A monitoring device for dam seepage pressure

Abstract

The present invention discloses a device for monitoring seepage pressure of a dam, specifically relating to the technical field of seepage pressure monitoring. The device comprises a pressure probe, a mounting sleeve, and a lower linkage monitoring assembly, wherein the lower linkage monitoring assembly comprises a plurality of pressure columns, inclined pressure bars, inclined push bars, a lower monitoring block, a convex guide column, an upper linkage monitoring assembly, an L-shaped inclined bar, a sleeved inclined bar, and an upper monitoring block. The present invention, through the lower linkage monitoring assembly and the upper linkage monitoring assembly, has the advantages of being able to monitor abnormal seepage pressure problems existing in multiple lower monitoring block areas through a single pressure probe, and simultaneously being able to monitor abnormal seepage pressure problems existing in multiple upper monitoring block areas through a single pressure probe, thereby achieving the dual advantages of efficient and large-scale monitoring and cost control, thereby resolving the problem of not only a small monitoring range but also a significantly increased production, use, and maintenance cost of the dam seepage pressure monitoring device.

Description

Technical Field

[0001] The present invention relates to the technical field of seepage pressure monitoring, and more particularly to a device for monitoring seepage pressure of a dam. Background Art

[0002] In water conservancy projects, when the dam is in operation, the water level difference between upstream and downstream will generate seepage pressure. If the seepage pressure is too large and unevenly distributed, it will cause seepage damage to the dam body or dam foundation, such as pipe burst and soil flow. The monitoring device can grasp the seepage pressure changes in real time. Once the seepage pressure is found to be abnormally high, timely measures can be taken, such as lowering the reservoir water level and conducting backfiltration and drainage to prevent the occurrence of seepage damage and ensure the structural safety of the dam. Therefore, it is particularly important to monitor the seepage pressure data of the dam with a monitoring device.

[0003] Patent publication number CN203811318U discloses a fiber Bragg grating pressure sensing device for dam seepage pressure monitoring based on a diaphragm-type packaging structure. This technology splits an optical signal coupled by a fiber coupler into n paths, each of which is sent to n pressure sensing units. The fiber coupler collects the optical signals reflected from the n pressure sensing units, and the optical signal output of the fiber coupler is connected to the second optical signal input of a circulator, which in turn is connected to the optical signal input of an optical spectrum analyzer. The pressure sensing unit comprises a pressure sensor and a flat diaphragm. This technology is suitable for a pressure monitoring system. However, this patent has the following drawbacks.

[0004] When monitoring the seepage pressure of dams, due to the large number of seepage pressure points, each point requires a single pressure sensor to reflect the seepage pressure value, which brings many problems. On the one hand, a single pressure sensor is difficult to synchronously monitor the seepage pressure exceeding the threshold at multiple points above and below. On the other hand, multiple points correspond to multiple pressure sensors, which greatly increases the production and use costs. At the same time, the subsequent maintenance work is also more complicated due to the large number of sensors, and the maintenance costs increase accordingly. Not only is the monitoring range small, but the production, use and maintenance costs of the dam seepage pressure monitoring device are also greatly increased. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: a device for monitoring seepage pressure of a dam, comprising a pressure probe and a mounting sleeve, wherein the mounting sleeve is fixedly connected to the outer wall of the pressure probe, and the sensing end of the pressure probe is provided with a lower linkage monitoring assembly, wherein the lower linkage monitoring assembly comprises:

[0006] A plurality of pressure columns are all connected to the sensing end of the pressure probe in abutting manner, and the bottom end of each pressure column is fixedly connected to an oblique pressure strip;

[0007] The oblique push bar is located on the lower inclined surface of the oblique pressure bar, and the upper inclined surface of the oblique push bar is slidably connected to the lower inclined surface of the oblique pressure bar. The oblique push bar is used to squeeze the oblique pressure bar to move upward. The bottom end of the oblique push bar is fixedly connected to the lower monitoring block, and the inner wall of the oblique push bar is slidably connected to the convex guide column;

[0008] The upper linkage monitoring assembly is located between two adjacent oblique pressure bars and includes:

[0009] An L-shaped oblique strip is located between two adjacent oblique pressure strips, the top end of the L-shaped oblique strip is in contact with the output end of the pressure probe, and the bottom end of the L-shaped oblique strip is slidably connected to a sleeve oblique strip, which slides along the inner wall of the mounting sleeve to squeeze the L-shaped oblique strip upward;

[0010] The upper monitoring block is fixedly connected to the top end of the sleeve bevel bar.

[0011] In a preferred embodiment, the upper inclined surface of the oblique push strip and the lower inclined surface of the oblique pressure strip are arranged in parallel, and the outer wall of the oblique push strip and the outer wall of the oblique pressure strip are both smooth surfaces.

[0012] In a preferred embodiment, the bottom inclined surface of the L-shaped oblique strip is parallel to the bottom inclined surface of the sleeve oblique strip;

[0013] The plurality of lower monitoring blocks and the plurality of upper monitoring blocks are all arranged in a circumferentially equidistant distribution.

[0014] In a preferred embodiment, a guide and limit assembly is installed at one end of the convex guide column, and the guide and limit assembly includes:

[0015] A limit block is fixedly connected to one end of the convex guide column, and the other end of the convex guide column is fixedly connected to a support bar;

[0016] A linkage bar is fixedly connected to the top outer wall of the support bar, the top of the linkage bar is fixedly connected to the lower surface of the mounting sleeve, the bottom end of the linkage bar is fixedly installed with a guide sleeve, the guide sleeve is slidably connected to the oblique pressure bar, the upper surface of the guide sleeve contacts the limiting sleeve, and the limiting sleeve is fixedly connected to the outer wall of the oblique pressure bar;

[0017] A guide rod is slidably inserted into the interior of the sleeved oblique strip, the guide rod is fixedly connected to the mounting sleeve, the outer wall of the L-shaped oblique strip is fixedly connected to the sleeve strip, and the lower surface of the sleeve strip is in contact with the support sleeve;

[0018] The fixing frame is fixedly connected to the outer wall of the supporting sleeve, and the top end of the fixing frame is fixedly connected to the mounting sleeve plate.

[0019] In a preferred embodiment, the vertical cross-section of the linkage bar is L-shaped, and the cross-sectional area of ​​the guide sleeve is larger than the cross-sectional area of ​​the limiting sleeve.

[0020] In a preferred embodiment, the cross-sectional area of ​​the sleeve strip is smaller than the cross-sectional area of ​​the support sleeve, and the vertical cross-sectional shape of the fixing frame is L-shaped.

[0021] In a preferred embodiment, the outer wall of the L-shaped oblique strip and the inner wall of the support sleeve are both smooth surfaces, and the sleeve strip is made of nylon.

[0022] In a preferred embodiment, a wireless transceiver is fixedly mounted on the upper surface of the pressure probe, and the wireless transceiver is electrically connected to the pressure probe.

[0023] In a preferred embodiment, a mounting block is fixedly connected to the upper surface of the mounting sleeve near its edge line, and a through hole with a circular vertical cross-section is provided inside the mounting block.

[0024] The technical effects and advantages of the present invention are as follows:

[0025] 1. The present invention has multi-point monitoring capability through the lower linkage monitoring component. Multiple lower monitoring blocks are distributed at different positions in the lower part, which can comprehensively and accurately monitor the seepage pressure conditions in various areas of the water conservancy project dam. At the same time, when any of the lower monitoring blocks is impacted by the seepage water body, the upper inclined surface of the inclined push bar will be squeezed on the lower inclined surface of the inclined pressure bar, and the pressure column will be squeezed on the pressure probe. The pressure probe can quickly bear the force to generate the seepage pressure value. The abnormal seepage pressure problem in multiple lower monitoring block areas can be monitored by a single pressure probe. This design avoids the need to equip each monitoring point with a single pressure probe, significantly reduces the purchase quantity of pressure probes, and thus reduces the cost investment in the production link. At the same time, during the use and maintenance process, the manpower and material costs are greatly reduced due to the reduction in the number of pressure probes. Not only is the monitoring range wider, but the production, use and maintenance costs of the dam seepage pressure monitoring device are also greatly reduced.

[0026] 2. The present invention adopts an upper linkage monitoring component, and multiple socketed oblique bars are distributed at different positions on the upper part of the dam of the water conservancy project. The upper seepage pressure can be monitored at multiple points. These areas can be monitored simultaneously by a single pressure probe. When any upper monitoring block is impacted by the seepage water body, the L-shaped oblique bar is moved upward by the socketed oblique bar, so that the pressure probe senses the seepage pressure value. This design greatly expands the monitoring range of a single pressure probe, and there is no need to equip each monitoring point with a single pressure probe, which significantly reduces the number of pressure probes used, thereby reducing costs in the production process. In subsequent use and maintenance, the small number of pressure probes greatly reduces the manpower and material resources investment, achieving the dual advantages of efficient monitoring and cost control.

[0027] 3. The present invention uses a guide and limit assembly. After the lower inclined surface of the oblique pressure bar is squeezed by the oblique push bar, the oblique pressure bar drives the limit sleeve to move upward, and the oblique pressure bar guides and limits upward along the inner wall of the guide sleeve. At the same time, the sleeved oblique bar guides and moves backward along the outer wall of the guide rod. The L-shaped oblique bar begins to guide and limit upward along the inner wall of the support sleeve. At the same time, the L-shaped oblique bar drives the sleeve bar to move upward. This design ensures that the oblique push bar, oblique pressure bar, sleeved oblique bar and L-shaped oblique bar move along the specified path. The movement is precise and stable, which effectively improves the overall reliability and monitoring accuracy of the device, and ensures that stable seepage pressure monitoring of multiple lower monitoring blocks and multiple upper monitoring blocks can be performed through a single pressure probe.

[0028] In summary, a single pressure probe can monitor abnormal seepage pressure problems in multiple lower monitoring block areas, and at the same time, a single pressure probe can monitor abnormal seepage pressure problems in multiple upper monitoring block areas, which greatly expands the monitoring range of a single pressure probe. There is no need to equip each monitoring point with a single sensor, thereby reducing costs in the production process and reducing maintenance costs in subsequent use and maintenance, achieving the dual advantages of efficient monitoring and cost control. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the dam seepage pressure monitoring device of the present invention.

[0030] Figure 2 This is a schematic diagram of the partial structure of the connection between the installation sleeve and the linkage bar of the present invention.

[0031] Figure 3 It is a schematic diagram of the partial structure of the connection between the oblique push bar and the lower monitoring block of the present invention.

[0032] Figure 4 This is a schematic diagram of the partial structure of the connection between the installation sleeve plate and the sleeve bevel strip of the present invention.

[0033] Figure 5 It is a schematic diagram of the local structure of the connection between the oblique pressure strip and the pressure column of the present invention.

[0034] Figure 6 It is a schematic diagram of the vertical cross-section structure of the dam seepage pressure monitoring device of the present invention.

[0035] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0036] Figure 8 It is a schematic diagram of the structure of the monitoring device for dam seepage pressure of the present invention from a top view.

[0037] The accompanying drawings are marked as follows: 1. pressure probe; 2. pressure column; 3. oblique pressure strip; 4. oblique push strip; 5. lower monitoring block; 6. convex guide column; 7. L-shaped oblique strip; 8. socket oblique strip; 9. upper monitoring block; 10. limit block; 11. support strip; 12. linkage strip; 13. mounting sleeve; 14. guide sleeve; 15. limit sleeve; 16. guide rod; 17. sleeve strip; 18. support sleeve; 19. fixing bracket; 20. wireless transceiver; 21. mounting block. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] like Figure 1 - Figure 8 A device for monitoring seepage pressure of a dam is shown, and the device is provided with a lower linkage monitoring component, an upper linkage monitoring component and a guide limit component. The setting of each component can monitor the abnormal seepage pressure problems in multiple lower monitoring blocks 5 areas through a single pressure probe 1. At the same time, a single pressure probe 1 can monitor the abnormal seepage pressure problems in multiple upper monitoring blocks 9 areas. The specific structural settings of each component are as follows.

[0040] In this embodiment, if Figure 1 - Figure 4 As shown, the outer wall of the pressure probe 1 is fixedly connected to the mounting sleeve 13, and the sensing end of the pressure probe 1 is provided with a lower linkage monitoring assembly, which includes: multiple pressure columns 2, all of which are connected in contact with the sensing end of the pressure probe 1, and the bottom end of each pressure column 2 is fixedly connected to an inclined pressure bar 3; an inclined push bar 4, located on the lower inclined surface of the inclined pressure bar 3, and the upper inclined surface of the inclined push bar 4 is slidably connected to the lower inclined surface of the inclined pressure bar 3, and the inclined push bar 4 is used to squeeze the inclined pressure bar 3 upward, and the bottom end of the inclined push bar 4 is fixedly connected to the lower monitoring block 5, and the inner wall of the inclined push bar 4 is slidably connected to the convex guide column 6; the upper linkage monitoring assembly is located between two adjacent inclined pressure bars 3, and the upper linkage monitoring assembly includes: an L-shaped inclined bar 7, located between two adjacent inclined pressure bars 3, the top end of the L-shaped inclined bar 7 is connected in contact with the output end of the pressure probe 1, and the bottom end inclined surface of the L-shaped inclined bar 7 is slidably connected to the sleeve inclined bar 8.

[0041] The sleeve bevel bar 8 slides along the inner wall of the mounting sleeve 13 to squeeze the L-shaped bevel bar 7 upward; the upper monitoring block 9 is fixedly connected to the top of the sleeve bevel bar 8. The upper inclined surface of the bevel push bar 4 is parallel to the lower inclined surface of the bevel pressure bar 3, and the outer walls of the bevel push bar 4 and the outer walls of the bevel pressure bar 3 are both smooth surfaces. The bottom inclined surface of the L-shaped bevel 7 is arranged parallel to the bottom inclined surface of the sleeve bevel 8; multiple lower monitoring blocks 5 and multiple upper monitoring blocks 9 are arranged in a circumferentially equidistant distribution, so that when any of the multiple lower monitoring blocks 5 at the lower part is impacted by the seepage water body, the inclined push bar 4 will be subjected to force to move the inclined pressure bar 3 upward, and the pressure column 2 will transmit the force to the pressure probe 1 for seepage pressure value monitoring. When any of the multiple upper monitoring blocks 9 at the upper part is impacted, the sleeve bevel 8 will provide extrusion pressure to the L-shaped bevel 7, so that the upward movement of the L-shaped bevel 7 will transmit the force to the pressure probe 1. The seepage pressure of the dam can be monitored at multiple points at different positions at the lower and upper parts, covering the key areas of the dam in an all-round way, and accurately grasping the seepage pressure conditions. Moreover, one pressure probe 1 can be used to realize abnormal seepage pressure monitoring of multiple monitoring areas, reducing the number of pressure probes 1 used and reducing the production, use and subsequent maintenance costs.

[0042] In this embodiment, if Figure 2 - Figure 7 As shown, one end of the convex guide column 6 is equipped with a guide limit assembly, which includes: a limit block 10, which is fixedly connected to one end of the convex guide column 6, and the other end of the convex guide column 6 is fixedly connected to a support bar 11; a linkage bar 12, which is fixedly connected to the top outer wall of the support bar 11, and the top of the linkage bar 12 is fixedly connected to the lower surface of the mounting sleeve 13; the bottom end of the linkage bar 12 is fixedly installed with a guide sleeve 14, which is slidably connected to the oblique pressure bar 3, and the upper surface of the guide sleeve 14 contacts the limit sleeve 15, and the limit sleeve 15 is fixedly connected to the outer wall of the oblique pressure bar 3; a guide rod 16 is slidably inserted into the inside of the sleeved oblique bar 8, and the guide rod 16 is fixedly connected to the mounting sleeve 13. The outer wall of the L-shaped oblique bar 7 is fixedly connected to a sleeve strip 17, and the lower surface of the sleeve strip 17 contacts the support sleeve 18; a fixing frame 19, which is fixedly connected to the outer wall of the support sleeve 18, and the top of the fixing frame 19 is fixedly connected to the mounting sleeve 13.

[0043] The vertical cross-section of the linkage bar 12 is L-shaped, and the cross-sectional area of ​​the guide sleeve 14 is larger than that of the limiting sleeve 15. The cross-sectional area of ​​the sleeve 17 is smaller than that of the support sleeve 18, and the vertical cross-sectional shape of the fixing frame 19 is L-shaped. The outer wall of the L-shaped inclined bar 7 and the inner wall of the support sleeve 18 are both smooth surfaces. The sleeve 17 is made of nylon material to facilitate the support of the linkage bar 12 by the installation sleeve 13. The linkage bar 12 supports the guide sleeve 14, and the guide sleeve 14 provides positional support for the limiting sleeve 15. The guide sleeve 14 also provides vertical guidance and position limitation for the diagonal pressure bar 3. The linkage bar 12 can also support the supporting bar 11. The limit block 10 on the convex bar guide column 6 limits the rear position of the diagonal push bar 4, and the convex bar guide column 6 guides and limits the horizontal movement of the diagonal push bar 4. At the same time, the sleeve plate 13 is installed to support the fixed frame 19, the fixed frame 19 supports the support sleeve 18, the support sleeve 18 supports the sleeve strip 17, and the support sleeve 18 realizes vertical guide limitation for the internal L-shaped oblique strip 7, ensuring that the L-shaped oblique strip 7 moves upward according to the vertical guide limit. The guide limit design of each component can ensure that the relevant components move in the predetermined direction and path when subjected to force, making the force transmission more accurate, thereby improving the accuracy and reliability of seepage pressure monitoring.

[0044] In this embodiment, if Figure 8 As shown, a wireless transceiver 20 is fixedly installed on the upper surface of the pressure probe 1. The wireless transceiver 20 is electrically connected to the pressure probe 1 so that when the osmotic pressure value sensed by the pressure probe 1 exceeds the pressure value set by the wireless transceiver 20, the osmotic pressure value is transmitted to the wireless transceiver 20 through the pressure probe 1 to realize wireless remote monitoring.

[0045] In this embodiment, if Figure 8 As shown, a mounting block 21 is fixedly connected to the upper surface of the mounting sleeve 13 near its edge line. A through hole with a circular vertical cross-section is provided inside the mounting block 21 to facilitate the mounting sleeve 13 to be placed in the detection hole for seepage pressure of the water conservancy project dam. Holes are drilled in the concrete in the detection hole for seepage pressure of the water conservancy project dam, so that the expansion bolts are installed in the mounting block 21 for docking installation. The mounting block 21 provides a firm fixing force for the mounting sleeve 13.

[0046] The working principle of the dam seepage pressure monitoring device of the present invention is as follows:

[0047] First, when the present invention is installed and used, the installation sleeve 13 is placed in the detection hole for the seepage pressure of the water conservancy project dam, and the wireless transceiver 20 and the pressure probe 1 are powered by the mains power harness. Then, when the installation sleeve 13 drives the installation block 21 to move to the installation position inside the detection hole for the seepage pressure of the water conservancy project dam, a hole is drilled in the concrete in the detection hole for the seepage pressure of the water conservancy project dam, so that the expansion bolt can be installed inside the installation block 21, and the installation block 21 is fixed in the detection hole for the seepage pressure of the water conservancy project dam. The installation block 21 supports the installation sleeve 13, and the installation sleeve 13 supports the pressure probe 1. The multiple lower monitoring blocks 5 can make multiple lower contact points on the inner wall of the detection hole for the seepage pressure of the water conservancy project dam, and the multiple upper monitoring blocks 9 can make multiple upper contact points on the inner wall of the detection hole for the seepage pressure of the water conservancy project dam.

[0048] Secondly, when the present invention performs guiding and limiting, the sleeve 13 is installed to support the linkage bar 12, the linkage bar 12 supports the guide sleeve 14, the guide sleeve 14 provides limiting support for the limiting sleeve 15, and the oblique pressure bar 3 drives the limiting sleeve 15 to move downward and contact the upper surface of the guide sleeve 14, while the guide sleeve 14 can vertically guide and limit the outer wall of the oblique pressure bar 3, and the linkage bar 12 supports the support bar 11, the support bar 11 supports the convex bar guide column 6, the limiting block 10 on the convex bar guide column 6 can limit the rear of the oblique push bar 4, while the convex bar guide column 6 can achieve a guiding and limiting operation of stable horizontal movement of the oblique push bar 4. At the same time, the sleeve 13 is installed to support the fixed frame 19, the fixed frame 19 supports the support sleeve 18, the support sleeve 18 provides vertical limiting support for the sleeve 17, and the support sleeve 18 guides and limits the inner wall of the sleeve 17, ensuring that the L-shaped oblique bar 7 is guided and limited in the numerical upward movement direction.

[0049] Then, when the present invention performs upper and lower linkage monitoring, when one of the multiple lower monitoring blocks 5 is impacted by the seepage water of the water conservancy project dam, the seepage water is squeezed on one of the lower monitoring blocks 5, and the lower monitoring block 5 is squeezed on the inclined push bar 4, and the inclined push bar 4 is forced to move backward, and the inclined push bar 4 moves backward along the outer wall guide limit of the convex guide column 6. The upper inclined surface of the inclined push bar 4 will be squeezed on the lower inclined surface of the inclined pressure bar 3, so that the lower inclined surface of the inclined pressure bar 3 is squeezed by the oblique push bar 4, so that the inclined pressure bar 3 drives the limit sleeve 15 to move upward, and at the same time, the oblique pressure bar 3 moves upward along the inner wall guide limit of the guide sleeve 14, so that the oblique pressure bar 3 is squeezed on the pressure column 2, and the pressure column 2 is squeezed on the pressure probe 1.

[0050] This means that the sensing end of the pressure probe 1 is stressed to produce a seepage pressure value. When the seepage pressure value sensed by the pressure probe 1 exceeds the pressure value set by the wireless transceiver 20, the seepage pressure value is transmitted to the wireless transceiver 20 via the pressure probe 1. The wireless transceiver 20 can then wirelessly transmit the value to the backend computer, indicating that there is an abnormality in the seepage pressure value of the water conservancy project dam. In this way, multiple lower monitoring blocks 5 can perform multi-point monitoring of the seepage pressure of the water conservancy project dam at different locations below. As long as the seepage pressure value of any of the lower monitoring blocks 5 exceeds the pressure value set by the wireless transceiver 20, it is immediately known that there is an abnormality in the area monitored by the multiple lower monitoring blocks 5.

[0051] When one of the multiple upper monitoring blocks 9 is impacted by the seepage water of the hydraulic engineering dam, the upper monitoring block 9 is forced to squeeze the sleeve bevel bar 8, and the sleeve bevel bar 8 moves backward along the outer wall of the guide rod 16. The inclined surface of the bottom end of the sleeve bevel bar 8 begins to squeeze the inclined surface of the bottom end of the L-shaped bevel bar 7, so that the sleeve bevel bar 8 causes the L-shaped bevel bar 7 to start to move upward along the inner wall of the support sleeve 18. At the same time, the L-shaped bevel bar 7 drives the sleeve bar 17 to move upward, and the top end of the L-shaped bevel bar 7 is squeezed on the sensing end of the pressure probe 1. The sensing end of the pressure probe 1 is squeezed to sense the seepage pressure value. When the seepage pressure value sensed by the pressure probe 1 exceeds the pressure value set by the wireless transceiver 20, the seepage pressure value is transmitted to the wireless transceiver 20 through the pressure probe 1, and the wireless transceiver 20 wirelessly transmits it to the background computer, so that it can be known that the seepage pressure value of the hydraulic engineering dam is abnormal. Multiple socketed oblique bars 8 can perform multi-point monitoring of the seepage pressure of the water conservancy project dam at different upper positions. As long as the seepage pressure value of any lower socketed oblique bar 8 exceeds the pressure value set by the wireless transceiver 20, it will be immediately known that there is an abnormal problem in the area monitored by multiple socketed oblique bars 8. Through a single pressure probe 1, the abnormal seepage pressure problems in multiple lower monitoring blocks 5 areas can be monitored, and the abnormal seepage pressure problems in multiple upper monitoring blocks 9 areas can be monitored at the same time.

[0052] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for monitoring seepage pressure of a dam, comprising a pressure probe and a mounting sleeve, wherein the mounting sleeve is fixedly connected to the outer wall of the pressure probe, and the sensing end of the pressure probe is provided with a lower linkage monitoring assembly, characterized in that: The lower linkage monitoring component includes: The cam is pressed against the pressure sensor, and the ... At the top, one end of the convex guide post is equipped with a guide limit assembly, and the guide limit assembly includes: a limit block fixedly connected to one end of the convex guide post, and the other end of the convex guide post is fixedly connected to a support bar; a linkage bar is fixedly connected to the top outer wall of the support bar, the top of the linkage bar is fixedly connected to the lower surface of the mounting sleeve, and the bottom end of the linkage bar is fixedly installed with a guide sleeve, the guide sleeve is slidably connected to the oblique pressure bar, the upper surface of the guide sleeve contacts the limit sleeve, and the limit sleeve is fixedly connected to the outer wall of the oblique pressure bar; the guide rod is slidably inserted into the inside of the sleeved oblique bar, the guide rod is fixedly connected to the mounting sleeve, the outer wall of the L-shaped oblique bar is fixedly connected with the sleeve, and the lower surface of the sleeve contacts the support sleeve; the fixing frame is fixedly connected to the outer wall of the support sleeve, and the top of the fixing frame is fixedly connected to the mounting sleeve.

2. The dam seepage pressure monitoring device according to claim 1, characterized in that: The upper inclined surface of the oblique push strip and the lower inclined surface of the oblique pressing strip are arranged in parallel, and the outer wall of the oblique push strip and the outer wall of the oblique pressing strip are both smooth surfaces.

3. The dam seepage pressure monitoring device according to claim 1, characterized in that: The bottom inclined surface of the L-shaped oblique strip is parallel to the bottom inclined surface of the sleeve oblique strip; The plurality of lower monitoring blocks and the plurality of upper monitoring blocks are all arranged in a circumferentially equidistant distribution.

4. The dam seepage pressure monitoring device according to claim 1, characterized in that: The vertical cross-section of the linkage bar is L-shaped, and the cross-sectional area of ​​the guide sleeve is larger than the cross-sectional area of ​​the limiting sleeve.

5. The dam seepage pressure monitoring device according to claim 1, characterized in that: The cross-sectional area of ​​the sleeve strip is smaller than the cross-sectional area of ​​the support sleeve, and the vertical cross-sectional shape of the fixing frame is L-shaped.

6. The dam seepage pressure monitoring device according to claim 1, characterized in that: The outer wall of the L-shaped oblique strip and the inner wall of the support sleeve are both smooth surfaces, and the sleeve strip is made of nylon.

7. The dam seepage pressure monitoring device according to claim 1, characterized in that: A wireless transceiver is fixedly mounted on the upper surface of the pressure probe, and the wireless transceiver is electrically connected to the pressure probe.

8. The dam seepage pressure monitoring device according to claim 1, characterized in that: A mounting block is fixedly connected to the upper surface of the mounting sleeve near its edge line, and a through hole with a circular vertical cross-section is provided inside the mounting block.

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