Roadbed multipoint settlement monitoring sensing device

Abstract

The roadbed multipoint settlement monitoring sensing device comprises a device body, a differential pressure sensor, a bottom plate and a rotating cover, the differential pressure sensor is arranged in the device body, the bottom plate is installed at the lower end of the device body, four inserting rods are symmetrically installed at the lower end of the bottom plate, square cavities are formed in the lower portions in the inserting rods, and hidden holes are symmetrically formed in the outer surfaces of the inserting rods. And a rotating shaft is installed on the upper portion of the extrusion plate, the rotating shaft is rotationally connected with the inner wall of the hidden hole, and torsion springs are symmetrically arranged on the outer surface of the rotating shaft. A plurality of inserting rods are inserted into the land, then a rotating block is rotated to drive a threaded rod to rotate, the threaded rod drives a rolling wheel to ascend through a threaded sleeve, the rolling wheel ascends to make contact with the inclined face of a matching block, the rolling wheel pushes an extrusion plate to rotate outwards around a rotating shaft, the extrusion plate rotates to leave a hidden hole to make contact with the interior of the land, and the extrusion plate extrudes the land; therefore, the mounting effect of the device body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed monitoring, in particular to a roadbed multi-point settlement monitoring sensor device. Background Art

[0002] Subgrade settlement monitoring mainly measures the settlement of the subgrade at different times, compares the settlement data at different locations and the difference with the original design settlement data, to determine the settlement degree, location and cause of the subgrade, and provide a basis for repair work after settlement. Subgrade settlement monitoring technology has been developed for decades, and the measurement methods have been continuously improved, and the types of measuring instruments have also increased. Currently, the commonly used settlement measurement methods include: level measurement method, settlement plate, profile settlement meter, single-point settlement meter, etc.

[0003] A Chinese patent discloses a railway roadbed settlement monitoring sensor device (authorization announcement number CN 213267803U). The patent technology has a simple structure and is easy to install. The monitoring sensor device used as a monitoring point in the settlement deformation measurement method based on the hydraulic micro-pressure principle can achieve high measurement accuracy, good stability and integration, and has high practical value. However, the stability of its detachable mounting base is poor, so that the device body is easily overturned when subjected to external force, thereby affecting the monitoring work. Therefore, those skilled in the art provide a roadbed multi-point settlement monitoring sensor device to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a roadbed multi-point settlement monitoring sensor device, including a device body, a pressure difference sensor, a bottom plate and a rotating cover, wherein the pressure difference sensor is arranged inside the device body, the bottom plate is installed at the lower end of the device body, four plug rods are symmetrically installed at the lower end of the bottom plate, a square cavity is arranged in the lower part of the plug rod, hidden holes are symmetrically opened on the outer surface of the plug rod, and the hidden holes are connected to the square cavity, an extrusion plate is arranged inside the hidden hole, a rotating shaft is installed on the upper part of the extrusion plate, and the rotating shaft is rotatably connected to the inner wall of the hidden hole, and a torsion spring is symmetrically arranged on the outer surface of the rotating shaft;

[0005] A matching block is installed at one inner end of the two extrusion plates, a threaded rod is rotatably connected inside the square cavity, a gear 1 is installed at the upper end of the threaded rod, a threaded sleeve is sleeved on the outer surface of the threaded rod, and the threaded sleeve is slidably connected to the inner wall of the square cavity, and rollers are installed at both left and right ends of the threaded sleeve;

[0006] A rotating cover is sleeved on the outer surface of the device body, and the device body and the rotating cover are rotatably connected. An annular rack 1 is installed on the inner wall of the rotating cover, and the annular rack 1 is meshed with a plurality of gears. An annular rack 2 is installed on the upper end of the rotating cover, and the annular rack 2 is meshed with gear 2. A rotating rod is installed inside the gear 2, and the rotating rod is rotatably connected to the device body.

[0007] Preferably: the lower end surface of the insertion rod is spike-shaped.

[0008] Preferably: both upper and lower end surfaces of the extrusion plate are arc surfaces.

[0009] Preferably: one end of the torsion spring is fixedly connected to the inner wall of the hidden hole, and the other end of the torsion spring is fixedly connected to the extrusion plate.

[0010] Preferably: the lower end surface of the matching block is an inclined surface.

[0011] Preferably, a rotating block is installed at the rear end of the rotating rod.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model inserts a plurality of insertion rods into the ground, and then rotates the rotating block to drive the threaded rod to rotate, and the threaded rod drives the roller to rise through the threaded sleeve. The roller rises and contacts the inclined surface of the matching block, so that the roller pushes the extrusion plate to rotate outward around the rotating shaft, and the extrusion plate rotates to leave the hidden hole and contact the ground, and the extrusion plate squeezes the ground, thereby improving the installation effect of the device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of this application;

[0015] Figure 2 It is a structural schematic diagram of the gear 1 of the present application;

[0016] Figure 3 It is a structural schematic diagram of the plunger of the present application;

[0017] Figure 4 It is a structural schematic diagram of the rotating cover of the present application;

[0018] In the figure: 1. device body; 2. differential pressure sensor; 3. bottom plate; 4. plug rod; 5. square cavity; 6. hidden hole; 7. extrusion plate; 8. rotating shaft; 9. torsion spring; 10. matching block; 11. threaded rod; 12. gear one; 13. threaded sleeve; 14. roller; 15. rotating cover; 16. annular rack one; 17. annular rack two; 18. gear two; 19. rotating block. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0020] See also Figures 1 to 4 In this embodiment, a roadbed multi-point settlement monitoring sensor device is provided, including a device body 1, a pressure difference sensor 2, a bottom plate 3 and a rotating cover 15. The pressure difference sensor 2 is arranged inside the device body 1. The bottom plate 3 is installed at the lower end of the device body 1. Four plug rods 4 are symmetrically installed at the lower end of the bottom plate 3. The lower end surface of the plug rod 4 is spike-shaped. A square cavity 5 is arranged at the lower part of the plug rod 4. Hidden holes 6 are symmetrically arranged on the outer surface of the plug rod 4, and the hidden hole 6 is connected to the square cavity 5. An extrusion plate 7 is arranged inside the hidden hole 6. The upper and lower end surfaces of the extrusion plate 7 are both arc surfaces. A rotating shaft 8 is installed on the upper part of the extrusion plate 7, and the rotating shaft 8 is rotatably connected to the inner wall of the hidden hole 6. A torsion spring 9 is symmetrically arranged on the outer surface of the rotating shaft 8. One end of the torsion spring 9 is fixedly connected to the inner wall of the hidden hole 6, and the other end of the torsion spring 9 is fixedly connected to the extrusion plate 7. A matching block 10 is installed at the inner end of the two extrusion plates 7, and the lower end surface of the matching block 10 is an inclined surface. The square cavity 5 is rotatably connected to a threaded rod 11, and a gear 12 is installed on the upper end of the threaded rod 11. A threaded sleeve 13 is sleeved on the outer surface of the threaded rod 11, and the threaded sleeve 13 is slidably connected to the inner wall of the square cavity 5. Rollers 14 are installed on both ends of the threaded sleeve 13. A rotating cover 15 is sleeved on the outer surface of the device body 1, and the device body 1 and the rotating cover 15 are rotatably connected. An annular rack 16 is installed on the inner wall of the rotating cover 15, and the annular rack 16 is meshed with a plurality of gears 12. An annular rack 2 17 is installed on the upper end of the rotating cover 15, and the annular rack 2 17 is meshed with a gear 2 18. A rotating rod is installed inside the gear 2 18, and the rotating rod is rotatably connected to the device body 1, and a rotating block 19 is installed at the rear end of the rotating rod.

[0021] The working principle of the utility model is: insert a plurality of insertion rods 4 into the soil, then rotate the rotating block 19, the rotating block 19 drives the rotating cover 15 to rotate through the meshing of the gear 2 18 and the annular rack 2 17, the rotating cover 15 drives the annular rack 16 to rotate and mesh with a plurality of gears 12, the gear 12 drives the threaded rod 11 to rotate, the threaded rod 11 and the threaded sleeve 13 mesh and drive two rollers 14 to rise inside the square cavity 5, the rollers 14 rise and contact with the inclined surface of the matching block 10, so that the rollers 14 push the extrusion plate 7 to rotate outward around the rotating shaft 8, the extrusion plate 7 rotates to leave the hidden hole 6 and contact with the soil, the extrusion plate 7 squeezes the soil, thereby improving the installation effect of the device body 1.

[0022] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A roadbed multi-point settlement monitoring sensor device, comprising a device body (1), a pressure difference sensor (2), a base plate (3) and a rotating cover (15), characterized in that: A pressure difference sensor (2) is arranged inside the device body (1), a bottom plate (3) is installed at the lower end of the device body (1), four plug rods (4) are symmetrically installed at the lower end of the bottom plate (3), a square cavity (5) is arranged at the lower part of the plug rod (4), hidden holes (6) are symmetrically opened on the outer surface of the plug rod (4), and the hidden holes (6) are connected to the square cavity (5), an extrusion plate (7) is arranged inside the hidden hole (6), a rotating shaft (8) is installed on the upper part of the extrusion plate (7), and the rotating shaft (8) is rotatably connected to the inner wall of the hidden hole (6), and a torsion spring (9) is symmetrically arranged on the outer surface of the rotating shaft (8); A matching block (10) is installed at one inner end of the two extrusion plates (7); a threaded rod (11) is rotatably connected inside the square cavity (5); a gear (12) is installed at the upper end of the threaded rod (11); a threaded sleeve (13) is sleeved on the outer surface of the threaded rod (11); the threaded sleeve (13) is slidably connected to the inner wall of the square cavity (5); rollers (14) are installed at both left and right ends of the threaded sleeve (13); A rotating cover (15) is sleeved on the outer surface of the device body (1), and the device body (1) and the rotating cover (15) are rotatably connected. An annular rack (16) is installed on the inner wall of the rotating cover (15), and the annular rack (16) is meshed with a plurality of gears (12). An annular rack (17) is installed on the upper end of the rotating cover (15), and the annular rack (17) is meshed with a gear (18). A rotating rod is installed inside the gear (18), and the rotating rod is rotatably connected to the device body (1).

2. A roadbed multi-point settlement monitoring sensor device according to claim 1, characterized in that: The lower end surface of the insertion rod (4) is in the shape of a spike.

3. A roadbed multi-point settlement monitoring sensor device according to claim 1, characterized in that: The upper and lower end surfaces of the extrusion plate (7) are both arc surfaces.

4. A roadbed multi-point settlement monitoring sensor device according to claim 1, characterized in that: One end of the torsion spring (9) is fixedly connected to the inner wall of the hidden hole (6), and the other end of the torsion spring (9) is fixedly connected to the extrusion plate (7).

5. A roadbed multi-point settlement monitoring sensor device according to claim 1, characterized in that: The lower end surface of the matching block (10) is an inclined surface.

6. A roadbed multi-point settlement monitoring sensor device according to claim 1, characterized in that: A rotating block (19) is installed at the rear end of the rotating rod.

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