Roadbed Settlement Monitoring Device

Abstract

A roadbed settlement monitoring device includes a positioning plate, a cylindrical rod at the bottom of the positioning plate, an extension rod at the lower part of the cylindrical rod, a pressing base at the bottom of the extension rod, and a vertical elongated hole on the outer surface of the extension rod. A foldable and extendable diameter ruler is hinged in the elongated hole. During use, as the pressing ball presses down, the measuring rod moves axially back and forth in the measuring rod hole. The measuring rod pushes the movable column to slide in the sliding cavity, thereby extending the diameter ruler on the surface of the measuring rod to the inner wall of the roadbed settlement hole for measurement. The measurement process utilizes the geometric relationship between the lifting height of the measuring rod and the length of the diameter ruler to determine the lower half diameter of the roadbed settlement hole by reading the scale value on the surface of the measuring rod.

Description

Technical Field

[0001] This utility model belongs to the field of roadbed settlement monitoring technology, and specifically relates to a roadbed settlement monitoring device. Background Technology

[0002] Railways are a form of transportation in China, serving as a vital national infrastructure and a popular mode of transport, and occupying a backbone position in China's comprehensive transportation system. In recent years, with the rapid development of railway construction and the gradual formation and densification of the railway network, more and more off-railway projects need to cross railways for construction. How to monitor railway subgrade settlement during construction has become a focus of attention.

[0003] Existing instruments for monitoring roadbed settlement cannot adjust their measuring diameter according to the actual diameter of the settlement hole, and the instruments have poor versatility. The measuring position can only measure the diameter of the hole opening. However, the diameter measurement of roadbed settlement holes sometimes requires taking the lower half of the hole diameter as the actual measurement size. Therefore, there is a need to provide a roadbed settlement monitoring device. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the above-mentioned prior art and provide a roadbed settlement monitoring device to solve the problems that existing roadbed settlement monitoring instruments cannot adjust their measuring diameter according to the actual settlement hole diameter, the existing roadbed settlement monitoring instruments have poor versatility, the measuring position can only measure the hole opening diameter, and the measurement of the roadbed settlement hole diameter sometimes requires taking the lower half diameter of the hole as the actual measuring size.

[0005] The technical solution adopted to solve the above technical problems is: a roadbed settlement monitoring device, including a positioning plate, a cylindrical rod at the bottom of the positioning plate, an extension rod at the bottom of the cylindrical rod, a pressing base at the bottom of the extension rod, a vertical elongated hole on the outer surface of the extension rod, and a foldable and extendable diameter ruler hinged in the elongated hole.

[0006] The cylindrical rod and the extension rod of this utility model are integrated into one structure. The extension rod has a sliding cavity with a circular cavity structure inside, and the cylindrical rod has a measuring rod hole with a circular cavity structure inside. The sliding cavity and the measuring rod hole are connected. The measuring rod passes through the positioning plate and extends into the measuring rod hole. The lower end of the measuring rod is connected to the movable column set in the sliding cavity. The elongated hole is connected to the sliding cavity, and the diameter ruler is hinged to the movable column.

[0007] In this invention, one end of the diameter ruler is hinged to the lower outer side of the extension rod, and a push rod is hinged to the middle of the diameter ruler. The other end of the push rod passes through the elongated hole and is hinged to the outer wall of the movable column.

[0008] The measuring rod of this utility model is provided with a scale.

[0009] The measuring rod of this invention is provided with a pressing ball at its upper end.

[0010] The extension rod of this invention has a clearance hole at the upper end of the elongated hole, and a clearance groove corresponding to the clearance hole is opened at the bottom end of the cylindrical rod.

[0011] The extension rod of this invention has three sets of elongated holes evenly distributed within a 360° phase on its outer surface, and each set of elongated holes is connected to the sliding cavity.

[0012] The positioning plate of this utility model is provided with two sets of handles on the upper part.

[0013] The positioning plate of this utility model is provided with a locking pin.

[0014] This invention has the following advantages over the prior art:

[0015] 1. This utility model uses a circular positioning plate to facilitate good contact with the ground around the roadbed settlement hole. A cylindrical rod is provided at the bottom of the positioning plate, and an extension rod with a circular structure is provided at the bottom of the cylindrical rod. The extension rod is inserted into the roadbed settlement hole. A circular pressing plate with a circular structure can be provided at the bottom of the extension rod. When the depth is sufficient, the pressing plate presses against the bottom surface of the roadbed settlement hole to provide support for the extension rod. If the pressing plate cannot reach the bottom of the settlement hole, the support provided by the positioning plate is sufficient to support the device. An elongated hole is opened on the outer surface of the extension rod, and a foldable and extendable diameter ruler is hinged in the elongated hole. The diameter ruler extends on the surface of the extension rod, and the end of the diameter ruler abuts against the inner wall of the roadbed settlement hole to measure the diameter of the roadbed settlement hole. The measured diameter of the roadbed settlement hole is determined according to the scale value read on the surface of the measuring rod.

[0016] 2. This utility model features a pressing ball for easy pressing. During the downward pressing of the pressing ball, the measuring rod moves axially back and forth within the measuring rod hole. The measuring rod pushes the movable column to slide within the sliding cavity, thereby extending the diameter ruler from the surface of the measuring rod to the inner wall of the roadbed settlement hole for measurement. The measurement process utilizes the geometric relationship between the lifting height of the measuring rod and the length of the diameter ruler to determine the lower half diameter of the roadbed settlement hole by reading the scale value on the surface of the measuring rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the roadbed settlement monitoring device of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the external structure of the roadbed settlement monitoring device of this utility model. Figure 2 ;

[0019] Figure 3 This is a front view structural diagram of the roadbed settlement monitoring device of this utility model;

[0020] Figure 4 This is a front cross-sectional structural diagram of the roadbed settlement monitoring device of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the roadbed settlement monitoring device of this utility model placed inside the roadbed settlement hole;

[0022] Figure 6 This is the measurement principle diagram of this device.

[0023] In the diagram: 1. Pressing base; 2. Extension rod; 3. Long hole; 4. Diameter ruler; 5. Clearance hole; 6. Cylindrical rod; 7. Handle; 8. Measuring rod; 9. Pressing ball; 10. Locking pin; 11. Positioning plate; 12. Clearance groove; 13. Push rod; 14. Sliding cavity; 15. Movable column; 16. Scale; 17. Measuring rod hole. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

[0025] Example 1

[0026] exist Figures 1-5 The roadbed settlement monitoring device of this utility model includes a disc-shaped positioning plate 11. The disc-shaped structure facilitates good contact with the ground around the roadbed settlement hole. A cylindrical rod 6 is provided at the bottom of the positioning plate 11, and an extension rod 2 is provided at the lower part of the cylindrical rod 6. A pressing base 1 is provided at the bottom of the extension rod 2. The bottom surface of the pressing base 1 is a smooth plane. The pressing base 1 can press against the inner bottom surface of the roadbed settlement hole to provide support for the extension rod 2. Vertical elongated holes 3 are provided on the outer surface of the extension rod 2. In this embodiment, three sets of elongated holes 3 are evenly distributed within a 360° phase on the outer surface of the extension rod 2. A foldable and extendable diameter ruler 4 is hinged in the elongated hole 3. By extending the diameter ruler 4 on the surface of the extension rod 2, the free end of the diameter ruler 4 abuts against the inner wall of the roadbed settlement hole to measure the lower diameter of the roadbed settlement hole. This device determines the size of the lower half diameter of the roadbed settlement hole by reading the scale value on the surface of the measuring rod 8.

[0027] In this embodiment, the cylindrical rod 6 and the extension rod 2 are an integral structure. The extension rod 2 has a sliding cavity 14 with a circular cavity structure inside. The cylindrical rod 6 has a measuring rod hole 17 with a circular cavity structure inside. The sliding cavity 14 and the measuring rod hole 17 are connected. The measuring rod 8 passes through the positioning plate 11 and extends into the measuring rod hole 17. The lower end of the measuring rod 8 is connected to the movable column 15 set in the sliding cavity 14. The movable column 15 can slide in the sliding cavity 14. The elongated hole 3 is connected to the sliding cavity 14. One end of the diameter ruler 4 is hinged to the lower outer side of the extension rod 2. The middle part of the diameter ruler 4 is hinged to the push rod 13. The other end of the push rod 13 passes through the elongated hole 3 and is hinged to the outer wall of the movable column 15. The measuring rod 8 is provided with a scale 16. For convenient operation, the upper end of the measuring rod 8 is provided with a pressing ball 9. In use, place the positioning plate 11 on the roadbed surface of the settlement hole, insert the cylindrical rod 6 and the extension rod 2 into the settlement hole, press down on the pressing ball 9, causing the measuring rod 8 to move downwards. The measuring rod 8 causes the movable column 5 to move downwards, which in turn causes the diameter ruler 4 to extend outwards until it touches the side wall of the settlement hole. Read the scale reading of the downward movement of the measuring rod 8, such as... Figure 6 As shown, when the diameter ruler 4 is in the fully closed state, the distance from the hinge point of the movable column 15 to the lower end of the diameter ruler 4 is... The length of the diameter ruler 4 is ,at this time = The reading when measuring rod 8 is pressed down is The diameter of the settling hole to be measured is... ,in, .

[0028] To allow for the extension and folding of the push rod 13 and prevent motion interference, a clearance hole 5 is provided at the upper end of the elongated hole 3 on the extension rod 2, and a clearance groove 12 corresponding to the clearance hole 5 is provided at the bottom end of the cylindrical rod 6. Two sets of handles 7 are provided on the upper part of the positioning plate 11 for easy operation. Several sets of locking pins 10 are provided on the positioning plate 11 to allow it to be locked and fixed to the roadbed surface when needed.

Claims

1. A roadbed settlement monitoring device, comprising a positioning plate (11), characterized in that: A cylindrical rod (6) is provided at the bottom of the positioning plate (11), an extension rod (2) is provided at the bottom of the cylindrical rod (6), a pressing base plate (1) is provided at the bottom of the extension rod (2), a vertical long hole (3) is provided on the outer surface of the extension rod (2), and a foldable and extendable diameter ruler (4) is hinged in the long hole (3).

2. The roadbed settlement monitoring device according to claim 1, characterized in that: The cylindrical rod (6) and the extension rod (2) are an integral structure. The extension rod (2) has a sliding cavity (14) with a circular cavity structure inside. The cylindrical rod (6) has a measuring rod hole (17) with a circular cavity structure inside. The sliding cavity (14) and the measuring rod hole (17) are connected. The measuring rod (8) passes through the positioning plate (11) and extends into the measuring rod hole (17). The lower end of the measuring rod (8) is connected to the movable column (15) set in the sliding cavity (14). The long hole (3) is connected to the sliding cavity (14). The diameter ruler (4) is hinged to the movable column (15).

3. The roadbed settlement monitoring device according to claim 2, characterized in that: One end of the diameter ruler (4) is hinged to the lower outer side of the extension rod (2), and a push rod (13) is hinged to the middle of the diameter ruler (4). The other end of the push rod (13) passes through the elongated hole (3) and is hinged to the outer wall of the movable column (15).

4. The roadbed settlement monitoring device according to claim 2, characterized in that: The measuring rod (8) is provided with a scale (16).

5. The roadbed settlement monitoring device according to claim 2, characterized in that: The upper end of the measuring rod (8) is provided with a pressing ball (9).

6. The roadbed settlement monitoring device according to claim 2, characterized in that: The extension rod (2) has a clearance hole (5) at the upper end of the long hole (3) and the cylindrical rod (6) has a clearance groove (12) corresponding to the clearance hole (5) at the bottom end.

7. The roadbed settlement monitoring device according to claim 6, characterized in that: The extension rod (2) has three sets of long holes (3) evenly distributed within the 360° phase of its outer surface, and each set of long holes is connected to the sliding cavity (14).

8. The roadbed settlement monitoring device according to claim 1, characterized in that: The positioning plate (11) is provided with two sets of handles (7) on its upper part.

9. The roadbed settlement monitoring device according to claim 1, characterized in that: The positioning plate (11) is provided with a locking pin (10).

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