CN212030689U

CN212030689U - Automatic water level monitoring device in foundation pit water level observation well

Info

Publication number: CN212030689U
Application number: CN202021116365.8U
Authority: CN
Inventors: 丁彬; 支乾坤
Original assignee: Wuxi New Blueprint Mapping Technology Co ltd
Current assignee: Wuxi New Blueprint Mapping Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-11-27
Anticipated expiration: 2030-06-16

Abstract

The utility model relates to a water level automatic monitoring device in foundation ditch water level observation well, it includes the observation well casing of vertical setting, survey the top of well casing and placed the measurement seat, it has the holding tank to open one side of observing the well casing to measure the seat, be equipped with in the holding tank and be horizontally dwang, it has the locating hole that is used for holding the dwang both ends to open on the measurement seat, the dwang rotates to be connected in the locating hole, it has flexible wind spring to wind on the dwang, the one end fixed connection of flexible wind spring is on the dwang, other end fixedly connected with is cursory, the cursory has the plummet through the rope system, the diapire of holding tank is connected with displacement sensor, the. The utility model discloses a displacement sensor's setting has the advantage that can carry out the monitoring to water level in the water level observation well.

Description

Automatic water level monitoring device in foundation pit water level observation well

Technical Field

The utility model belongs to the technical field of the technique and specifically relates to a water level automatic monitoring device in foundation ditch water level observation well is related to.

Background

When the foundation pit dewatering construction is carried out in an urban building group, in order to ensure the safety of existing buildings, underground pipelines and other facilities outside the foundation pit, the water level of the existing buildings outside the foundation pit and underground pipelines must be ensured to be reduced within an allowable safety range. Therefore, a plurality of underground water level observation wells are often arranged outside the foundation pit and near the existing building to observe the underground water level. Once the underground water level is lowered below the safety line, the precipitation of the foundation pit is immediately stopped or underground water recharging treatment is carried out outside the foundation pit so as to ensure the safety of the existing building.

Chinese patent with publication number CN104132714A discloses an ultrasonic water level automatic monitoring device, including setting up the stand on the river bank, the top of stand is equipped with chooses the empty crossbeam of erectting the river course top of gathering, the riverbed of crossbeam below is gone up to water and is equipped with horizontally concrete foundation, be equipped with two at least vertical guide cables between crossbeam and the concrete foundation, be equipped with the floater that floats on the surface of water on the guide cable, the floater is waterproof sealing structure, floater bottom surface middle part cavity, set up ultrasonic transducer in the cavity, still be equipped with the battery that provides the electric energy in the floater, handle the telemetering measurement terminating machine of data and transmitting signal, the floater is towards south one side still is equipped with the solar panel who charges for the battery.

Before the ultrasonic water level automatic monitoring device is used, an upright column and a cross beam are erected, then one end of a guide lock is fixed on a concrete foundation, and a floating ball and a tension spring are installed on the upright column and the cross beam. The floater floats on the surface of water, and when the water level in river course rose and descended, the floater floated about following the liquid level height of water level in the river course, detected the water level in river course through the floater.

However, when the water level in the water level observation well of the urban building foundation pit is monitored, the process of arranging the concrete foundation and the guide lock is difficult due to the limited size of the water level observation well, and the water level observation well needs to be rearranged every time when the water level observation well is replaced. Therefore, the automatic ultrasonic water level monitoring device is not suitable for monitoring the water level in the foundation pit water level observation well, and has obvious defects.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a water level automatic monitoring device in foundation ditch water level observation well has the advantage of carrying out the monitoring to water level in the water level observation well.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a water level automatic monitoring device in foundation ditch water level observation well, the observation well casing that includes vertical setting, survey the top of well casing and placed the measurement seat, it has the holding tank to open one side of hugging closely the observation well casing to measure the seat, be equipped with in the holding tank and be horizontally dwang, it has the locating hole that is used for holding the dwang both ends to open on the measurement seat, the dwang rotates to be connected in the locating hole, around there being flexible coil spring on the dwang, the one end fixed connection of flexible coil spring is on the dwang, and other end fixedly connected with is cursory, cursory has the plummet through the rope system, be connected with displacement sensor on the lateral wall of holding tank, the displacement sensor electricity is connected.

Through adopting above-mentioned technical scheme, survey personnel at first drop into the plumb bob in the inspection shaft, the plumb bob receives gravity and falls to the well in nature, and it is tensile at the flexible wind spring of the in-process that falls, because the cursory has better buoyancy, consequently can float on the surface of water. A measurer places the measuring seat on the observation well pipe, the telescopic coil spring has an automatic contraction function, and the telescopic coil spring which is pulled out more in the plumb bob dropping process can be automatically wound. The displacement sensor is a digital laser displacement sensor, laser pulses are transmitted through the displacement sensor, the buoy can reflect the laser pulses, the displacement sensor can receive the reflected pulses and calculate the distance between the buoy and the displacement sensor, and therefore the height of the water level in the observation well is measured. When the water level changes, the displacement sensor can also measure the height of the water level according to the change of the water level. The utility model discloses a displacement sensor's setting can detect the water level in the water level observation well.

The present invention may be further configured in a preferred embodiment as: one side of the measuring seat, which is close to the observation well pipe, is provided with a circular inserting groove, and one end of the observation well pipe, which is positioned on the ground, is inserted into the inserting groove.

Through adopting above-mentioned technical scheme, the inserting groove has limiting displacement to measuring the seat, can reduce the observation seat and receive the possibility that external force influences takes place the skew, is favorable to improving the accuracy of water level monitoring.

The present invention may be further configured in a preferred embodiment as: the inserting grooves are coaxially provided with a plurality of inserting grooves, and the diameters of the inserting grooves are gradually increased along the direction far away from the axis.

Through adopting above-mentioned technical scheme, the size of the used observation well pipe of different building sites probably varies, and the inserting groove sets up a plurality ofly and the diameter grow gradually makes the observation well pipe that the measuring seat can match multiple not unidimensional, has improved monitoring devices's versatility.

The present invention may be further configured in a preferred embodiment as: one end of the rotating rod is fixedly connected with a rotating handle.

Through adopting above-mentioned technical scheme, after monitoring devices used, monitoring personnel can pull out the plumb bob and observe the well casing through rotating the twist grip, regular and accomodate the plumb bob.

The present invention may be further configured in a preferred embodiment as: fixedly connected with fixed strip on the lateral wall of measuring seat, the one end of fixed strip is opened along its length direction has the mounting hole, spacing inserted bar is worn to be equipped with by the slip in the mounting hole, the elastic pressure spring of contradicting between the hole bottom of spacing inserted bar and mounting hole, open one side of fixed strip has the groove of stirring, stir the groove and be on a parallel with the mounting hole, stir the groove and communicate with each other with the mounting hole, stir the inslot cunning and move have with spacing inserted bar fixed connection's shifting block, it has the spacing hole that supplies spacing inserted bar male to open on the dwang.

Through adopting above-mentioned technical scheme, the thrust of elasticity pressure spring makes its grafting in spacing downthehole on spacing inserted bar, has reduced dwang pivoted possibility, has reduced monitoring devices's handling in, the flexible coil spring receives the pulling force of plummet and the possibility of pulling out.

The present invention may be further configured in a preferred embodiment as: one end of the poking groove, which is far away from the rotating rod, is provided with a limiting opening for limiting the poking block, and the limiting insertion rod is rotatably connected with the mounting hole.

Through adopting above-mentioned technical scheme, when monitoring devices was in operating condition, monitoring personnel were manual to dial the shifting block to spacing intraoral, had reduced spacing inserted bar and has contradicted on the dwang, blockked the rotation of dwang, produced the possibility of influence to measurement accuracy.

The present invention may be further configured in a preferred embodiment as: and rotating bearings are fixedly sleeved on the rod bodies of the rotating rods on the two sides of the telescopic coil spring respectively, and are in interference fit in the positioning holes.

Through adopting above-mentioned technical scheme, rolling bearing's setting makes the rotation of dwang more smooth and easy for flexible coil spring can be more sensitive pull out and retract according to the change of water level, is favorable to improving the degree of accuracy of water level monitoring.

The present invention may be further configured in a preferred embodiment as: and the rod body of the rotating rod between the telescopic coil spring and the two rotating bearings is respectively fixedly sleeved with a limiting ring, and the limiting rings and the telescopic coil spring are arranged in a clearance manner.

Through adopting above-mentioned technical scheme, the stop ring has the constraint effect to the pulling out and the withdrawal of flexible coil spring for flexible coil spring can neatly coil on the dwang, and cross coiling leads to flexible coil spring to cause the possibility of damaging when having reduced flexible coil spring and having pulled out and withdraw.

To sum up, the utility model discloses a following beneficial technological effect: the displacement sensor emits laser pulses, the buoy can reflect the laser pulses, and the displacement sensor can receive the reflected laser pulses and calculate the height of the water level.

Drawings

Fig. 1 is a schematic structural diagram for embodying the present invention;

FIG. 2 is a schematic view for showing the connection relationship among the fixing bar, the toggle groove, the toggle block and the elastic compression spring;

FIG. 3 is a sectional view showing the connection relationship among the inserting groove, the accommodating groove, the plumb bob and the float.

In the figure, 1, a well pipe is observed; 2. a measuring seat; 3. accommodating grooves; 4. rotating the rod; 5. positioning holes; 6. a telescopic coil spring; 7. floating; 8. a plumb bob; 9. a displacement sensor; 10. a controller; 11. inserting grooves; 12. rotating the handle; 13. a fixing strip; 14. mounting holes; 15. a limiting inserted rod; 16. an elastic pressure spring; 17. a poking groove; 18. shifting blocks; 19. a limiting hole; 20. a limiting port; 21. a rotating bearing; 22. a limit ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a water level automatic monitoring device in foundation ditch water level observation well, including the observation well casing 1 of vertical setting, survey seat 2 has been placed at the top of observation well casing 1. One side of the measuring seat 2, which is close to the observation well pipe 1, is provided with a circular inserting groove 11, and one end of the observation well pipe 1, which is positioned on the ground, is inserted in the inserting groove 11.

Referring to fig. 1 and 2, when the monitoring device is in operation, slippage may occur at the top of the observation well pipe 1 under the influence of external forces, resulting in a reduced accuracy of the measurement. And inserting groove 11 has limiting displacement to measuring seat 2, can reduce the possibility that the observation seat receives external force to influence and takes place the skew, is favorable to improving the accuracy of water level monitoring.

Referring to fig. 1 and 2, a plurality of inserting grooves 11 are coaxially arranged, and the diameter of the plurality of inserting grooves 11 gradually increases along the direction away from the axis. The sizes of the observation well pipes 1 used in different construction sites may be different, the insertion grooves 11 are arranged in a plurality and the diameters of the insertion grooves gradually increase, so that the measuring seat 2 can be matched with the observation well pipes 1 with different sizes, and the versatility of the monitoring device is improved.

Referring to fig. 1 and 3, a holding groove 3 is formed in one side of the measuring seat 2, which is close to the observation well pipe 1, and a horizontal rotating rod 4 is arranged in the holding groove 3. The measuring seat 2 is provided with positioning holes 5 for accommodating two ends of the rotating rod 4, and the rotating rod 4 is rotatably connected in the positioning holes 5.

Referring to fig. 1 and 3, a telescopic coil spring 6 is wound on the rotating rod 4, one end of the telescopic coil spring 6 is glued on the rotating rod 4, the other end is glued with a float 7, and the float 7 is tied with a plumb bob 8 through a rope. The side wall of the accommodating groove 3 is fixedly connected with a displacement sensor 9 through a bolt, and the displacement sensor 9 is electrically connected with a controller 10 positioned outside the measuring seat 2.

Referring to fig. 1 and 3, firstly, a measurer puts a plumb bob 8 into an observation well pipe 1, the plumb bob 8 naturally falls into a well under the action of gravity, a telescopic coil spring 6 is stretched in the falling process, and the buoy 7 has better buoyancy and can float on the water surface. After a measurer places the measuring seat 2 on the observation well pipe 1, the telescopic coil spring 6 has an automatic contraction function, and the telescopic coil spring 6 which is pulled out more in the falling process of the plumb bob 8 can be automatically wound.

Referring to fig. 1 and 3, the displacement sensor 9 is a digital laser displacement sensor, the displacement sensor 9 emits laser pulses, the float 7 can reflect the laser pulses, and the displacement sensor 9 can receive the reflected pulses and calculate the distance between the float 7 and the displacement sensor 9, so as to measure the height of the water level in the observed water well. When the water level changes, the displacement sensor 9 can also measure the height of the water level according to the change of the water level.

Referring to fig. 1 and 3, the shaft bodies of the rotating levers 4 on both sides of the telescopic coil spring 6 are respectively fixedly sleeved with a rotating bearing 21, and the rotating bearings 21 are in interference fit in the positioning holes 5. The rotation of the rotating rod 4 is smoother due to the arrangement of the rotating bearing 21, so that the telescopic coil spring 6 can be pulled out and retracted more sensitively according to the change of the water level, and the improvement of the accuracy of water level monitoring is facilitated.

Referring to fig. 1 and 3, a limiting ring 22 is respectively sleeved on the shaft body of the rotating rod 4 between the telescopic coil spring 6 and the two rotating bearings 21, the limiting ring 22 is welded and fixed with the rotating rod 4, and the limiting ring 22 and the telescopic coil spring 6 are arranged in a clearance. The limiting ring 22 has a restraining effect on the pulling out and retracting of the telescopic coil spring 6, so that the telescopic coil spring 6 can be orderly wound on the rotating rod 4, and the possibility of damage to the telescopic coil spring 6 caused by cross winding when the telescopic coil spring 6 is pulled out and retracted is reduced.

Referring to fig. 1, a rotating handle 12 is welded to one end of the rotating rod 4. After the monitoring device is used, the monitoring personnel can pull out the plumb 8 from the observation well pipe 1 by rotating the rotating handle 12, and the plumb 8 is structured and stored.

Referring to fig. 1 and 2, a vertically arranged fixing strip 13 is welded on the outer side wall of the measuring seat 2, and the fixing strip 13 is located above the rotating rod 4. One end of the fixing strip 13 is provided with a mounting hole 14 along the length direction, and a limiting insertion rod 15 is slidably arranged in the mounting hole 14 in a penetrating manner. The rotating rod 4 is provided with a limit hole 19 for inserting the limit insert rod 15. The limiting insertion rod 15 is inserted into the limiting hole 19, one end of the limiting insertion rod is arranged in a conical mode, and the conical arrangement enables the limiting insertion rod 15 to be inserted into the limiting hole 19 more smoothly.

Referring to fig. 1 and 2, an elastic pressure spring 16 is abutted between the limiting inserted rod 15 and the bottom of the mounting hole 14, a toggle groove 17 is formed in one side of the fixing strip 13, the toggle groove 17 is parallel to the mounting hole 14, the toggle groove 17 is communicated with the mounting hole 14, and a toggle block 18 welded with the limiting inserted rod 15 slides in the toggle groove 17. The thrust of the elastic pressure spring 16 acts on the limiting insertion rod 15 to enable the limiting insertion rod to be inserted into the limiting hole 19, so that the possibility of rotation of the rotating rod 4 is reduced, and the possibility that the telescopic coil spring 6 is pulled out by the pulling force of the plumb bob 8 in the carrying process of the monitoring device is reduced.

Referring to fig. 1 and 2, a position of the toggle groove 17 away from the rotating rod 4 is provided with a limiting opening 20 for limiting the toggle block 18, and the limiting inserted rod 15 is rotatably connected with the mounting hole 14. When monitoring devices is in operating condition, monitoring personnel have reduced spacing inserted bar 15 and have contradicted on dwang 4 in shifting block 18 is manual to spacing mouthful 20, obstruct the rotation of dwang 4, the possibility to measuring accuracy production influence.

The implementation principle of the embodiment is as follows: the staff at first drops into plumb bob 8 and observes in well casing 1, and plumb bob 8 receives gravity and falls to the well in the nature, and flexible coil spring 6 is tensile in the in-process that falls, because cursory 7 has better buoyancy, consequently can float on the surface of water. A measurer places the measuring seat 2 on the observation well pipe 1, the telescopic coil spring 6 has an automatic contraction function, and the telescopic coil spring 6 which is pulled out more in the falling process of the plumb bob 8 can be automatically wound. The laser pulse is transmitted through the displacement sensor 9, the buoy 7 can reflect the laser pulse, the displacement sensor 9 can receive the reflected pulse and calculate the distance between the buoy 7 and the displacement sensor 9, and therefore the height of the water level in the water well is measured. When the water level changes, the displacement sensor 9 can also measure the height of the water level according to the change of the water level.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a water level automatic monitoring device in foundation ditch water level observation well which characterized in that: comprises an observation well pipe (1) which is vertically arranged, a measuring seat (2) is arranged at the top of the observation well pipe (1), one side of the measuring seat (2) close to the observation well pipe (1) is provided with a containing groove (3), a horizontal rotating rod (4) is arranged in the accommodating groove (3), positioning holes (5) for accommodating two ends of the rotating rod (4) are formed in the measuring seat (2), the rotating rod (4) is rotatably connected in the positioning hole (5), a telescopic coil spring (6) is wound on the rotating rod (4), one end of the telescopic coil spring (6) is fixedly connected to the rotating rod (4), the other end is fixedly connected with a buoy (7), the buoy (7) is tied with a plumb bob (8) through a rope, the side wall of the accommodating groove (3) is connected with a displacement sensor (9), the displacement sensor (9) is electrically connected with a controller (10) positioned outside the measuring seat (2).

2. The automatic water level monitoring device in the foundation pit water level observation well according to claim 1, characterized in that: one side of the measuring seat (2) close to the observation well pipe (1) is provided with a circular inserting groove (11), and one end of the observation well pipe (1) on the ground is inserted in the inserting groove (11).

3. The automatic water level monitoring device in the foundation pit water level observation well according to claim 2, characterized in that: the inserting grooves (11) are coaxially provided with a plurality of inserting grooves, and the diameter of the inserting grooves (11) is gradually increased along the direction far away from the axis.

4. The automatic water level monitoring device in the foundation pit water level observation well according to claim 1, characterized in that: one end of the rotating rod (4) is fixedly connected with a rotating handle (12).

5. The automatic water level monitoring device in the foundation pit water level observation well according to claim 1, characterized in that: fixedly connected with fixed strip (13) on the lateral wall of measuring seat (2), open along its length direction the one end of fixed strip (13) has mounting hole (14), slide in mounting hole (14) and wear to be equipped with spacing inserted bar (15), conflict elasticity pressure spring (16) between the hole bottom of spacing inserted bar (15) and mounting hole (14), open one side of fixed strip (13) and have toggle groove (17), toggle groove (17) are on a parallel with mounting hole (14), toggle groove (17) communicate with each other with mounting hole (14), toggle groove (17) internal slip have with spacing inserted bar (15) fixed connection dial piece (18), it has confession spacing inserted bar (15) male spacing hole (19) to open on dwang (4).

6. The automatic water level monitoring device in the foundation pit water level observation well according to claim 5, characterized in that: the position of the poking groove (17) far away from the rotating rod (4) is provided with a limiting opening (20) used for limiting the poking block (18), and the limiting inserted rod (15) is rotatably connected with the mounting hole (14).

7. The automatic water level monitoring device in the foundation pit water level observation well according to claim 1, characterized in that: the shaft bodies of the rotating rods (4) on the two sides of the telescopic coil spring (6) are respectively fixedly sleeved with rotating bearings (21), and the rotating bearings (21) are in interference fit in the positioning holes (5).

8. The automatic water level monitoring device in the foundation pit water level observation well according to claim 7, characterized in that: the telescopic wind spring is characterized in that a limiting ring (22) is fixedly sleeved on the rod body of the rotating rod (4) between the telescopic wind spring (6) and the two rotating bearings (21), and the limiting ring (22) and the telescopic wind spring (6) are arranged in a clearance mode.