Floating ball submersible pump

Abstract

The application relates to a floating ball submersible pump which comprises a pump body, a cable arranged on the pump body and a floating ball arranged on the cable, a limiting hole is arranged on the pump body, the cable passes through the limiting hole, an adjusting ring is threadedly connected to the pump body, the adjusting ring is located between the limiting hole and the floating ball and is sleeved outside the pump body, a through hole is arranged on the adjusting ring, and the cable passes through the through hole. According to actual requirements, the adjusting ring is rotated, the cable is wound outside the pump body through the abutment of the inner wall of the through hole and the cable, so that the part of the cable between the limiting hole and the adjusting ring is wound outside the pump body, the sag height of the floating ball is adjusted, the working stop time of the submersible pump is changed, the adjusting ring can be continuously rotated according to requirements, the adjusting ring abuts against the floating ball, at this moment, the cable is wound outside the pump body to be stored, the cable winding and knotting are reduced, and the submersible pump is convenient to move and store.

Description

Technical Field

[0001] This application relates to the field of submersible pumps, and more particularly to a float submersible pump. Background Technology

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit is submerged in water to extract groundwater to the surface. They are commonly used for domestic water supply, mine rescue, industrial cooling, farmland irrigation, seawater lifting, and ship ballast adjustment.

[0003] To enable automatic start-up of the submersible pump, a cable-mounted float is installed externally and electrically connected to the pump's control circuit. Simply placing the float in the water allows it to detect the water level. When the water level is too low, the control circuit stops the submersible pump; when the water level is high, it starts the pump. When the float is on the surface, its position and angle are constrained by the cable. The float contains a component that rolls with gravity, and changes in its angle generate electrical signals that control the pump's start and stop.

[0004] For example, utility model patent CN206513582U discloses a submersible pump with a float, including a pump body and a control circuit installed inside the pump body. A cable-type float is flexibly connected to the pump body via a cable. The normally open contact switch of the cable-type float is electrically connected to the control circuit via the cable. The control circuit includes: a live wire terminal and a neutral wire terminal for connecting the live wire and the neutral wire respectively; an output branch connected between the live wire terminal and the neutral wire terminal, with an output terminal connected to the motor of the submersible pump on the output branch; a start / stop branch connected between the live wire terminal and the neutral wire terminal, including a first relay and an indicator light connected in series; the normally open contact switch of the cable-type float connected in series in the start / stop branch; the normally open contact switch of the first relay connected in series in the output branch; a test branch connected between the live wire terminal and the neutral wire terminal, including a test switch and a second relay connected in series; and the normally closed contact switch of the second relay connected in series in the output branch, which has a float detection function.

[0005] With the above-mentioned submersible pump, the cable float is installed after the submersible pump. The length of the cable is fixed, so the float will only move when the water level drops to a fixed position, thereby controlling the pump to stop working. However, in actual use, people have different needs for the amount of water stored after pumping is completed. The water does not necessarily have to be pumped to the fixed height at which the float moves. It is difficult for this submersible pump to adjust the timing of automatic stop. Summary of the Invention

[0006] To address the problem of float submersible pumps having difficulty adjusting the timing of automatic shutdown, this application provides a float submersible pump.

[0007] This application provides a float-type submersible pump, which adopts the following technical solution:

[0008] A float submersible pump includes a pump body, a cable disposed on the pump body, and a float disposed on the cable. The pump body has a limiting hole, through which the cable passes. An adjusting ring is threadedly connected to the pump body. The adjusting ring is located between the limiting hole and the float and is sleeved on the outside of the pump body. The adjusting ring has a through hole, through which the cable passes.

[0009] By adopting the above technical solution, the adjusting ring can be rotated according to actual needs. The adjusting ring abuts against the cable through the perforated inner wall, causing the portion of the cable between the limiting hole and the adjusting ring to be wound around the outside of the pump body. The adjusting ring is positioned through the threaded engagement with the pump body, thereby adjusting the descent height of the float and changing the timing of the submersible pump's automatic stop. The adjusting ring can also be rotated further as needed, causing it to abut against the float. At this point, the cable is wound up around the outside of the pump body for storage, reducing cable tangling and knotting, thus facilitating the movement and storage of the submersible pump.

[0010] Optionally, the adjusting ring includes a ring body threadedly connected to the pump body, a protrusion on the ring body, and a retaining block on the protrusion. The protrusion is located below the ring body and on both sides of the through hole. The retaining block is located on the side of the protrusion away from the ring body. The retaining block has a mounting groove for the protrusion to slide and engage. One end of the mounting groove passes through the retaining block. An elastic block is provided on the side of the retaining block near the through hole. The elastic block is used to press against the cable.

[0011] By adopting the above technical solution, the cable is positioned by the elastic blocks on both sides of the perforation pressing against the cable. This reduces the risk of cable sheath wear caused by the float swinging and pulling at the connection between the cable and the pump body, which could lead to circuit failure or leakage. The separation of the protrusions and the pressing of the elastic blocks straighten the part of the cable near the perforation located below the ring body. With the elastic buffer of the elastic blocks, when the cable shakes with the float, the wear between the cable and the ring body can be reduced, extending the service life of the cable.

[0012] When it is necessary to adjust the sag height of the float, move the abutment block to remove it from the protrusion, and then rotate the ring. At this time, the resistance caused by the elastic block is gone, making it easier and more convenient to rotate the ring to adjust the sag height of the float. It can also reduce the pulling of the cable during the adjustment process, which is conducive to further extending the service life of the cable.

[0013] Optionally, the protrusion includes a connecting portion on the ring body and a limiting portion on the connecting portion, the limiting portion being located on the side of the connecting portion away from the ring body, and the mounting groove for the connecting portion and the limiting portion to be engaged.

[0014] By adopting the above technical solution, a limiting part is set, which abuts against the inner wall of the mounting groove, thereby limiting the clamping block and reducing the possibility of the clamping block slipping off the protrusion without human intervention.

[0015] Optionally, the float may be detachably connected to several counterweights.

[0016] By adopting the above technical solution, the buoyancy deviation caused by changes in liquid density can be compensated by adding or removing counterweights. When the liquid density increases, the counterweight is added accordingly, which enables the float to resume accurate start and stop actions at the preset original design water level, ensuring the accuracy of water level control. This allows the same float to be used in most application scenarios, reduces the types of spare parts, and lowers the overall cost of use.

[0017] Optionally, the counterweight has a slot, and the float has several slots for the counterweight to be inserted. A locking block is slidably connected to the float, and the locking block has a clearance groove for the counterweight to be engaged. The slots allow the locking block to be engaged. A positioning element is also threaded onto the float, and an elastic element is also provided on the float. The elastic element abuts against the locking block, causing the locking block to abut against the positioning element.

[0018] By adopting the above technical solution, when it is necessary to add or remove counterweights, the positioning component is twisted to move it away from the locking block. The locking block undergoes the same displacement under the action of the elastic component, so that the clearance groove and the slot are aligned. At this time, if it is necessary to reduce the counterweight, the counterweight in the slot is taken out. If it is necessary to add the counterweight, another counterweight is taken out and inserted into the empty slot. Then, the positioning component is twisted in the opposite direction to move it closer to the locking block. The positioning component pushes the locking block to move, so that the locking block is inserted into the slot. The counterweight is positioned by the locking block abutting against the inner wall of the slot. The operation is simple.

[0019] Optionally, the float is provided with a limiting block, which is located on the side of the locking block away from the positioning member. When the limiting block abuts against the locking block, the locking block is locked into the locking groove.

[0020] By adopting the above technical solution and setting a limiting block, the limiting block abuts against the card block to limit the card block. While achieving the effect of the card block being inserted into the card slot, it reduces the situation where the card block excessively compresses the elastic element, causing elastic fatigue of the elastic element, which is conducive to extending the service life of the elastic element.

[0021] Optionally, the float is provided with a screw, which is vertically positioned when the float hangs down naturally, and an adjusting weight is threaded onto the screw.

[0022] By adopting the above technical solution, an adjustment weight is set, and by twisting the adjustment weight, the position of the adjustment weight is adjusted to change the center of gravity of the float, thereby enhancing the float's anti-tipping ability. In scenarios such as water flow fluctuations, sudden changes in water level, or impacts from impurities in the water, the float is less likely to tilt, flip, or shake significantly, and always maintains a stable floating posture. The action is only triggered when the water level exceeds the set threshold, reducing the ineffective energy consumption and equipment damage caused by frequent switching due to float shaking and repeated tilting.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. As needed, the adjusting ring can be rotated so that the cable is abutted against the inner wall of the perforated ring, causing the portion of the cable between the limiting hole and the adjusting ring to be wound around the outside of the pump body. This adjusts the descent height of the float and changes the timing of the submersible pump's automatic stop. The adjusting ring can also be rotated further as needed so that it abuts against the float. At this point, the cable is wound up around the outside of the pump body for storage, reducing cable tangling and making it easier to move and store the submersible pump.

[0025] 2. The cable is positioned by the elastic blocks on both sides of the perforation, which reduces the risk of the cable being pulled at the connection between the cable and the pump body due to the swing of the float, causing wear on the cable sheath and thus leading to circuit failure or leakage. The protrusions and the elastic blocks straighten the part of the cable near the perforation located below the ring. The elasticity of the elastic blocks reduces wear between the cable and the ring when the float swings, thus extending the service life of the cable.

[0026] 3. By adding or removing counterweights, buoyancy deviations caused by changes in liquid density can be compensated, ensuring the accuracy of water level control. This allows the same float to be used in most application scenarios, reducing the types of spare parts and lowering overall usage costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an embodiment of this application.

[0028] Figure 2 This is a partial structural diagram of an embodiment of this application, mainly showing the perforated structure.

[0029] Figure 3 This is a partial exploded structural diagram of an embodiment of this application, mainly showing the structure of the mounting groove.

[0030] Figure 4 This is a partial cross-sectional view of the structure at the float and the limiting block in an embodiment of this application.

[0031] Figure 5 This is a partial exploded structural view of an embodiment of this application, mainly showing the structure of the card slot and the clearance slot.

[0032] Figure 6 for Figure 4 The enlarged view of section A mainly shows the structure of the slide and the limiting block.

[0033] Figure 7 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the screw and the adjusting weight.

[0034] Explanation of reference numerals in the attached drawings: 1. Pump body; 11. Main body; 12. Fixing block; 121. Limiting hole; 2. Cable; 3. Float; 31. Slot; 32. Slide groove; 4. Adjusting ring; 41. Ring body; 411. Through hole; 42. Protrusion; 421. Connecting part; 422. Limiting part; 43. Pressing block; 431. Mounting groove; 5. Elastic block; 6. Counterweight block; 61. Slot; 7. Locking block; 71. Relief groove; 8. Positioning component; 9. Elastic component; 10. Limiting block; 13. Screw; 14. Adjusting weight block. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0036] This application discloses a float-type submersible pump. See also... Figure 1 The float submersible pump includes a pump body 1, a cable 2, and a float 3. The pump body 1 includes a main body 11 and a fixing block 12. One end of the cable 2 is fixed to the main body 11, and the float 3 is fixed to the end of the cable 2 away from the main body 11.

[0037] See Figures 1-3 The fixing block 12 is located on one side of the pump body 1 along the horizontal direction and above the float 3. The fixing block 12 is fixed to the pump body 1. A limiting hole 121 is opened on the fixing block 12. The limiting hole 121 vertically penetrates the fixing block 12. The cable 2 passes through the limiting hole 121. An adjusting ring 4 is threadedly connected to the main body 11. The adjusting ring 4 includes a ring body 41, two protrusions 42 and a retaining block 43. The ring body 41 is located between the fixing block 12 and the float 3 and is sleeved on the outside of the main body 11. The ring body 41 and the main body 11 are threadedly connected. A through hole 411 is opened on the outer wall of the ring body 41. The through hole 411 vertically penetrates the ring body 41. The cable 2 passes through the through hole 411.

[0038] See Figures 1-3Both protrusions 42 are located below the ring body 41 and on opposite sides of the through hole 411. Each protrusion 42 includes a connecting portion 421 and a limiting portion 422. The connecting portion 421 is fixed to the ring body 41, and the limiting portion 422 is located on the side of the connecting portion 421 away from the ring body 41 and is fixedly connected to the connecting portion 421. The number and position of the abutting blocks 43 correspond one-to-one with the number and position of the protrusions 42. The abutting blocks 43 are located on the side of the corresponding connecting portion 421 away from the ring body 41. On one side, the abutment block 43 has an installation groove 431 on the outer wall near the ring body 41. One end of the installation groove 431 passes through the abutment block 43. The installation groove 431 allows the connecting part 421 and the limiting part 422 to slide and engage. When the connecting part 421 and the limiting part 422 are engaged in the installation groove 431, the limiting part 422 abuts against the inner wall of the installation groove 431, thereby limiting the abutment block 43 and reducing the possibility of the abutment block 43 slipping off the protrusion 42 under non-human circumstances.

[0039] See Figures 1-3 Each clamping block 43 has an elastic block 5 fixed on the side near the through hole 411. The elastic block 5 is used to clamp the cable 2 that passes through the through hole 411. In this embodiment, the elastic block 5 is made of rubber.

[0040] See Figures 1-6 The float 3 has several slots 31 on its outer side wall, which are evenly spaced horizontally. Several counterweights 6 are detachably connected to the float 3. The slots 31 are for inserting the counterweights 6. Each counterweight 6 has a slot 61 on its outer side wall, which passes through the counterweight 6 along the distribution direction of the slots 31. The float 3 has a sliding groove 32 on its outer side wall, which communicates with the slots 31. A locking block 7 is slidably connected to the float 3. The locking block 7 is slidably connected in the sliding groove 32, and the sliding direction of the locking block 7 is parallel to the distribution direction of the slots 31. The locking block 7 has several clearance slots 71 on its outer side wall. The number and position of the clearance slots 71 correspond one-to-one with the number and position of the slots 31. The clearance slots 71 pass vertically through the locking block 7 and communicate with the slots 31. The clearance slots 71 are for locking the counterweights 6, and the slots 61 are for locking the locking blocks 7.

[0041] See Figures 1-6 The float 3 is also threadedly connected to a positioning element 8, which is located on the side of the locking block 7 away from the bottom of the groove 32. The float 3 is also equipped with an elastic element 9, which is located inside the groove 32 and on the side of the locking block 7 away from the positioning element 8. The opposite ends of the elastic element 9 abut against the inner wall of the bottom of the groove 32 and the locking block 7, respectively, so that the locking block 7 abuts against the positioning element 8. In this embodiment, the elastic element 9 is a spring and the positioning element 8 is a positioning block.

[0042] See Figures 1-6A limiting block 10 is fixed on the float 3. The limiting block 10 is located in the slide groove 32 and on the side of the locking block 7 away from the positioning member 8. When the limiting block 10 abuts against the locking block 7, the locking block 7 is locked into the locking groove 61.

[0043] In practical use, when it is necessary to add or remove counterweight 6, the positioning element 8 is twisted to move the positioning element 8 away from the locking block 7. The locking block 7 undergoes the same displacement under the action of the elastic element 9, so that the clearance groove 71 and the slot 31 are aligned. At this time, if it is necessary to reduce the counterweight 6, the counterweight 6 in the slot 31 is taken out. If it is necessary to add the counterweight 6, another counterweight 6 is taken out and inserted into the empty slot 31. Then the positioning element 8 is twisted in the opposite direction to move the positioning element 8 closer to the locking block 7. The positioning element 8 pushes the locking block 7 to move, so that the locking block 7 is inserted into the slot 61 until the locking block 7 abuts against the limiting block 10. The positioning element 8 is released. The positioning element 8 is positioned by the threaded engagement with the float 3. The counterweight 6 is positioned by the locking block 7 abutting against the inner wall of the slot 61. The counterweight 6 is detachably connected to the float 3 by the engagement between the locking block 7, the elastic element 9 and the positioning element 8.

[0044] In another embodiment, the counterweight 6 can also be detachably connected to the float 3 by being threaded onto the float 3.

[0045] When the float submersible pump is applied to scenarios with different liquid densities, the buoyancy deviation caused by the change in liquid density can be compensated by adding or removing the counterweight 6. When the liquid density increases, the counterweight is added accordingly, so that the float 3 can resume accurate start and stop actions at the preset original design water level, ensuring the accuracy of water level control. This allows the same float 3 to be used in most application scenarios, reducing the types of spare parts and lowering the overall cost of use.

[0046] See Figures 1-7 A screw 13 is fixed on the float 3. The screw 13 is located on the side of the float 3 away from the counterweight 6. When the float 3 hangs down naturally, the screw 13 is set vertically. An adjusting weight 14 is threaded onto the screw 13 and is sleeved on the outside of the screw 13.

[0047] In practical use, by twisting the adjusting weight 14, the position of the adjusting weight 14 is adjusted to change the center of gravity of the float 3, thereby enhancing the anti-tipping ability of the float 3. In scenarios such as water flow fluctuations, sudden changes in water level, or impacts from impurities in the water, the float 3 is less likely to tilt, flip, or shake significantly, and always maintains a stable floating posture. The action is only triggered when the water level exceeds the set threshold, reducing the ineffective energy consumption and equipment damage caused by frequent switching due to the shaking and repeated tilting of the float 3.

[0048] The implementation principle of a float submersible pump according to an embodiment of this application is as follows:

[0049] According to actual needs, the clamping block 43 can be moved so that the connecting part 421 and the limiting part 422 are disengaged from the mounting groove 431. The clamping block 43 can be removed from the protrusion 42. Then, the ring body 41 can be rotated. The ring body 41 abuts against the cable 2 through the inner wall of the through hole 411 so that the part of the cable 2 located between the limiting hole 121 and the ring body 41 is wound around the outside of the main body 11. The ring body 41 is positioned by the threaded engagement with the main body 11, thereby adjusting the descent height of the float 3 and changing the timing of the submersible pump's automatic stop. The ring body 41 can also be rotated further as needed so that the ring body 41 abuts against the float 3. At this time, the cable 2 is wound around the outside of the main body 11 for storage, reducing the situation of the cable 2 getting tangled and knotted, so as to facilitate the movement and storage of the submersible pump.

[0050] After the ring 41 has rotated, the moving abutment block 43 is moved so that the connecting part 421 and the limiting part 422 are re-engaged into the mounting groove 431, thus realizing the installation of the abutment block 43 on the protrusion 42. At this time, the elastic blocks 5 on both sides of the through hole 411 abut against the cable 2 to position the cable 2, reducing the risk of cable 2 being pulled by the swing of the float 3 at the connection between the cable 2 and the main body 11, causing wear on the outer sheath of the cable 2, and thus causing circuit failure or leakage risk. The separation of the protrusion 42 and the abutment of the elastic block 5 straighten the part of the cable 2 located below the ring 41 that is close to the through hole 411. Under the elastic buffer of the elastic block 5, when the cable 2 shakes with the swing of the float 3, the wear between the cable 2 and the ring 41 can be reduced, extending the service life of the cable 2.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A floating ball submersible pump comprising a pump body (1), a cable (2) provided on the pump body (1) and a floating ball (3) provided on the cable (2), characterized in that: The pump body (1) is provided with a limiting hole (121), the cable (2) passes through the limiting hole (121), the pump body (1) is provided with an adjusting ring (4) which is connected with the pump body (1) through screw thread, the adjusting ring (4) is located between the limiting hole (121) and the floating ball (3) and is sleeved outside the pump body (1), the adjusting ring (4) is provided with a through hole (411), and the cable (2) passes through the through hole (411). The adjusting ring (4) comprises a ring body (41) which is connected with the pump body (1) through screw thread, a protruding block (42) which is arranged on the ring body (41) and a pressing block (43) which is arranged on the protruding block (42), the protruding block (42) is located below the ring body (41) and is located on both sides of the through hole (411), the pressing block (43) is located on the side of the protruding block (42) which is away from the ring body (41), the pressing block (43) is provided with an installation groove (431) which is used for slidingly clamping the protruding block (42), one end of the installation groove (431) penetrates the pressing block (43), and the side of the pressing block (43) which is close to the through hole (411) is provided with an elastic block (5), the elastic block (5) is used for pressing the cable (2).

2. The float ball submersible pump as claimed in claim 1 wherein: The protruding block (42) comprises a connecting part (421) which is arranged on the ring body (41) and a limiting part (422) which is arranged on the connecting part (421), the limiting part (422) is located on the side of the connecting part (421) which is away from the ring body (41), and the installation groove (431) is used for clamping the connecting part (421) and the limiting part (422).

3. The float ball submersible pump as claimed in claim 1 wherein: The floating ball (3) is detachably connected with a plurality of counterweight blocks (6).

4. The float ball submersible pump of claim 3, wherein: The counterweight block (6) is provided with a clamping groove (61), the floating ball (3) is provided with a plurality of insertion grooves (31), the insertion grooves (31) are used for inserting the counterweight blocks (6), the floating ball (3) is slidably connected with a clamping block (7), the clamping block (7) is provided with a gap groove (71) which is used for clamping the counterweight block (6), the clamping groove (61) is used for clamping the clamping block (7), the floating ball (3) is further provided with a positioning member (8) which is connected with the floating ball (3) through screw thread, and the floating ball (3) is further provided with an elastic member (9), the elastic member (9) presses the clamping block (7), so that the clamping block (7) presses the positioning member (8).

5. The float ball submersible pump of claim 4, wherein: The floating ball (3) is provided with a limiting block (10), the limiting block (10) is located on the side of the clamping block (7) which is away from the positioning member (8), when the limiting block (10) abuts against the clamping block (7), the clamping block (7) is clamped into the clamping groove (61).

6. The float ball submersible pump of claim 1, wherein: The floating ball (3) is provided with a screw rod (13), when the floating ball (3) naturally droops, the screw rod (13) is vertically arranged, and the screw rod (13) is provided with an adjusting weight (14) which is connected with the screw rod (13) through screw thread.

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