Lithium battery water pump with detachable battery

Abstract

The invention belongs to the technical field of water pumps, and particularly relates to a lithium battery water pump with a detachable battery. Comprising a water pump body, a junction box is arranged at the bottom of the water pump body, and a lithium battery mechanism detachably connected with the junction box is arranged at the bottom of the junction box. Mounting holes are formed in the bottom of the junction box; the bottom of the junction box is provided with an annular copper sheet electrically connected with the water pump body and an annular sealing ring, and the diameter of the annular sealing ring is larger than that of the annular copper sheet. The lithium battery mechanism comprises a lithium battery placing box, and the top of the lithium battery placing box is provided with a protrusion in threaded connection with the mounting hole. And a telescopic positive contact and a telescopic negative contact are arranged at the top of the lithium battery placing box and are respectively matched with the two annular copper sheets. And an annular bulge matched with the annular sealing ring is arranged at the top of the lithium battery placing box. The lithium battery mechanism can be detached and replaced, the working efficiency is improved, the positive electrode contact and the negative electrode contact can be electrically connected with the annular copper sheet quickly and automatically, and the connection stability is good.

Description

Technical Field

[0001] The invention belongs to the technical field of water pumps, and in particular relates to a detachable lithium battery water pump. Background Art

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit submerges into the water to extract groundwater to the surface. They are widely used in domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship load adjustment, fountain landscape, etc. During operation, the motor submerges into the water with the pump body, and discharges the liquid from the pump outlet through the work of the impeller or other structures.

[0003] Existing lithium-ion submersible pumps are generally rechargeable, and the battery pack is not removable, resulting in insufficient battery life. After the battery power is consumed, the pump needs to stop working and recharge before it can be used, which is inconvenient. There are a few submersible pumps on the market with removable lithium batteries, but their connection structure is complex and the waterproof effect is poor. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a detachable lithium battery water pump which is easy to install and disassemble and has a good sealing effect.

[0005] The purpose of the present invention is to be solved by the following technical solutions: A removable lithium battery water pump, characterized in that it comprises a water pump body, a junction box is provided at the bottom of the water pump body, and a lithium battery mechanism is provided at the bottom of the junction box that is removably connected to the junction box; The bottom of the junction box is provided with a mounting hole, and the mounting hole is provided with an internal thread; the bottom of the junction box is provided with two annular copper sheets arranged concentrically with the mounting holes, and the annular copper sheets are electrically connected to the water pump body; the bottom of the junction box is provided with a circular mounting groove arranged concentrically with the mounting hole, and a circular sealing ring is arranged in the circular mounting groove, and the diameter of the circular mounting groove is greater than the diameter of the annular copper sheets; The lithium battery mechanism includes a lithium battery placement box, in which a lithium battery body is placed, a protrusion that matches the mounting hole is provided on the top of the lithium battery placement box, and an external thread is provided on the protrusion; a retractable positive contact and a negative contact are provided on the top of the lithium battery placement box, and the positions of the positive contact and the negative contact respectively match the two annular copper sheets arranged at the bottom of the junction box, and the positive contact and the negative contact are electrically connected to the lithium battery body; a circular protrusion that is concentric with the protrusion is provided on the top of the lithium battery placement box, and the circular protrusion is embedded in the circular sealing ring.

[0006] Based on the above structure, the lithium battery and the junction box are detachably connected, and the threaded connection method makes its installation and disassembly process simple and fast. When the lithium battery and the junction box are connected, the positive contact and the negative contact can be quickly and automatically electrically connected to the annular copper sheet. The cooperation of the annular sealing ring and the annular protrusion can effectively prevent water from entering the connection between the positive contact and the negative contact and the annular copper sheet, thereby ensuring the normal operation of the water pump.

[0007] Preferably, the water pump body shell of the present invention is in a truncated cone shape, a water outlet is provided on the top of the water pump body, and a water inlet is provided on the bottom side wall of the water pump body.

[0008] Preferably, the junction box of the present invention is cylindrical, comprising a first box body with an opening at the bottom and a first cover body detachably arranged at the bottom of the first box body, the first cover body is fixed to the bottom of the first box body by bolts, and a second sealing ring is provided at the connection between the first box body and the first cover body.

[0009] Preferably, the lithium battery placement box of the present invention is cylindrical, including a second box body with an opening on the top and a second cover body detachably arranged on the top of the second box body, the second cover body is fixed to the top of the second box body by bolts, and a third sealing ring is provided at the connection between the second box body and the second cover body.

[0010] Preferably, the central axis of the water pump body, the central axis of the junction box, the central axis of the lithium battery mechanism, the central axis of the mounting hole, the central axis of the protrusion, the central axis of the annular copper sheet, the central axis of the circular mounting groove, the central axis of the circular sealing ring, and the central axis of the circular protrusion described in the present invention all coincide, and the outer diameter of the junction box is equal to the outer diameter of the lithium battery placement box.

[0011] Preferably, the positive contact of the present invention includes a first base, a first compression spring, and a first contact body. A first cylindrical hole for accommodating the first contact body is opened in the first base, the opening of the first cylindrical hole is arranged upward, a first compression spring is arranged at the bottom of the first cylindrical hole, the bottom of the first contact body is in the first cylindrical hole and on the first compression spring, the top of the first contact body is outside the opening of the first cylindrical hole, a first annular baffle is arranged on the opening of the first cylindrical hole, a first circular baffle is arranged at the bottom of the first contact body, and the diameter of the first circular baffle is larger than the inner diameter of the first circular baffle.

[0012] Preferably, in the present invention, a first circular chassis is provided at the bottom of the first base, a first through hole for installing the first base is opened on the second cover body, the first base and the first through hole are interference fit, the first contact body passes through the first through hole and contacts with the annular copper sheet; the first circular chassis is in the second cover body, the diameter of the first circular chassis is larger than the diameter of the first through hole, and a first welding groove for connecting to the lithium battery connecting wire is provided at the bottom of the first circular chassis.

[0013] Preferably, the negative electrode contact of the present invention includes a second base, a second compression spring, and a second contact body. A second cylindrical hole for accommodating the second contact body is opened in the second base, the opening of the second cylindrical hole is arranged upward, a second compression spring is arranged at the bottom of the second cylindrical hole, the bottom of the second contact body is in the second cylindrical hole and on the second compression spring, the top of the second contact body is outside the opening of the second cylindrical hole, a second annular baffle is arranged on the opening of the second cylindrical hole, a second circular baffle is arranged at the bottom of the second contact body, and the diameter of the second circular baffle is greater than the inner diameter of the second circular baffle.

[0014] Preferably, a second circular chassis is provided at the bottom of the second base of the present invention, a second through hole for installing the second base is opened on the second cover body, the second base and the second through hole are interference fit, the second contact body passes through the second through hole and contacts with the annular copper sheet; the second circular chassis is in the second cover body, the diameter of the second circular chassis is larger than the diameter of the second through hole, and a second welding groove for connecting to the lithium battery connecting wire is provided at the bottom of the second circular chassis.

[0015] Compared with the prior art, the present invention has the following characteristics and beneficial effects: 1. The present invention is provided with a detachable lithium battery mechanism, which can be quickly replaced and then work immediately, thereby improving work efficiency and enabling sustainable work. At the same time, the lithium battery mechanism can also be removed and placed in a safe place to be charged separately through a charging port, thereby improving safety of use.

[0016] 2. The first contact body of the positive contact and the second contact body of the negative contact contact two annular copper sheets respectively. The first compression spring and the second compression spring respectively push the first contact body and the second contact body upward to ensure that the first contact body and the second contact body are in contact with the annular copper sheets. The connection stability is good and poor contact is not likely to occur.

[0017] 3. The setting of the second sealing ring and the third sealing ring respectively improves the sealing effect of the junction box and the lithium battery placement box to ensure the normal use of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the junction box of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the lithium battery mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the positive electrode contact of the present invention.

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the negative electrode contact of the present invention.

[0024] In the figure: water pump body 1, water outlet 2, water inlet 3, junction box 4, lithium battery mechanism 5, first box body 6, first cover body 7, second sealing ring 8, mounting hole 9, annular copper sheet 10, circular mounting groove 11, circular sealing ring 12, battery placement box 13, second box body 14, second cover body 15, third sealing ring 16, protrusion 17, positive contact 18, negative contact 19, circular protrusion 20, first base 21, first compression spring 22, first contact body 23, first cylindrical hole 24, first circular baffle 25, first circular baffle 26, first circular chassis 27, first through hole 28, first welding groove 29, lithium battery body 30, second base 31, second compression spring 32, second contact body 33, second cylindrical hole 34, second circular baffle 35, second circular baffle 36, second circular chassis 37, second through hole 38, second welding groove 39. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] like Figure 1 , Figure 2 , a removable lithium battery water pump is shown, comprising a water pump body 1, the outer shell of the water pump body 1 is in the shape of a truncated cone, a water outlet 2 is provided on the top of the water pump body 1, and a water inlet 3 is provided on the bottom side wall of the water pump body 1. A junction box 4 is provided at the bottom of the water pump body 1, and a lithium battery mechanism 5 detachably connected to the junction box is provided at the bottom 4 thereof. By providing a removable lithium battery mechanism 5, the lithium battery mechanism 5 can be quickly replaced and immediately put into operation, thereby improving work efficiency and enabling continuous operation. At the same time, the lithium battery mechanism 5 can also be removed and placed in a safe place for separate charging through a charging hole, thereby improving safety in use.

[0027] like Figure 2 , Figure 3 As shown, the junction box 4 is cylindrical, including a first box body 6 with an opening at the bottom and a first cover body 7 detachably arranged at the bottom of the first box body 6, the first cover body 7 is fixed to the bottom of the first box body 6 by bolts, and a second sealing ring 8 is arranged at the connection between the first box body 6 and the first cover body 7, and a mounting hole 9 is arranged at the bottom of the junction box 4, and an internal thread is arranged in the mounting hole 9; two annular copper sheets 10 concentrically arranged with the mounting holes 9 are arranged at the bottom of the junction box 4, and the annular copper sheets 10 are electrically connected to the water pump body 1; a circular mounting groove 11 concentrically arranged with the mounting hole 9 is arranged at the bottom of the junction box 4, and a circular sealing ring 12 is arranged in the circular mounting groove 11, and the diameter of the circular mounting groove 11 is larger than the diameter of the annular copper sheet 10.

[0028] like Figure 2 , Figure 4 As shown, the lithium battery mechanism 5 includes a lithium battery placement box 13, which is cylindrical and includes a second box body 14 with an opening on the top and a second cover body 15 detachably arranged on the top of the second box body 14, the second cover body 15 is fixed to the top of the second box body 14 by bolts, and a third sealing ring 16 is provided at the connection between the second box body 14 and the second cover body 15. A lithium battery body 30 is placed in the lithium battery placement box 13. A protrusion 17 that cooperates with the mounting hole 9 is provided on the top of the lithium battery placement box 13, and an external thread is provided on the protrusion 17; a retractable positive contact 18 and a negative contact 19 are provided on the top of the lithium battery placement box 13. The positions of the positive contact 18 and the negative contact 19 are respectively matched with the two annular copper sheets 10 arranged at the bottom of the junction box 4, and the positive contact 18 and the negative contact 19 are both electrically connected to the lithium battery body 30; a circular protrusion 20 that is concentric with the protrusion 17 is provided on the top of the lithium battery placement box 13, and the circular protrusion 20 is embedded in the circular sealing ring 12.

[0029] Preferably, the central axis of the water pump body 1, the central axis of the junction box 4, the central axis of the lithium battery mechanism 5, the central axis of the mounting hole 9, the central axis of the protrusion 17, the central axis of the annular copper sheet 10, the central axis of the circular mounting groove 11, the central axis of the circular sealing ring 12, and the central axis of the circular protrusion 20 of the present invention all coincide, and the outer diameter of the junction box 4 is equal to the outer diameter of the lithium battery placement box 13.

[0030] like Figure 2 , Figure 5 As shown, the positive contact 18 includes a first base 21, a first compression spring 22, and a first contact body 23. A first cylindrical hole 24 for accommodating the first contact body 23 is opened in the first base 21. The opening of the first cylindrical hole 24 is arranged to face upward. A first compression spring 22 is arranged at the bottom of the first cylindrical hole 24. The bottom of the first contact body 23 is located in the first cylindrical hole 24 and on the first compression spring 22. The top of the first contact body 23 is located outside the opening of the first cylindrical hole 24. A first annular baffle 25 is arranged on the opening of the first cylindrical hole 24. A first circular baffle 26 is arranged at the bottom of the first contact body 23. The diameter of the first circular baffle 26 is greater than the inner diameter of the first annular baffle 25.

[0031] A first circular chassis 27 is provided at the bottom of the first base 21, and a first through hole 28 for mounting the first base 21 is opened on the second cover body 15. The first base 21 and the first through hole 28 are interference fit, and the first contact body 23 passes through the first through hole 28 and contacts with the annular copper sheet 10; the first circular chassis 27 is located in the second cover body 15, and the diameter of the first circular chassis 27 is larger than the diameter of the first through hole 28. A first welding groove 29 for connecting to the connecting wire of the lithium battery body 30 is provided at the bottom of the first circular chassis 27.

[0032] like Figure 2 , Figure 6 As shown, the negative contact 19 includes a second base 31, a second compression spring 32, and a second contact body 33. A second cylindrical hole 34 for accommodating the second contact body 33 is opened in the second base 31. The second cylindrical hole 34 is opened upward, and a second compression spring 32 is arranged at the bottom of the second cylindrical hole 34. The bottom of the second contact body 33 is located in the second cylindrical hole 34 and on the second compression spring 32. The top of the second contact body 33 is located outside the opening of the second cylindrical hole 34. A second annular baffle 35 is arranged on the opening of the second cylindrical hole 34. A second circular baffle 36 is arranged at the bottom of the second contact body 33. The diameter of the second circular baffle 36 is greater than the inner diameter of the second annular baffle 35.

[0033] A second circular chassis 37 is provided at the bottom of the second base 31, and a second through hole 38 for mounting the second base 31 is opened on the second cover body 15. The second base 31 and the second through hole 38 are interference fit, and the second contact body 33 passes through the second through hole 38 and contacts with the annular copper sheet 10; the second circular chassis 37 is located in the second cover body 15, and the diameter of the second circular chassis 37 is larger than the diameter of the second through hole 38. A second welding groove 39 for connecting to the connecting wire of the lithium battery body 30 is provided at the bottom of the second circular chassis 37.

[0034] When the present invention is used, the protrusion 17 of the charged lithium battery mechanism 5 is screwed into the mounting hole 9 at the bottom of the junction box 4, and the first contact body 23 of the positive contact 18 and the second contact body 33 of the negative contact 19 respectively contact the two annular copper sheets 10, and the first compression spring 22 and the second compression spring 32 respectively push the first contact body 23 and the second contact body 33 upward to ensure that the first contact body 23 and the second contact body 33 are in contact with the annular copper sheet 10, and the connection stability is good, and poor contact is not easy to occur. At the same time, the annular protrusion 20 is embedded in the annular sealing ring 12, effectively sealing the positive contact 18, the negative contact 19, and the annular copper sheet 10, and the sealing effect is good.

[0035] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A removable lithium battery water pump, characterized in that: It comprises a water pump body, a junction box is provided at the bottom of the water pump body, and a lithium battery mechanism detachably connected to the junction box is provided at the bottom of the junction box; The bottom of the junction box is provided with a mounting hole, and the mounting hole is provided with an internal thread; the bottom of the junction box is provided with two annular copper sheets arranged concentrically with the mounting holes, and the annular copper sheets are electrically connected to the water pump body; the bottom of the junction box is provided with a circular mounting groove arranged concentrically with the mounting hole, and a circular sealing ring is arranged in the circular mounting groove, and the diameter of the circular mounting groove is greater than the diameter of the annular copper sheets; The lithium battery mechanism includes a lithium battery placement box, in which a lithium battery body is placed, a protrusion that matches the mounting hole is provided on the top of the lithium battery placement box, and an external thread is provided on the protrusion; a retractable positive contact and a negative contact are provided on the top of the lithium battery placement box, and the positions of the positive contact and the negative contact respectively match the two annular copper sheets arranged at the bottom of the junction box, and the positive contact and the negative contact are electrically connected to the lithium battery body; a circular protrusion that is concentric with the protrusion is provided on the top of the lithium battery placement box, and the circular protrusion is embedded in the circular sealing ring.

2. The detachable lithium battery water pump according to claim 1, characterized in that: The water pump body shell is in a truncated cone shape, a water outlet is arranged on the top of the water pump body, and a water inlet is arranged on the bottom side wall of the water pump body.

3. The detachable lithium battery water pump according to claim 2, characterized in that: The junction box is cylindrical and includes a first box body with an opening at the bottom and a first cover body detachably arranged at the bottom of the first box body. The first cover body is fixed to the bottom of the first box body by bolts, and a second sealing ring is provided at the connection between the first box body and the first cover body.

4. The detachable lithium battery water pump according to claim 3, characterized in that: The lithium battery placement box is cylindrical, including a second box body with an opening on the top and a second cover body detachably arranged on the top of the second box body, the second cover body is fixed to the top of the second box body by bolts, and a third sealing ring is provided at the connection between the second box body and the second cover body.

5. The detachable lithium battery water pump according to claim 4, characterized in that: The central axis of the water pump body, the central axis of the junction box, the central axis of the lithium battery mechanism, the central axis of the mounting hole, the central axis of the protrusion, the central axis of the annular copper sheet, the central axis of the circular mounting groove, the central axis of the circular sealing ring, and the central axis of the circular protrusion all coincide, and the outer diameter of the junction box is equal to the outer diameter of the lithium battery placement box.

6. The detachable lithium battery water pump according to claim 4, characterized in that: The positive contact includes a first base, a first compression spring, and a first contact body. A first cylindrical hole for accommodating the first contact body is opened in the first base, the opening of the first cylindrical hole is arranged upward, a first compression spring is arranged at the bottom of the first cylindrical hole, the bottom of the first contact body is in the first cylindrical hole and on the first compression spring, the top of the first contact body is outside the opening of the first cylindrical hole, a first annular baffle is arranged on the opening of the first cylindrical hole, a first circular baffle is arranged at the bottom of the first contact body, and the diameter of the first circular baffle is greater than the inner diameter of the first circular baffle.

7. The detachable lithium battery water pump according to claim 6, characterized in that: A first circular chassis is provided at the bottom of the first base, a first through hole for installing the first base is opened on the second cover body, the first base and the first through hole are interference fit, the first contact body passes through the first through hole and contacts with the annular copper sheet; the first circular chassis is within the second cover body, the diameter of the first circular chassis is larger than the diameter of the first through hole, and a first welding groove for connecting to the lithium battery connecting wire is provided at the bottom of the first circular chassis.

8. The detachable lithium battery water pump according to claim 4, characterized in that: The negative contact includes a second base, a second compression spring, and a second contact body. A second cylindrical hole for accommodating the second contact body is opened in the second base, the opening of the second cylindrical hole is arranged upward, a second compression spring is arranged at the bottom of the second cylindrical hole, the bottom of the second contact body is in the second cylindrical hole and on the second compression spring, the top of the second contact body is outside the opening of the second cylindrical hole, a second annular baffle is arranged on the opening of the second cylindrical hole, a second circular baffle is arranged at the bottom of the second contact body, and the diameter of the second circular baffle is greater than the inner diameter of the second circular baffle.

9. The detachable lithium battery water pump according to claim 8, characterized in that: A second circular chassis is provided at the bottom of the second base, a second through hole for installing the second base is opened on the second cover body, the second base and the second through hole are interference fit, the second contact body passes through the second through hole and contacts with the annular copper sheet; the second circular chassis is in the second cover body, the diameter of the second circular chassis is larger than the diameter of the second through hole, and a second welding groove for connecting to the lithium battery connecting wire is provided at the bottom of the second circular chassis.

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