Integrally sealed miniature water pump

Abstract

The utility model relates to the field of miniature water pumps, and discloses an integrally sealed miniature water pump which comprises a shell, a pump body and a driving mechanism, the pump body comprises a top cover, the top cover is further provided with a water inlet and a water outlet, the driving mechanism drives the pump body to work, and the pump body and the driving mechanism are sequentially sleeved with the shell in the direction from the top cover to a motor. And gaps among the shell, the pump body and the driving mechanism are filled with glue for glue sealing, so that the sealing performance of the internal structure of the shell is ensured, liquid is prevented from flowing out of the gaps, good sealing performance can still be ensured after long-time use, and the maintenance frequency is reduced.

Description

Technical Field

[0001] The present application relates to the field of micro water pumps, and in particular to an integrated sealed micro water pump. Background Art

[0002] As one of the core components of water dispensers and water purifiers, the normal operation of the micro water pump plays a vital role in the performance and service life of the water dispensers and water purifiers.

[0003] As attached Figure 8 As shown, the micro water pump includes a pump body 2 and a drive mechanism 3. The drive mechanism uses a motor 33 as a driving force to drive the pump body 2 to operate. After long-term use, the water pump's sealing gasket 23 may age, deform, or be damaged, causing water to seep through the gaps on the outer surface of the pump body 2 and come into contact with the drive mechanism 3. In particular, the lubricant in the drive mechanism 3 or particles from wear and tear can be transferred and contaminate the water in the pump body 2, affecting the water purification and filtration effects, and also affecting the health of the user. Utility Model Content

[0004] In order to ensure the sealing of the water pump after long-term use, a micro water pump with an integrated seal is provided.

[0005] The above-mentioned application objectives of this application are achieved through the following technical solutions:

[0006] An integrated sealed micro water pump includes a shell, a pump body and a driving mechanism. The pump body includes a top cover, which is also provided with a water inlet and a water outlet. The driving mechanism drives the pump body to work. The shell inserts the pump body and the driving mechanism in sequence from the top cover toward the motor, and the gaps between the shell, the pump body and the driving mechanism are sealed with glue.

[0007] By adopting the above technical solution, the gaps between the outer shell, the pump body and the drive mechanism are filled with glue and sealed, which isolates the liquid from flowing out of the gaps. After long-term use, the pump body can still maintain good sealing, avoiding water contamination, and ensuring the sealing of the internal structure of the outer shell, reducing the number of maintenance times.

[0008] Optionally, the pump body further includes a valve plate, a valve sheet and an umbrella shank, the valve plate being provided with a water suction port and a water pressure port, a water inlet cavity and a water outlet cavity being provided between the valve plate and the top cover, the water inlet cavity being connected with the water suction port, and the water outlet cavity being connected with the water pressure port, the valve sheet being located in the water outlet cavity and being attached to the upper end of the water pressure port, the umbrella shank being provided at the water suction port and the umbrella end of the umbrella shank being attached to the lower end of the water suction port.

[0009] By adopting the above technical solution, the valve plate prevents the liquid in the water outlet chamber from flowing back to the leather bowl, and the umbrella tack prevents the liquid in the leather bowl from flowing back to the water inlet chamber, both of which act as one-way valves to prevent liquid backflow.

[0010] Optionally, the driving mechanism includes a bottom shell and a motor, the bottom shell and the motor are connected by fastening screws, and the top cover and the bottom shell are connected by bolts.

[0011] By adopting the above technical solution, the valve plate mechanism and the swing mechanism are connected by bolts, the motor drives the swing mechanism to move, and the swing mechanism drives the valve plate mechanism to work.

[0012] Optionally, a convex ring is provided at the lower end of the top cover, which is located in the water outlet cavity and is interconnected with the water outlet. A plurality of first bosses are provided on the surface of the valve plate, and one end of the convex ring abuts against the first boss on the valve plate.

[0013] By adopting the above technical solution, the convex ring at the lower end of the top cover abuts against the first convex platform of the valve plate, preventing the water pressure in the leather bowl from being too high and pushing the valve plate out of the water pressure port, causing the liquid to flow back into the leather bowl.

[0014] Optionally, the pump body also includes a sealing gasket, which is fixed between the valve plate and the top cover. The sealing gasket includes a sealing outer ring and a sealing inner ring. A plurality of second bosses are also provided on the surface of the valve plate, and a first groove is provided on the sealing outer ring for the second bosses to be inserted one by one.

[0015] By adopting the above technical solution, a sealing gasket is provided, which improves the sealing effect of the connection between the top cover and the valve plate; the second boss is inserted into the first groove on the sealing gasket, which limits the movement of the sealing gasket and prevents liquid from flowing out of the gap into the shell.

[0016] Optionally, a limiting column is provided at the lower end of the bottom shell, a limiting hole is opened on the motor, and the limiting column fits and is inserted into the limiting hole.

[0017] By adopting the above technical solution, when the driving assembly moves, the vibration of the valve plate mechanism driven by the bottom shell is reduced.

[0018] Optionally, the leather cup further includes a leather cup gasket and a bowl body, the bowl body is connected to the leather cup gasket, the pump body further includes a leather cup bracket, a plurality of third bosses are formed on the leather cup bracket, and a second groove is formed on the leather cup gasket for the third bosses to be inserted one by one.

[0019] By adopting the above technical solution, when the leather cup swings, the third boss limits the movement of the leather cup gasket, thereby preventing the liquid from flowing out of the gap from the leather cup into the shell.

[0020] Optionally, the shell of the housing is further provided with a wire clip for clipping the wires connected to the motor to the housing.

[0021] By adopting the above technical solution, the placement of motor wires is facilitated and convenience is improved.

[0022] In summary, this application has at least the following beneficial effects:

[0023] 1. After a water pump has been used for a long time, its sealing gasket may age, deform or be damaged, causing water to flow out of the pump from the gaps. The entire water pump needs to be disassembled for inspection and replacement of the sealing gasket. Nowadays, the entire outer casing is put on the outside of the pump body and the drive mechanism, and then the outer casing, pump body and drive mechanism are sealed with sealant, which improves the sealing effect of the water pump and reduces the number of maintenance times. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the explosion of the micro water pump with integrated seal;

[0025] Figure 2 This is a schematic diagram of the explosion of the pump body;

[0026] Figure 3 Schematic diagram of the structure of the valve plate;

[0027] Figure 4 It is a partial cross-sectional view of the pump body;

[0028] Figure 5 Schematic diagram of the explosion of the driving mechanism;

[0029] Figure 6 Schematic diagram of the structure of the bottom shell;

[0030] Figure 7 This is a cross-sectional view of the glue filling of the integrated sealed micro water pump;

[0031] Figure 8 Schematic diagram of the structure of a micro water pump.

[0032] Figure 1: Casing; 11: Wire buckle; 2: Pump body; 21: Top cover; 211: Water inlet; 212: Water outlet; 213: Raised ring; 22: Valve plate; 221: Water inlet chamber; 222: Water outlet chamber; 223: Annular partition wall; 224: Second boss; 225: Water suction port; 226: Water pressure port; 23: Sealing gasket; 231: Sealing outer ring; 2311: First groove; 232: Sealing inner ring; 24: Valve plate; 241: First boss; 25: Umbrella; 26: Swing Frame; 261, sleeve hole; 27, swing shaft; 28, leather cup; 281, bowl body; 282, leather cup gasket; 2821, second groove; 283, clamping column; 29, leather cup bracket; 291, positioning hole; 292, third boss; 3, driving mechanism; 31, bottom shell; 311, fastening screw; 312, fixing hole; 313, limiting column; 32, eccentric wheel; 321, driving hole; 322, inclined hole; 33, motor; 331, fixing threaded hole; 332, limiting hole; 4, sealant. DETAILED DESCRIPTION

[0033] The following is a further detailed description with reference to the accompanying drawings:

[0034] As attached Figure 1 As shown, the integrated sealed micro water pump includes a housing 1, a pump body 2 and a driving mechanism 3.

[0035] As attached Figure 2 and attached Figure 3 As shown, the pump body 2 includes a top cover 21, a valve plate 22, a sealing gasket 23, a valve disc 24, an umbrella tack 25, a swing frame 26, a swing shaft 27, a leather cup 28 and a leather cup support 29.

[0036] The top cover 21 and the valve plate 22 fit together and snap together. A water inlet chamber 221 and a water outlet chamber 222 are provided between the valve plate 22 and the top cover 21. At the same time, an annular partition wall 223 is provided on the valve plate 22 in the direction toward the top cover 21 to separate the water inlet chamber 221 and the water outlet chamber 222. A water inlet 211 and a water outlet 212 are also provided at the upper end of the top cover 21. The water inlet 211 is communicated with the water inlet chamber 221, and the water outlet 212 is communicated with the water outlet chamber 222.

[0037] A sealing gasket 23 is further provided between the valve plate 22 and the top cover 21 . The sealing gasket 23 includes a sealing outer ring 231 and a sealing inner ring 232 .

[0038] First, the sealing outer ring 232 is embedded in the side of the valve plate 22 facing the top cover 21 , and the sealing outer ring 232 surrounds the water inlet cavity 221 .

[0039] A plurality of second bosses 224 are formed on the surface of the valve plate 22 . A first groove 2311 is formed on the sealing outer ring 231 for the second bosses 224 to be inserted into. The second bosses 224 correspond to the first grooves 2311 one by one.

[0040] The valve plate 22 is provided with a water suction port 225 and a water pressure port 226. The water inlet chamber 221 is connected to the water suction port 225, and the water outlet chamber 222 is connected to the water pressure port 226. The umbrella 25 is provided at the water suction port 225, and the umbrella end of the umbrella 25 is attached to the lower end of the water suction port 225. The umbrella 25 allows the liquid to enter the interior of the leather cup 28 only from the water inlet chamber 221, and prevents the liquid from flowing back from the interior of the leather cup 28 into the water inlet chamber 221.

[0041] The valve plate 24 is located in the water outlet cavity 222 and fits the upper end of the water pressure port 226 . The valve plate 24 allows liquid to enter the water outlet cavity 222 only from the inside of the leather cup 28 , but prevents liquid from flowing back into the leather cup 28 from the water outlet cavity 222 .

[0042] As attached Figure 2 and attached Figure 4As shown, a plurality of first bosses 241 are provided on the valve disc 24, and a convex ring 213 is provided on the side of the top cover 21 opposite to the water inlet 211. The convex ring 213 is located in the water outlet cavity 222 and is interconnected with the water outlet 212. One end of the convex ring 213 abuts against the first boss 241 on the valve disc 24 to prevent the water pressure in the leather cup 28 from pushing the valve disc 24 out.

[0043] The leather cup 28 further includes a bowl body 281 , a leather cup gasket 282 and a clamping column 283 .

[0044] There are multiple bowl bodies 281, which are recorded as three here. The three bowl bodies 281 are arranged in a circular array. The three bowl bodies 281 are interconnected through leather bowl gaskets 282. Three positioning holes 291 are also opened on the leather bowl bracket 29, and the bowl bodies 281 pass through the positioning holes 291.

[0045] The leather cup bracket 29 is provided with a plurality of third bosses 292 , and the leather cup gasket 282 is further provided with a second groove 2821 for the third bosses 292 to be inserted into. The third bosses 292 correspond to the second grooves 2821 one to one, thus limiting the movement of the leather cup gasket 282 .

[0046] The swing frame 26 is in the shape of a tripod and has three holes 261 formed thereon. The swing frame 26 is attached to the bottom of the bowl body 281 , and the posts 283 of the leather bowl 28 are inserted into the holes 261 . The bottom of the swing frame 26 is fixedly connected to the swing shaft 27 .

[0047] As attached Figure 5 and attached Figure 6 As shown, the driving mechanism 3 includes a bottom shell 31 , an eccentric wheel 32 and a motor 33 .

[0048] The eccentric wheel 32 has a driving hole 321 and an oblique hole 322 . The driving hole 321 is for inserting the driving shaft of the motor 33 . The oblique hole 322 is located on the side of the driving hole 321 . There is an angle between the axes of the driving hole 321 and the oblique hole 322 .

[0049] The bottom shell 31 includes two fastening screws 311. Two fixing holes 312 are provided at the lower end of the bottom shell 31. Two fixing threaded holes 331 are provided on the motor 33. The two fastening screws 311 pass through the fixing holes 312 to threadably connect the bottom shell 31 to the motor 33. Two limiting holes 332 are also provided on the motor 33. A limiting column 313 is also installed at the lower end of the bottom shell 31. The limiting column 313 fits and is inserted into a limiting hole 332, thereby reducing the vibration that occurs when the driving mechanism 3 drives the pump body 2 to move.

[0050] As attached Figure 1 and attached Figure 7As shown, the pump body 2 is positioned above the drive mechanism 3. The top cover 21 and bottom shell 31 are connected by bolts. The swing shaft 27 is coaxially inserted into the inclined hole 322 and is rotationally connected thereto. The drive mechanism 3 is driven by the motor 33, which drives the eccentric wheel 32, which in turn drives the pump body 2 via the swing shaft 27. The housing 1 is sequentially inserted within the pump body 2 and drive mechanism 3 from the top cover 21 toward the motor 33. The gaps between the housing 1, the pump body 2, and the drive mechanism 3 are sealed with sealant 4.

[0051] The outer shell 1 is cylindrical in shape, and the pump body 2 and the driving mechanism 3 can be fit into it. The outer shell 1 also includes a wire clip 11, which is located on the side of the outer shell 1 to fix the wires connected to the bottom of the motor 33.

[0052] The working principle of this embodiment is as follows:

[0053] When the water pump is working, water flows into the water inlet chamber 221 from the water inlet 211, and the motor 33 drives the eccentric wheel 32 to rotate through the drive shaft, and the eccentric wheel 32 drives the swing frame 26 to rotate through the swing shaft 27. The leather cup 28 is compressed and stretched back and forth by the swing frame 26, so that the air inside the leather cup 28 forms a negative pressure. Since the air pressure inside the leather cup 28 is lower than the external atmospheric pressure, a pressure difference is formed. Under the action of the pressure difference, the water in the water inlet chamber 221 is sucked into the leather cup 28 from the water suction port 225 through the umbrella 25 installed on the valve plate 22. By compressing the leather cup 28, the water is pressed into the water outlet chamber 222 from the water pressure port 226 through the valve plate 24 installed on the valve plate 22. The water outlet chamber 222 is connected to the water outlet 212, and then the water flows out from the water outlet 212.

[0054] However, after long-term use, the sealing gasket 23 of the water pump may age, deform or be damaged, causing water to seep out from the gap and come into contact with the outer surface of the pump body 2 and the drive mechanism 3. In particular, the lubricating fluid in the drive mechanism 3 or particles caused by work wear may be transferred and contaminate the water in the pump body 2.

[0055] Therefore, the gaps between the housing 1 and the pump body 2 and the drive mechanism 3 are filled with sealant 4 to ensure good sealing of the pump body 2, prevent water from being contaminated, and ensure the sealing of the internal structure of the housing 1, reducing the number of maintenance times.

[0056] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of protection required by this application, they are protected by patent law.

Claims

1. An integrated sealed micro water pump, characterized in that: The invention comprises a housing (1), a pump body (2) and a driving mechanism (3), wherein the pump body (2) comprises a top cover (21), and the top cover (21) is further provided with a water inlet (211) and a water outlet (212). The driving mechanism (3) drives the pump body (2) to work, and the housing (1) sequentially inserts the pump body (2) and the driving mechanism (3) from the top cover (21) toward the motor (33), and the gaps between the housing (1), the pump body (2) and the driving mechanism (3) are sealed with glue.

2. The integrated sealed micro water pump according to claim 1, characterized in that: The pump body (2) further comprises a valve plate (22), a valve disc (24) and an umbrella (25). The valve plate (22) is provided with a water suction port (225) and a water pressure port (226). A water inlet cavity (221) and a water outlet cavity (222) are provided between the valve plate (22) and the top cover (21). The water inlet cavity (221) is communicated with the water suction port (225), and the water outlet cavity (222) is communicated with the water pressure port (226). The valve plate (24) is located in the water outlet cavity (222) and is attached to the upper end of the water pressure port (226). The umbrella (25) is provided through the water suction port (225), and the umbrella end of the umbrella (25) is attached to the lower end of the water suction port (225).

3. The integrated sealed micro water pump according to claim 1, characterized in that: The driving mechanism (3) comprises a bottom shell (31) and a motor (33); the bottom shell (31) and the motor (33) are connected via fastening screws (311); and the top cover (21) and the bottom shell (31) are connected via bolts.

4. The integrated sealed micro water pump according to claim 2, characterized in that: A convex ring (213) is provided at the lower end of the top cover (21). The convex ring (213) is located in the water outlet cavity (222) and is communicated with the water outlet (212). A plurality of first bosses (241) are provided on the surface of the valve plate (24). One end of the convex ring (213) abuts against the first boss (241) on the valve plate (24).

5. The integrated sealed micro water pump according to claim 4, characterized in that: The pump body (2) further comprises a sealing gasket (23), which is fixed between the valve plate (22) and the top cover (21). The sealing gasket (23) comprises a sealing outer ring (231) and a sealing inner ring (232). A plurality of second bosses (224) are formed on the surface of the valve plate (22), and a first groove (2311) is formed on the sealing outer ring (231) for the second bosses (224) to be inserted into one by one.

6. The integrated sealed micro water pump according to claim 3, characterized in that: A limiting column (313) is provided at the lower end of the bottom shell (31), a limiting hole (332) is provided on the motor (33), and the limiting column (313) is fitted and inserted into the limiting hole (332).

7. The integrated sealed micro water pump according to claim 5, characterized in that: The pump body (2) includes a leather cup (28), the leather cup (28) further includes a leather cup gasket (282) and a bowl body (281), the bowl body (281) is connected to the leather cup gasket (282), and the pump body (2) further includes a leather cup bracket (29), a plurality of third bosses (292) are formed on the leather cup bracket (29), and a second groove (2821) for inserting the third bosses (292) is formed on the leather cup gasket (282), and the third bosses (292) and the second grooves (2821) correspond one to one.

8. The integrated sealed micro water pump according to claim 1, characterized in that: The shell of the housing (1) is also provided with a wire clip (11) for clipping the wire connected to the motor (33) onto the housing (1).

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