Riverbank pit rescue device and method

Abstract

The present invention relates to the field of river bank emergency protection technology, and in particular to a river bank pit rescue device and method, wherein a support frame is installed in a pit on the river bank to prevent the inner wall of the pit from continuing to collapse, and a rescue mechanism is used to fill the pit, and the rescue mechanism is arranged on the outside of the river bank; the rescue mechanism includes a base arranged on the side of the river bank away from the riverbed, a lifting assembly arranged on the base, a transverse movement assembly arranged on the lifting assembly, a cement feeding assembly arranged on the base, and a cement quick-setting agent dilution feeding assembly arranged on the base, and the transverse movement assembly adopts an electric linear slide, and the electric linear slide drives the buffer tank to move the position. The beneficial effect is that the present invention first supports the pit through the support frame, and then transports the cement and quick-setting agent into the pit to form a repairing effect, thereby improving the efficiency of pit rescue, and the solidified cement has a strong firmness, thereby effectively avoiding the situation where the pit collapses again.

Description

Technical Field

[0001] The invention relates to the technical field of riverbank rescue, and in particular to a riverbank pit rescue device and method. Background Art

[0002] A pit is also called a sinkhole. It is a dangerous situation caused by the sudden collapse of a part of the river bank before or after a heavy rain. It may occur at the top, slope, platform and foot of the bank. The causes of the pit can be divided into the following: there are animal caves such as badgers, foxes, rats, ants, etc. in the bank body and bank foundation, man-made caves such as graves, cellars, air-raid shelters, tree pits that are not filled properly, and hollows formed by the decay of wood and branches used for rescue in the past. When soaked by heavy water or rain, the soil around the hidden dangers becomes soft and collapses to form a pit; the bank body and bank foundation are partially loose, and the joints between the two are not tight. If not handled properly, soil blocks are suspended, water ditches are not solidly returned, and the pipes in the embankment are broken or the soil-rock joints are leaking, etc., which are soaked in heavy water or rain and form pits, also known as sinkholes; due to the failure to discover and deal with dangerous conditions such as dike seepage, pipe gushing, and leaks, the soil in the embankment or foundation is partially washed away by the water flow and suspended, and finally it can no longer support itself and collapses to form pits, also known as sinkholes. This dangerous condition not only destroys the integrity of the embankment, but also often shortens the seepage path, and is sometimes accompanied by seepage, pipe gushing or leaks. In severe cases, there is a risk of sudden embankment failure.

[0003] The traditional rescue method is to first turn out the loose soil in the pit, then fill and compact it layer by layer until the pit is filled and restored to its original state. This method has the disadvantages of large workload and low efficiency, and the filled soil is not solid, so there is a risk of collapse again.

[0004] Therefore, it is necessary to invent a riverbank pit rescue device and method. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides a river embankment pit rescue device and method, which first supports the pit through a supporting frame, and then transports cement and a quick-setting agent into the pit to form a repair effect, thereby improving the efficiency of pit rescue. In addition, the set cement has strong firmness, thereby effectively preventing the pit from collapsing again.

[0006] The present invention provides a riverbank pit rescue device, the technical solution of which is: a support frame (3) for preventing the inner wall of the pit (2) from further collapsing is installed in a pit (2) on the riverbank (1), and a rescue mechanism for filling the pit (2), the rescue mechanism being arranged on the outside of the riverbank (1);

[0007] The rescue mechanism comprises a base (4) arranged on a side of the river bank (1) away from the riverbed, a lifting assembly arranged on the base (4), a transverse movement assembly arranged on the lifting assembly, a cement feeding assembly arranged on the base (4), and a cement quick-setting agent dilution feeding assembly arranged on the base (4); the transverse movement assembly adopts an electric linear slide (9) to drive a buffer tank (11) for preventing cement splashing to move its position through the electric linear slide (9); the cement feeding assembly is connected to the buffer tank (11) through a feeding hose (19);

[0008] The lifting assembly comprises a hydraulic lifting arm (5), wherein the hydraulic lifting arm (5) is vertically arranged on the upper side of the base (4), a vertical bracket (6) is fixedly mounted on the top of the output shaft of the hydraulic lifting arm (5), a horizontal bracket (7) is fixedly mounted on the top of the vertical bracket (6), a left end of the horizontal bracket (7) extends above the river bank (1), and an inclined bracket (8) is arranged between the vertical bracket (6) and the horizontal bracket (7).

[0009] Preferably, the support frame (3) is made by welding according to the depth and diameter of the pit (2).

[0010] Preferably, the top of the electric linear slide (9) is laterally fixedly mounted on the lower side of the horizontal bracket (7), a suspension rod (10) is mounted on the lower side of the electric linear slide (9), the top of the buffer tank (11) is fixedly mounted on the lower end of the suspension rod (10), a cement feed pipe (12) is arranged on the side wall of the buffer tank (11), and a cement drop pipe (32) is arranged on the bottom of the buffer tank (11).

[0011] Preferably, the cement feeding assembly comprises a cement hopper (13), the bottom of the cement hopper (13) being arranged on the upper surface of the base (1), the top of the cement hopper (13) being fixedly mounted with an arch support (14), a reducer 1 (15) being fixedly mounted at the top center of the arch support (14), the reducer 1 (15) being connected to a motor 1 (16), the output shaft of the motor 1 (16) being fixedly connected to the input shaft of the reducer 1 (15), the output shaft of the reducer 1 (15) vertically passing through the arch support (14), and a stirring paddle (17) being fixedly mounted at the bottom end of the output shaft of the reducer 1 (15), the stirring paddle (17) being located in the cement hopper (13).

[0012] Preferably, the bottom pipe on the side of the cement hopper (13) is connected to a cement delivery pump (18), the cement delivery pump (18) is arranged on the top of the base (1), and a delivery hose (19) for delivering cement is fixedly installed at the output end of the cement delivery pump (18), and the end of the delivery hose (19) away from the cement delivery pump (18) is fixedly connected to the cement feed pipe (12).

[0013] Preferably, the cement quick-setting agent dilution and feeding assembly comprises a dilution tank (20) storing the cement quick-setting agent, the dilution tank (20) being arranged on the upper surface of the base (1), a water inlet pipe (21) being arranged at the top end of the side of the dilution tank (20), a second reducer (22) being fixedly mounted on the top of the dilution tank (20), the second reducer (22) being connected to the second motor (23), the output shaft of the second motor (23) being fixedly connected to the input shaft of the second reducer (22), the output shaft of the second reducer (22) vertically passing through the top of the dilution tank (20), and a stirring rod (24) being fixedly connected to the bottom end of the output shaft of the second reducer (22), the stirring rod (24) being located in the dilution tank (20), a feeding pipe (25) being vertically arranged at the bottom end of the dilution tank (20), and a stop valve (26) being arranged on the pipe body of the feeding pipe (25).

[0014] Preferably, a water pump (27) is installed on the base (1), the feed pipe (25) is connected to the input end of the water pump (27), and the output end of the water pump (27) is connected to a second feed hose (28) for conveying cement quick-setting agent.

[0015] Preferably, a mounting frame (29) is provided at the bottom end of the side of the buffer tank (11), a connecting pipe (30) is fixedly mounted on the mounting frame (29), one end of the second feed hose (28) away from the water pump (27) is fixedly connected to the top of the connecting pipe (30), and a bamboo-jointed plastic hose (31) is fixedly connected to the bottom end of the connecting pipe (30), and the bottom end of the bamboo-jointed plastic hose (31) is located beside the cement drop pipe (32).

[0016] The method for using the riverbank pit rescue device mentioned in the present invention comprises the following steps:

[0017] S1: The rescue personnel first weld a support frame (3) according to the diameter and depth of the pit (2), and insert the support frame (3) into the pit (2) to support the inside of the pit (2) and prevent the inner wall of the pit (2) from further collapsing;

[0018] S2: The rescue personnel add cement and water to the cement hopper (13), and start the motor 1 (16), so that the motor 1 (16) drives the stirring paddle (17) to rotate and stir in the cement hopper (13), thereby preparing the required cement; and add liquid cement accelerating agent and water to the dilution tank (20), and start the motor 2 (23), so that the motor 2 (23) drives the stirring rod (24) to rotate and stir in the dilution tank (20), thereby preparing the required cement accelerating agent;

[0019] S3: During the process of preparing the required cement and cement accelerating agent in S2, the rescue personnel start the hydraulic lifting arm (5) and the electric linear slide (9), and control the buffer tank (11) to move to the top of the pit (2) through the electric linear slide (9), and adjust it to a suitable height;

[0020] S4: The rescue personnel start the cement delivery pump (18) to pump the cement prepared in the cement hopper (13) into the buffer tank (11) through the delivery hose 1 (19) and the cement feed pipe (12). The cement in the buffer tank (11) falls into the pit (2) through the cement drop pipe (32) under the action of gravity.

[0021] S5: The rescue personnel restart the water pump (27) to pump the cement quick-setting agent prepared in the dilution tank (20) into the bamboo-jointed plastic hose (31) through the second feeding hose (28) and the connecting pipe (30), so that the cement quick-setting agent is sprayed out through the bamboo-jointed plastic hose (31), so that the cement is sprayed with the cement quick-setting agent during the falling process, so that the cement falling into the pit (2) can be quickly solidified in the pit (2), until the pit (2) is filled and repaired.

[0022] The beneficial effects of the present invention are as follows: through the coordinated use of the support frame and the rescue mechanism, the support frame can be used to support the pit first, and then cement and a quick-setting agent can be transported to the pit, so that they can be quickly set together to form a filling and repairing effect for the pit. There is no need for manual pit filling, which effectively reduces the workload and improves the rescue efficiency of the pit. Moreover, the set cement has strong firmness, which effectively avoids collapse again, avoids danger to the river embankment, and extends the service life of the river embankment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in FIG.

[0026] Figure 4 It is a structural schematic diagram of the buffer tank of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the dilution tank of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the stirring paddle of the present invention;

[0029] Figure 7It is a structural schematic diagram of the support frame of the present invention;

[0030] Figure 8 It is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0031] In the figure: 1. river bank; 2. pit; 3. support frame; 4. base; 5. hydraulic lifting arm; 6. vertical bracket; 7. horizontal bracket; 8. tilt bracket; 9. electric linear slide; 10. buffer tank; 11. buffer tank; 12. cement feed pipe; 13. cement hopper; 14. arch bracket; 15. reducer 1; 16. motor 1; 17. stirring paddle; 18. cement delivery pump; 19. feed hose 1; 20. dilution tank; 21. water inlet pipe; 22. reducer 2; 23. motor 2; 24. stirring rod; 25. feed pipe; 26. stop valve; 27. water pump; 28. feed hose 2; 29. ​​mounting frame; 30. connecting pipe; 31. bamboo plastic hose; 32. cement drop pipe; 11.1. rotating extension pipe. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] Example 1, reference Figure 1-Figure 7 The present invention provides a river bank pit rescue device. After a pit 2 appears on the upper part of the river bank 1, first, a support frame 3 for preventing the inner wall of the pit 2 from continuing to collapse and a rescue mechanism for filling the pit 2 are placed in the pit 2. The support frame 3 is arranged inside the pit 2, and the rescue mechanism is arranged on the side of the river bank 1 away from the riverbed. The rescue mechanism includes a base 4 arranged on the side of the river bank 1 away from the riverbed, a lifting component arranged on the base 4, a transverse movement component arranged on the lifting component, a cement feeding component arranged on the base 4, and a cement quick-setting agent dilution feeding component arranged on the base 4. A buffer tank 11 for preventing cement splashing is arranged on the transverse movement component, and the cement feeding component is connected to the buffer tank 11 through a pipeline;

[0034] Reference Figure 7 The support frame 3 mentioned in the present invention is sized according to the depth and diameter of the pit 2. Therefore, when rescue workers find the pit 2, they can first measure the depth and diameter of the pit 2, and then weld the support frame 3 suitable for being placed in the pit 2 according to the size, and put the welded support frame 3 into the pit 2 to support the pit 2 and prevent the inner wall of the pit 2 from continuing to collapse. It should be noted that in the present invention, the support frame 3 can be formed by metal welding, and the internal staggered connection, and then filling with cement can achieve a better filling and fixing effect.

[0035] The lifting assembly includes a hydraulic lifting arm 5, which is vertically arranged on the upper side of the base 4. A vertical bracket 6 is fixedly installed on the top of the output shaft of the hydraulic lifting arm 5, and a horizontal bracket 7 is fixedly installed on the top of the vertical bracket 6. The left end of the horizontal bracket 7 extends above the river bank 1. Therefore, when the hydraulic lifting arm 5 works, the horizontal bracket 7 can be driven by the vertical bracket 6 to perform lifting and lowering movements, so that the buffer tank 11 can be controlled to move up and down, thereby controlling the height of the buffer tank 11 from the pit 2, that is, it is convenient for rescue personnel to control the buffer tank 11 to adjust to a suitable height above the pit 2. An inclined bracket 8 is arranged between the vertical bracket 6 and the horizontal bracket 7, which can be used to increase the stability of the horizontal bracket 7, thereby improving the overall stability of the device and ensuring the safe operation of the device;

[0036] The transverse movement assembly includes an electric linear slide 9, the top of which is laterally mounted on the lower side of the horizontal bracket 7, a suspension rod 10 is mounted on the lower part of the electric linear slide 9, and the top of the buffer tank 11 is fixedly mounted on the bottom end of the suspension rod 10, so when the electric linear slide 9 is working, the suspension rod 10 can drive the buffer tank 11 to move back and forth left and right, so that the buffer tank 11 can be controlled to move to the top of the pit 2, a cement feeding pipe 12 is arranged on the top end of the side of the buffer tank 11, and a cement drop pipe 32 is arranged on the bottom end of the buffer tank 11, so that the cement entering the buffer tank 11 can fall into the pit 2 through the cement drop pipe 32 under the action of gravity;

[0037] The cement feeding assembly includes a cement hopper 13, the bottom of which is arranged on the upper side of the base 1, and the rescue personnel add cement and water into the cement hopper 13. An arch bracket 14 is fixedly installed on the top of the cement hopper 13, and a reducer 15 is fixedly installed at the top center of the arch bracket 14. A motor 16 is fixedly installed on the top of the reducer 15, and the output shaft of the motor 16 is fixedly connected to the input shaft of the reducer 15. The output shaft of the reducer 15 vertically passes through the arch bracket 14, and a stirring paddle 17 is fixedly installed at the bottom of the output shaft of the reducer 15. The stirring paddle 17 is located in the cement hopper 13, so under the deceleration effect of the reducer 15, when the motor 16 does work, it can drive the stirring paddle 17 to rotate inside the cement hopper 13, so that the cement added to the cement hopper 1 3 is mixed with water to prepare the required cement. The bottom pipe of the side of the cement hopper 13 is connected to a cement delivery pump 18. The cement delivery pump 18 is arranged on the top of the base 1. A delivery hose 19 for delivering cement is fixedly installed at the output end of the cement delivery pump 18. The end of the delivery hose 19 away from the cement delivery pump 18 is fixedly connected to the cement feed pipe 12. Therefore, the rescue personnel can start the cement delivery pump 18 to pump the cement prepared in the cement hopper 13 into the buffer tank 11 through the delivery hose 19 and the cement feed pipe 12. Under the action of the buffer tank 11, the impact of the cement can be effectively buffered, thereby effectively preventing cement splashing. Then, the cement entering the buffer tank 11 falls into the pit 2 through the cement drop pipe 32 under the action of gravity;

[0038] The cement accelerator dilution and feeding assembly includes a dilution tank 20 storing cement accelerator, the dilution tank 20 is arranged on the upper side of the base 1, and a water inlet pipe 21 is arranged on the side wall of the dilution tank 20, so that the rescue personnel can add liquid cement accelerator and water to the dilution tank 20 through the water inlet pipe 21, and a reducer 22 is fixedly installed at the center of the top of the dilution tank 20, and a motor 23 is fixedly installed on the top of the reducer 22, and the output shaft of the motor 23 is fixedly connected to the input shaft of the reducer 22, and the output shaft of the reducer 22 vertically passes through the top of the dilution tank 20, and the output shaft of the reducer 22 The bottom end is fixedly connected with a stirring rod 24, and the stirring rod 24 is located in the dilution tank 20. Therefore, under the deceleration effect of the reducer 22, when the motor 23 works, the stirring rod 24 can be driven to rotate in the dilution tank 20, so that the cement accelerator and water added to the dilution tank 20 can be stirred and mixed to prepare the cement accelerator of the required concentration. A feed pipe 25 is vertically arranged at the bottom end of the dilution tank 20, and a stop valve 26 is arranged on the body of the feed pipe 25. A water pump 27 is arranged on the top of the base 1. The feed pipe 25 is fixedly connected to the input end of the water pump 27, and the output end of the water pump 27 is fixedly installed. A feeding hose 28 for conveying cement accelerator is installed, so when the water pump 27 is working, the cement accelerator of the required concentration prepared in the dilution tank 20 can be drawn out through the discharge pipe 25 and conveyed through the feeding hose 28. A mounting frame 29 is provided at the bottom end of the side of the buffer tank 11, and a connecting pipe 30 is fixedly installed on the mounting frame 29. The end of the feeding hose 28 away from the water pump 27 is fixedly connected to the top of the connecting pipe 30, and the bottom end of the connecting pipe 30 is fixedly connected to a bamboo-shaped plastic hose 31. The bottom end of the bamboo-shaped plastic hose 31 is located next to the cement discharge pipe 32, so the rescue personnel The water pump 27 can be restarted to pump the cement quick-setting agent prepared in the dilution tank 20 into the bamboo-jointed plastic hose 31 through the feed hose 28 and the connecting pipe 30. The cement quick-setting agent can be sprayed out through the bamboo-jointed plastic hose 31, so that the cement can be sprayed with the cement quick-setting agent during the falling process, so that the cement falling into the pit 2 can quickly solidify in the pit 2, thereby filling and repairing the pit 2. There is no need for manual filling of the pit, which effectively reduces the workload and improves the efficiency of pit rescue. In addition, the solidified cement has strong firmness, thereby effectively avoiding collapse again.

[0039] The method for using the riverbank pit rescue device mentioned in the present invention specifically comprises the following steps:

[0040] S1: The rescue personnel first weld a support frame (3) according to the diameter and depth of the pit (2), and insert the support frame (3) into the pit (2) to support the inside of the pit (2) and prevent the inner wall of the pit (2) from further collapsing;

[0041] S2: The rescue personnel add cement and water to the cement hopper (13), and start the motor 1 (16), so that the motor 1 (16) drives the stirring paddle (17) to rotate and stir in the cement hopper (13), thereby preparing the required cement; and add liquid cement accelerating agent and water to the dilution tank (20), and start the motor 2 (23), so that the motor 2 (23) drives the stirring rod (24) to rotate and stir in the dilution tank (20), thereby preparing the required cement accelerating agent;

[0042] S3: During the process of preparing the required cement and cement accelerating agent in S2, the rescue personnel start the hydraulic lifting arm (5) and the electric linear slide (9), and control the buffer tank (11) to move to the top of the pit (2) through the electric linear slide (9), and adjust it to a suitable height;

[0043] S4: The rescue personnel start the cement delivery pump (18) to pump the cement prepared in the cement hopper (13) into the buffer tank (11) through the delivery hose 1 (19) and the cement feed pipe (12). The cement in the buffer tank (11) falls into the pit (2) through the cement drop pipe (32) under the action of gravity.

[0044] S5: The rescue personnel restart the water pump (27) to pump the cement quick-setting agent prepared in the dilution tank (20) into the bamboo-jointed plastic hose (31) through the second feeding hose (28) and the connecting pipe (30), so that the cement quick-setting agent is sprayed out through the bamboo-jointed plastic hose (31), so that the cement is sprayed with the cement quick-setting agent during the falling process, so that the cement falling into the pit (2) can be quickly solidified in the pit (2), until the pit (2) is filled and repaired.

[0045] Example 2, reference Figure 8 The present invention provides a river bank pit rescue device. After a pit 2 appears on the inner side of the upper part of the river bank 1, first, a support frame 3 for preventing the inner wall of the pit 2 from continuing to collapse and a rescue mechanism for filling the pit 2 are placed in the pit 2. The support frame 3 is arranged inside the pit 2, and the rescue mechanism is arranged on the side of the river bank 1 away from the riverbed. The rescue mechanism includes a base 4 arranged on the side of the river bank 1 away from the riverbed, a lifting component arranged on the base 4, a transverse movement component arranged on the lifting component, a cement feeding component arranged on the base 4, and a cement quick-setting agent dilution feeding component arranged on the base 4. A buffer tank 11 for preventing cement splashing is arranged on the transverse movement component, and the cement feeding component is connected to the buffer tank 11 through a pipeline;

[0046] Differences from Example 1:

[0047] First, a welded support frame (3) is placed in the pit 2 on the inner side of the river bank, and then a rotating extension pipe (11.1) is installed below the cement drop pipe (32) at the lower end of the buffer tank 11. The rotating extension pipe (11.1) extends into the pit 2 on the inner side of the river bank, and a screw conveyor can also be used to convey the mixed cement; in addition, a bamboo-shaped plastic hose (31) is also extended into the pit 2 on the inner side of the river bank to complete the emergency rescue work of filling the pit 2 on the inner side of the river bank.

[0048] The above is only a preferred embodiment of the present invention. Any person skilled in the art can modify the present invention by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A method for using a riverbank pit rescue device, characterized in that: A support frame (3) is installed in the pit (2) on the river bank (1) to prevent the inner wall of the pit (2) from further collapsing, and a rescue mechanism is installed for filling the pit (2), wherein the rescue mechanism is arranged on the outer side of the river bank (1); The rescue mechanism comprises a base (4) arranged on a side of the river bank (1) away from the riverbed, a lifting assembly arranged on the base (4), a transverse movement assembly arranged on the lifting assembly, a cement feeding assembly arranged on the base (4), and a cement quick-setting agent dilution feeding assembly arranged on the base (4); the transverse movement assembly adopts an electric linear slide (9) to drive a buffer tank (11) for preventing cement splashing to move its position through the electric linear slide (9); the cement feeding assembly is connected to the buffer tank (11) through a feeding hose (19); The lifting assembly comprises a hydraulic lifting arm (5), the hydraulic lifting arm (5) being vertically arranged on the upper side of the base (4), a vertical bracket (6) being fixedly mounted on the top of the output shaft of the hydraulic lifting arm (5), a horizontal bracket (7) being fixedly mounted on the top of the vertical bracket (6), the left end of the horizontal bracket (7) extending above the river bank (1), and an inclined bracket (8) being arranged between the vertical bracket (6) and the horizontal bracket (7); The cement feeding assembly comprises a cement hopper (13), the bottom of the cement hopper (13) is arranged on the upper surface of the base (4), the top of the cement hopper (13) is fixedly mounted with an arch bracket (14), a reducer 1 (15) is fixedly mounted at the center of the top of the arch bracket (14), the reducer 1 (15) is connected to a motor 1 (16), the output shaft of the motor 1 (16) is fixedly connected to the input shaft of the reducer 1 (15), the output shaft of the reducer 1 (15) vertically passes through the arch bracket (14), and a stirring paddle (17) is fixedly mounted at the bottom end of the output shaft of the reducer 1 (15), and the stirring paddle (17) is located in the cement hopper (13); The bottom pipeline of the side of the cement hopper (13) is connected to a cement delivery pump (18), the cement delivery pump (18) is arranged on the top of the base (4), and a delivery hose (19) for delivering cement is fixedly installed at the output end of the cement delivery pump (18), and the end of the delivery hose (19) away from the cement delivery pump (18) is fixedly connected to the cement feed pipe (12); The cement quick-setting agent dilution and feeding assembly comprises a dilution tank (20) storing cement quick-setting agent, the dilution tank (20) being arranged on the upper surface of the base (4), a water inlet pipe (21) being arranged at the top end of the side of the dilution tank (20), a second reducer (22) being fixedly installed at the top of the dilution tank (20), the second reducer (22) being connected to the second motor (23), the output shaft of the second motor (23) being fixedly connected to the input shaft of the second reducer (22), the output shaft of the second reducer (22) vertically passing through the top of the dilution tank (20), and a stirring rod (24) being fixedly connected to the bottom end of the output shaft of the second reducer (22), the stirring rod (24) being located in the dilution tank (20), a feeding pipe (25) being vertically arranged at the bottom end of the dilution tank (20), and a stop valve (26) being arranged on the pipe body of the feeding pipe (25); A water pump (27) is installed on the base (4), the feed pipe (25) is connected to the input end of the water pump (27), and the output end of the water pump (27) is connected to a second feed hose (28) for conveying cement quick-setting agent; A mounting frame (29) is provided at the bottom end of the side of the buffer tank (11), a connecting pipe (30) is fixedly mounted on the mounting frame (29), one end of the second material delivery hose (28) away from the water pump (27) is fixedly connected to the top of the connecting pipe (30), a bamboo-jointed plastic hose (31) is fixedly connected to the bottom end of the connecting pipe (30), and the bottom end of the bamboo-jointed plastic hose (31) is located beside the cement drop pipe (32); The support frame (3) is welded according to the depth and diameter of the pit (2); The top of the electric linear slide (9) is laterally fixedly mounted on the lower side of the horizontal bracket (7); a suspension rod (10) is mounted on the lower side of the electric linear slide (9); the top of the buffer tank (11) is fixedly mounted on the lower end of the suspension rod (10); a cement feed pipe (12) is disposed on the side wall of the buffer tank (11); and a cement drop pipe (32) is disposed at the bottom of the buffer tank (11); The method for using the riverbank pit rescue device comprises the following steps: S1: The rescue personnel first weld a support frame (3) according to the diameter and depth of the pit (2), and insert the support frame (3) into the pit (2) to support the inside of the pit (2) and prevent the inner wall of the pit (2) from further collapsing; S2: The rescue personnel add cement and water to the cement hopper (13), and start the motor 1 (16), so that the motor 1 (16) drives the stirring paddle (17) to rotate and stir in the cement hopper (13), thereby preparing the required cement; and add liquid cement accelerating agent and water to the dilution tank (20), and start the motor 2 (23), so that the motor 2 (23) drives the stirring rod (24) to rotate and stir in the dilution tank (20), thereby preparing the required cement accelerating agent; S3: During the process of preparing the required cement and cement accelerating agent in S2, the rescue personnel start the hydraulic lifting arm (5) and the electric linear slide (9), and control the buffer tank (11) to move to the top of the pit (2) through the electric linear slide (9), and adjust it to a suitable height; S4: The rescue personnel start the cement delivery pump (18) to pump the cement prepared in the cement hopper (13) into the buffer tank (11) through the delivery hose 1 (19) and the cement feed pipe (12). The cement in the buffer tank (11) falls into the pit (2) through the cement drop pipe (32) under the action of gravity. S5: The rescue personnel restart the water pump (27) to pump the cement quick-setting agent prepared in the dilution tank (20) into the bamboo-jointed plastic hose (31) through the second feeding hose (28) and the connecting pipe (30), so that the cement quick-setting agent is sprayed out through the bamboo-jointed plastic hose (31), so that the cement is sprayed with the cement quick-setting agent during the falling process, so that the cement falling into the pit (2) can be quickly solidified in the pit (2), until the pit (2) is filled and repaired.

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