An anti-interference groundwater level measurement probe

Abstract

The present invention provides an anti-interference groundwater level measurement probe, which belongs to the technical field of hydrogeological equipment. The present invention sets a state sensing ball in the counterweight shell of the probe body, and uses the state sensing ball to sense whether the probe is dragged and tilted during the lowering process; the present invention uses a first float and a second float to sense the water level, and the first float and the second float are distributed on both sides of the counterweight shell and have different heights, which can effectively avoid false alarms due to a single side encountering a water curtain; the counterweight shell of the present invention can rotate around a nylon sleeve, which can avoid the load-bearing steel wire rope and the circuit cable from being entangled and knotted due to the rotation of the probe body itself during the lowering process, thereby reducing the probability of the probe being stuck.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogeological equipment, and in particular to an interference-proof groundwater level measuring probe. Background Art

[0002] In the hydrology, hydrogeology, agriculture and other industries, it is often necessary to obtain the accurate buried depth value of the groundwater level. The measured groundwater outcropping points are mostly machine wells, water wells, etc. When measuring the water level, the probe needs to touch the water surface. Because most water wells are in normal use, pipes, pump bodies, cables, etc. are all in the wellbore. During the lowering of the probe, it is necessary to overcome the interference of items in the wellbore such as cables, flanges, and wire ropes. There will often be a jam during the lifting and lowering process, or the probe will be held up in the middle and cannot be put down. Because it cannot be seen in the wellbore, it can only be felt by hand at this time, and the existence status of the probe cannot be accurately judged, resulting in the probe being stuck and unable to measure. In addition, the current probe rope is fixed together with the probe. When the rope is lowered, the probe has a large deadweight and a large swing amplitude. It is easy to be entangled with the cable or rope and cannot be lifted out, thus being damaged. Because the dynamic water level is often measured when measuring the water level, it is carried out in a well that is being pumped. At this time, the rapid flow of water on the well wall forms a water curtain, which produces a false water level position signal, affecting the accuracy of the measurement. In view of this, it is necessary to provide an anti-interference groundwater level measurement probe to solve the above technical problems. Summary of the invention

[0003] The technical problem solved by the present invention is to provide an anti-interference groundwater level measuring probe. The present invention can effectively solve the problem that the staff cannot accurately judge the state of the groundwater level measuring probe in the wellbore during the lowering process, and has the advantages of strong anti-interference ability, high detection accuracy, labor saving, compact structure and easy use.

[0004] In order to solve the above technical problems, the present invention adopts the following technical scheme: an anti-interference groundwater level measurement probe, including a probe body and an audible and visual alarm, the probe body and the audible and visual alarm are connected by a load-bearing steel wire rope and a circuit cable, characterized in that: the probe body includes a counterweight shell, the counterweight shell is a cylinder with a pointed bottom, a detection cavity is arranged in the counterweight shell, the bottom of the detection cavity is a concave semi-spherical shape, a state sensing ball is arranged in the concave semi-spherical bottom of the detection cavity, and a limit plate, a bottom conductive copper ring, an upper conductive copper ring, The load-bearing fixture has a first conductive contact piece opposite to the bottom conductive copper ring and a second conductive contact piece opposite to the upper conductive copper ring on the inner wall of the counterweight shell. The upper ends of the first conductive contact piece and the second conductive contact piece are hinged to the counterweight shell by means of a conductive pin shaft. Floating rod holes corresponding to the first conductive contact piece and the second conductive contact piece are respectively arranged on both sides of the counterweight shell wall. The floating rod holes are high inside and low outside and tilted downward. A first buoyancy rod connected to the first conductive contact piece and a second buoyancy rod connected to the second conductive contact piece are respectively arranged in the floating rod holes. A first buoyancy body is arranged on the outside of the first buoyancy rod, and a second buoyancy body is arranged on the outside of the second buoyancy rod. The center of the upper end of the counterweight shell is provided with a A threading hole is provided, and the load-bearing steel wire rope and circuit cable are inserted into the detection cavity through the threading hole; the circuit cable includes a first circuit, a second circuit and a third circuit, and a third conductive contact piece is provided at the bottom end of the third circuit, and the third conductive contact piece passes downward through the center of the limit plate, the first circuit is connected to the bottom conductive copper ring, and the second circuit is connected to the upper conductive copper ring; the third conductive contact piece can be connected to the state sensing ball when the state sensing ball is at the lowest point of the concave semi-spherical bottom of the detection cavity, the state sensing ball is a conductive metal material, and the limit plate is an insulating plate; the first circuit, the second circuit and the third circuit are all independent external A cable with an insulating layer, the sound and light warning device includes a control circuit board, a first warning light, a second warning light, a third warning light, a warning sound and a power supply module, the first circuit is connected to the positive circuit of the first warning light, the second circuit is connected to the positive circuit of the second warning light, the third circuit is connected to the positive circuit of the third warning light, the bottom end of the load-bearing steel wire rope is fixedly connected to the load-bearing clamp, the load-bearing clamp and the counterweight shell are both made of conductive metal materials, the load-bearing clamp and the counterweight shell are connected by a fourth conductive contact piece, and the load-bearing steel wire rope is connected to the negative circuit of the sound and light warning device as a conductive circuit while bearing the weight of the probe body.

[0005] Furthermore, a nylon sleeve is provided in the threading hole, and the load-bearing steel wire rope and circuit cable are passed through the center of the nylon sleeve. The bottom end of the nylon sleeve is connected to the load-bearing clamp, and the upper end of the nylon sleeve is provided with an upper cover ring for limiting the counterweight shell. The counterweight shell can rotate around the nylon sleeve, and the load-bearing steel wire rope and circuit cable are passed through the center of the nylon sleeve and the upper cover ring. An upper cover sealing gasket is provided on the upper part of the upper cover ring.

[0006] Furthermore, the counterweight shell is composed of an upper and lower shell body, which are connected by internal and external threaded buckles. The counterweight shell is made of a solid metal cylindrical material with a density greater than or equal to that of iron, and the detection cavity and the bottom tip of the counterweight shell are processed by milling.

[0007] Furthermore, the float rod hole is in a stepped shape with a small inner diameter and a large outer diameter; the first float and the second float are both located in the larger diameter section outside the float rod hole, and the first float and the second float are both provided with a return spring inside, the inner side of the return spring is stuck in the step of the float rod hole, and a float rod hole sealing gasket is provided at the contact part between the first buoyancy rod and the second buoyancy rod and the smaller diameter section of the float rod hole.

[0008] Furthermore, the first floating body is lower than the second floating body.

[0009] Furthermore, the third conductive contact sheet is an elastic metal conductive sheet.

[0010] Furthermore, the load-bearing clamp is provided with a plurality of clamping rings, and the clamping rings are used to clamp the load-bearing steel wire ropes. By adjusting the number of clamping rings clamping the load-bearing steel wire ropes, the load-bearing capacity of the load-bearing clamp can be adjusted.

[0011] Furthermore, the bottom conductive copper ring, the upper conductive copper ring and the supporting fixture are insulated from each other and are not connected.

[0012] The present invention arranges a status sensing ball in the counterweight shell of the probe body, and the status sensing ball can be used to sense whether the probe is dragged and tilted during the lowering process; the present invention uses a first float and a second float to sense the water level, and the first float and the second float are distributed on both sides of the counterweight shell and have different heights, which can effectively avoid false alarms caused by a water curtain encountered on one side; the counterweight shell of the present invention can rotate around the nylon sleeve, which can avoid the load-bearing steel wire rope and the circuit cable from being entangled and knotted due to the rotation of the probe body itself during the lowering process, thereby reducing the probability of the probe being stuck; the load-bearing clamp of the present invention is provided with multiple clamping rings, and the number of clamping rings that clamp the load-bearing steel wire rope can be adjusted according to the weight of the probe body and the detection depth. In the event of an emergency situation where the probe is stuck, the load-bearing steel wire rope can be detached from the load-bearing clamp and the probe can be abandoned in the well, thereby avoiding excessive load-bearing steel wire ropes and circuit cables being left in the well, affecting the next re-detection, and reducing the detection cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 for Figure 1 Enlarged view of part A.

[0015] Figure 3 It is a circuit connection principle block diagram of the present invention.

[0016] The corresponding parts names in the figure are: 1 load-bearing steel wire rope; 2 counterweight shell; 3 status sensing ball; 4 limit plate; 5 bottom conductive copper ring; 6 upper conductive copper ring; 7 load-bearing clamp; 8 first conductive contact; 9 second conductive contact; 10 float rod hole; 11 first buoyancy rod; 12 second buoyancy rod; 13 first floating body; 14 second floating body; 15 first circuit; 16 second circuit; 17 third circuit; 18 third conductive contact; 19 control circuit board; 20 first warning light; 21 second warning light; 22 third warning light; 23 warning sound; 24 power supply module; 25 nylon sleeve; 26 fixed upper cover; 27 upper cover sealing gasket; 28 threaded buckle; 29 fourth conductive contact; 30 reset spring; 31 float rod hole sealing gasket; 32 clamping ring. DETAILED DESCRIPTION

[0017] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods, structures and features of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments. However, the accompanying drawings are only provided for reference and explanation, and are not intended to limit the present invention.

[0018] See also Figure 1-Figure 3As shown, the present invention provides an anti-interference groundwater level measurement probe, including a probe body and an audible and visual alarm, the probe body and the audible and visual alarm are connected by a load-bearing steel wire rope 1 and a circuit cable, the probe body includes a counterweight shell 2, the counterweight shell is a cylindrical shape with a pointed bottom, a detection cavity is arranged in the counterweight shell, the bottom of the detection cavity is a concave semi-spherical shape, a state sensing ball 3 is arranged in the concave semi-spherical bottom of the detection cavity, a limit plate 4, a bottom conductive copper ring 5, an upper conductive copper ring 6, and a bearing fixture 7 are arranged in the detection cavity above the state sensing ball from bottom to top, and a first conductive contact piece 8 opposite to the bottom conductive copper ring 5 and a first conductive contact piece 8 opposite to the upper conductive copper ring 5 are arranged on the inner wall of the counterweight shell. A second conductive contact piece 9 is opposite to the ring 6, and the upper ends of the first conductive contact piece 8 and the second conductive contact piece 9 are hinged to the counterweight shell 2 by means of a conductive pin shaft. Floating rod holes 10 corresponding to the first conductive contact piece 8 and the second conductive contact piece 9 are respectively arranged on both sides of the counterweight shell wall. The floating rod hole is high inside and low outside and tilted downward. A first buoyancy rod 11 connected to the first conductive contact piece 8 and a second buoyancy rod 12 connected to the second conductive contact piece 9 are respectively arranged in the floating rod hole. A first buoyancy body 13 is arranged on the outside of the first buoyancy rod 11, and a second buoyancy body 14 is arranged on the outside of the second buoyancy rod 12; a threading hole is arranged at the center of the upper end of the counterweight shell, and the load-bearing steel wire rope and the circuit cable are inserted into the detection cavity through the threading hole; the circuit cable package The first circuit 15, the second circuit 16 and the third circuit 17 are provided with a third conductive contact 18 at the bottom of the third circuit, and the third conductive contact 18 passes downward through the center of the limit plate 4. The first circuit 15 is connected to the bottom conductive copper ring 5, and the second circuit 16 is connected to the upper conductive copper ring 6; the third conductive contact 18 can be connected to the state sensing ball 3 when the state sensing ball 3 is at the lowest point of the concave semi-spherical bottom of the detection cavity. The state sensing ball 3 is a conductive metal material, and the limit plate 4 is an insulating plate; the first circuit 15, the second circuit 16 and the third circuit 17 are all independent cables with an insulating layer, and the sound and light alarm includes a control circuit board 19, a first warning light 20, a second warning light 21, and a second warning light 22. The first circuit 15 is connected to the positive circuit of the first warning light 20, the second circuit 16 is connected to the positive circuit of the second warning light 21, and the third circuit 17 is connected to the positive circuit of the third warning light 22. The bottom end of the load-bearing steel wire rope 1 is fixedly connected to the load-bearing clamp 7. The load-bearing clamp 7 and the counterweight shell are both made of conductive metal materials. The load-bearing clamp 7 and the counterweight shell 2 are connected by a fourth conductive contact piece 29. The load-bearing steel wire rope is connected to the negative circuit of the sound and light warning device as a conductive circuit while bearing the weight of the probe body; the bottom conductive copper ring 5, the upper conductive copper ring 6, and the load-bearing clamp 7 are insulated from each other.When the present invention is in operation, the probe body is lowered into the well for detection, and a status sensing ball is arranged in the counterweight shell. If the probe body is blocked during the lowering process, the counterweight shell will tilt because the bottom of the counterweight shell of the probe body is pointed, and the status sensing ball will roll to a position deviating from the center, and the third conductive contact piece 18 will lose contact with the status sensing ball, and the third warning light 22 will be turned off. The ground staff can judge whether the probe body is dragged and tilted during the lowering process by the status of the third warning light 22. If it is found that the probe body is dragged and tilted, it can be lifted and put again. The present invention utilizes a first float and a second float to sense the water level. The first float and the second float are distributed on both sides of the counterweight shell and have different heights. The first float drives the first conductive contact piece 8 to connect with the bottom conductive copper ring 5 through the first buoyancy rod 11. The bottom conductive copper ring 5 is connected to the first warning light 20 through the first circuit 15. The first conductive contact piece 8 itself is connected to the counterweight shell 2, the fourth conductive contact piece 29, the bearing clamp 7, the load-bearing steel wire rope 1 in sequence through the conductive pin shaft, and finally connected to the negative circuit of the sound and light alarm. When the first float touches the first conductive contact piece 8, the first warning light 20 can be lit through the control circuit board 19, and the warning sound 23 can further emit a warning sound. The second float drives the second conductive contact piece 9 to connect with the upper conductive copper ring 6 through the second buoyancy rod 12. The upper conductive copper ring 6 is connected to the second warning light 20 through the second line 16. The second conductive contact piece 9 is also connected to the negative line of the sound and light alarm. When the second float touches the second conductive contact piece 9, the second warning light 21 can be lit through the control circuit board 19. When a water curtain appears in the well pipe, the line on one side can be connected to light up one of the first warning light 20 and the second warning light 21. Only when the probe body enters the water and the first float and the second float float up at the same time to connect the lines on both sides, can the first warning light 20 and the second warning light 21 be lit at the same time, which can effectively avoid false alarms caused by a water curtain on one side. The first float of the present invention is lower than the second float, which further improves the anti-water curtain interference ability of the present invention.

[0019] A nylon sleeve 25 is provided in the threading hole, and the center of the nylon sleeve 25 passes through the load-bearing steel wire rope 1 and the circuit cable. The bottom end of the nylon sleeve is connected to the bearing fixture, and the upper end of the nylon sleeve is provided with a fixed upper cover 26 for limiting the counterweight shell. The counterweight shell can rotate around the nylon sleeve, and the load-bearing steel wire rope and the circuit cable pass through the center of the nylon sleeve and the upper cover ring. The upper part of the upper cover ring is provided with an upper cover sealing pad 27. During the lowering process, the probe body will rotate continuously due to its own weight and the upper load-bearing steel wire rope. The longer the load-bearing steel wire rope is, the greater the rotation amplitude is. The present invention sets the counterweight shell of the probe body to be rotatable, and the counterweight shell may not rotate synchronously with the load-bearing steel wire rope and the circuit cable, which can avoid the probe body rotating too much and causing the load-bearing steel wire rope and the circuit cable to be entangled and knotted, thereby reducing the probability of the probe being stuck.

[0020] The counterweight shell is composed of an upper and lower shell, which are connected by a threaded buckle 28. The counterweight shell 2 is made of a solid metal cylindrical material with a density greater than or equal to that of iron. The detection cavity and the bottom tip of the counterweight shell are processed by milling. The float rod hole is a stepped shape with a small inner diameter and a large outer diameter; the first float and the second float are both located in the larger diameter section outside the float rod hole 10, and the first float and the second float are both provided with a reset spring 30 inside. The reset spring is stuck in the step of the float rod hole. The first buoyancy rod and the second buoyancy rod are provided with a float rod hole sealing gasket 31 at the contact part of the smaller diameter section of the float rod hole. The third conductive contact 18 is an elastic metal conductive sheet to adapt to the rolling instability of the state sensing ball 3.

[0021] The bearing fixture 7 is provided with a plurality of clamping rings, and the clamping ring 32 is used to clamp the load-bearing steel wire rope 1. By adjusting the number of clamping rings that clamp the load-bearing steel wire rope, the bearing capacity of the bearing fixture can be adjusted. The number of clamping rings that clamp the load-bearing steel wire rope is adjusted according to the weight of the probe body and the detection depth. In the event of an emergency where the probe is stuck, the load-bearing steel wire rope can be detached from the bearing fixture and the probe body can be abandoned in the well, so as to avoid too many load-bearing steel wire ropes and circuit cables being left in the well, affecting the next re-detection and reducing the detection cost.

[0022] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-interference groundwater level measurement probe, comprising a probe body and an audible and visual alarm, wherein the probe body and the audible and visual alarm are connected by a load-bearing steel wire rope and a circuit cable, and characterized in that: The probe body comprises a counterweight shell, which is a cylindrical shape with a pointed bottom, a detection cavity is arranged in the counterweight shell, the bottom of the detection cavity is a concave semi-spherical shape, a state sensing ball is arranged in the concave semi-spherical bottom of the detection cavity, a limit plate, a bottom conductive copper ring, an upper conductive copper ring, and a bearing fixture are arranged in the detection cavity above the state sensing ball from bottom to top, a first conductive contact sheet opposite to the bottom conductive copper ring and a second conductive contact sheet opposite to the upper conductive copper ring are arranged on the inner wall of the counterweight shell, and the upper ends of the first conductive contact sheet and the second conductive contact sheet are The counterweight shell is hinged with a conductive pin shaft, and floating rod holes corresponding to the first conductive contact piece and the second conductive contact piece are provided on both sides of the counterweight shell wall. The floating rod hole is high inside and low outside and tilted downward. A first buoyancy rod connected to the first conductive contact piece and a second buoyancy rod connected to the second conductive contact piece are provided in the floating rod hole, a first buoyancy body is provided on the outside of the first buoyancy rod, and a second buoyancy body is provided on the outside of the second buoyancy rod; a threading hole is provided at the center of the upper end of the counterweight shell, and the load-bearing steel wire rope and the circuit cable are inserted into the detection cavity through the threading hole; the circuit cable includes a first The first circuit, the second circuit and the third circuit are provided with a third conductive contact piece at the bottom of the third circuit, and the third conductive contact piece passes downward through the center of the limit plate. The first circuit is connected to the bottom conductive copper ring, and the second circuit is connected to the upper conductive copper ring; the third conductive contact piece can be connected to the state sensing ball when the state sensing ball is at the lowest point of the concave semi-spherical bottom of the detection cavity, and the state sensing ball is a conductive metal material, and the limit plate is an insulating plate; the first circuit, the second circuit and the third circuit are all independent cables with an insulating layer, and the sound and light alarm device includes a control circuit board, a first warning light, a second warning light, a third warning light, a warning sound and a power supply module. The first circuit is connected to the positive circuit of the first warning light, the second circuit is connected to the positive circuit of the second warning light, and the third circuit is connected to the positive circuit of the third warning light. The bottom end of the load-bearing steel wire rope is fixedly connected to the load-bearing fixture, and the load-bearing fixture and the counterweight shell are both conductive metal materials. The fourth conductive contact piece is used to connect the load-bearing fixture and the counterweight shell. The load-bearing steel wire rope is connected to the negative circuit of the sound and light alarm device as a conductive circuit while bearing the weight of the probe body.

2. The anti-interference groundwater level measuring probe according to claim 1, characterized in that: A nylon sleeve is provided in the threading hole, the bottom end of the nylon sleeve is connected to the load-bearing clamp, the upper end of the nylon sleeve is provided with an upper cover ring for limiting the counterweight shell, the counterweight shell can rotate around the nylon sleeve, the load-bearing steel wire rope and the circuit cable pass through the center of the nylon sleeve and the upper cover ring, and an upper cover sealing gasket is provided on the upper part of the upper cover ring.

3. The anti-interference groundwater level measuring probe according to claim 1, characterized in that: The counterweight shell is composed of an upper and lower shell body, which are butt-jointed by internal and external threaded buckles. The counterweight shell is made of a solid metal cylindrical material with a density greater than or equal to that of iron. The detection cavity and the bottom tip of the counterweight shell are processed by milling.

4. The anti-interference groundwater level measuring probe according to claim 1, characterized in that: The float rod hole is in a stepped shape with a small inner diameter and a large outer diameter; the first float and the second float are both located in the larger diameter section outside the float rod hole, and the first float and the second float are both provided with a return spring inside, and the inner side of the return spring is stuck in the step of the float rod hole, and a float rod hole sealing gasket is provided at the contact position between the first buoyancy rod and the second buoyancy rod and the smaller diameter section of the float rod hole.

5. The anti-interference groundwater level measuring probe according to claim 1, characterized in that: The first floating body is lower than the second floating body.

6. The anti-interference groundwater level measuring probe according to claim 1, characterized in that: The third conductive contact piece is an elastic metal conductive piece.

7. The anti-interference groundwater level measuring probe according to claim 1, characterized in that: The load-bearing clamp is provided with a plurality of clamping rings, and the clamping rings are used to clamp the load-bearing steel wire ropes. By adjusting the number of clamping rings clamping the load-bearing steel wire ropes, the load-bearing capacity of the load-bearing clamp can be adjusted.

8. The anti-interference groundwater level measurement probe according to claim 1, characterized in that: The bottom conductive copper ring, the upper conductive copper ring and the supporting fixture are insulated from each other.

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