly of the measuring prism 3, bracket 1-2 and counterweight unit 1-3, the installation structure is further described below.

[0037] Regarding the installation method of the measuring prism 3, in one possible implementation, the support frame 1 further includes a brake bolt, which is located on the upper part of the telescopic sleeve 2-2. The brake bolt is used to fix the measuring prism 3 on the telescopic sleeve 2-2, so that the brake bolt can be loosened to remove or rotate the measuring prism 3, so that the total station can aim at the measuring prism 3.

[0038] Regarding the installation method of brackets 1-2, in one possible implementation, such as Figure 1 As shown, the support base 1-1 is provided with a plurality of inclined through holes, and each bracket 1-2 is provided with an inclined blind hole at its top. The bracket 1-2 and the support base 1-1 are connected by fixing bolts. That is, for any bracket 1-2, the connection between the bracket 1-2 and the support base 1-1 is achieved by passing the fixing bolt through the inclined through hole and fixing it in the inclined blind hole at the top of the bracket 1-2. In this embodiment of the utility model, the number of brackets 1-2 and the number of inclined through holes are not specifically limited. For example, the number is 3, and the 3 inclined through holes are arranged around its axis.

[0039] Regarding the installation method of counterweight units 1-3, as follows: Figure 1 As shown, the counterweight unit 1-3 is fixed to the bracket 1-2 by fastening bolts. The counterweight unit 1-3 can be installed and removed by loosening and tightening the fastening bolts. Multiple sets of the counterweight unit 1-3 can be set as needed, such as 5kg, 10kg or 15kg. The material of the counterweight unit can be selected as needed, such as cement or steel. This utility model embodiment does not make specific limitations in this regard.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary device for monitoring underwater surface subsidence, characterized in that, It is used in conjunction with a total station, and includes: The support frame (1) includes: a support base (1-1) and a plurality of brackets (1-2) arranged around the support base (1-1), each of the brackets (1-2) being provided with a counterweight unit (1-3). The telescopic wave-breaking assembly (2) includes: a telescopic inner rod (2-1), a telescopic sleeve (2-2), a handle nut (2-3), and a wave-breaking support (2-4). The bottom of the telescopic inner rod (2-1) is disposed on the support base (1-1), and the top is connected to the telescopic sleeve (2-2) through the handle nut (2-3). The wave-breaking support (2-4) is disposed on the telescopic sleeve (2-2). The handle nut (2-3) is used to allow the telescopic inner rod (2-1) to move up and down along the inner wall of the telescopic sleeve (2-2) when loosened, and to allow the wave-breaking support (2-4) to rotate. Measuring prism (3), which is rotatably mounted on top of the telescopic sleeve (2-2).

2. The underwater surface subsidence monitoring auxiliary device according to claim 1, characterized in that, The wave-breaking support (2-4) has a spindle-shaped structure.

3. The underwater surface subsidence monitoring auxiliary device according to claim 1, characterized in that, The bottom of the telescopic sleeve (2-2) is provided with a slotted threaded part (2-5), the end of the slotted threaded part (2-5) is tapered inward, and the telescopic inner rod (2-1) passes through the bottom of the slotted threaded part (2-5) and is slidably disposed inside the telescopic sleeve (2-2). The handle nut (2-3) is used to clamp and fix the bottom of the slotted threaded part (2-5) to the outer wall of the telescopic inner rod (2-1) when tightened.

4. The underwater surface subsidence monitoring auxiliary device according to claim 3, characterized in that, The slotted threaded part (2-5) includes multiple locking pieces (2-5-1), and the multiple locking pieces (2-5-1) form an annular locking seat (2-5-2). The bottoms of two adjacent locking pieces (2-5-1) are connected by a connecting strip (2-5-3), and a strip-shaped opening (2-5-4) is formed on the upper part of the connecting strip (2-5-3). The annular locking seat (2-5-2) has external threads on its exterior.

5. The underwater surface subsidence monitoring auxiliary device according to claim 4, characterized in that, The handle nut (2-3) has a tapered internal thread that matches the external thread, and the outer surface of the handle nut (2-3) has anti-slip ridges (2-3-1).

6. The underwater surface subsidence monitoring auxiliary device according to claim 1, characterized in that, The counterweight unit (1-3) is fixed to the bracket (1-2) by fastening bolts.

7. The underwater surface subsidence monitoring auxiliary device according to claim 1, characterized in that, The support base (1-1) is provided with several inclined through holes, and each bracket (1-2) is provided with an inclined blind hole at its top. The bracket (1-2) and the support base (1-1) are connected by fixing bolts.

8. The underwater surface subsidence monitoring auxiliary device according to claim 1, characterized in that, The support frame (1) further includes a brake bolt, which is located on the upper part of the telescopic sleeve (2-2) and is used to fix the measuring prism (3) on the telescopic sleeve (2-2).

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