A flood control alarm device for water conservancy projects

Abstract

The invention discloses a flood control alarm device for a water conservancy project, which relates to the technical field of water conservancy projects, and comprises a detection cylinder, a detection device and a limit device. A placement plate is fixedly installed on the top of the detection cylinder, and a scale rod is rotatably installed on the surface of the placement plate, wherein the detection device comprises a slide bar, a float block, a connecting rod, a filter plate, a rotating rod, a stirring rod, a gear and a spring. The rotation of the gear drives the stirring rod to rotate, and the rotation of the stirring rod stirs the debris close to the filter plate. The slide bar is slidably installed on the inner wall of the detection cylinder, the float block is fixedly installed on the bottom of the slide bar, the connecting rod is fixedly installed on the bottom of the float block, and a rack is fixedly installed on the bottom of the connecting rod. By keeping the filter area clean, the flood control alarm system can operate more stably and reliably. Cleaning the debris in the filter area helps to reduce the risk of system failure and ensure that the system can respond quickly to flood conditions when needed.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, and in particular to a flood prevention alarm device for water conservancy projects. Background Art

[0002] Flood alarm devices usually consist of sensors, data acquisition systems, alarm systems, data processing and analysis units, and control centers.

[0003] Patent announcement number CN212647637U relates to a flood control alarm device for water conservancy projects, which aims to provide an alarm device that can send out warning signals in time when the flood season comes, including a cylinder, an alarm, and a floating plate; the cylinder is provided with four chute symmetrically about the center, two of the symmetrical chute are equipped with alarms, and the remaining two symmetrical chute are equipped with floating plates. This patent has the advantages of low assembly difficulty and easy installation.

[0004] In the above patent, the alarm is installed in two symmetrical chutes, so that the alarm device is easy to assemble and install. However, no cleaning device is provided at the bottom of the device. If there is no cleaning device at the bottom of the flood alarm device, dirt, mud or other debris may accumulate at the bottom during the equipment monitoring process. These substances may clog the sensors or other key components, causing device failure or false alarm. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a flood control alarm device for a water conservancy project, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a flood control alarm device for a water conservancy project, including a detection cylinder, a detection device and a limit device, a placement plate is fixedly installed on the top of the detection cylinder, and a scale rod is installed on the surface of the placement plate for rotation and penetration, wherein the detection device includes a slide bar, a floating block, a connecting rod, a filter plate, a rotating rod, a stirring rod, a gear and a spring, the rotation of the gear drives the stirring rod to rotate, and the rotation of the stirring rod to move the debris close to the filter plate, the slide bar is slidably installed on the inner wall of the detection cylinder, the floating block is fixedly installed on the bottom of the slide bar, the connecting rod is fixedly installed on the bottom of the floating block, a rack is fixedly installed on the bottom of the connecting rod, the filter plate is fixedly installed on the inner wall of the detection cylinder, the rotating rod is rotatably installed on the inner wall of the detection cylinder, the stirring rod is fixedly installed on the surface of the rotating rod, the gear is fixedly installed on the surface of the rotating rod, a filter hole is opened on the surface of the filter plate, and the spring is fixedly installed on the inner wall of the filter hole, by keeping the filter area clean, the flood control alarm system can operate more stably and reliably, and cleaning the debris in the filter area helps to reduce the risk of system failure and ensure that the system can respond quickly to flood conditions when needed.

[0007] According to the above technical solution, the gear is meshed with the rack, the spring sheet is in contact with the rack, a stirring hole is provided on the surface of the stirring rod, and the vibration of the spring sheet drives the filter plate to resonate together. The vibration of the filter plate can effectively clean the filter plate and prevent the accumulation of debris.

[0008] According to the above technical solution, the limiting device includes a rotating block, a short rod, a long rod, a round rod, a rectangular rod, a rubber block and a limiting rod. The two limiting rods move toward each other to release the limitation on the short rod. The rotating block is fixedly mounted on the surface of the scale rod, a slider is slidably mounted on the surface of the rotating block, the short rod is hingedly mounted on the surface of the slider, the long rod is hingedly mounted on the surface of the short rod, the round rod is fixedly mounted on the surface of the long rod, the rectangular rod is fixedly mounted on the surface of the round rod, the rubber block is rotatably mounted on the top of the placement plate, and the limiting rod is fixedly mounted on the top of the placement plate. Preventing accidental touch helps to reduce the risk of false flood alarms. If the warning water level line is accidentally touched and moved, it may lead to unnecessary emergency response, evacuation or other flood prevention measures, waste resources and cause unnecessary social tension.

[0009] According to the above technical solution, a hollow frame is fixedly installed on the surface of the rotating block, a limit rod is slidably installed on the inner wall of the hollow frame, a No. 1 spring is arranged between the hollow frame and the limit rod, a non-Newtonian fluid is arranged inside the rubber block, a No. 2 spring is arranged between the slider and the rotating block, and a No. 3 spring is arranged between the short rod and the long rod. The short rod moves slowly to reset, so that the rotating block rotates slowly to reset. The slow reset process gives the operator enough time to observe and deal with potential problems. If an abnormal situation occurs during the adjustment process, it is easier for humans to detect and take necessary measures.

[0010] According to the above technical solution, it also includes an adjusting device and a protective device, the adjusting device includes a scale ring, an adjusting block, an alarm and a button, after the limit between the adjusting block and the hollow rod is released, the adjusting block can be manually adjusted to change the height of the warning water level line, the scale ring is fixedly mounted on the surface of the scale rod, a slide groove is opened on the surface of the detection cylinder, the adjusting block is slidably mounted on the inner wall of the slide groove, the alarm is fixedly mounted on the surface of the adjusting block, and the button is fixedly mounted on the bottom of the alarm, and the easily adjustable warning water level line allows real-time adjustment according to changing hydrological conditions and forecast information, thereby improving the flexibility of flood warning and management.

[0011] According to the above technical solution, a placing cylinder is fixedly installed at the bottom of the inner wall of the slide groove, a rotating groove is opened on the inner wall of the placing cylinder, a rotating plate is threadedly installed on the inner wall of the placing cylinder, a linkage rod is fixedly installed on the top of the rotating plate, and the end of the linkage rod away from the placing cylinder is rotatably connected to the bottom of the adjusting block, the rotating plate is in contact with the rotating groove, a No. 4 spring is arranged between the scale rod and the placing plate, the button is electrically connected to the alarm, and the linkage rod moves slowly to drive the adjusting block to move slowly. By accurately adjusting the warning water level line, the accuracy of the flood control system can be improved, which helps to avoid false alarms or missed alarms and improve the accuracy of predictions and early warnings.

[0012] According to the above technical solution, the protection device includes a fixed rod, a hollow rod, a fixed plate, a protective ring, a detection rod and a protective frame. The protective ring moves downward and contacts the protective frame to form a limit. The fixed rod is fixedly installed on the surface of the detection tube, the hollow rod is slidably installed on the surface of the fixed rod, the fixed plate is fixedly installed on the surface of the hollow rod, the protective ring is slidably installed on the surface of the detection tube, the detection rod is fixedly installed on the bottom of the protective ring, and the protective frame is fixedly installed on the surface of the hollow rod. When subjected to external force impact, the stable connection can reduce or prevent the alarm from falling off or shifting due to impact, ensuring that the equipment can maintain normal working condition when facing external impact.

[0013] According to the above technical solution, a hollow hole is opened on the surface of the hollow rod, a No. 5 spring is arranged between the fixed rod and the hollow rod, and a No. 6 spring is arranged between the protective ring and the detection tube. The No. 5 spring can drive the hollow rod to reset, and the No. 6 spring can drive the protective ring to reset.

[0014] The present invention provides a flood control alarm device for water conservancy projects. It has the following beneficial effects:

[0015] (1) The flood control alarm device of the water conservancy project can move the debris near the filter plate by rotating the stirring rod. By keeping the filter area clean, the flood control alarm system can operate more stably and reliably. Cleaning the debris in the filter area helps to reduce the risk of system failure and ensure that the system can respond quickly to flood conditions when needed. At the same time, the rack moves upward and contacts the spring piece. The spring piece and the rack vibrate due to contact and friction. The vibration of the spring piece drives the filter plate to resonate together. The vibration of the filter plate can effectively clean the filter plate and prevent the accumulation of debris. The debris accumulated over a long period of time may cause wear or corrosion to the filter plate. By regularly cleaning the filter plate, the life of the filter plate can be extended.

[0016] (2) When the warning water level line needs to be adjusted, the two limit rods need to be manually pulled toward each other to release the limit on the short rod. Preventing accidental touch helps reduce the risk of false flood alarms. If the warning water level line is moved by accident, it may lead to unnecessary emergency response, evacuation or other flood prevention measures, waste resources and cause unnecessary social tension. At the same time, the rubber block is squeezed when the rectangular rod is reset. The rectangular rod moves slowly, causing the short rod and the long rod to move slowly and reset. The short rod moves slowly and resets, causing the rotating block to rotate slowly and reset. The slow reset process gives the operator enough time to observe and respond to potential problems. If an abnormal situation occurs during the adjustment process, it is easier for humans to detect and take necessary measures to avoid the occurrence of emergencies.

[0017] (3) The flood control alarm device of the water conservancy project can manually adjust the adjusting block to change the height of the warning water level line after the limit between the adjusting block and the hollow rod is released. The conveniently adjustable warning water level line allows real-time adjustment according to the changing hydrological conditions and forecast information, so that the system can respond to changes in flood risks more quickly, improving the flexibility of flood warning and management. At the same time, the linkage rod moves slowly to drive the adjusting block to move slowly, so as to achieve the effect of accurately adjusting the warning water level line. By accurately adjusting the warning water level line, the accuracy of the flood control system can be improved, which helps to avoid false alarms or missed alarms, ensure that the setting of the warning water level matches the actual situation, and improve the accuracy of prediction and warning.

[0018] (4) In the flood control alarm device of the water conservancy project, if the detection tube is subjected to a strong impact underwater, the detection rod moves downward, driving the protective ring to move downward. The protective ring moves downward and contacts the protective frame to form a limit. Strengthening the connection between the alarm and the fixed end can increase the stability of the entire device. When subjected to external force impact, the stable connection can reduce or prevent the alarm from falling off or shifting due to impact, ensuring that the equipment can maintain normal working condition when facing external impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the position structure of the detection tube and the placement plate of the present invention;

[0021] Figure 3 This is a schematic diagram of the position structure of the alarm and the adjustment block of the present invention;

[0022] Figure 4 This is a schematic diagram of the position structure of the hollow rod and the fixed plate of the present invention;

[0023] Figure 5 It is a schematic diagram of the position structure of the scale rod and the scale ring of the present invention;

[0024] Figure 6 For the present invention Figure 4 A schematic diagram of the structure enlargement of part A;

[0025] Figure 7 For the present invention Figure 5 A schematic diagram of the structure of part B in the middle is enlarged;

[0026] Figure 8 For the present invention Figure 3 The enlarged schematic diagram of the structure of part C in the middle;

[0027] Fig. 9 For the present invention Figure 3 Schematic diagram of the enlarged structure of part D.

[0028] In the figure: 1. detection cylinder; 2. placement plate; 31. sliding rod; 32. floating block; 33. connecting rod; 34. filter plate; 35. rotating rod; 36. stirring rod; 37. gear; 38. spring; 41. rotating block; 42. short rod; 43. long rod; 44. round rod; 45. rectangular rod; 46. rubber block; 47. limiting rod; 48. hollow frame; 49. limiting rod; 51. scale rod; 52. scale ring; 53. adjustment block; 54. alarm; 55. button; 56. placement cylinder; 57. rotating plate; 58. linkage rod; 61. fixed rod; 62. hollow rod; 63. fixed plate; 64. protective ring; 65. detection rod; 66. protective frame. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-7One embodiment of the present invention is: a flood control alarm device for a water conservancy project, comprising a detection tube 1, a detection device and a limit device, a placement plate 2 is fixedly installed on the top of the detection tube 1, and a scale rod 51 is installed on the surface of the placement plate 2 to rotate and penetrate, wherein the detection device comprises a slide bar 31, a floating block 32, a connecting rod 33, a filter plate 34, a rotating rod 35, a stirring rod 36, a gear 37 and a spring 38, the floating block 32 moves upward to drive the slide bar 31 and the connecting rod 33 to move upward, the connecting rod 33 moves upward to drive the rack to move upward, the rack moves upward to drive the gear 37 to rotate, the gear 37 rotates to drive the stirring rod 36 to rotate, and the stirring rod 36 rotates to move the debris close to the filter plate 34, The slide bar 31 is slidably mounted on the inner wall of the detection cylinder 1, the float block 32 is fixedly mounted on the bottom of the slide bar 31, the connecting rod 33 is fixedly mounted on the bottom of the float block 32, a rack is fixedly mounted on the bottom of the connecting rod 33, the filter plate 34 is fixedly mounted on the inner wall of the detection cylinder 1, the rotating rod 35 is rotatably mounted on the inner wall of the detection cylinder 1, the stirring rod 36 is fixedly mounted on the surface of the rotating rod 35, the gear 37 is fixedly mounted on the surface of the rotating rod 35, the filter plate 34 surface is provided with a filter hole, and the spring piece 38 is fixedly mounted on the inner wall of the filter hole. By keeping the filter area clean, the flood alarm system can operate more stably and reliably, and cleaning up debris in the filter area helps reduce the risk of system failure and ensures that the system can respond quickly to flood conditions when needed.

[0031] The gear 37 is meshed with the rack, the spring piece 38 is in contact with the rack, and a stirring hole is provided on the surface of the stirring rod 36. The vibration of the spring piece 38 drives the filter plate 34 to resonate together. The vibration of the filter plate 34 can effectively clean the filter plate 34 and prevent the accumulation of debris.

[0032] The limiting device includes a rotating block 41, a short rod 42, a long rod 43, a round rod 44, a rectangular rod 45, a rubber block 46 and a limiting rod 47. When the warning water level line needs to be adjusted, it is necessary to manually pull the two limiting rods 49 to move toward each other. The two limiting rods 49 move toward each other to release the limitation on the short rod 42. The rotating block 41 is fixedly mounted on the surface of the scale rod 51, and a slider is slidably mounted on the surface of the rotating block 41. The short rod 42 is hingedly mounted on the surface of the slider, the long rod 43 is hingedly mounted on the surface of the short rod 42, the round rod 44 is fixedly mounted on the surface of the long rod 43, the rectangular rod 45 is fixedly mounted on the surface of the round rod 44, the rubber block 46 is rotatably mounted on the top of the placement plate 2, and the limiting rod 47 is fixedly mounted on the top of the placement plate 2. Preventing accidental touch helps reduce the risk of false flood alarms. If the warning water level line is accidentally touched and moved, it may lead to unnecessary emergency response, evacuation or other flood prevention measures, waste resources and cause unnecessary social tension.

[0033] A hollow frame 48 is fixedly installed on the surface of the rotating block 41, and a limit rod 49 is slidably installed on the inner wall of the hollow frame 48. A No. 1 spring is arranged between the hollow frame 48 and the limit rod 49, a non-Newtonian fluid is arranged inside the rubber block 46, a No. 2 spring is arranged between the slider and the rotating block 41, and a No. 3 spring is arranged between the short rod 42 and the long rod 43. The rectangular rod 45 can only move slowly due to the action of the non-Newtonian fluid inside the rubber block 46. The non-Newtonian fluid will solidify instantly when it is squeezed quickly, resulting in the non-Newtonian fluid can only be pushed slowly to make it flow. The short rod 42 moves slowly to reset, so that the rotating block 41 rotates slowly to reset. The slow reset process gives the operator enough time to observe and deal with potential problems. If an abnormal situation occurs during the adjustment process, it can be more easily detected manually and necessary measures can be taken.

[0034] When the present embodiment is working, when the water level of the water area monitored by the alarm device rises, the change in water level will cause the float 32 to move upward, and the upward movement of the float 32 drives the slide bar 31 and the connecting rod 33 to move upward, and the upward movement of the connecting rod 33 drives the rack to move upward, and the upward movement of the rack drives the gear 37 to rotate, and the rotation of the gear 37 drives the stirring rod 36 to rotate, and the rotation of the stirring rod 36 stirs the debris close to the filter plate 34, and at the same time, the rack moves upward and contacts with the spring piece 38, and the spring piece 38 and the rack contact and friction generate vibration, and the vibration of the spring piece 38 drives the filter plate 34 to resonate together, and when the water level continues to rise to the warning range, the float 32 moves upward to press the button 55 at the bottom of the alarm 54, and the button 55 is pressed by the float 32 to drive the alarm 54 to issue a remote alarm.

[0035] When the warning water level line needs to be adjusted, it is necessary to first manually pull the two limit rods 49 toward each other to release the limit on the short rod 42. After the limit between the short rod 42 and the limit rod 49 is released, manually pull the long rod 43 to move in the direction away from the hollow frame 48. The movement of the long rod 43 drives the short rod 42 to move. The movement of the short rod 42 drives the slider to move. The movement of the slider drives the rotating block 41 to rotate. At the same time, the long rod 43 moves in the direction away from the hollow frame 48 to drive the round rod 44 to move. The round rod 44 moves The rectangular rod 45 is driven to move, and the rectangular rod 45 moves and contacts the rubber block 46 to squeeze the rubber block 46 to rotate. At this time, the rubber block 46 is not limited by the limiting rod 47. When the rectangular rod 45 is reset, the rubber block 46 is squeezed. At this time, the rubber block 46 is limited by the limiting rod 47 and cannot rotate. The rectangular rod 45 can only move slowly due to the non-Newtonian fluid inside the rubber block 46. The slow movement of the rectangular rod 45 makes the short rod 42 and the long rod 43 move slowly and reset. The slow movement and reset of the short rod 42 makes the rotating block 41 rotate slowly and reset.

[0036] See also Figure 1-9On the basis of the above embodiment, another embodiment of the present invention further includes an adjusting device and a protecting device, the adjusting device includes a scale ring 52, an adjusting block 53, an alarm 54 and a button 55, the hollow rod 62 rotates to release the limit on the adjusting block 53, after the limit between the adjusting block 53 and the hollow rod 62 is released, the adjusting block 53 can be manually adjusted to change the height of the warning water level line, the scale ring 52 is fixedly mounted on the surface of the scale rod 51, a slide groove is provided on the surface of the detection tube 1, the adjusting block 53 is slidably mounted on the inner wall of the slide groove, the alarm 54 is fixedly mounted on the surface of the adjusting block 53, and the button 55 is fixedly mounted on the bottom of the alarm 54, the conveniently adjustable warning water level line allows real-time adjustment according to changing hydrological conditions and forecast information, thereby improving the flexibility of flood warning and management.

[0037] A placing cylinder 56 is fixedly installed at the bottom of the inner wall of the slide, a rotating groove is opened on the inner wall of the placing cylinder 56, a rotating plate 57 is threadedly installed on the inner wall of the placing cylinder 56, and a linkage rod 58 is fixedly installed on the top of the rotating plate 57. The end of the linkage rod 58 away from the placing cylinder 56 is rotatably connected to the bottom of the adjusting block 53, and the rotating plate 57 is in contact with the rotating groove. A No. 4 spring is arranged between the scale rod 51 and the placing plate 2, and the button 55 is electrically connected to the alarm 54. The linkage rod 58 moves slowly to drive the adjusting block 53 to move slowly, so as to achieve the effect of accurately adjusting the warning water level line. By accurately adjusting the warning water level line, the accuracy of the flood control system can be improved, which helps to avoid false alarms or missed alarms and improve the accuracy of predictions and early warnings.

[0038] The protection device includes a fixed rod 61, a hollow rod 62, a fixed plate 63, a protective ring 64, a detection rod 65 and a protective frame 66. The detection rod 65 moves downward to drive the protective ring 64 to move downward. The protective ring 64 moves downward and contacts the protective frame 66 to form a limit. The fixed rod 61 is fixedly installed on the surface of the detection tube 1, the hollow rod 62 is slidably installed on the surface of the fixed rod 61, the fixed plate 63 is fixedly installed on the surface of the hollow rod 62, the protective ring 64 is slidably installed on the surface of the detection tube 1, the detection rod 65 is fixedly installed on the bottom of the protective ring 64, and the protective frame 66 is fixedly installed on the surface of the hollow rod 62. When subjected to external force impact, the stable connection can reduce or prevent the alarm 54 from falling off or shifting due to impact, ensuring that the equipment can maintain normal working condition when facing external impact.

[0039] A hollow hole is provided on the surface of the hollow rod 62, a No. 5 spring is provided between the fixing rod 61 and the hollow rod 62, and a No. 6 spring is provided between the protective ring 64 and the detection tube 1. The No. 5 spring can drive the hollow rod 62 to reset, and the No. 6 spring can drive the protective ring 64 to reset.

[0040] When the present embodiment is working, the movement of the slider drives the rotating block 41 to rotate, the rotation of the rotating block 41 drives the scale rod 51 to rotate, the rotation of the scale rod 51 drives the scale ring 52 to rotate, the rotation of the scale ring 52 releases the limit on the adjusting block 53, after the limit of the adjusting block 53 and the scale ring 52 is released, the adjusting block 53 can be manually adjusted to change the height of the warning water level line, and at the same time, when the adjusting block 53 is manually adjusted, the movement of the adjusting block 53 drives the linkage rod 58 to move, the movement of the linkage rod 58 drives the rotating plate 57 to move, the rotating plate 57 moves and is squeezed by the rotating groove and starts to rotate, and the rotating plate 57 starts to move slowly while rotating, the rotating plate 57 moves slowly and drives the linkage rod 58 to move slowly, the linkage rod 58 moves slowly and drives the adjusting block 53 to move slowly, so as to achieve the effect of accurately adjusting the warning water level line.

[0041] If the detection tube 1 is subjected to a strong impact underwater, the detection tube 1 is impacted and moves to squeeze the fixed rod 61 to retract. The retraction of the fixed rod 61 drives the detection tube 1 and the protective ring 64 to move toward the fixed plate 63. The protective ring 64 moves toward the fixed plate 63 and drives the detection rod 65 to move. The detection rod 65 moves and contacts the hollow hole and moves downward under the elastic force of the No. 6 spring. The detection rod 65 moves downward and drives the protective ring 64 to move downward. The protective ring 64 moves downward and contacts the protective frame 66 to form a limit.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flood control alarm device for a water conservancy project, comprising a detection tube (1), characterized in that: It also comprises a detection device, a limit device, an adjustment device and a protection device. A placement plate (2) is fixedly mounted on the top of the detection cylinder (1), and a scale rod (51) is rotatably mounted on the surface of the placement plate (2); The detection device comprises a sliding rod (31), a floating block (32), a connecting rod (33), a filter plate (34), a rotating rod (35), a stirring rod (36), a gear (37) and a spring (38), wherein the sliding rod (31) is slidably mounted on the inner wall of the detection tube (1), the floating block (32) is fixedly mounted on the bottom of the sliding rod (31), the connecting rod (33) is fixedly mounted on the bottom of the floating block (32), a rack is fixedly mounted on the bottom of the connecting rod (33), the filter plate (34) is fixedly mounted on the inner wall of the detection tube (1), the rotating rod (35) is rotatably mounted on the inner wall of the detection tube (1), the stirring rod (36) is fixedly mounted on the surface of the rotating rod (35), the gear (37) is fixedly mounted on the surface of the rotating rod (35), a filtering hole is opened on the surface of the filtering plate (34), and the spring (38) is fixedly mounted on the inner wall of the filtering hole; The gear (37) is meshed with the rack, the spring sheet (38) is in contact with the rack, and a stirring hole is formed on the surface of the stirring rod (36); The protective device comprises a fixing rod (61), a hollow rod (62), a fixing plate (63), a protective ring (64), a detection rod (65) and a protective frame (66); the fixing rod (61) is fixedly mounted on the surface of the detection tube (1); the hollow rod (62) is slidably mounted on the surface of the fixing rod (61); the fixing plate (63) is fixedly mounted on the surface of the hollow rod (62); the protective ring (64) is slidably mounted on the surface of the detection tube (1); the detection rod (65) is fixedly mounted on the bottom of the protective ring (64); and the protective frame (66) is fixedly mounted on the surface of the hollow rod (62); A hollow hole is provided on the surface of the hollow rod (62), a No. 5 spring is provided between the fixing rod (61) and the hollow rod (62), and a No. 6 spring is provided between the protection ring (64) and the detection cylinder (1).

2. A flood control alarm device for water conservancy projects according to claim 1, characterized in that: The limiting device comprises a rotating block (41), a short rod (42), a long rod (43), a round rod (44), a rectangular rod (45), a rubber block (46) and a limiting rod (47); the rotating block (41) is fixedly mounted on the surface of the scale rod (51); a slider is slidably mounted on the surface of the rotating block (41); the short rod (42) is hingedly mounted on the surface of the slider; the long rod (43) is hingedly mounted on the surface of the short rod (42); the round rod (44) is fixedly mounted on the surface of the long rod (43); the rectangular rod (45) is fixedly mounted on the surface of the round rod (44); the rubber block (46) is rotatably mounted on the top of the placement plate (2); and the limiting rod (47) is fixedly mounted on the top of the placement plate (2).

3. A flood control alarm device for water conservancy projects according to claim 2, characterized in that: A hollow frame (48) is fixedly mounted on the surface of the rotating block (41), a limit rod (49) is slidably mounted on the inner wall of the hollow frame (48), a No. 1 spring is arranged between the hollow frame (48) and the limit rod (49), a non-Newtonian fluid is arranged inside the rubber block (46), a No. 2 spring is arranged between the slider and the rotating block (41), and a No. 3 spring is arranged between the short rod (42) and the long rod (43).

4. A flood control alarm device for water conservancy projects according to claim 3, characterized in that: The adjustment device comprises a scale ring (52), an adjustment block (53), an alarm (54) and a button (55); the scale ring (52) is fixedly mounted on the surface of the scale rod (51); a slide groove is provided on the surface of the detection cylinder (1); the adjustment block (53) is slidably mounted on the inner wall of the slide groove; the alarm (54) is fixedly mounted on the surface of the adjustment block (53); and the button (55) is fixedly mounted on the bottom of the alarm (54).

5. A flood control alarm device for water conservancy projects according to claim 4, characterized in that: A placement tube (56) is fixedly mounted on the bottom of the inner wall of the slide groove, a rotating groove is formed on the inner wall of the placement tube (56), a rotating plate (57) is threadedly mounted on the inner wall of the placement tube (56), a linkage rod (58) is fixedly mounted on the top of the rotating plate (57), one end of the linkage rod (58) away from the placement tube (56) is rotatably connected to the bottom of the adjustment block (53), the rotating plate (57) is in contact with the rotating groove, a No. 4 spring is arranged between the scale rod (51) and the placement plate (2), and the button (55) is electrically connected to the alarm (54).

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