Water level monitoring equipment for water conservancy foundation pit

Abstract

The present invention belongs to the technical field of water level monitoring, and specifically is a water level monitoring device for a water conservancy foundation pit, comprising a first vertical pipe, and the first vertical pipe is buried in the foundation pit; a uniformly arranged first vertical groove is opened in the inner wall of the first vertical pipe; a second vertical pipe is arranged in the first vertical pipe; a sliding sleeve is fixedly connected to the outer surface of the second vertical pipe at the top position of the second vertical pipe, and the sliding sleeve is in contact with the inner circle surface of the first vertical pipe; the second vertical pipe partially extends out of the first vertical pipe; a uniformly arranged second vertical groove is opened in the inner wall of the second vertical pipe at the bottom position of the second vertical pipe; a uniformly arranged sliding groove is opened on the inner circle surface of the first vertical pipe; the present invention is mainly used to solve the problem that water in the foundation pit will become muddy water after mixing with soil. When the monitoring probe is in muddy water for a long time, a mud layer will quickly adhere to the monitoring probe. At the same time, when it rains, the water in the foundation pit will fluctuate, which will drive the monitoring probe to shake, thereby affecting the monitoring accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of water level monitoring, in particular to water level monitoring equipment for a water conservancy foundation pit. Background Art

[0002] With the continuous acceleration of urban construction, many high-rise buildings and underground projects are under construction, and the excavation depth of building foundation pits is getting deeper and deeper. When the groundwater level is higher than the bottom of the foundation pit, groundwater will continue to seep into the pit. In order to ensure construction safety and avoid slope instability and reduced foundation bearing capacity, a variety of drainage measures must be taken to lower the groundwater level around the foundation pit.

[0003] When monitoring the water level of foundation pits, the instrument commonly used is the immersion liquid level monitor. The immersion liquid level monitor is designed to solve the problems of low efficiency and poor supervision of manual statistical management of the liquid level of fire wells, municipal wells, coal mine wells, foundation pits, industrial tanks, and agricultural irrigation canals. Combining the years of experience of professionals, a pressure-type liquid level data acquisition and transmission device has been developed and designed;

[0004] However, when using a immersion liquid level monitor to monitor the foundation pit water level, the water in the foundation pit will become muddy water after mixing with the soil. When the monitoring probe is in muddy water for a long time, a mud layer will quickly adhere to the monitoring probe. At the same time, when it rains, the water in the foundation pit will fluctuate, which will cause the monitoring probe to shake, thus affecting the monitoring accuracy.

[0005] In view of this, the present invention solves the above technical problems by proposing a water level monitoring device for a water conservancy foundation pit. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a water level monitoring device for a water conservancy foundation pit.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the water level monitoring equipment for a water conservancy foundation pit of the present invention comprises a first vertical pipe, and the first vertical pipe is buried in the foundation pit;

[0008] The inner wall of the first vertical pipe is provided with uniformly arranged first vertical grooves, and the first vertical grooves are used for water intake;

[0009] A second vertical tube is arranged inside the first vertical tube; a sliding sleeve is fixedly connected to the top of the second vertical tube and located on the outer surface of the second vertical tube, and the sliding sleeve is in contact with the inner surface of the first vertical tube; the second vertical tube partially extends out of the first vertical tube;

[0010] At the bottom of the second vertical pipe, evenly arranged second vertical grooves are opened in the inner wall of the second vertical pipe, and the second vertical grooves are used for water intake;

[0011] The inner ring surface of the first vertical pipe is provided with evenly arranged sliding grooves, and the number of the sliding grooves is four; a first mounting plate is provided at the bottom of the sliding groove; the outer ring surface of the first mounting plate is fixedly connected with two first sliding blocks, and the first sliding blocks are placed in two of the sliding grooves;

[0012] A first magnetic block is fixedly connected to the inner walls of the two first sliders; a second magnetic block is fixedly connected to the inner walls of the slide slots corresponding to the two first sliders; the first magnetic block and the second magnetic block attract each other;

[0013] A monitoring probe is installed at the center point of the first installation plate;

[0014] A second mounting plate is provided above the second vertical slot and on the inner surface of the second vertical tube; two second sliders are fixedly connected to the outer surface of the second mounting plate, and the second sliders are placed in two of the sliding slots; a third magnetic block is fixedly connected to the inner walls of the two second sliders; a fourth magnetic block is fixedly connected to the inner walls of the sliding slots corresponding to the two second sliders, and the fourth magnetic block and the third magnetic block attract each other; the second mounting plate is limited in the second vertical tube by the mutual attraction between the third magnetic block and the fourth magnetic block;

[0015] The cable on the monitoring probe passes through the center point of the second mounting plate and is fixed on the second mounting plate;

[0016] A mounting block is slidably disposed in the second vertical pipe above the second mounting plate; a monitoring host is mounted on the upper surface of the mounting block, and a cable passing through the second mounting plate on the monitoring probe is connected to the monitoring host; a protective shell is mounted on the outside of the monitoring host;

[0017] The mounting block is a floating block and slides in the second vertical pipe;

[0018] The outer ring surface of the mounting block is rotatably connected with evenly arranged balls;

[0019] The upper surface of the second mounting plate is fixedly connected with three storage compartments; the cable extending to the top of the second mounting plate is partially wound in the middle storage compartment and then connected to the monitoring host;

[0020] The height of the second vertical pipe is higher than the depth of the foundation pit;

[0021] A filter screen is installed in the first vertical slot;

[0022] A filter cloth is installed in the second vertical pipe.

[0023] Preferably, the first mounting plate and the second mounting plate are connected via a support rod;

[0024] Two pull ropes are fixedly connected to the upper surface of the second mounting plate, and the pull rope parts are wound in two storage compartments; the other ends of the two pull ropes are fixed to the lower surface of the mounting block, and the length of the pull ropes is slightly shorter than the length of the cables on the second mounting plate.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The water level monitoring device for a water conservancy foundation pit described in the present invention has a filter screen installed in the first vertical groove, and the filter cloth can block some garbage or impurities larger than the mesh size of the filter screen from entering the first vertical pipe. The water entering the first vertical pipe will enter the second vertical pipe through the second vertical groove. Since the filter cloth is installed in the second vertical pipe, when the water in the first vertical pipe passes through the filter cloth and enters the second vertical pipe, the filter cloth can filter part of the sediment in the water due to the presence of the filter cloth, thereby reducing the content of sediment entering the second vertical pipe, thereby preventing water containing more sediment from contacting the monitoring probe for a long time, thereby accelerating the speed of sediment adhering to the monitoring probe.

[0027] 2. The water level monitoring device for the hydraulic foundation pit described in the present invention, when the water in the foundation pit fluctuates, the fluctuating water will first act on the first vertical pipe, and then enter the first vertical pipe through the first vertical groove; at the same time, since the first vertical pipe is provided with a second vertical pipe, the water entering the second vertical pipe will act on the second vertical pipe, and then enter the second vertical pipe through the second vertical groove; the existence of the first vertical pipe and the second vertical pipe can reduce the amplitude of water fluctuations; at the same time, since the monitoring probe is installed on the first mounting plate, the monitoring probe can be prevented from shaking, which affects the monitoring accuracy of the monitoring probe.

[0028] 3. The water level monitoring equipment for the water conservancy foundation pit described in the present invention can install the monitoring host on a floating block, and the floating block can adjust its own position according to the actual liquid level, so that the monitoring host can always be above the liquid level, thereby preventing the monitoring host from being fixed and submerging the monitoring host when the liquid level rises, thereby affecting the monitoring host. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 is a stereogram of the present invention;

[0031] Figure 2 is a perspective view of the present invention without the first vertical pipe;

[0032] Figure 3 The present invention Figure 2 Top view;

[0033] Figure 4 The present invention Figure 3 Sectional view at AA;

[0034] Figure 5 The present invention Figure 4 A partial enlarged view of point B in the middle;

[0035] Figure 6 The present invention Figure 4 A partial enlarged view of point C in the middle;

[0036] Figure 7 The present invention Figure 4 A partial enlarged view of point D in the middle.

[0037] In the figure:

[0038] 1. First vertical pipe; 11. First vertical slot; 12. Filter; 2. Second vertical pipe; 21. Sleeve; 22. Second vertical slot; 23. Filter cloth; 24. Slide; 3. First mounting plate; 31. First slider; 32. First magnetic block; 33. Second magnetic block; 34. Monitoring probe; 4. Second mounting plate; 41. Second slider; 42. Third magnetic block; 43. Fourth magnetic block; 44. Cable; 45. Storage compartment; 46. Support rod; 47. Pull rope; 5. Mounting block; 51. Monitoring host; 52. Protective shell. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] like Figures 1 to 7 As shown, the water level monitoring equipment for water conservancy foundation pit of the present invention; Example

[0041] It includes a first vertical pipe 1, and the first vertical pipe 1 is buried in the foundation pit;

[0042] The inner wall of the first vertical pipe 1 is provided with uniformly arranged first vertical grooves 11, and the first vertical grooves 11 are used for water intake;

[0043] A second vertical tube 2 is disposed inside the first vertical tube 1; a sliding sleeve 21 is fixedly connected to the top of the second vertical tube 2 and located on the outer surface of the second vertical tube 2, and the sliding sleeve 21 is in contact with the inner surface of the first vertical tube 1; the second vertical tube 2 partially extends out of the first vertical tube 1;

[0044] At the bottom of the second vertical pipe 2, evenly arranged second vertical grooves 22 are opened in the inner wall of the second vertical pipe 2, and the second vertical grooves 22 are used for water intake;

[0045] The inner surface of the first vertical pipe 1 is provided with evenly arranged slide grooves 24, and the number of the slide grooves 24 is four; the bottom of the slide groove 24 is provided with a first mounting plate 3; the outer surface of the first mounting plate 3 is fixedly connected with two first sliders 31, and the first sliders 31 are placed in two of the slide grooves 24;

[0046] The first magnetic blocks 32 are fixedly connected to the inner walls of the two first sliders 31; the second magnetic blocks 33 are fixedly connected to the inner walls of the slide slots 24 corresponding to the two first sliders 31; the first magnetic blocks 32 and the second magnetic blocks 33 attract each other;

[0047] A monitoring probe 34 is installed at the center point of the first installation plate 3;

[0048] A second mounting plate 4 is provided on the inner surface of the second vertical tube 2 above the second vertical groove 22; two second sliders 41 are fixedly connected to the outer surface of the second mounting plate 4, and the second sliders 41 are placed in two of the slide grooves 24; a third magnetic block 42 is fixedly connected to the inner walls of the two second sliders 41; a fourth magnetic block 43 is fixedly connected to the inner walls of the slide grooves 24 corresponding to the two second sliders 41, and the fourth magnetic block 43 and the third magnetic block 42 attract each other; the second mounting plate 4 is limited in the second vertical tube 2 by the mutual attraction between the third magnetic block 42 and the fourth magnetic block 43;

[0049] The cable 44 on the monitoring probe 34 passes through the center point of the second mounting plate 4 and is fixed on the second mounting plate 4;

[0050] A mounting block 5 is slidably disposed in the second vertical pipe 2 above the second mounting plate 4; a monitoring host 51 is mounted on the upper surface of the mounting block 5, and a cable 44 on the monitoring probe 34 passing through the second mounting plate 4 is connected to the monitoring host 51; a protective shell 52 is mounted on the outside of the monitoring host 51;

[0051] The mounting block 5 is a floating block and slides in the second vertical pipe 2;

[0052] The outer ring surface of the mounting block 5 is rotatably connected with evenly arranged balls;

[0053] The upper surface of the second mounting plate 4 is fixedly connected with three storage compartments 45; the cable 44 extending to the upper part of the second mounting plate 4 is partially wound in the middle storage compartment 45 and then connected to the monitoring host 51;

[0054] The height of the second vertical pipe 2 is higher than the depth of the foundation pit;

[0055] A filter screen 12 is installed in the first vertical slot 11;

[0056] A filter cloth 23 is installed in the second vertical pipe 2 .

[0057] When installing the water level monitoring device, the staff first installs the water level monitoring device in the foundation pit. When the water in the foundation pit gradually increases, the water in the foundation pit will enter the first vertical pipe 1 through the first vertical groove 11. Since the filter screen 12 is installed in the first vertical groove 11, the filter cloth 23 can prevent some garbage or impurities larger than the mesh of the filter screen 12 from entering the first vertical pipe 1. The water entering the first vertical pipe 1 will enter the second vertical pipe 2 through the second vertical groove 22. Since the filter cloth 23 is installed in the second vertical pipe 2, when the water in the first vertical pipe 1 passes through the filter cloth 23 and enters the second vertical pipe 2, due to the presence of the filter cloth 23, the filter cloth 23 can filter part of the sediment in the water for filtration, thereby reducing the content of sediment entering the second vertical pipe 2, thereby preventing water containing more sediment from contacting the monitoring probe 34 for a long time, thereby accelerating the speed of sediment adhering to the monitoring probe 34;

[0058] Since the monitoring probe 34 is arranged on the first mounting plate 3 in the second vertical pipe 2, when the water in the foundation pit fluctuates, the fluctuating water will first act on the first vertical pipe 1, and then enter the first vertical pipe 1 through the first vertical groove 11. At the same time, since the second vertical pipe 2 is arranged in the first vertical pipe 1, the water entering the second vertical pipe 2 will act on the second vertical pipe 2, and then enter the second vertical pipe 2 through the second vertical groove 22. The existence of the first vertical pipe 1 and the second vertical pipe 2 can reduce the amplitude of water fluctuation. At the same time, since the monitoring probe 34 is installed on the first mounting plate 3, it can prevent the monitoring probe 34 from shaking, thereby affecting the monitoring accuracy of the monitoring probe 34.

[0059] Since the two first sliders 31 installed on the first mounting plate 3 are placed in two of the four slide grooves 24, and since the two second sliders 41 installed on the second mounting plate 4 are placed in two of the four slide grooves 24, when the water entering the second vertical pipe 2 from the second vertical groove 22 can flow upward through the other two slide grooves 24 without the first sliders 31 and the second sliders 41, the water level in the second vertical pipe 2 can be made to be at the same height as the water level in the foundation pit. Since the mounting block 5 is a floating block, when the water level in the second vertical pipe 2 is higher than the second mounting plate 4, the floating block will rise with the rise of the water level. In the process of the floating block rising In the process, the monitoring host 51 will be driven to move upward, so that the monitoring host 51 is always located above the liquid surface. When the floating block drives the monitoring host 51 to move upward, the monitoring host 51 will pull out part of the cable 44 wound in the storage bin 45 upward, thereby preventing the monitoring host 51 from being unable to move upward due to insufficient length of the cable 44. By installing the monitoring host 51 on the floating block, the floating block can adjust its position according to the actual liquid level, so that the monitoring host 51 is always located above the liquid surface, thereby preventing the monitoring host 51 from being fixed and submerging the monitoring host 51 when the liquid level rises, thereby affecting the monitoring host 51.

[0060] Since the height of the second vertical pipe 2 is higher than the depth of the foundation pit, when the liquid level in the foundation pit is flush with the ground, the water in the foundation pit will flow toward the ground, and the mounting block 5 will not float out of the second vertical pipe 2.

[0061] Since the outer ring surface of the mounting block 5 is rotatably connected with evenly arranged balls, the friction between the mounting block 5 and the inner ring surface of the second vertical pipe 2 can be reduced during the movement of the mounting block 5. Example

[0062] The first mounting plate 3 and the second mounting plate 4 are connected via a support rod 46;

[0063] Two pull ropes 47 are fixedly connected to the upper surface of the second mounting plate 4, and parts of the pull ropes 47 are wound in two storage compartments 45; the other ends of the two pull ropes 47 are fixed to the lower surface of the mounting block 5, and the length of the pull ropes 47 is slightly shorter than the length of the cable 44 on the second mounting plate 4.

[0064] Since the pull rope 47 fixedly connected to the upper surface of the second mounting plate 4 is wound in the storage compartment 45, and the other end is fixedly connected to the lower surface of the mounting block 5, when the mounting block 5 moves upward, part of the pull rope 47 will be pulled out of the storage compartment 45, thereby preventing the pull rope 47 from being insufficiently long and affecting the upward movement of the mounting block 5;

[0065] When installing the water level monitoring device, the staff first buries the first vertical pipe 1 in the foundation pit, and then inserts the second vertical pipe 2 into the first vertical pipe 1. Since the outer surface of the second vertical pipe 2 is fixedly connected with the sliding sleeve 21, when the second vertical pipe 2 is inserted into the first vertical pipe 1, the sliding sleeve 21 will fit with the inner circle surface of the first vertical pipe 1, so that a certain gap can be formed between the first vertical pipe 1 and the second vertical pipe 2. Then the staff installs the support rod 46 between the first mounting plate 3 and the second mounting plate 4, and then puts the first mounting plate 3 into the second vertical pipe 2, and at the same time puts the two first sliding blocks 31 fixedly connected to the first mounting plate 3 into the sliding block. The staff then holds the support rod 46 and pushes the first mounting plate 3 downward. When the first mounting plate 3 slides over the fourth magnetic block 43, the first mounting plate 3 slides downward under its own gravity until it slides to the bottom of the slide groove 24. When the first mounting plate 3 slides to the bottom of the slide groove 24, the first magnetic block 32 and the second magnetic block 33 attract each other. At the same time, the third magnetic block 42 and the fourth magnetic block 43 on the second mounting plate 4 attract each other. Then the staff puts the mounting block 5 into the second vertical pipe 2. Then the mounting block 5 moves downward under its own gravity until it falls on the upper surface of the storage bin 45.

[0066] At the same time, during installation, the staff can fasten a rope on the upper surface of the mounting block 5 and tie the rope to the outer ring of the second vertical pipe 2, and the length of the rope is greater than the length from the upper surface of the second mounting plate 4 to the top of the second vertical pipe 2;

[0067] When it is necessary to remove the water level detection mechanism, the staff will untie the rope tied to the second vertical pipe 2 and then pull it upward, so that the mounting block 5 can be pulled upward. When the mounting block 5 is pulled upward, the pull rope 47 wound in the storage bin 45 will be gradually lengthened. Since the length of the pull rope 47 is slightly shorter than the length of the cable 44 on the second mounting plate 4, when the pull rope 47 is straightened, the cable 44 on the second mounting plate 4 is still not in a straightened state. When the mounting block 5 continues to be pulled upward, the second mounting plate 4 can be pulled upward by the action of the pull rope 47. At the same time, the first mounting plate 3 is also pulled upward under the action of the support rod 46. When the first mounting plate 3 and the second mounting plate 4 are pulled, the first magnetic block 32 and the second magnetic block 33 are separated from each other, and the third magnetic block 42 and the fourth magnetic block 43 are separated from each other. Then the second mounting plate 4 and the first mounting plate 3 are pulled out of the second vertical pipe 2, and then the second vertical pipe 2 is pulled out of the first vertical pipe 1, and then the first vertical pipe 1 is removed.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Water level monitoring equipment for water conservancy foundation pit, characterized in that: It comprises a first vertical pipe (1), and the first vertical pipe (1) is buried in a foundation pit; The inner wall of the first vertical pipe (1) is provided with uniformly arranged first vertical grooves (11), and the first vertical grooves (11) are used for water intake; A second vertical tube (2) is arranged inside the first vertical tube (1); a sliding sleeve (21) is fixedly connected to the outer surface of the second vertical tube (2) at the top of the second vertical tube (2), and the sliding sleeve (21) is in contact with the inner surface of the first vertical tube (1); the second vertical tube (2) partially extends out of the first vertical tube (1); At the bottom of the second vertical pipe (2), evenly arranged second vertical grooves (22) are opened in the inner wall of the second vertical pipe (2), and the second vertical grooves (22) are used for water intake; The inner surface of the first vertical pipe (1) is provided with evenly arranged sliding grooves (24), and the number of the sliding grooves (24) is four; a first mounting plate (3) is provided at the bottom of the sliding groove (24); the outer surface of the first mounting plate (3) is fixedly connected with two first sliding blocks (31), and the first sliding blocks (31) are placed in two of the sliding grooves (24); A first magnetic block (32) is fixedly connected to the inner wall of the two first sliding blocks (31); a second magnetic block (33) is fixedly connected to the inner wall of the sliding groove (24) corresponding to the two first sliding blocks (31); the first magnetic block (32) and the second magnetic block (33) attract each other; A monitoring probe (34) is installed at the center point of the first installation plate (3); A second mounting plate (4) is provided on the inner surface of the second vertical tube (2) above the second vertical groove (22); two second sliders (41) are fixedly connected to the outer surface of the second mounting plate (4), and the second sliders (41) are placed in two of the slide grooves (24); a third magnetic block (42) is fixedly connected to the inner walls of the two second sliders (41); a fourth magnetic block (43) is fixedly connected to the inner walls of the slide grooves (24) corresponding to the two second sliders (41), and the fourth magnetic block (43) and the third magnetic block (42) attract each other; the second mounting plate (4) is limited in the second vertical tube (2) by the mutual attraction between the third magnetic block (42) and the fourth magnetic block (43); The cable (44) on the monitoring probe (34) passes through the center point of the second mounting plate (4) and is fixed on the second mounting plate (4); A mounting block (5) is slidably disposed in the second vertical pipe (2) above the second mounting plate (4); a monitoring host (51) is mounted on the upper surface of the mounting block (5), and a cable (44) passing through the second mounting plate (4) on the monitoring probe (34) is connected to the monitoring host (51); a protective shell (52) is mounted on the outside of the monitoring host (51).

2. The water level monitoring device for a hydraulic foundation pit according to claim 1 is characterized in that: The mounting block (5) is a floating block and slides in the second vertical pipe (2).

3. The water level monitoring device for a hydraulic foundation pit according to claim 2 is characterized in that: The outer ring surface of the mounting block (5) is rotatably connected with evenly arranged balls.

4. The water level monitoring device for a hydraulic foundation pit according to claim 1 is characterized in that: The upper surface of the second mounting plate (4) is fixedly connected with three storage compartments (45); the cable (44) extending to the top of the second mounting plate (4) is partially wound in the middle storage compartment (45) and then connected to the monitoring host (51).

5. The water level monitoring device for water conservancy foundation pit according to claim 1 is characterized by: The height of the second vertical pipe (2) is higher than the depth of the foundation pit.

6. The water level monitoring device for a hydraulic foundation pit according to claim 1 is characterized by: A filter screen (12) is installed in the first vertical groove (11).

7. The water level monitoring device for a hydraulic foundation pit according to claim 1 is characterized by: A filter cloth (23) is installed in the second vertical pipe (2).

8. The water level monitoring device for a hydraulic foundation pit according to claim 1 is characterized by: The first mounting plate (3) and the second mounting plate (4) are connected via a support rod (46).

9. The water level monitoring device for a hydraulic foundation pit according to claim 1 is characterized by: Two pull ropes (47) are fixedly connected to the upper surface of the second mounting plate (4), and parts of the pull ropes (47) are wound in two storage compartments (45); the other ends of the two pull ropes (47) are fixed to the lower surface of the mounting block (5), and the length of the pull ropes (47) is slightly shorter than the length of the cable (44) on the second mounting plate (4).

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