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CN-224230972-U - Bending prevention device for probe type sensor of settlement gauge

CN224230972UCN 224230972 UCN224230972 UCN 224230972UCN-224230972-U

Abstract

The utility model discloses a bending prevention device of a settlement gauge probe type sensor, which relates to the technical field of settlement monitoring and comprises a reference tube and a tensioning assembly, wherein the tensioning assembly comprises a shaft sleeve, one side of the shaft sleeve is fixedly connected to the inner annular surface of the reference tube, the inside of the shaft sleeve is rotatably connected with a rotating shaft through a bearing, and the side surface of the rotating shaft is fixedly sleeved with a baffle ring. The setting of unwrapping wire subassembly and monitoring subassembly for soil layer can not cause the influence to both when taking place transverse displacement, and the benchmark pipe can protect unwrapping wire subassembly, and the stay cord realizes the flexible coupling with monitoring subassembly simultaneously, even when pull rod and settlement plate receive transverse effort and take place the deflection, because the flexible coupling of stay cord can not trigger monitoring subassembly, thereby can prevent the measuring error that the deformation of detection position leads to, avoid the structural wear that soil body transverse displacement caused and to the misjudgement of transverse displacement volume simultaneously.

Inventors

  • TONG XILIANG

Assignees

  • 南京基泰土木工程仪器有限公司

Dates

Publication Date
20260512
Application Date
20250722

Claims (7)

  1. 1. The bending-preventing device of the probe type sensor of the settlement meter is characterized by comprising a reference tube (1); the tensioning assembly (2), tensioning assembly (2) includes axle sleeve (201), one side fixed connection of axle sleeve (201) is on the interior anchor ring of benchmark pipe (1), the inside of axle sleeve (201) is connected with pivot (204) through the bearing rotation, the fixed joint of side surface of pivot (204) keeps off ring (205), the side surface activity of axle sleeve (201) has cup jointed jump ring (202), one side fixedly connected with second baffle post (206) of keeping off ring (205), fixedly connected with first baffle post (203) on the interior anchor ring of benchmark pipe (1), two clamping legs of jump ring (202) butt respectively on first baffle post (203) and second baffle post (206); The paying-off assembly (3), the paying-off assembly (3) comprises a pull rope (301), one end of the pull rope (301) is fixedly connected to the side surface of the rotating shaft (204), the pull rope (301) is wound on the side surface of the rotating shaft (204), the other end of the pull rope (301) is fixedly connected with a pull rod (302), one end of the pull rod (302) penetrates through the top of the reference tube (1) and is in sliding connection with the top of the reference tube, the other end of the pull rod (302) is fixedly connected with a sedimentation plate (303), and the sedimentation plate (303) is in sliding connection with the side surface of the reference tube (1); The monitoring assembly (4), the monitoring assembly (4) comprises a shell (401), one side of the shell (401) is fixedly connected with the side surface of the reference tube (1), one end of the rotating shaft (204) penetrates through the reference tube (1) and extends to the inner wall of one side of the shell (401) to be rotationally connected with the rotating shaft through a bearing, one section of the rotating shaft (204) located in the shell (401) is fixedly connected with a permanent magnet (402) on the side surface of the rotating shaft (204), and a coil (403) is fixedly sleeved on the inner ring surface of the shell (401).
  2. 2. The bending prevention device for the settlement gauge probe type sensor is characterized in that an anchor plate (5) is fixedly connected to the bottom of the reference tube (1), and the reference tube (1) and the anchor plate (5) are embedded in a monitoring point.
  3. 3. The bending prevention device for the probe sensor of the settlement gauge according to claim 1, wherein the clamp spring (202) provides a force in the unidirectional rotation direction of the rotating shaft (204), and the pull rope (301) is used for winding and tightening the pull rope (301) through the force applied by the clamp spring (202) to the rotating shaft (204).
  4. 4. A bending prevention device for a settlement gauge probe type sensor according to claim 1, wherein the pull rod (302) moves downwards along with the settlement plate (303) when soil body is settled, and the pull rod (302) moves downwards to pull the pull rope (301) to enable the rotating shaft (204) to rotate reversely.
  5. 5. The bending prevention device for the probe sensor of the settlement gauge according to claim 1, wherein the permanent magnets (402) rotate along with the rotating shaft (204) to generate induced currents to the coils (403), the number of the permanent magnets (402) is multiple, and the permanent magnets are distributed in an annular array with the central axis of the rotating shaft (204).
  6. 6. The bending prevention device for the settlement gauge probe type sensor of claim 1, wherein the number of the baffle rings (205) is two, and the two baffle rings (205) are used for limiting the winding position of the pull rope (301).
  7. 7. The bending prevention device for the probe type sensor of the settlement meter according to claim 1, wherein the settlement plate (303) is buried in the monitoring soil body, and the settlement plate (303) slides up and down along with the depth direction of the reference pipe (1).

Description

Bending prevention device for probe type sensor of settlement gauge Technical Field The utility model relates to the technical field of settlement monitoring, in particular to a bending prevention device for a probe type sensor of a settlement meter. Background The probe type sensor of the settlement meter is a key device for measuring soil mass layered settlement, and mainly realizes high-precision displacement monitoring through a magnetic induction principle, and the core composition of the sensor comprises a magnetic probe, a sedimentation tube with a magnetic ring and a signal processing system, when the probe moves along the sedimentation tube, the magnetic field change of the magnetic ring can be sensed by the probe and converted into an electric signal, and settlement data ‌ ‌ is displayed through acousto-optic prompt or digital output. In prior art patent CN202265815U, through displacement sensor's telescopic link and subside board fixed connection, when subside board takes place to subside, detect by displacement sensor and by wireless module sending signal, because subside board cover is established on the benchmark pipe, in order to ensure the effective displacement of subside board, the slotted hole that the messenger subside board cover was established on the benchmark pipe needs to be greater than the benchmark pipe, make there be the clearance between the two, and the subside board can take place the sideslip in the scope of clearance, when taking place the lateral displacement of soil body, displacement sensor's telescopic link receives transverse effort, easily make the telescopic link take place deformation, perhaps support tightly displacement sensor inner wall, cause wearing and tearing, can influence the accuracy of subside measurement after the telescopic link takes place deformation, we propose a subsidence meter probe sensor anti-bending device for this reason. Disclosure of utility model The utility model aims to provide a bending prevention device for a probe type sensor of a settlement meter, which aims to solve the existing problems in the background technology. In order to achieve the aim, the utility model provides the technical scheme that the bending prevention device of the probe type sensor of the settlement meter comprises a reference tube; The tensioning assembly comprises a shaft sleeve, one side of the shaft sleeve is fixedly connected to the inner ring surface of the reference tube, a rotating shaft is rotatably connected to the inside of the shaft sleeve through a bearing, a baffle ring is fixedly sleeved on the side surface of the rotating shaft, a clamp spring is movably sleeved on the side surface of the shaft sleeve, a second baffle column is fixedly connected to one side of the baffle ring, a first baffle column is fixedly connected to the inner ring surface of the reference tube, and two clamping legs of the clamp spring are respectively abutted to the first baffle column and the second baffle column; The paying-off assembly comprises a pull rope, one end of the pull rope is fixedly connected to the side surface of the rotating shaft, the pull rope is wound on the side surface of the rotating shaft, the other end of the pull rope is fixedly connected with a pull rod, one end of the pull rod penetrates through the top of the reference pipe and is in sliding connection with the top of the reference pipe, the other end of the pull rod is fixedly connected with a sedimentation plate, and the sedimentation plate is in sliding sleeve connection with the side surface of the reference pipe; The monitoring assembly comprises a shell, one side of the shell is fixedly connected to the side surface of the reference tube, one end of the rotating shaft penetrates through the reference tube and extends to the inner wall of one side of the shell to be rotationally connected with the reference tube through a bearing, a section of the rotating shaft positioned in the shell is fixedly connected with a permanent magnet on the side surface of the rotating shaft, and a coil is fixedly sleeved on the inner ring surface of the shell. Preferably, an anchor plate is fixedly connected to the bottom of the reference tube, and the reference tube and the anchor plate are embedded in the monitoring point. Preferably, the clamping spring provides an acting force in the unidirectional rotation direction of the rotating shaft, and the pull rope is used for winding and tensioning the pull rope through the acting force applied by the clamping spring to the rotating shaft. Preferably, the pull rod moves downwards along with the sedimentation plate when the soil body is settled, and the pull rod moves downwards to pull the pull rope to enable the rotating shaft to rotate reversely. Preferably, the permanent magnets rotate along with the rotating shaft to generate induced current for the coil, the permanent magnets are in a plurality, the central axes of the rotating shaft are distributed in an annu