A spiral centrifugal pump for river dredging

Abstract

The application discloses a spiral centrifugal pump for river dredging, and belongs to the technical field of centrifugal pumps, which comprises two first floating buoys and two second floating buoys which are arranged in parallel, a motor telescopic rod is rotatably arranged between the first floating buoys and the second floating buoys, a plurality of connecting rods are rotatably connected to the top of the first floating buoys and the second floating buoys, and a bearing plate is rotatably arranged between the connecting rods and above the first floating buoys and the second floating buoys. The first motor and the pump body are arranged between the first floating buoys and the second floating buoys, and the first floating buoys and the second floating buoys float on the water surface by the buoyancy. Since the first floating buoys and the second floating buoys are small in size, the spiral centrifugal pump can be applied to the dredging work of narrow and small rivers. The motor telescopic rod can pull the first floating buoys and the second floating buoys to be close to each other, the occupied area is further reduced, and the spiral centrifugal pump can pass through narrow and small rivers.

Description

Technical Field

[0001] This invention relates to a centrifugal pump, and more particularly to a spiral centrifugal pump for river dredging, belonging to the field of centrifugal pump technology. Background Technology

[0002] River dredging generally refers to the management of river channels, a type of water conservancy project. It involves using mechanical equipment to agitate the silt deposited at the bottom of the river, turning it into turbid water that flows away with the current, thus clearing blockages. Current dredging methods use dredging vessels equipped with centrifugal pumps to suck up the silt from the riverbed. However, this method has the following drawbacks: existing dredging vessels are large and inconvenient for narrow channels. Although pontoons are used to carry centrifugal pumps for cleaning narrow channels, the distance between the pontoons is not adjustable, resulting in a fixed and unadjustable depth to which the centrifugal pump penetrates the river, leading to incomplete cleaning. Furthermore, unstable installation of the centrifugal pumps can hinder dredging operations. While existing centrifugal pumps directly suck up silt, many large pieces of silt at the riverbed can cause blockages, hindering the cleaning process and resulting in poor dredging effectiveness.

[0003] This invention proposes a new solution to the above problems. Summary of the Invention

[0004] The main objective of this invention is to solve the problems of existing technologies being inconvenient for dredging in narrow river channels and the centrifugal pumps being prone to clogging, and to provide a spiral centrifugal pump for river dredging.

[0005] The objective of this invention can be achieved by adopting the following technical solution:

[0006] A spiral centrifugal pump for river dredging includes two parallel-distributed first and second floats. An electric telescopic rod is rotatably mounted between the first and second floats. Multiple connecting rods are rotatably connected to the top of both the first and second floats. A support plate located above the first and second floats is rotatably mounted between the multiple connecting rods. A first motor is fixedly mounted on the top of the support plate. The first motor is connected to a pump body located below the support plate via a coupling. A shovel is fixedly connected to the bottom of the pump body. A second motor is fixedly mounted on the top of the shovel. A crushing blade located inside the shovel is connected to the outer side of the output shaft of the second motor. A sliding rod is rotatably mounted on the bottom of the support plate. A tension sleeve rotatably mounted on the top of the first and second floats is installed at the bottom end of the sliding rod.

[0007] Preferably, the tops of both the first and second pontoons are fixedly fitted with two first mounting plates that rotatably engage with the connecting rod.

[0008] Preferably, a second mounting plate is provided between the two first mounting plates, which is fixedly mounted on the top of the first pontoon and the second pontoon and rotatably engaged with the tension sleeve.

[0009] Preferably, a third mounting plate, which is rotatably connected to the electric telescopic rod, is symmetrically installed on the outer sides of the first pontoon and the second pontoon.

[0010] Preferably, a connecting rod rotatably connected to the second mounting plate is fixedly installed on the outer side of the tension sleeve, and a spring installed at the bottom end of the slide rod is fixedly connected inside the tension sleeve.

[0011] Preferably, the two ends of the bearing plate are fixedly connected to rotating rods that are rotatably connected to the connecting rod, the outer side of the rotating rod is fixedly connected to a baffle located on one side of the connecting rod, the top end of the rotating rod is threadedly connected to a nut located on the other side of the connecting rod, and the bottom of the bearing plate is fixedly installed with a fourth mounting plate that rotatably cooperates with the sliding rod.

[0012] Preferably, a sliding plate is slidably installed between the first pontoon and the second pontoon, and a diesel engine is fixedly installed on the top of the sliding plate.

[0013] Preferably, the tops of the first pontoon and the second pontoon are fixedly installed with sliding tubes that slide in cooperation with the sliding plate.

[0014] Preferably, a protective shell located outside the second motor is fixedly installed on the top of the shovel, and a shovel blade is fixedly installed on the front of the shovel.

[0015] Preferably, one end of the first pontoon and the second pontoon is connected to a cone cap.

[0016] The beneficial technical effects of this invention are as follows: According to the spiral centrifugal pump for river dredging of this invention, by setting up a first float and a second float, the first motor and the pump body are installed between the first float and the second float. The buoyancy of the first and second floats allows them to float on the water surface. Due to the small size of the first and second floats, they are suitable for dredging work in relatively narrow rivers. Simultaneously, the electric telescopic rod allows the first and second floats to be pulled closer together, further reducing the occupied area and enabling passage through narrow rivers. Furthermore, the telescopic movement of the electric telescopic rod can control the movement of the first float... The distance between the first and second floats drives the connecting rod to rotate, which in turn raises and lowers the support plate, thereby controlling the submersion depth of the pump body. This facilitates dredging of rivers at different depths and makes the pump easy to use. The shovel scoops up the silt from the riverbed, and the silt enters the shovel. The second motor drives the crushing blades to break up the silt, making it easier for the pump body to suck it up and preventing blockages. The sliding rod and tension sleeve work together, with the spring inside the tension sleeve always providing tension to the sliding rod. Because the sliding rod and tension sleeve are symmetrically distributed on the first and second floats, the stability of the support plate is increased, ensuring that the support plate will not overturn. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0018] Figure 2 This is a side view of the overall structure according to a preferred embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a first pontoon structure according to a preferred embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of a shovel structure according to a preferred embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of a connecting rod structure according to a preferred embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of a bearing plate structure according to a preferred embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of a slide bar structure according to a preferred embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of a tension sleeve structure according to a preferred embodiment of the present invention.

[0025] In the diagram: 1. First pontoon; 2. Second pontoon; 3. Electric telescopic mast; 4. Connecting rod; 5. Bearing plate; 6. First motor; 7. Pump body; 8. Shovel; 9. Second motor; 10. Crushing blade; 11. Sliding plate; 12. Diesel engine; 13. Sliding rod; 14. Tension sleeve; 801. Protective shell; 802. Shovel blade; 101. First mounting plate; 102. Second mounting plate; 103. Third mounting plate; 104. Sliding tube; 105. Cone cap; 141. Connecting rod; 142. Spring; 501. Rotating rod; 502. Baffle; 503. Nut; 504. Fourth mounting plate. Detailed Implementation

[0026] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0027] like Figures 1-8 As shown, the spiral centrifugal pump for river dredging provided in this embodiment includes two parallel first floats 1 and second floats 2. An electric telescopic rod 3 is rotatably installed between the first floats 1 and the second floats 2. Multiple connecting rods 4 are rotatably connected to the top of both the first floats 1 and the second floats 2. A bearing plate 5 located above the first floats 1 and the second floats 2 is rotatably installed between the multiple connecting rods 4. A first motor 6 is fixedly installed on the top of the bearing plate 5. The first motor 6 is connected to a pump body 7 located below the bearing plate 5 via a coupling. A shovel 8 is fixedly connected to the bottom of the pump body 7. A second motor 9 is fixedly installed on the top of the shovel 8. A crushing blade 10 located inside the shovel 8 is connected to the outer side of the output shaft of the second motor 9. A sliding rod 13 is rotatably installed on the bottom of the bearing plate 5. A tension sleeve 14 rotatably installed on the top of the first floats 1 and the second floats 2 is installed at the bottom end of the sliding rod 13.

[0028] With the arrangement of the first buoy 1 and the second buoy 2, the first motor 6 and the pump body 7 are installed between the first buoy 1 and the second buoy 2. The buoyancy of the first buoy 1 and the second buoy 2 allows them to float on the water surface. Due to their small size, the first buoy 1 and the second buoy 2 are suitable for dredging work in relatively narrow waterways. Simultaneously, the electric telescopic rod 3 allows the first buoy 1 and the second buoy 2 to be pulled closer together, further reducing the area occupied and enabling passage through narrow waterways. Furthermore, the telescopic movement of the electric telescopic rod 3 controls the distance between the first buoy 1 and the second buoy 2, thereby driving the connecting rod 4. Rotation allows the support plate 5 to rise and fall, thereby controlling the submersion depth of the pump body 7, facilitating dredging of river channels at different depths and making it convenient to use; the shovel 8 scoops up the silt from the riverbed, and the silt enters the shovel 8. The second motor 9 drives the crushing blades 10 to break up the silt, making it easier for the pump body 7 to suck it up and preventing blockage; through the cooperation of the slide rod 13 and the tension sleeve 14, the spring 142 inside the tension sleeve 14 always provides a tension to the slide rod 13. Since the slide rod 13 and the tension sleeve 14 are symmetrically distributed on the first float 1 and the second float 2, the stability of the support plate 5 can be increased, ensuring that the support plate 5 will not overturn.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, two first mounting plates 101 that are rotatably engaged with the connecting rod 4 are fixedly installed on the top of the first pontoon 1 and the second pontoon 2. A second mounting plate 102 that is fixedly installed on the top of the first pontoon 1 and the second pontoon 2 and rotatably engaged with the tension sleeve 14 is provided between the two first mounting plates 101. A third mounting plate 103 that is rotatably connected with the electric telescopic rod 3 is symmetrically installed on the outer side of the first pontoon 1 and the second pontoon 2.

[0030] The first mounting plate 101 and the second mounting plate 102 ensure that the connecting rod 4 and the tension sleeve 14 can be rotatably connected to the first float 1 and the second float 2 through the rotating shaft. The third mounting plate 103 is fixed to the electric telescopic rod 3 with bolts, which facilitates installation.

[0031] In this embodiment, as Figure 1 , Figure 3 and Figure 8 As shown, a connecting rod 141 that is rotatably connected to the second mounting plate 102 is fixedly installed on the outer side of the tension sleeve 14, and a spring 142 that is installed at the bottom end of the slide rod 13 is fixedly connected inside the tension sleeve 14.

[0032] With the linkage 141 in place, the tension sleeve 14 is rotatably connected to the second mounting plate 102. Since the slide rod 13 is also rotatably connected to the bearing plate 5, when the slide rod 13 rotates, it can drive the tension sleeve 14 to rotate. One end of the spring 142 is fixedly connected to the inner wall of the tension sleeve 14, and the other end is connected to the lower end of the slide rod 13, so that the bearing plate 5 is stable.

[0033] In this embodiment, as Figure 1 , Figure 6 and Figure 7 As shown, the two ends of the bearing plate 5 are fixedly connected to rotating rods 501 that are rotatably connected to the connecting rod 4. The outer side of the rotating rod 501 is fixedly connected to a baffle 502 located on one side of the connecting rod 4. The top end of the rotating rod 501 is threadedly connected to a nut 503 located on the other side of the connecting rod 4. The bottom of the bearing plate 5 is fixedly installed with a fourth mounting plate 504 that rotatably engages with the slide rod 13.

[0034] By setting up the rotating rod 501, baffle 502, and nut 503, one end of the connecting rod 4 installed on the first float 1 and the second float 2 is locked between the baffle 502 and the nut 503, without interfering with the rotation of the connecting rod 4 on the rotating rod 501. The fourth mounting plate 504 is rotatably connected to the slide rod 13 through a rotating shaft.

[0035] In this embodiment, as Figure 1 and Figure 2 As shown, a sliding plate 11 is slidably installed between the first pontoon 1 and the second pontoon 2. A diesel engine 12 is fixedly installed on the top of the sliding plate 11. A cone cap 105 is connected to one end of the first pontoon 1 and the second pontoon 2. A sliding tube 104 that slides in cooperation with the sliding plate 11 is fixedly installed on the top of the first pontoon 1 and the second pontoon 2.

[0036] The sliding plate 11 facilitates the placement of other materials. The sliding plate 11 slides in conjunction with the sliding tube 104 to avoid interfering with the relative movement of the first pontoon 1 and the second pontoon 2. The diesel engine 12 provides power and propels the pontoon forward. The cone cap 105 reduces the resistance when the first pontoon 1 and the second pontoon 2 move forward.

[0037] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, a protective shell 801 located outside the second motor 9 is fixedly installed on the top of the shovel 8, and a shovel blade 802 is fixedly installed on the front of the shovel 8.

[0038] The protective shell 801 protects the second motor 9, and the blade 802 facilitates the shoveling of silt from the riverbed.

[0039] In this embodiment, as Figures 1-8As shown in the figure, the working process of a spiral centrifugal pump for river dredging provided in this embodiment is as follows:

[0040] Step 1: Place the device into the river channel and control the distance between the first float 1 and the second float 2 by using the electric telescopic rod 3, thereby controlling the diving depth of the pump body 7;

[0041] Step 2: Start the first motor 6 and the second motor 9 to make the pump body 7 and the crusher blade 10 work normally, and start the diesel engine 12 to drive the device forward.

[0042] Step 3: The shovel 802 scoops up the sludge and puts it into the sludge scraper 8. The second motor 9 drives the crushing blade 10 to break up the sludge. The pump body 7 sucks up the sludge and discharges it.

[0043] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A spiral centrifugal pump for river dredging, characterized in that, The system includes two parallel first pontoons (1) and second pontoons (2). An electric telescopic rod (3) is rotatably installed between the first pontoons (1) and the second pontoons (2). Multiple connecting rods (4) are rotatably connected to the top of both the first pontoons (1) and the second pontoons (2). A bearing plate (5) located above the first pontoons (1) and the second pontoons (2) is rotatably installed between the multiple connecting rods (4). A first motor (6) is fixedly installed on the top of the bearing plate (5). The first motor (6) is connected to a pump body (7) located below the bearing plate (5) via a coupling. A shovel (8) is fixedly connected to the bottom of the pump body (7). A second motor (9) is fixedly installed on the top of the shovel (8). A crushing blade (1) located inside the shovel (8) is connected to the outer side of the output shaft of the second motor (9). 0), a sliding rod (13) is rotatably installed at the bottom of the bearing plate (5), and a tension sleeve (14) is rotatably installed at the bottom end of the sliding rod (13) on the top of the first float (1) and the second float (2). Two first mounting plates (101) that rotatably cooperate with the connecting rod (4) are fixedly installed at the top of the first float (1) and the second float (2). Rotating rods (501) that rotatably connect with the connecting rod (4) are fixedly connected at both ends of the bearing plate (5). A baffle (502) located on one side of the connecting rod (4) is fixedly connected to the outside of the rotating rod (501). A nut (503) located on the other side of the connecting rod (4) is threadedly connected to the top end of the rotating rod (501). A fourth mounting plate (504) that rotatably cooperates with the sliding rod (13) is fixedly installed at the bottom of the bearing plate (5).

2. The spiral centrifugal pump for river dredging as described in claim 1, characterized in that, A second mounting plate (102) is provided between the two first mounting plates (101), which is fixedly mounted on the top of the first pontoon (1) and the second pontoon (2) and rotates in cooperation with the tension sleeve (14).

3. A spiral centrifugal pump for river dredging as described in claim 1, characterized in that, The first pontoon (1) and the second pontoon (2) are symmetrically mounted with third mounting plates (103) that are rotatably connected to the electric telescopic rod (3).

4. A spiral centrifugal pump for river dredging as described in claim 2, characterized in that, The outer side of the tension sleeve (14) is fixedly installed with a connecting rod (141) that is rotatably connected to the second mounting plate (102), and the inner side of the tension sleeve (14) is fixedly connected with a spring (142) installed at the bottom end of the slide rod (13).

5. A spiral centrifugal pump for river dredging as described in claim 1, characterized in that, A sliding plate (11) is slidably installed between the first pontoon (1) and the second pontoon (2), and a diesel engine (12) is fixedly installed on the top of the sliding plate (11).

6. A spiral centrifugal pump for river dredging as described in claim 5, characterized in that, The top of the first pontoon (1) and the second pontoon (2) are fixedly installed with sliding tubes (104) that slide in cooperation with the sliding plate (11).

7. A spiral centrifugal pump for river dredging as described in claim 1, characterized in that, The top of the shovel (8) is fixedly fitted with a protective shell (801) located outside the second motor (9), and the front of the shovel (8) is fixedly fitted with a blade (802).

8. A spiral centrifugal pump for river dredging as described in claim 1, characterized in that, One end of the first pontoon (1) and the second pontoon (2) is connected to a cone cap (105).

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