Geotechnical engineering underground water level monitor

Abstract

The utility model discloses an underground water level monitor for geotechnical engineering, which relates to the technical field of water level monitoring and comprises a probe rod body and a protective sleeve sleeved outside the probe rod body, and the top end of the probe rod body is provided with a traction rope penetrating out of an annular seat at the top of the protective sleeve; an overturning frame is rotationally installed on the side face of the bottom of the protective sleeve, a floating plate and a plugging frame are arranged at the two ends of the overturning frame respectively, and the plugging frame is arranged at the end, close to the protective sleeve, of the overturning frame; a floating plate is arranged at the upper part of the floating plate; by means of the torque change design of the floating plate, the overturning frame and the plugging frame, when the floating plate does not enter water, the plugging plate covers the open groove in the lower end of the protective sleeve, and rock soil and other sundries can be prevented from entering the protective sleeve to affect the probe rod; when the floating plate enters water, the blocking plate is moved away, so that the probe rod can be in contact with the water body in time to monitor the water level.

Description

TECHNICAL FIELD

[0001] The utility model relates to water level monitoring technical field, specifically is a kind of geotechnical engineering underground water level monitor. BACKGROUND

[0002] Water level monitor is the monitoring and measuring equipment commonly used in geotechnical engineering, for monitoring the change of underground water level, to avoid the adverse effects of water level dramatic change on geotechnical engineering, at the same time, also can judge the overall disturbance situation of underground water in the construction process of geotechnical engineering by observing the change of underground water level in monitoring area.

[0003] However, the underground water level monitor used in the market currently, when using water level monitor, probe needs to be lowered into underground water to monitor underground water;During the process of lowering probe, it is easy to rub and collide with rock particles of inner wall of lowering channel, so that scratch, dent and other damages appear on its surface, and it can further penetrate, so that monitoring components inside probe are affected, and the accuracy of monitoring result is affected. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model provides a kind of geotechnical engineering underground water level monitor.

[0005] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A kind of geotechnical engineering underground water level monitor, including probe body and the protective sleeve of probe body outside, the top of the probe body is provided with the traction rope from the annular seat of the top of protective sleeve;

[0007] The side of the bottom of the protective sleeve is rotatably installed with turnover frame, and the both ends of the turnover frame are respectively provided with floating plate and blocking frame, wherein the blocking frame is arranged at one end of the turnover frame close to the protective sleeve;

[0008] The upper portion of the floating plate is provided with floating plate;

[0009] When the floating plate does not enter water, the moment of one end of the floating plate of the turnover frame is greater than the moment of one end of the blocking frame, so that one end of the blocking frame is upturned, and the blocking plate is arranged on the blocking frame and covers the opening slot at the lower end of the protective sleeve;

[0010] After the floating plate enters water, the floating plate is subjected to the buoyancy of water, and the moment of one end of the floating plate of the turnover frame is less than the moment of one end of the blocking frame, so that one end of the blocking frame moves downward, and the blocking plate moves away from the lower end of the protective sleeve.

[0011] Preferably, the lower portion of the floating plate is provided with a counterweight box, the counterweight box is provided with water-soluble counterweight particles, and water-permeable holes are arranged on both sides of the counterweight box.

[0012] Preferably, the water-permeable hole is arranged as a square through hole, and the water-permeable hole is arranged at one end of the side of the counterweight box away from the turnover frame; a sealing plug is mounted on the end face of the counterweight box away from the turnover frame through a threaded structure.

[0013] Preferably, the turnover frames are uniformly arranged in multiple groups, the blocking plates are arranged as fan-shaped plates, and floating air bags are arranged on the outer side of the protective sleeve.

[0014] Preferably, a rotating seat is arranged on the side of the bottom end of the protective sleeve, the upper part of the turnover frame is rotationally connected with the rotating seat through a rotating block, and a triangular reinforcing plate is arranged between the upper part of the rotating seat and the protective sleeve.

[0015] Preferably, a limiting block is arranged on the inner wall of the protective sleeve, and the blocking plate and the central axis of the protective sleeve are perpendicular to each other when the blocking plate is turned to abut against the limiting block.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The protective sleeve arranged on the outer part of the probe rod body can reduce the scratches, abrasion and other damages of the probe rod in a complex rock-soil environment, such as avoiding the direct contact of sharp rock particles with the probe rod, protecting the internal monitoring components, and improving the reliability and continuity of the monitoring data.

[0018] 2. The torque change design of the floating plate, the turnover frame and the blocking frame can prevent the rock-soil and other sundries from entering the protective sleeve and affecting the probe rod when the floating plate does not enter the water, and can make the probe rod timely contact with the water body for water level monitoring when the floating plate enters the water, so as to automatically adjust the monitoring state according to the water level condition, and improve the timeliness and accuracy of the monitoring. BRIEF DESCRIPTION OF DRAWINGS

[0019] The disclosed content of the utility model will be explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0020] Figure 1 It is a structure schematic of the utility model Figure 1 ;

[0021] Figure 2 It is a structure schematic of the utility model Figure 2 ;

[0022] Figure 3 It is a floating plate floating state schematic of the utility model;

[0023] Figure 4 It is a turnover frame structure schematic of the utility model;

[0024] Figure 5 The utility model discloses a probe rod body, protective sleeve structure schematic diagram.

[0025] In the drawing, the annotation shows: 1, probe rod body, 11, tow rope, 2, protective sleeve, 21, float air bag, 22, annular seat, 23, rotary seat, 24, reinforcing plate, 25, limit block, 3, turnover frame, 31, floating plate, 32, plugging frame, 33, plugging plate, 34, rotary block, 4, floating plate, 5, counterweight box, 51, water-permeable hole, 52, sealing plug. DETAILED DESCRIPTION

[0026] It is easy to understand that according to the technical scheme of the utility model, a plurality of structure modes and implementation modes that can be replaced with each other can be proposed by the general technical personnel in the art without changing the utility model essential spirit. Therefore, the following specific embodiments and drawings are only exemplary description to the technical scheme of the utility model, and should not be regarded as the whole of the utility model or regarded as the limitation or restriction of the technical scheme of the utility model.

[0027] EMBODIMENT

[0028] As Figure 1 shown, a kind of geotechnical engineering groundwater level monitor, mainly by probe rod body 1, protective sleeve 2, turnover frame 3, floating plate 4 and counterweight box 5 etc. component composition.

[0029] Probe rod body 1 as core monitoring component, its top end is connected with tow rope 11. Tow rope 11 is from the annular seat 22 of protective sleeve 2 top, by tow rope 11, can conveniently the whole monitor is placed into monitoring hole or is taken out from hole, it is convenient to install and maintain.

[0030] Probe rod body 1 is provided with conductive sensor, utilizes the conductivity of water, can after contacting water, water will make the conductivity of sensor change, and conductive sensor generates electric signal by detecting this conductivity change. Staff receives electric signal and determines water level height according to the length of lowering tow rope 11, and lead for transmitting signal is inlaid in tow rope 11.

[0031] Protective sleeve 2 is set to probe rod body 1 outside, provides protection for probe rod body 1, reduces the damage received in complex rock-soil environment. Protective sleeve 2 outside is provided with float air bag 21, and float air bag 21 can increase the buoyancy of protective sleeve 2 whole in water, so that it can better keep position stable when groundwater level changes.

[0032] As Figure 2 , Figure 3As shown, the bottom end side of the protective sleeve 2 is provided with a rotating seat 23, and the rotating seat 23 is rotationally connected with the turnover frame 3 through a rotating block 34 to realize the rotating function of the turnover frame 3 relative to the bottom of the protective sleeve 2. In addition, a triangular reinforcing plate 24 is arranged between the upper part of the rotating seat 23 and the protective sleeve 2, which enhances the connection strength between the rotating seat 23 and the protective sleeve 2, and ensures that the rotating structure of the turnover frame 3 is stable and reliable during long-term use.

[0033] The turnover frame 3 is uniformly provided with multiple groups, and the two ends thereof are respectively provided with a floating plate 31 and a blocking frame 32. The blocking frame 32 is arranged close to one end of the protective sleeve 2, and a blocking plate 33 is arranged on the blocking frame 32. The blocking plate 33 is arranged as a fan-shaped plate. When the blocking plate 33 blocks the opening slot at the lower end of the protective sleeve 2, it can effectively prevent the rock-soil particles, sundries and the like from entering the inside of the protective sleeve 2, thereby avoiding damaging the probe rod body 1.

[0034] The upper part of the floating plate 31 is connected with a floating plate 4, and the floating plate 4 can generate buoyancy in water, which serves as a key factor for triggering the action of the turnover frame 3. When the floating plate 4 does not enter the water, the torque at one end of the floating plate 31 of the turnover frame 3 is greater than the torque at one end of the blocking frame 32, and the one end of the blocking frame 32 is upturned. At this time, the blocking plate 33 covers the opening slot at the lower end of the protective sleeve 2, thereby playing a protection role. When the floating plate 4 enters the water, it is subjected to the buoyancy of the water, so that the torque at one end of the floating plate 31 of the turnover frame 3 is less than the torque at one end of the blocking frame 32, and the one end of the blocking frame 32 is lowered, and then the blocking plate 33 is moved away from the lower end of the protective sleeve 2, and the lower end of the probe rod body 1 can be in contact with the water body, thereby starting the water level monitoring work.

[0035] As shown in the figure, Figure 4 The lower part of the floating plate 31 is provided with a counterweight box 5, and the counterweight box 5 is filled with water-soluble counterweight particles. The purpose of the counterweight box 5 is mainly to increase the torque at one end of the floating plate 31 in the state of not entering the water, so that the torque thereof is greater than the torque at the other end, thereby ensuring the stability of the blocking plate 33 during the lowering process.

[0036] The two sides of the counterweight box 5 are provided with water permeable holes 51, which are square through holes and are located at the end of the side surface of the counterweight box 5 away from the turnover frame 3. Such design can make water pass through the water permeable holes 51 into the counterweight box 5, contact the water-soluble counterweight particles and dissolve them, thereby adjusting the weight of the counterweight box 5, and then reducing the torque at one end of the floating plate 31, so that it can be less than the torque at the other end, thereby ensuring that it can be turned over by the buoyancy of the floating plate 4.

[0037] On the end face of the counterweight box 5 away from the turnover frame 3, a sealing plug 52 is installed through a threaded structure. When it is necessary to replace or supplement the water-soluble counterweight particles, the sealing plug 52 can be unscrewed for operation. By adjusting the amount and dissolution rate of the water-soluble counterweight particles in the counterweight box 5, the moment balance of the turnover frame 3 can be further optimized, and it is ensured that the sealing plate 33 accurately acts under different water level conditions.

[0038] The water-soluble counterweight particles are particles that are easy to dissolve, have relatively large density, are chemically stable and environmentally non-polluting and harmless, and can be, for example, sodium chloride, sodium chloride, potassium dihydrogen phosphate, etc., and are selected according to actual conditions.

[0039] As shown in Figure 5 A limiting block 25 is arranged on the inner wall of the protective sleeve 2, and when the sealing plate 33 is turned to be in close contact with the limiting block 25, the sealing plate 33 is perpendicular to the central axis of the protective sleeve 2. The limiting block 25 serves to limit the turning angle of the sealing plate 33, and ensures that the sealing plate 33 seals at a stable position during sealing, thereby improving the stability and reliability of the monitoring instrument.

[0040] The technical scope of the utility model is not limited to the content in the above description, and those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical thought of the utility model, and these deformations and modifications shall all belong to the protection scope of the utility model.

Claims

1. A geotechnical groundwater level monitor characterized by: The utility model provides a kind of probe rod, including probe rod body (1) and protective sleeve (2) of sleeve outside probe rod body (1), the probe rod body (1) top is provided with traction rope (11) from the annular seat (22) of the top of protective sleeve (2); Rotary mounting is provided with turnover frame (3) on the side of the bottom of protective sleeve (2), both ends of the turnover frame (3) are provided with floating plate (31) and blocking frame (32) respectively, wherein the blocking frame (32) is arranged at the end of the turnover frame (3) close to the protective sleeve (2); Upper portion of the floating plate (31) is provided with floating plate (4); When the floating plate (4) does not enter water, the torque of one end of the floating plate (31) of the turnover frame (3) is greater than the torque of one end of the blocking frame (32), so that one end of the blocking frame (32) is upturned, and the blocking plate (33) arranged on the blocking frame (32) covers the opening slot at the lower end of the protective sleeve (2); After the floating plate (4) enters water, the floating plate (4) is subjected to the buoyancy of water, the torque of one end of the floating plate (31) of the turnover frame (3) is less than the torque of one end of the blocking frame (32), so that one end of the blocking frame (32) moves downward, and the blocking plate (33) moves away from the lower end of the protective sleeve (2).

2. The geotechnical groundwater level monitor according to claim 1, characterized in that: Lower portion of the floating plate (31) is provided with counterweight box (5), water-soluble counterweight particles are arranged in the counterweight box (5), and water-permeable holes (51) are arranged on both sides of the counterweight box (5).

3. A geotechnical groundwater level monitor according to claim 2, wherein: The water-permeable hole (51) is a square through hole, and the water-permeable hole (51) is arranged at the end of the side of the counterweight box (5) away from the turnover frame (3);A sealing plug (52) is installed on the end face of the counterweight box (5) away from the turnover frame (3) through a threaded structure.

4. The groundwater level monitor for geotechnical engineering according to any one of claims 1 to 3, characterized in that: The turnover frame (3) is uniformly provided with multiple groups, and the blocking plate (33) is provided as a fan-shaped plate;The outer side of the protective sleeve (2) is provided with a floating air bag (21).

5. The groundwater level monitor for geotechnical engineering according to any one of claims 1 to 3, characterized in that: Rotary seat (23) is arranged on the side of the bottom end of the protective sleeve (2), and the upper portion of the turnover frame (3) is rotatably connected with the rotary seat (23) through a rotary block (34);A triangular reinforcing plate (24) is arranged between the upper portion of the rotary seat (23) and the protective sleeve (2).

6. The groundwater level monitor for geotechnical engineering according to any one of claims 1 to 3, characterized in that: Limiting block (25) is arranged on the inner wall of the protective sleeve (2), and when the blocking plate (33) is turned to be mutually attached with the limiting block (25), the blocking plate (33) and the central axis of the protective sleeve (2) are mutually perpendicular.

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