Water level measuring device for dam safety monitoring

Abstract

The invention provides a water level measuring device for dam safety monitoring, which comprises a water level monitoring assembly, a water level pipe, a filtering assembly and a driving assembly, the water level monitoring assembly comprises a water level monitoring meter, the front end of the water level monitoring meter is rotatably provided with a measuring wheel, and the measuring wheel is connected with an encoder of the water level monitoring meter through an input shaft; a rope is wound in the middle of the measuring wheel, a floater and a heavy hammer are fixed to the two ends of the rope respectively, the water level monitoring meter is fixed to the upper portion of the water level pipe, a partition plate is vertically fixed to the middle of the water level pipe, the water level pipe is divided into a left cavity and a right cavity through the partition plate, and the floater and the heavy hammer are arranged in the cavities on the two sides respectively. The filtering assembly is arranged at the bottom of the water level pipe, water entering the water level pipe is filtered through the filtering assembly, the driving assembly is arranged below the filtering assembly, the filtering assembly is driven by the driving assembly to move up and down, and impurities attached to the bottom of the filtering assembly are removed.

Description

Technical Field

[0001] The invention relates to the technical field of dam water level measurement, and in particular to a water level measuring device for dam safety monitoring. Background Art

[0002] The float type water level gauge is an instrument that uses a float to track the rise and fall of water level and directly transmits and records it mechanically. It is composed of a float, a measuring wheel, a weight and a suspension cable. In the working state, the float is fixedly connected to one end of the suspension cable, and the weight is fixedly connected to the other end of the suspension cable. The measuring wheel is installed on the input shaft of the water level encoder, and one end of the wire rope is connected to the float and the other end is connected to the weight. The wire rope is wound around the measuring wheel. When the liquid level changes, the float rises and falls with the change of the liquid level, the wire rope drives the measuring wheel to rotate, and the measuring wheel drives the input shaft of the encoder to rotate, and then the encoder outputs the corresponding real-time water level value.

[0003] When the water level changes dramatically, the float moves up and down with a large amplitude. The cable is easily subjected to greater tension and friction in this case. If the cable material is improperly designed or the installation is not precise enough, the cable may become entangled or knotted, which will not only affect the normal movement of the float and cause distortion of the water level measurement, but may also damage the equipment and increase the cost of maintenance and replacement. Summary of the invention

[0004] The object of the present invention is to provide a water level measuring device for dam safety monitoring to solve the problems raised in the above background technology.

[0005] The present invention is achieved through the following technical solutions:

[0006] A water level measuring device for dam safety monitoring comprises a water level monitoring component, a water level pipe, a filtering component and a driving component. The water level monitoring component comprises a water level monitoring gauge, a measuring wheel is rotatably mounted at the front end of the water level monitoring gauge, the measuring wheel is connected to an encoder of the water level monitoring gauge via an input shaft, a rope is wound around the middle of the measuring wheel, a float and a weight are respectively fixed at both ends of the rope, the water level monitoring gauge is fixed above the water level pipe, a partition is vertically fixed in the middle of the water level pipe, the water level pipe is divided into two left and right chambers by the partition, the float and the weight are respectively arranged in the chambers on both sides, the filtering component is arranged at the bottom of the water level pipe, the water entering the water level pipe is filtered by the filtering component, the driving component is arranged below the filtering component, the filtering component is driven by the driving component to move up and down, and impurities attached to the bottom of the filtering component are removed.

[0007] Specifically, the filter assembly includes a fixed block and a fixed ring, the fixed ring is fitted with the inner wall of the water level pipe, the fixed block is located at the center of the fixed ring, multiple groups of support rods are symmetrically fixed between the fixed block and the fixed ring, and a filter is fixed in the area surrounded by the fixed block support rods and the fixed ring.

[0008] Specifically, the driving assembly includes a fixed plate, which is fixed to the bottom of the water level pipe. A rotating shaft is rotatably installed in the middle of the fixed plate. A first impeller is fixed to the bottom end of the rotating shaft. A top block is fixed to the top of the rotating shaft. The top of the top block is set to an inclined shape. A top rod is rotatably installed below the support rod. The bottom end of the top rod contacts the inclined surface of the top block. A sleeve rod is fixed in the middle of the bottom of the partition. A movable rod is sealingly and slidably installed in the middle of the bottom of the sleeve rod. The fixed block is fixed to the bottom of the movable rod. A first spring is fixed inside the sleeve rod.

[0009] Specifically, a connected first air channel is provided between the fixed block and the support rod, and the first air channel is open at one end close to the inner wall of the water level tube, and a second impeller is rotatably installed on the side of the first air channel close to the fixed block, and a first magnetic block is fixed to the end of the rotating blade of the second impeller, and a support block is fixed in the middle of the inner cavity of the support rod, and a tapping rod is sealingly and slidably installed in the middle of the support block, one end of the tapping rod is adjacent to the water level tube, and a second magnetic block is fixed at one end of the tapping rod away from the inner wall of the water level tube, and the first magnetic block is attracted by the first magnetic block to move toward the middle of the water level tube, and a second spring for resetting the tapping rod is fixed on the side wall of the support block.

[0010] Specifically, when the first magnetic block rotates to be opposite to the second magnetic block, the first magnetic block and the second magnetic block will not be attracted together.

[0011] Specifically, a second air channel is provided in the middle of the partition, the bottom end of the second air channel is connected to the inner cavity of the sleeve rod, the top end of the second air channel extends to the top of the partition, and a first one-way valve is fixed to the top of the second air channel, and a second one-way valve is fixed in the middle of the support rod.

[0012] Specifically, a sphere is fixedly provided on the outer wall of the water level tube via a thin rope, and a shell is fixedly provided on the outer side of the water level tube.

[0013] Specifically, the sphere is an elastic sphere.

[0014] Specifically, the water level pipe and the shell are both made of stainless steel.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The water level measuring device for dam safety monitoring described in the present invention divides the water level pipe into two left and right chambers by setting a partition, and the float and the weight are respectively set in the chambers on both sides, which can effectively avoid the problem of cross-entanglement between the float and the weight when the water level fluctuates greatly. When the water level fluctuates violently, the float and the weight move in different chambers respectively, thereby ensuring that the rope can transmit movement smoothly and avoiding measurement errors or mechanical failures caused by entanglement.

[0017] 2. The water level measuring device for dam safety monitoring described in the present invention can effectively prevent impurities, silt and other solid materials in the water from entering the water level pipe by setting a filter component, thereby avoiding the accumulation of these materials in the water level pipe and reducing interference with the float and the weight, which not only ensures the accuracy of water level monitoring, but also avoids equipment wear or blockage due to incomplete filtration, effectively improves the reliability and durability of the water level monitoring device, reduces maintenance frequency, and reduces the risk of equipment failure; in addition, by setting a drive component to drive the filter component to move up and down, so that the filter is rinsed in water, impurities attached to the bottom of the filter can be continuously removed, so as to automatically clean the filter, which can effectively prevent the filter from being blocked, thereby ensuring the high efficiency and stability of the long-term operation of the filter component; and reducing equipment wear and failure, thereby extending the service life of the entire filter component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a stereoscopic diagram of a water level measuring device for dam safety monitoring of the present invention;

[0020] Figure 2 It is a cross-sectional view of a water level measuring device for dam safety monitoring according to the present invention;

[0021] Figure 3 It is a partial cross-sectional view of a water level measuring device for dam safety monitoring of the present invention;

[0022] Figure 4 yes Figure 2 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0024] Figure 6 yes Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0025] Figure 7 yes Figure 5 A partial enlarged view of point D in the middle.

[0026] In the figure: 1. water level monitoring meter; 2. measuring wheel; 3. water level pipe; 4. shell; 5. rope; 6. filter assembly; 7. partition; 8. float; 9. weight; 10. ball; 11. fixed block; 12. support rod; 13. fixed ring; 14. filter screen; 15. sleeve rod; 16. movable rod; 17. fixed plate; 18. rotating shaft; 19. first impeller; 20. top block; 21. top rod; 22. first spring; 23. first airway; 24. first one-way valve; 25. second airway; 26. second impeller; 27. first magnetic block; 28. knocking rod; 29. ​​second magnetic block; 30. support block; 31. second spring; 32. second one-way valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present invention more obvious, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the present invention.

[0028] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0029] It should be understood that the present invention can be implemented in different forms and should not be interpreted as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0030] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0031] In order to fully understand the present invention, a detailed structure will be proposed in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail as follows, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0032] See also Figures 1 to 3 A water level measuring device for dam safety monitoring comprises a water level monitoring component, a water level pipe 3, a filtering component 6 and a driving component. The water level monitoring component comprises a water level monitoring meter 1. A measuring wheel 2 is rotatably mounted at the front end of the water level monitoring meter 1. The measuring wheel 2 is connected to the encoder of the water level monitoring meter 1 through an input shaft. A rope 5 is wound around the middle of the measuring wheel 2. A float 8 and a weight 9 are fixed at both ends of the rope 5. The water level monitoring meter 1 is fixed above the water level pipe 3. A partition 7 is vertically fixed in the middle of the water level pipe 3. The water level pipe 3 is divided into two left and right chambers by the partition 7. The float 8 and the weight 9 are respectively arranged in the chambers on both sides. The filtering component 6 is arranged at the bottom of the water level pipe 3. The water entering the water level pipe 3 is filtered by the filtering component 6. The driving component is arranged below the filtering component 6. The filtering component 6 is driven by the driving component to move up and down to remove impurities attached to the bottom of the filtering component 6.

[0033] For details, see Figure 4 The filter assembly 6 includes a fixed block 11 and a fixed ring 13. The fixed ring 13 is in contact with the inner wall of the water level pipe 3. The fixed block 11 is located at the center of the fixed ring 13. A plurality of support rods 12 are symmetrically fixed between the fixed block 11 and the fixed ring 13. A filter screen 14 is fixed in the area surrounded by the fixed block 11, the support rods 12 and the fixed ring 13.

[0034] For details, see Figure 5The driving assembly includes a fixed plate 17, which is fixed to the bottom of the water level pipe 3. A rotating shaft 18 is rotatably installed in the middle of the fixed plate 17. A first impeller 19 is fixed to the bottom of the rotating shaft 18. The first impeller 19 is fixed to the bottom of the water level pipe 3 through the fixed plate 17. A top block 20 is fixed to the top of the rotating shaft 18. The top of the top block 20 is set to be inclined. A top rod 21 is rotatably installed below the support rod 12. The bottom end of the top rod 21 contacts the inclined surface of the top block 20. A sleeve rod 15 is fixed to the middle of the bottom of the partition 7. A movable rod 16 is sealed and slidably installed in the middle of the bottom of the sleeve rod 15. The fixed block 11 is fixed to the bottom of the movable rod 16. A first spring 22 is fixed inside the sleeve rod 15.

[0035] For details, see Figure 7 A connected first air channel 23 is provided between the fixed block 11 and the support rod 12, and one end of the first air channel 23 close to the inner wall of the water level tube 3 is open, and a second impeller 26 is rotatably installed on the side of the first air channel 23 close to the fixed block 11, and a first magnetic block 27 is fixed to the end of the rotating blade of the second impeller 26, and a support block 30 is fixed in the middle of the inner cavity of the support rod 12, and a tapping rod 28 is sealed and slidably installed in the middle of the support block 30, one end of the tapping rod 28 is adjacent to the water level tube 3, and a second magnetic block 29 is fixed to the end of the tapping rod 28 away from the inner wall of the water level tube 3, and the first magnetic block 27 is attracted by the first magnetic block 27 to move toward the middle of the water level tube 3, and a second spring 31 is fixed on the side wall of the support block 30 to reset the tapping rod 28.

[0036] Specifically, when the first magnetic block 27 rotates to be opposite to the second magnetic block 29, the first magnetic block 27 and the second magnetic block 29 will not be attracted together.

[0037] For details, see Figure 6 A second air channel 25 is provided in the middle of the partition 7, the bottom end of the second air channel 25 is connected to the inner cavity of the sleeve rod 15, the top end of the second air channel 25 extends to the top of the partition 7, and a first one-way valve 24 is fixed to the top of the second air channel 25, and a second one-way valve 32 is fixed in the middle of the support rod 12.

[0038] Exemplarily, the first one-way valve 24 only allows gas to enter the second air channel 25, and the second one-way valve 32 only allows gas to be discharged from the first air channel 23. When the movable rod 16 moves upward, the air in the inner cavity of the sleeve rod 15 is pressed into the first air channel 23 to drive the second impeller 26 to rotate, and then is discharged from the second one-way valve 32. When the movable rod 16 moves downward, the inner cavity of the sleeve rod 15 is automatically inflated through the first one-way valve 24 and the second air channel 25, which is convenient for next use. In this way, cyclic work can be achieved and work efficiency is improved.

[0039] Specifically, a sphere 10 is fixedly provided on the outer wall of the water level tube 3 via a thin rope, and a shell 4 is fixedly provided on the outer side of the water level tube 3 .

[0040] Specifically, the sphere 10 is an elastic ball.

[0041] Specifically, the water level pipe 3 and the shell 4 are both made of stainless steel.

[0042] For example, when the knocking rod 28 hits the inner wall of the water level tube 3, the vibration generated causes the ball 10 to be bounced off, and then automatically falls under gravity, and then the ball 10 hits the water level tube 3 again, thereby enhancing the vibration effect, so as to better shake off the impurities attached to the inner wall of the water level tube 3 and improve the cleaning efficiency. The shell 4 then separates the ball 10 from the external water to prevent the ball 10 from directly contacting the water, creating space for the ball 10 to move.

[0043] For example, the present invention provides a water level measuring device for dam safety monitoring, and its working principle is as follows: Figures 1 to 7 First, the device is installed at the designated position of the dam so that the lower part of the water level pipe 3 is immersed in water, the water levels inside and outside the water level pipe 3 are consistent, and the float 8 floats on the water surface. When the liquid level changes, the float 8 rises and falls with the change of the liquid level, and the weight 9 on the other side drives the measuring wheel 2 to rotate through the rope 5, and the measuring wheel 2 drives the input shaft of the encoder inside the water level monitoring meter 1 to rotate, and then the encoder outputs the corresponding real-time water level value; by setting the partition 7 to divide the inside of the water level pipe 3 into two left and right chambers, it can effectively avoid the problem of cross-entanglement between the float 8 and the weight 9 when the water level fluctuates greatly. When the water level fluctuates violently, the float 8 and the weight 9 move in different chambers respectively, thereby ensuring that the rope 5 can smoothly transmit the movement and avoid measurement errors or mechanical failures caused by entanglement.

[0044] In addition, the design of the filter assembly 6 can effectively prevent impurities, silt and other solid materials in the water from entering the water level pipe 3; the first impeller 19 is driven to rotate during the flow of water, and the top block 20 is driven to move through the rotating shaft 18. The bottom end of the top rod 21 is in contact with the edge of the inclined surface. When the top block 20 rotates, the top rod 21 is driven to move up and down, and at the same time, it is used in conjunction with the first spring 22 and the movable rod 16 to drive the filter assembly 6 to move up and down, so that the filter screen 14 is rinsed in the water, and impurities attached to the bottom of the filter screen 14 can be continuously removed, so that the filter screen 14 can be automatically cleaned, and the filter screen 14 can be effectively prevented from being blocked, thereby ensuring the high efficiency and stability of the long-term operation of the filter assembly 6; and reducing the wear and failure of the equipment, thereby extending the service life of the entire filter assembly 6.

[0045] In addition, when the movable rod 16 moves upward, the air in the inner cavity of the sleeve rod 15 is compressed and flows into the first air channel 23. The generated airflow drives the second impeller 26 to rotate, and the second impeller 26 synchronously drives the first magnetic block 27 to rotate. When the first magnetic block 27 approaches the second magnetic block 29, the second magnetic block 29 is attracted to move toward the first magnetic block 27, and the tapping rod 28 is synchronously driven to move. At this time, the second spring 31 is compressed, and the first magnetic block 27 continues to rotate. When the elastic force of the second spring 31 is greater than the suction force between the first magnetic block 27 and the second magnetic block 29, the tapping rod 28 is driven by the rebound of the second spring 31 to move in the direction away from the first magnetic block 27, so that the tapping rod 28 hits the inner wall of the water level pipe 3, so that the water level pipe 3 vibrates, and some fine impurities that pass through the filter 14 are shaken off the inner wall of the water level pipe 3, so that the inner wall of the water level pipe 3 is kept clean, thereby reducing the friction between the float 8 and the inner wall of the water level pipe 3, so that the device maintains low maintenance costs and high work efficiency during long-term operation.

[0046] 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 water level measuring device for dam safety monitoring, characterized in that: It includes a water level monitoring component, a water level pipe, a filtering component, and a driving component. The water level monitoring component includes a water level monitoring gauge. A measuring wheel is rotatably installed at the front end of the water level monitoring gauge. The measuring wheel is connected to the encoder of the water level monitoring gauge through an input shaft. A rope is wound around the middle of the measuring wheel. A float and a weight are respectively fixed at both ends of the rope. The water level monitoring gauge is fixed above the water level pipe. A partition is vertically fixed in the middle of the water level pipe. The water level pipe is divided into two left and right chambers by the partition. The float and the weight are respectively arranged in the chambers on both sides. The filtering component is arranged at the bottom of the water level pipe. The water entering the water level pipe is filtered by the filtering component. The driving component is arranged below the filtering component. The filtering component is driven by the driving component to move up and down to remove impurities attached to the bottom of the filtering component.

2. A water level measuring device for dam safety monitoring according to claim 1, characterized in that: The filter assembly includes a fixed block and a fixed ring, the fixed ring is fitted with the inner wall of the water level pipe, the fixed block is located at the center of the fixed ring, a plurality of groups of support rods are symmetrically fixed between the fixed block and the fixed ring, and a filter is fixedly provided in the interval surrounded by the fixed block support rods and the fixed ring.

3. A water level measuring device for dam safety monitoring according to claim 2, characterized in that: The driving assembly includes a fixed plate, which is fixed to the bottom of the water level pipe. A rotating shaft is rotatably installed in the middle of the fixed plate. A first impeller is fixed to the bottom end of the rotating shaft. A top block is fixed to the top of the rotating shaft. The top of the top block is set to an inclined shape. A top rod is rotatably installed below the support rod. The bottom end of the top rod contacts the inclined surface of the top block. A sleeve rod is fixed in the middle of the bottom of the partition. A movable rod is sealingly and slidably installed in the middle of the bottom of the sleeve rod. The fixed block is fixed to the bottom of the movable rod. A first spring is fixed inside the sleeve rod.

4. A water level measuring device for dam safety monitoring according to claim 3, characterized in that: A connected first air passage is provided between the fixed block and the support rod, and one end of the first air passage close to the inner wall of the water level tube is open, a second impeller is rotatably installed on the side of the first air passage close to the fixed block, a first magnetic block is fixed to the end of the rotating blade of the second impeller, a support block is fixed in the middle of the inner cavity of the support rod, a tapping rod is sealingly and slidably installed in the middle of the support block, one end of the tapping rod is adjacent to the water level tube, and a second magnetic block is fixed to the end of the tapping rod away from the inner wall of the water level tube, the first magnetic block is attracted by the first magnetic block to move toward the middle of the water level tube, and a second spring for resetting the tapping rod is fixed on the side wall of the support block.

5. A water level measuring device for dam safety monitoring according to claim 4, characterized in that: When the first magnetic block rotates to be opposite to the second magnetic block, the first magnetic block and the second magnetic block will not be attracted together.

6. A water level measuring device for dam safety monitoring according to claim 5, characterized in that: A second air channel is provided in the middle of the partition, the bottom end of the second air channel is connected to the inner cavity of the sleeve rod, the top end of the second air channel extends to the top of the partition, and a first one-way valve is fixed to the top of the second air channel, and a second one-way valve is fixed to the middle of the support rod.

7. A water level measuring device for dam safety monitoring according to claim 6, characterized in that: A sphere is fixedly arranged on the outer wall of the water level pipe via a thin rope, and a shell is fixedly arranged on the outer side of the water level pipe.

8. A water level measuring device for dam safety monitoring according to claim 7, characterized in that: The sphere is an elastic sphere.

9. A water level measuring device for dam safety monitoring according to claim 8, characterized in that: The water level pipe and the shell are both made of stainless steel.

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