Anti-grounding trigger device for floating type drainage platform

Abstract

The utility model discloses an anti-grounding triggering device for a floating type drainage platform, and belongs to the technical field of floating type drainage platforms. The floating type drainage platform comprises a floating type drainage platform body, and the side edge of the floating type drainage platform body is provided with an anti-grounding triggering device assembly. The anti-grounding triggering device assembly comprises a bottom shell, the middle part of the bottom shell is provided with an axially raised bottom shell neck, the outer ring of the bottom shell neck is sleeved with a grooved wheel, and a volute spiral spring is arranged between the bottom shell neck and the grooved wheel; the grooved wheel is connected with a main rope, one end of the main rope is connected with the grounding device, and a metal ring is arranged along the line of the main rope; and a proximity switch is also inserted into the bottom of the bottom shell. Through the combination of a mechanical structure and the magnetic proximity switch, a water pump circuit can be automatically switched off and drainage can be stopped at the lowest safe water level, a safe distance between the floating type drainage platform and sediment at the bottom of a reservoir is always kept, and the floating type drainage platform has the advantages of simplicity and convenience in manufacturing, mounting and maintenance, low cost, safety and reliability in use and the like.

Description

Technical Field

[0001] This utility model relates to the field of floating drainage platform technology, and more specifically, to a floating drainage platform anti-bottom-touch triggering device. Background Technology

[0002] The open-pit mine, due to continuous downward mining, has formed a concave artificial terrain. Rainwater and groundwater concentrate at the bottom of this concave area. To effectively drain surface water, a reservoir was constructed based on the drainage needs of the mine. Drainage facilities are installed within the reservoir to pump water out in stages. Originally, the drainage system involved placing water pumps in simple steel baskets submerged at the bottom of the reservoir. However, a large amount of silt gradually accumulated around the pumps at the bottom of the reservoir, causing them to collapse during drainage, clogging the pump inlets, jamming the impellers, and damaging the equipment. The continuous upward flow of silt accelerated wear on equipment and pipes, reducing the reservoir's capacity, and requiring the company to invest in dredging several times a year. Subsequent maintenance made retrieval and placement difficult. To address these issues, floating drainage platforms were subsequently built and used, suspending the water pumps on these platforms. However, if the water level is too low during drainage, insufficient lighting at night or inclement weather can prevent timely observation during remote operation, causing the water pump to bottom out and suck in a large amount of mud and sand. This can lead to impeller blockage and pump damage, posing a significant safety hazard to the equipment. In more serious cases, the water in the reservoir may be drained without being detected in time, resulting in prolonged pump operation and damage to the pump, severely impacting safe production. Utility Model Content

[0003] 1. Technical problem to be solved by the utility model

[0004] To address the shortcomings and deficiencies of existing technologies, this invention provides a bottom-touching trigger device for a floating drainage platform. This invention cleverly combines a mechanical structure with a magnetic proximity switch to automatically disconnect the water pump circuit and stop drainage at the lowest safe water level. This ensures that the floating drainage platform always maintains a safe distance from the sediment at the bottom of the reservoir. It offers advantages such as simple manufacturing, installation, and maintenance, low cost, and safe and reliable operation.

[0005] 2. Technical Solution

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] This utility model discloses a floating drainage platform anti-bottom-touch triggering device, which includes a floating drainage platform, a water pump is provided in the middle of the floating drainage platform, and an anti-bottom-touch triggering device assembly is provided on the side of the floating drainage platform.

[0008] The bottom-touch triggering device assembly includes a bottom shell, a bottom shell neck with an axial protrusion in the middle of the bottom shell, a grooved wheel fitted on the outer ring of the bottom shell neck, and a spiral spring installed between the bottom shell neck and the grooved wheel.

[0009] The bottom shell is provided with a first guide wheel and a second guide wheel installed at intervals.

[0010] The grooved wheel is connected to a main rope. One end of the main rope is fixed to the grooved wheel, and the other end of the main rope passes through the first guide wheel and the second guide wheel in sequence and is connected to the bottom-contacting device. A metal ring is provided along the main rope.

[0011] A proximity switch is also installed at the bottom of the base shell, and the output terminal of the proximity switch is electrically connected to the water pump.

[0012] Furthermore, the bottom shell is provided with main fixing feet, and the bottom shell is fixedly installed on the outside of the floating drainage platform by the main fixing feet and bolts.

[0013] Furthermore, the diameter of the grooved wheel is larger than the outer diameter of the bottom shell neck, and the inner hole of the grooved wheel is axially movable and fitted onto the bottom shell neck to form a cavity for installing the spiral spring.

[0014] Furthermore, the spiral spring is helical, with its two ends fixed to the inner surface of the grooved wheel and the outer diameter surface of the neck of the bottom shell, respectively.

[0015] Furthermore, the first guide wheel and the second guide wheel are respectively movably mounted on the bottom shell via rotating shafts and can rotate flexibly.

[0016] Furthermore, the connection between the main rope and the bottoming device is secured by a rope clamp.

[0017] Furthermore, the installation distance between the metal ring and the bottom contact device determines the minimum safe distance between the water pump and the bottom of the water storage tank when the water pump is draining.

[0018] Furthermore, the surface of the bottom shell is provided with a top cover, and fixed feet are provided at intervals along the outer edge of the bottom shell. The top cover is assembled with the bottom shell by means of fixed feet and bolts.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0021] This invention cleverly combines a mechanical structure with a magnetic proximity switch. When the water level is low and the proximity switch senses the metal ring fixed to the main rope, the control circuit forms a closed or open circuit and automatically stops the water pump. At the lowest safe water level, it automatically disconnects the water pump circuit and stops drainage. This ensures that the floating drainage platform maintains a safe distance from the sediment at the bottom of the reservoir at the lowest water level.

[0022] This utility model has a simple working principle and design structure, reliable automatic control performance, can ensure the safety of drainage facilities, reduce the workload of remote operators, and prevent water pumps from bottoming out and sucking in a large amount of mud and sand, causing impeller blockage and equipment damage accidents. It also prevents a large amount of mud and sand deposited at the bottom from being discharged into the downstream pumping station, which would accelerate the wear and tear on equipment and pipelines, reduce the capacity of water storage tanks, and reduce the dredging costs of water storage tanks for enterprises. It has the advantages of simple manufacturing, installation and maintenance, low cost, and safe and reliable use. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of the present invention;

[0024] Figure 2 This is a structural diagram of the anti-bottom-touch triggering device assembly of this utility model.

[0025] In the diagram: 1. Anti-bottom-touch trigger device assembly; 2. Floating drainage platform; 3. Water pump; 4. Bottom of water storage tank; 5. Main fixing foot; 6. Fixing support foot; 7. Top cover; 8. Bottom shell; 9. Spiral spring; 10. Bottom shell neck; 11. Grooved wheel; 12. Main rope; 13. First guide wheel; 14. Second guide wheel; 15. Proximity switch; 16. Metal ring; 17. Fixing rope clip; 18. Bottom-touch device. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Example 1

[0028] from Figure 1-2 As can be seen, the floating drainage platform anti-bottom-touch triggering device of this embodiment includes a floating drainage platform 2, a water pump 3 is provided in the middle of the floating drainage platform 2, and an anti-bottom-touch triggering device assembly 1 is provided on the side of the floating drainage platform 2.

[0029] The anti-bottom-touch triggering device assembly 1 includes a bottom shell 8, with an axially protruding bottom shell neck 10 in the middle of the bottom shell 8. The bottom shell 8 and the bottom shell neck 10 are integral. The shell of the bottom shell 8 is provided with a main fixing foot 5. The bottom shell 8 is fixedly installed on the outside of the floating drainage platform 2 by the main fixing foot 5 and bolts. The surface of the bottom shell 8 is provided with a top cover 7. Fixed support feet 6 are provided at intervals along the outer edge of the bottom shell 8. The top cover 7 is assembled with the bottom shell 8 by the fixed support feet 6 and bolts.

[0030] A grooved wheel 11 is fitted around the outer ring of the bottom shell neck 10. A spiral spring 9 is installed between the bottom shell neck 10 and the grooved wheel 11. The bore diameter of the grooved wheel 11 is larger than the outer diameter of the bottom shell neck 10. The inner bore of the grooved wheel 11 is axially movably fitted onto the bottom shell neck 10 to form a chamber for installing the spiral spring 9. The spiral spring 9 is helical, and its two ends are fixed to the inner bore surface of the grooved wheel 11 and the outer diameter surface of the neck of the bottom shell neck 10, respectively.

[0031] A first guide wheel 13 and a second guide wheel 14 are installed at intervals on the bottom shell 8; the first guide wheel 13 and the second guide wheel 14 are respectively movably mounted on the bottom shell 8 via rotating shafts and can rotate flexibly.

[0032] A main rope 12 is connected to the grooved wheel 11. One end of the main rope 12 is fixed to the grooved wheel 11, and the other end of the main rope 12 passes through the first guide wheel 13 and the second guide wheel 14 in sequence and is connected to the bottom contact device 18. The connection between the main rope 12 and the bottom contact device 18 is fixed by a fixing rope clip 17. A metal ring 16 is provided along the main rope 12. The installation distance between the metal ring 16 and the bottom contact device 18 determines the minimum safe distance between the water pump 3 and the bottom of the water storage tank 4 when the water pump 3 is draining water.

[0033] A proximity switch 15 is also installed at the bottom of the base housing 8; the output terminal of the proximity switch 15 is electrically connected to the water pump 3, and a reserved hole is provided at the bottom of the base housing 8, in which the proximity switch 15 is installed; the reserved wire of the proximity switch 15 can be connected to auxiliary control electrical equipment as needed.

[0034] The main rope 12, metal ring 16, rope clip 17, and bottom contact device 18 are all made of corrosion-resistant materials;

[0035] The mass of the bottom-touching device 18 should be 10%-20% greater than the sum of the buoyancy in the water and the tension of the spiral spring 9, and the bottom area of ​​the bottom-touching device 18 should be increased to ensure that it does not sink into the mud and sand each time it touches the bottom.

[0036] The mass of the main rope 12 is about 90% less than the tension of the spiral spring 9, and the main rope 12 is selected as a rope with small diameter, corrosion resistance, light mass and good flexibility.

[0037] The groove depth and width of the grooved pulley 11 are sufficient to accommodate the main rope after it is fully retracted; the number of release turns of the spiral spring 9 should exceed the length of the main rope by about 1 / 3.

[0038] The installation position of this device must ensure that there are no obstructions after the main rope 12 extends vertically downwards;

[0039] When the water level in the reservoir rises, because the mass of the main rope 12 and the bottom-contact device 18 is greater than the tension of the spiral spring, the groove wheel 11 rotates under the gravity of the main rope 12 and the bottom-contact device 18 to release the main rope 12. After the main rope 12 of a predetermined length is released in the groove wheel 11, the bottom-contact device 18 is lifted away from the bottom 4 of the reservoir by the main rope 12 as the floating drainage platform 1 rises. The process of releasing the main rope 12 is also the reverse rotation compression and energy storage process of the spiral spring 9.

[0040] As the water level in the reservoir continues to drop, the floating drainage platform 1 will also drop along with the water level. When the bottom-touching device 18 suspended on the main rope 12 touches the bottom, the energy released by the spiral spring 9 is greater than the mass of the main rope 12. The spiral spring 9 begins to release energy, driving the groove wheel 11 to rotate and collect the main rope 12 and always maintain a certain tension with the main rope 12.

[0041] When the water level in the reservoir drops to the minimum safe level, the metal ring 16 fixed at the lower end of the main rope 12 will gradually move upward toward the sensing area of ​​the proximity switch 15. After the proximity switch 15 senses the metal, the internal circuit forms a closed circuit or an open circuit and controls the water pump 3 to stop draining.

[0042] Example 2

[0043] from Figure 1-2 As can be seen, in this embodiment of a floating drainage platform anti-bottom-touch triggering device, when the water level in the reservoir continues to rise, the floating drainage platform 2 will also rise with the water level. When the sum of the mass of the main rope 12 and the bottom-touch device 18 is greater than the tension of the spiral spring 9, the main rope 12 drives the groove wheel 11 to rotate and release the main rope 12 until the main rope 12 contained in the groove wheel 11 is completely released.

[0044] After the main rope 12 is released, as the water level rises, the bottom-touching device 18 leaves the bottom 4 of the reservoir under the pull of the main rope 12.

[0045] The process of the bottom contact device 18 leaving the bottom 4 of the reservoir is very important. It can ensure that the bottom contact device 18 lands on the deposited mud and sand every time it touches the bottom, and always maintain the minimum safe drainage distance between the water pump 3 and the bottom 4 of the reservoir. The process of releasing the main rope 12 is also the reverse rotation compression energy storage process of the spiral spring 9.

[0046] As the water level in the reservoir continues to drop, the floating drainage platform 2 also descends with the water level. When the bottom-touching device 18 touches the bottom, the tension of the spiral spring 9 exceeds the mass of the main rope 12, causing the grooved wheel 11 to begin rotating and simultaneously retracting the main rope 12. This process is also the process by which the spiral spring 9 releases energy. When the metal ring 16 fixed to the main rope 12 reaches the sensing area of ​​the proximity switch 15, the proximity switch 15 controls the water pump 3 to stop operating.

[0047] The internal circuit forms an open circuit or a closed circuit based on the normally open or normally closed characteristics of the selected proximity switch 15, and stops the water pump 3 through the relevant auxiliary control electrical control.

[0048] This application effectively prevents the safety hazards of floating drainage platforms touching the bottom and draining, unaffected by the amount of silt deposited at the bottom of the reservoir, ensuring that the floating drainage platform always maintains a safe distance from the silt at the bottom of the reservoir when the water level is at its lowest. It offers advantages such as simple manufacturing, installation, and maintenance, low cost, and safe and reliable use.

[0049] This invention can eliminate the uncertainty of the sedimentation height of the bottom of the reservoir, automatically ensure the minimum safe drainage level of the floating drainage platform 1, and prevent the water pump 3 from touching the bottom and draining water. It can effectively avoid the technical problem of water pump 3 touching the bottom and draining water due to difficulties in observation and human error in remote operation caused by bad weather and night.

[0050] This utility model is a clever combination of mechanical structure and magnetic proximity switch. When the water level is low, the proximity switch 15 senses the metal ring 16 fixed on the main rope 12, and the control circuit forms a closed circuit or an open circuit. Then, through other auxiliary electrical components, the water pump 3 is stopped automatically in time. When the water level is at the lowest safe level, the circuit of the running water pump 3 can be automatically disconnected and drainage can be stopped.

[0051] This utility model has a simple working principle and design structure, reliable automatic control performance, can ensure the safety of drainage facilities, reduce the workload of remote operators, and prevent water pump 3 from bottoming out and sucking in a large amount of mud and sand, causing impeller blockage and equipment damage accidents; it also prevents a large amount of mud and sand deposited at the bottom from being discharged into the lower pump room, accelerating the wear and tear of equipment and pipelines, reducing the capacity of water storage tanks, etc., and reducing the enterprise's large amount of water storage tank dredging costs.

[0052] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A floating drainage platform anti-bottom-touch triggering device, comprising a floating drainage platform (2), characterized in that: A water pump (3) is provided in the middle of the floating drainage platform (2), and an anti-bottom-touch triggering device assembly (1) is provided on the side of the floating drainage platform (2). The bottom-touch trigger device assembly (1) includes a bottom shell (8), a bottom shell neck (10) with an axial protrusion is provided in the middle of the bottom shell (8), a grooved wheel (11) is fitted on the outer ring of the bottom shell neck (10), and a spiral spring (9) is installed between the bottom shell neck (10) and the grooved wheel (11). The bottom shell (8) is provided with a first guide wheel (13) and a second guide wheel (14) installed at intervals. The grooved wheel (11) is connected to a main rope (12). One end of the main rope (12) is fixed to the grooved wheel (11), and the other end of the main rope (12) passes through the first guide wheel (13) and the second guide wheel (14) in sequence and is connected to the bottom-touching device (18). A metal ring (16) is provided along the main rope (12). The bottom of the base (8) is also fitted with a proximity switch (15), and the output end of the proximity switch (15) is electrically connected to the water pump (3).

2. The anti-bottom-touching triggering device for a floating drainage platform according to claim 1, characterized in that: The bottom shell (8) is provided with a main fixing foot (5), and the bottom shell (8) is fixedly installed on the outside of the floating drainage platform (2) by the main fixing foot (5) and bolts.

3. The anti-bottom-touching triggering device for a floating drainage platform according to claim 1, characterized in that: The diameter of the grooved wheel (11) is larger than the outer diameter of the bottom shell neck (10). The inner hole of the grooved wheel (11) is axially movably sleeved on the bottom shell neck (10) to form a cavity for installing the spiral spring (9).

4. The anti-bottom-touching triggering device for a floating drainage platform according to claim 3, characterized in that: The spiral spring (9) is helical, and the two ends of the spiral spring (9) are fixed to the inner hole surface of the grooved wheel (11) and the outer diameter surface of the neck of the bottom shell (10), respectively.

5. The anti-bottom-touching triggering device for a floating drainage platform according to claim 1, characterized in that: The first guide wheel (13) and the second guide wheel (14) are respectively mounted on the bottom shell (8) via a rotating shaft and can rotate flexibly.

6. The anti-bottom-touching triggering device for a floating drainage platform according to claim 1, characterized in that: The connection between the main rope (12) and the bottom contact device (18) is fixed by a rope clip (17).

7. The anti-bottom-touching triggering device for a floating drainage platform according to claim 1, characterized in that: The installation distance between the metal ring (16) and the bottom contact device (18) determines the minimum safe distance between the water pump (3) and the bottom (4) of the water storage tank when the water pump (3) drains water.

8. The anti-bottom-touching triggering device for a floating drainage platform according to claim 1, characterized in that: The bottom shell (8) is provided with a top cover (7) on its surface. Fixed feet (6) are provided at intervals along the outer edge of the bottom shell (8). The top cover (7) is assembled with the bottom shell (8) by bolts through the fixed feet (6).

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