Turnover type monitoring and measuring point protection device

Abstract

The utility model discloses a turnover monitoring and measuring point protection device, which relates to the field of tunnel monitoring and measuring equipment and comprises an embedded rod embedded in bed rock. The top end of the connecting sleeve is connected with the bottom end of the embedded rod, and the bottom end of the connecting sleeve is exposed out of the embedded rod; the top end of the connecting rod is connected with the bottom end of the connecting sleeve, and the bottom end of the connecting rod is located on the outer side of the bed rock; the observation mark is obliquely arranged at the bottom end of the connecting rod, a hinge device is installed at the top end of the observation mark, a turning cover is hinged to the hinge device, and magnets are installed on the turning cover, the back side of the observation mark and the connecting rod. The tunnel monitoring and measuring device is applied to tunnel monitoring and measuring, consumption of monitoring and measuring materials can be saved, monitoring and measuring cost is reduced, safety in the construction process is improved, and working efficiency of monitoring and measuring is improved.

Description

Technical Field

[0001] The present invention relates to the field of tunnel monitoring and measuring equipment, and in particular to a rotatable monitoring and measuring point protection device. Background Art

[0002] During tunnel construction, monitoring and measuring the tunnel vault settlement and surrounding convergence is necessary after tunnel excavation to understand the status of the tunnel's surrounding rock and support, assess surrounding rock stability, determine the rationality of the support structure, and assess overall tunnel safety, as well as determine the optimal timing for secondary lining construction. Furthermore, monitoring and measuring tunnel vault settlement and surrounding convergence can provide a basis for adjusting surrounding rock grades, changing design plans and parameters, and optimizing construction plans and processes during construction.

[0003] Monitoring and measuring observation markers are needed to monitor and measure the settlement of the tunnel vault and the surrounding convergence. Traditional monitoring and measuring observation markers are made of steel bars. Specifically, a steel bar with a size of not less than Φ22 is used, its exposed end is cut into an inclined surface, and a 5cmX5cm steel plate is welded to the inclined surface. Finally, a reflective sticker is attached to the surface of the steel plate to obtain a monitoring and measuring observation marker.

[0004] During use, the aforementioned monitoring and measurement observation markers are inserted into the bedrock to a depth of at least 20 cm, with the reflective tape exposed outside the primary support surface. However, during the primary support spraying of concrete, the reflective tape is inevitably contaminated. Furthermore, during the secondary lining application, on-site construction workers often cut away the exposed monitoring and measurement observation markers after they have been discontinued, rendering them unusable and increasing testing costs.

[0005] Therefore, how to provide a rotatable monitoring and measurement point protection device to realize the protection operation of the reflective tape on the monitoring and measurement observation mark and the monitoring operation of multiple points and multiple times of the monitoring and measurement observation mark has become a difficult problem that needs to be solved urgently by technical personnel in this field. Summary of the Invention

[0006] The purpose of the present invention is to provide a rotatable monitoring and measurement point protection device to solve the problem that the reflective stickers on the existing monitoring and measurement observation marks are easily contaminated by concrete and the existing monitoring and measurement observation marks cannot be used multiple times.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a rotatable monitoring and measuring point protection device, comprising:

[0009] Embedded rods, wherein the embedded rods are buried in the bedrock;

[0010] Connecting sleeve, the top end of the connecting sleeve is connected to the bottom end of the embedded rod and the bottom end of the connecting sleeve is exposed outside the embedded rod;

[0011] Connecting rod, the top end of the connecting rod is connected to the bottom end of the connecting sleeve and the bottom end of the connecting rod is located outside the bedrock;

[0012] Observation mark, the observation mark is inclined and arranged at the bottom end of the connecting rod, a hinge device is installed at the top end of the observation mark, a flip cover is hinged on the hinge device, and magnets are installed on the flip cover, the back side of the observation mark and the connecting rod.

[0013] Preferably, the embedded rod is made of steel bar, a thread is provided at the end of the embedded rod, and the embedded rod is threadedly connected with the connecting sleeve.

[0014] Preferably, the length of the embedded rod penetrating into the bedrock is not less than 20 cm, and the diameter of the steel bar is not less than 22 mm.

[0015] Preferably, the length range of the connecting sleeve is 5 - 7 cm.

[0016] Preferably, a thread is provided at the top end of the connecting rod, and the connecting rod is threadedly connected with the connecting sleeve.

[0017] Preferably, the connecting rod is made of steel bar and the diameter of the steel bar is not less than 22 mm.

[0018] Preferably, the observation mark includes:

[0019] Steel plate, the steel plate is inclined and arranged at the bottom end of the connecting rod;

[0020] Reflective sheet, the reflective sheet is pasted on the surface of the steel plate.

[0021] Preferably, the steel plate is a circular steel plate with a diameter of 6 cm, the reflective sheet is square and the size of the reflective sheet is 4 cm X 4 cm.

[0022] Preferably, the flip cover is made of a circular steel plate with a diameter of 6 cm.

[0023] Preferably, the magnet on the flip cover corresponds to the magnet on the connecting rod.

[0024] Compared with the prior art, the beneficial technical effects of the present invention:

[0025] 1) The monitoring and measuring point protection device provided by the present utility model realizes the turnover operation of the observation mark through the separated setting of the connecting rod and the embedded rod, reduces the material consumption, and reduces the monitoring and measuring cost.

[0026] 2) The connecting rod provided by the utility model is connected through a connecting sleeve and a pre-embedded rod. When the observation mark is used for turnover operation, it is only necessary to remove the connecting rod from the connecting sleeve or remove the connecting sleeve from the pre-embedded rod, instead of using a cutting machine to cut the steel bars as in the traditional observation mark, reducing the risk of electricity use and improving the safety during construction. At the same time, it also facilitates the multiple use of the monitoring measurement points.

[0027] 3) A flip cover is hinged on the observation mark of the utility model to protect the reflective sheet on the observation mark and prevent the reflective sheet from being polluted due to tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the drawings.

[0029] Figure 1 is a schematic structural diagram of the reusable monitoring and measurement point protection device of the utility model in the open state;

[0030] Figure 2 is a schematic structural diagram of the reusable monitoring and measurement point protection device of the utility model in the closed state;

[0031] Figure 3 is a schematic diagram of the placement relationship of the reusable monitoring and measurement point protection device of the utility model in a bedrock tunnel.

[0032] Description of the reference numerals: 1, pre-embedded rod; 2, connecting sleeve; 3, connecting rod; 4, observation mark; 5, magnet; 6, flip cover; 7, hinged device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] As Figures 1-3 shown, the utility model provides a reusable monitoring and measurement point protection device, including:

[0035] A pre-embedded rod 1, the pre-embedded rod 1 is buried in the bedrock;

[0036] A connecting sleeve 2, the top end of the connecting sleeve 2 is connected to the bottom end of the pre-embedded rod 1 and the bottom end of the connecting sleeve 2 is exposed outside the pre-embedded rod 1;

[0037] A connecting rod 3, the top end of the connecting rod 3 is connected to the bottom end of the connecting sleeve 2 and the bottom end of the connecting rod 3 is located outside the bedrock;

[0038] Observation marker 4, the observation marker 4 is inclined and arranged at the bottom end of the connecting rod 3, a hinge device 7 is installed at the top end of the observation marker 4, a flip cover 6 is hinged on the hinge device 7, and magnets 5 are installed on the flip cover 6, the back side of the observation marker 4 and the connecting rod 3.

[0039] In specific implementation, for the convenience of observation, the observation marker 4 can also be arranged parallel to the bottom end of the connecting rod 3, that is, the body of the observation marker 4 is parallel to the body of the connecting rod 3.

[0040] Specifically, the embedded rod 1 is made of steel bars, a thread is arranged at the end of the embedded rod 1, and the embedded rod 1 and the connecting sleeve 2 are in threaded connection.

[0041] Specifically, the length of the embedded rod 1 penetrating into the bedrock is not less than 20 cm, and the diameter of the steel bar is not less than 22 mm.

[0042] Specifically, the length range of the connecting sleeve 2 is 5 - 7 cm.

[0043] Specifically, a thread is arranged at the top end of the connecting rod 3, and the connecting rod 3 and the connecting sleeve 2 are in threaded connection.

[0044] Specifically, the connecting rod 3 is made of steel bars and the diameter of the steel bar is not less than 22 mm.

[0045] Specifically, the observation marker 4 includes:

[0046] A steel plate, the steel plate is inclined and arranged at the bottom end of the connecting rod 3;

[0047] A reflective sheet, the reflective sheet is pasted on the surface of the steel plate.

[0048] Specifically, the steel plate is a circular steel plate with a diameter of 6 cm, the reflective sheet is square and the size of the reflective sheet is 4 cm X 4 cm.

[0049] Specifically, the flip cover 6 is made of a circular steel plate with a diameter of 6 cm.

[0050] In specific implementation, a gasket is also arranged on the inner edge of the flip cover 6. When the flip cover 6 is closed, the gasket is used to protect the reflective sheet, and at the same time, it is convenient for the flip cover 6 and the steel plate to form a sealed space to avoid the reflective sheet being polluted during the construction process.

[0051] Specifically, the magnets 5 on the flip cover 6 correspond to the magnets 5 on the connecting rod 3. In addition, the magnets 5 on the flip cover 6 correspond to the magnets 5 on the back side of the observation mark 4. When the flip cover 6 is closed, there is a suction force between the magnet 5 on the flip cover 6 and the magnet 5 on the back side of the observation mark 4. Under the influence of the suction force, the flip cover 6 will not open by itself. When the flip cover 6 needs to be opened, the staff needs to operate the telescopic rod to toggle it. When the flip cover 6 is opened, a suction force is generated between the magnet 5 on the flip cover 6 and the magnet 5 on the connecting rod 3. Under the action of the suction force, the flip cover 6 will not close by itself. Similarly, the staff needs to operate the telescopic rod to toggle it. The above settings can prevent the reflective sheet from being contaminated during the construction process, and at the same time, it can also prevent the flip cover 6 from falling by itself during the measurement process, affecting the measurement results.

[0052] The utility model is applied to tunnel monitoring and measurement, which can save the consumption of monitoring and measurement materials, reduce the cost of monitoring and measurement, increase the safety during the construction process, and improve the working efficiency of monitoring and measurement.

[0053] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0054] The above-described embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A reusable monitoring and measurement point protection device, characterized in that Comprising: An embedded rod (1), the embedded rod (1) being buried in bedrock; A connecting sleeve (2), the top end of the connecting sleeve (2) being connected to the bottom end of the embedded rod (1) and the bottom end of the connecting sleeve (2) being exposed outside the embedded rod (1); A connecting rod (3), the top end of the connecting rod (3) being connected to the bottom end of the connecting sleeve (2) and the bottom end of the connecting rod (3) being located outside the bedrock; An observation marker (4), the observation marker (4) being obliquely arranged at the bottom end of the connecting rod (3), a hinge device (7) being installed at the top end of the observation marker (4), a flap (6) being hinged on the hinge device (7), and magnets (5) being installed on the flap (6), on the back side of the observation marker (4) and on the connecting rod (3).

2. The reusable monitoring and measuring point protection device according to claim 1, wherein: The embedded rod (1) is made of steel bars, a thread is provided at the end of the embedded rod (1), and the embedded rod (1) is threadedly connected to the connecting sleeve (2).

3. The reusable monitoring and measurement point protection device according to claim 2, characterized in that: The length of the embedded rod (1) extending into the bedrock is not less than 20 cm, and the diameter of the steel bar is not less than 22 mm.

4. The reusable monitoring and measurement point protection device according to claim 1, wherein: The length range of the connecting sleeve (2) is 5 - 7 cm.

5. The reusable monitoring and measuring point protection device according to claim 1, characterized in that: A thread is provided at the top end of the connecting rod (3), and the connecting rod (3) is threadedly connected to the connecting sleeve (2).

6. The reusable monitoring and measurement point protection device according to claim 1, wherein: The connecting rod (3) is made of steel bars and the diameter of the steel bar is not less than 22 mm.

7. The reusable monitoring and measurement point protection device according to claim 1, characterized in that, The observation marker (4) comprises: A steel plate, the steel plate being obliquely arranged at the bottom end of the connecting rod (3); A reflective sheet, the reflective sheet being pasted on the surface of the steel plate.

8. The reusable monitoring and measurement point protection device according to claim 7, characterized in that: The steel plate is a circular steel plate with a diameter of 6 cm, the reflective sheet is square and the size of the reflective sheet is 4 cm × 4 cm.

9. The reusable monitoring and measurement point protection device according to claim 8, wherein: The flap (6) is made of a circular steel plate with a diameter of 6 cm.

10. The reusable monitoring and measurement point protection device according to claim 1, wherein: The magnet (5) on the flap (6) corresponds to the magnet (5) on the connecting rod (3).

Images