Sensor reversing device applied to inclinometer

Abstract

A sensor reversing device applied to an inclinometer comprises a fixed bin, a motor, a driving belt wheel, a driven belt wheel, a transmission belt, an outer pipe, a guide pipe and a bearing. A probe hole is formed in one side of the lower end of the fixed bin, two bearing outer rings are respectively mounted on the inner side of an outer tube, and the other side of the lower end of the outer tube is mounted at the probe hole side end of the fixed bin; the outer side of the guide pipe is mounted in inner rings of the two bearings, the motor is mounted on the lower side in the fixed bin, the driving pulley is mounted at the lower end of a rotating shaft of the motor, the inner side of the driven pulley is mounted at the lower end outside the guide pipe, and the transmission belt is sleeved between the outer sides of the driving pulley and the driven pulley; micro power switches are respectively mounted on two sides of the lower end of the fixed bin; the lower end of the guide pipe is installed on a top plate, and the storage battery is installed in the fixed bin. The purpose of adjusting the sensor to rotate by 180 degrees can be achieved, the detection requirement of the inclinometer is met, and due to the fact that workers do not need to rotate the sensor manually, convenience is brought to detection personnel, safety risks are reduced, and detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary application equipment of inclinometers, in particular to a sensor commutation device for inclinometer applications. Background Art

[0002] In construction projects, such as deep foundation pit retaining, dam and landslide monitoring projects, inclinometers are used to monitor soil displacement and deformation. A portable inclinometer consists of a controller, a wire feeding rope, an inclinometer sensor, etc. During measurement, the controller controls an electric wire winding device, and the sensor (with two pairs of tensioned rollers on the upper and lower parts, which can ensure that the axial direction of the sensor is parallel to the axial direction inside the inclinometer tube) is put into the bottom of the inclinometer tube (a conduit with a limiting groove) through the wire feeding rope, and then lifted upward. The relevant system of the sensor reads the sensor data every 500 mm (the inclination angle of the axis of the inclinometer tube relative to the plumb line). The internal system of the controller calculates the horizontal displacement value of each section according to the section length and the inclination angle, and then obtains the deformation value of the whole inclinometer tube.

[0003] When the inclinometer sensor works specifically, due to its sensitivity to temperature data (the depth of the inclinometer tube is relatively large, for example, there is water distribution on the outer side of the lower end, so there is a high probability of temperature difference between the upper and lower ends inside), and the influence of other factors (such as mechanical wear, stress release, etc.), there are certain systematic errors in the data collected by the sensor inside the inclinometer tube. Therefore, in actual measurement, according to the operation specifications, after the sensor detects the data at one end inside the inclinometer tube, the angle of the sensor needs to be rotated 180 degrees and sleeved in the guiding groove of the inclinometer tube for another measurement. Finally, the processing system calculates the two sets of measurement data to obtain the final detection data with systematic errors eliminated.

[0004] In the existing technology, when commuting the detection head of the sensor, the detection head needs to be taken out of the inclinometer tube and then the surveyor manually rotates the inclinometer by 180 degrees to achieve the turning of the detection head. Since the sensor is relatively heavy, the above operation mode brings inconvenience to the surveyor, increases the labor intensity, reduces the efficiency, and there is also a risk of the surveyor falling from a height when the detection position is high or uneven. Considering the above factors, it is very necessary to provide a device that can automatically realize the conversion of the detection angle of the sensor. Summary of the Utility Model

[0005] In order to overcome the drawbacks that due to the structural limitations of the existing inclinometer, it is necessary to manually rotate the orientation of the sensor of the inclinometer, which brings inconvenience to the surveyor, increases the labor intensity, and has certain potential safety hazards, the utility model provides a sensor commutation device for inclinometer applications that is used in conjunction with the inclinometer and can automatically turn the detection head by 180 degrees during application, thereby bringing convenience to the surveyor, correspondingly reducing the safety risk, and improving the detection efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] A sensor commutation device applied to an inclinometer, comprising a fixed bin, a motor, a driving pulley, a driven pulley, a transmission belt, an outer fixed tube, a guiding tube, and bearings; characterized in that, on one side of the lower end of the fixed bin, there is a detection hole, one side of the lower end of the outer fixed tube is of an open structure, there are at least two bearings, and the outer rings of the two bearings are respectively fixedly installed on the inner side of the outer fixed tube at an upper and lower interval distance, the lower end of the outer fixed tube on the other side is fixedly installed on the side end of the detection hole of the fixed bin, and the outer fixed tube and the detection hole are in a vertical plane from top to bottom, and the inner diameter of the detection hole of the fixed bin is the same as the inner diameter of the outer fixed tube; the outer side of the guiding tube is fixedly installed in the inner rings of the two bearings, the motor is fixedly installed on the lower side inside the fixed bin, the driving pulley is fixedly installed at the lower end of the rotating shaft of the motor, the inner side of the driven pulley is fixedly installed at the lower outer end of the guiding tube, the lower part of the guiding tube is located outside the lower end of the fixed bin, and the transmission belt is sleeved between the outer sides of the driving pulley and the driven pulley; micro power switches are respectively installed on both sides of the lower end of the outer fixed tube of the fixed bin; a top plate is fixedly installed at the lower end of the guiding tube; the storage battery is installed in the fixed bin, and the power output end of the storage battery is electrically connected in series with the power input end of the motor through a power switch.

[0008] Further, the inner diameter of the lower end of the guiding tube is the same as the inner diameter of the inclinometer tube.

[0009] Further, the internal contacts of the micro power switch are of a normally closed structure, and the ejector rod and the spring plate of the micro power switch are in the same plane.

[0010] Further, upper guiding grooves are respectively arranged at both ends of the inner side of the guiding tube, and the width of the upper guiding grooves is the same as that of the guiding grooves of the inclinometer tube.

[0011] Further, the two micro power switches and the upper guiding grooves on both sides of the guiding tube are respectively in a straight line horizontally.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: This new type is used in combination with an inclinometer. During application, the whole device is placed at the upper end of the inclinometer tube, and the lower end of the guiding tube and the upper end of the inclinometer tube are in the same vertical plane. During detection, under the action of the power switch, the guiding tube is driven to rotate 180 degrees by the motor through the driving belt pulley and the driven belt pulley, so as to achieve the purpose of adjusting the sensor to rotate 180 degrees, meeting the detection requirements of the inclinometer. Since it is not necessary for the staff to manually rotate the sensor, it brings convenience to the detection personnel, reduces the safety risk due to not performing high-altitude operations, and improves the detection efficiency. Description of the Drawings

[0013] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 、 3 This is a schematic diagram of a partial structure of the present utility model.

[0016] Figure 4 This is a circuit diagram of the present utility model. Specific embodiments

[0017] Figure 1 、 2 As shown in Figures 1, 2, 3, and 4, a sensor commutation device for an inclinometer includes a fixed bin 1, a motor 2 (M), a driving pulley 3, a driven pulley 4, a transmission belt 5, an outer fixed tube 6, a guiding tube 7, bearings 8, a power switch 10 (K1), and a storage battery G1 (12); there is an opening 101 at the lower right end of the fixed bin, the left lower end of the outer fixed tube 6 is an open structure 61 (through which the transmission belt can be sleeved outside the driving and driven pulleys), there are two bearings 8, and the outer rings of the two bearings 8 are tightly sleeved on the inner side of the outer fixed tube 6 at intervals up and down. The lower right end of the outer fixed tube 6 is welded to the right side of the opening 101 of the fixed bin, and the outer fixed tube 6 and the opening 101 are in a vertical plane from top to bottom. The inner diameter of the opening of the fixed bin 1 is the same as the inner diameter of the outer fixed tube 6; the outer side of the guiding tube 7 is tightly sleeved in the inner rings of the two bearings 8, the motor 2 is installed in the fixed bin 1 on the left side of the outer fixed tube, and its rotating shaft is located at the lower side. The inner side of the driving pulley 3 is welded to the lower end of the rotating shaft of the motor 2, the inner side of the driven pulley 4 is welded to the middle of the lower outer end of the guiding tube 7, the lower part of the guiding tube 7 is located outside the lower opening of the fixed bin 1, and the transmission belt 4 is annularly sleeved between the outer sides of the driving pulley 3 and the driven pulley 4; on both sides of the lower end of the outer fixed tube 6 of the fixed bin 1, a micro power switch S1 and S2 (with a height lower than that of the driven pulley) are respectively installed, and the spring plates of the two micro power switches S1 and S2 are located at the rear side; a top plate 11 with a distance from the inner end of the outer fixed tube is longitudinally welded to the outer side of the lower end of the guiding tube (located at the lower end of the driven pulley); the storage battery G1 is installed in the fixed bin, the power switch K1 is installed in the component box 13, the component box 13 and the storage battery G1 in the fixed bin are connected through a guiding connection with a length margin. The power output end of the storage battery G1 and the power input ends 1 and 2 of the power switch K1 are respectively connected by wires. The power output end of the power module K1 and the positive and negative power input ends of the motor M are respectively connected by wires. The two micro power switches S1 and S2 are connected in series by wires between the 3rd and 5th feet of the power switch K1 and the positive and negative power input ends of the motor M.

[0018] Figure 1 、 2As shown in FIGS. 3 and 4, the inner diameter of the lower end of the guide tube 7 is the same as that of the inclinometer tube 9. The micro power switches S1 and S2 are of normally closed structure inside, and the ejector rod 11 and the middle parts of the spring plates of the micro power switches S1 and S2 are in a plane. There are respectively an upper guide groove 71 that penetrates vertically up and down in the middle of both ends of the inner side of the guide tube, and the width of the upper guide groove 71 is the same as that of the guide groove 91 of the inclinometer tube. The two micro power switches S1 and S2 and the upper guide grooves 71 on both sides of the guide tube are respectively horizontally in a straight line.

[0019] Figure 1 、 2, as shown in Figures 3 and 4, this new type is used in conjunction with an inclinometer. During application, the entire device is placed on the upper end of the inclinometer tube 9, and the lower end of the guide tube 7 and the upper end of the inclinometer tube 9 are in the same vertical plane (the lower end of the fixed bin 1 is surrounded by support seats with a height lower than the lower end height of the opening 101, so that the lower end of the guide tube 7 and the upper end of the inclinometer tube 9 are spaced 1 cm apart). The sensor 14 suspended by the guiding cable of the electric winding mechanism supporting the controller of the inclinometer is placed into the guide tube 7 from top to bottom, and the two driving wheels 141 at the upper and lower ends of the sensor are respectively located in the two upper guiding grooves 71 of the guide tube. The stable DC 12V power supply output from the G1 pin of the storage battery enters the power input terminal of the power switch K1. During measurement, the measuring personnel control through the power switch of the inclinometer controller (which can be installed in the component box for convenient operation by the staff at a low and safe position), and the electric winding mechanism 15 supporting the controller (located on the inclinometer tube) gradually lowers the sensor 14 straight down into the inclinometer tube. The two driving wheels 141 at the upper and lower ends of the sensor 14 respectively move downward through the upper guiding grooves 71 on the left and right sides of the guide tube and the guiding grooves 91 in the inclinometer tube, and detect the spacing and angle change data at different heights on the inner side of the inclinometer tube 9 through the two driving wheels 141 at the upper and lower ends of the sensor 14. The processing system of the controller can obtain the inclination direction and inclination angle data at different height positions in the inclinometer tube 9 (if the soil body at the corresponding detection point deforms, it will cause displacement of the inclinometer tube, and then it will no longer be in a vertical state, so it will cause angle changes in the two driving wheels at the upper and lower ends of the sensor, and then the rotating shafts of the two driving wheels will rotate clockwise or counterclockwise and output the angle change data to the processing system). When the inclinometer is working specifically, because the internal electronic components of its sensor are relatively sensitive to temperature data (the depth of the inclinometer tube is relatively large, such as there is water distribution on the outer side of the lower end, and the probability of temperature difference between the upper and lower ends inside), and the influence of other factors (such as during the process of putting the sensor into the inclinometer tube, the power supply of the electric winding mechanism is unstable, resulting in jitter when unwinding the cable, and then causing the sensor to shake, etc.), there is a probability of error in the data collected by the sensor 14 in the inclinometer tube. Therefore, in actual measurement, the operation specification requires that after the sensor detects the data at one end inside the inclinometer tube, the sensor needs to be rotated 180 degrees and sleeved in the guiding groove of the inclinometer tube for another measurement. Finally, the processing system compares the measurement data on both sides, and when the data from the two detections are consistent, the final detection data is obtained and recorded (or the average value of the data from the two detections is taken). After the subsequent measurement is completed, the measuring personnel can read the data displayed on the control system display screen to understand whether the measurement point is inclined (including the inclination data, etc.).When the sensor needs to be rotated 180 degrees to the left or right, first, the sensor 14 is gradually pulled up vertically from the bottom into the guide tube 7 by the supporting electric winding mechanism (located on the inclinometer tube) of the inclinometer controller. The lower end of the sensor 14 is separated from the upper end of the inclinometer tube 9. The staff toggles the handle of the power switch K1 to the left or right. The 1st and 2nd pins and the 3rd and 4th pins or the 5th and 6th pins of the power switch K1 are respectively connected. In this way, the positive and negative or negative and positive power input terminals of the motor M are energized. Its rotating shaft drives the driven pulley 4 to rotate through the driving pulley 3 and the transmission belt 5. The driven pulley 4 drives the guide tube to rotate clockwise or counterclockwise. After the guide tube drives the sensor located inside it to rotate 180 degrees clockwise or counterclockwise, the left or right end of the top plate 11 contacts the spring plate of the left end power switch S1 or the right end power switch S2. The internal contacts of the power switch S1 or S2 are opened. In this way, the motor M loses power, and the guide tube and the sensor no longer move. Then, the surveyor gradually lowers the sensor 14 vertically from the top into the inclinometer tube 9 through the supporting electric winding mechanism (located on the inclinometer tube) of the inclinometer controller (at this moment, the sensor has rotated 180 degrees, and the original left end is at the right end and the right end is at the left end). The two transmission wheels 141 at the upper and lower ends of the sensor respectively move downward through the guide grooves 91 inside the inclinometer tube to detect the distance and angle change data at different heights inside the inclinometer tube 9. After the detection is completed, the surveyor pulls the sensor out of the inclinometer tube upward through the controller control and the electric winding mechanism 15 supporting the controller, and then removes the fixed bin to complete all the measurement operations. This application brings convenience to the testers because it does not require the staff to manually rotate the sensor, reduces the safety risks due to not working at heights, and improves the detection efficiency. The storage battery G1 is a lithium storage battery with a model of 24V / 20Ah; the power of the motor M is 100W.

[0020] Those skilled in the art should understand that although this specification is described according to the embodiments, not all embodiments only contain an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that those skilled in the art can understand. Therefore, the protection scope of this application is defined by the claims.

Claims

1. A sensor commutation device applied to an inclinometer, comprising a fixed bin, a motor, a driving pulley, a driven pulley, a transmission belt, an outer fixed tube, a guide tube, and a bearing; characterized in that, One side of the lower end of the fixed bin has a detection hole. One side of the lower end of the outer fixed pipe is an open structure. There are at least two bearings. The outer rings of the two bearings are spaced vertically and are respectively fixedly installed on the inner side of the outer fixed pipe. The other side of the lower end of the outer fixed pipe is fixedly installed on the side end of the detection hole of the fixed bin, and the outer fixed pipe and the detection hole are in a vertical plane from top to bottom. The inner diameter of the detection hole of the fixed bin is the same as the inner diameter of the outer fixed pipe. The outer side of the guide pipe is fixedly installed in the inner rings of the two bearings. The motor is fixedly installed on the lower side inside the fixed bin. The driving pulley is fixedly installed at the lower end of the rotating shaft of the motor. The inner side of the driven pulley is fixedly installed at the lower outer end of the guide pipe. The lower part of the guide pipe is located outside the lower end of the fixed bin. The transmission belt is sleeved between the outer sides of the driving pulley and the driven pulley. Micro power switches are respectively installed on both sides of the lower end of the outer fixed pipe of the fixed bin. The lower end of the guide pipe is fixedly installed with a top plate. The storage battery is installed inside the fixed bin. The power output end of the storage battery is electrically connected in series with the power input end of the motor through a power switch.

2. The sensor commutation device for inclinometer application according to claim 1, wherein, The inner diameter of the lower end of the guide pipe is the same as the inner diameter of the inclinometer tube.

3. The sensor commutation device for inclinometer application according to claim 1, characterized in that, The internal contacts of the micro power switch are of normally closed structure, and the ejector rod and the spring plate of the micro power switch are in a plane.

4. The sensor commutation device for inclinometer application according to claim 1, wherein There are upper guide grooves at both ends of the inner side of the guide pipe, and the widths of the upper guide grooves are the same as those of the guide grooves of the inclinometer tube.

5. A sensor commutation device for inclinometer applications according to claim 4, characterized in that The two micro power switches and the upper guide grooves on both sides of the guide pipe are respectively horizontally in a straight line.

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