CN220705855U - Anti-drop motor water pump - Google Patents
Anti-drop motor water pump Download PDFInfo
- Publication number
- CN220705855U CN220705855U CN202322039730.XU CN202322039730U CN220705855U CN 220705855 U CN220705855 U CN 220705855U CN 202322039730 U CN202322039730 U CN 202322039730U CN 220705855 U CN220705855 U CN 220705855U
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- motor
- water pump
- piston
- bearing
- eccentric wheel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses an anti-drop motor water pump, comprising: the motor assembly comprises a motor body and a motor shaft, wherein the motor assembly comprises a motor body and a motor shaft, the surface of the motor shaft is provided with a knurling part, the water pump assembly comprises a bottom shell, an upper cover, an eccentric wheel, a piston and a water inlet and outlet nozzle, the bottom shell and the upper cover are connected in a clamping manner through screws to form a containing cavity, screws with double inverted structures are arranged inside the piston, peripheral knurling is arranged on the surface of the screws, the eccentric wheel is arranged in the containing cavity, one end of the eccentric wheel, through a connector, is connected with the knurling part of the motor shaft, the piston is connected with the connector in a mutually clamping manner through the screws, the top of the piston is provided with a first umbrella valve, the top of the water inlet and outlet nozzle is provided with a sealing gasket, the sealing gasket of the first umbrella valve and the water inlet and outlet nozzle is provided with a nozzle, and an O-shaped sealing ring is arranged at the joint of the nozzle and the water outlet nozzle.
Description
Technical Field
The utility model relates to the field of water pumps, in particular to an anti-drop motor water pump.
Background
At present, most of working principles of an electric water pump are that a motor is utilized to drive an eccentric wheel in the water pump to do circular motion, so that a mechanical device in the water pump such as a piston does reciprocating motion in a cavity, air in the pump cavity with fixed volume is compressed and stretched to form a vacuum negative pressure state, so that a pressure difference is generated between a water inlet of the water pump and the outside atmospheric pressure, liquid is pumped into the water pump cavity under the action of the pressure difference, and then is discharged from a water outlet, but in the actual use process, the pressure of the pump cavity is gradually increased due to higher rotating speed of the motor, so that the eccentric wheel can slip and even fall off, equipment is damaged, and when liquid is discharged from a water outlet, the pressure in the pump cavity is higher, so that the impact of the liquid and the impact of the air pressure are much higher when the pressure of the outlet is higher than that the pressure of the water outlet is not discharged, and the water outlet is caused to fall off.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a motor water pump capable of preventing an internal device structure from falling off.
The aim of the utility model is realized by the following technical scheme:
an anti-drop motor water pump, comprising: the motor assembly comprises a motor body and a motor shaft, wherein a knurling part is arranged on the surface of the motor shaft, the water pump assembly comprises a bottom shell, an upper cover, an eccentric wheel, a piston and a water inlet and outlet nozzle, the bottom shell and the upper cover are connected with each other through screws in a clamping mode to form a containing cavity, screws with double inverted buckles are arranged inside the piston, peripheral knurls are arranged on the surface of the screws, the eccentric wheel is arranged in the containing cavity, one end of the eccentric wheel is connected with the knurling part of the motor shaft through one end of a connector, the piston is connected with the connector through the screws in a clamping mode, a first umbrella valve is arranged at the top of the piston, a sealing gasket is arranged at the top of the water inlet and outlet nozzle, a nozzle is arranged at the water outlet end of the water inlet and outlet nozzle, and an O-shaped sealing ring is arranged at the joint of the nozzle and the water outlet end.
In one embodiment, a first bearing is disposed at one end of the connector away from the upper cover, and the first bearing is sleeved with the knurled portion of the motor shaft.
In one embodiment, a second bearing is arranged on one side of the eccentric wheel away from the motor body, and the motor shaft is sleeved with the second bearing.
In one embodiment, the motor body is provided with a screw hole, the bottom shell is provided with an alignment hole, and when the motor body is connected with the bottom shell, the screw hole is aligned with the alignment hole.
In one embodiment, the surface of the sealing gasket is provided with a side cover.
In one embodiment, the side cover is connected with the water inlet and outlet nozzle through bolts.
In one embodiment, the first bearing is a ball bearing.
In one embodiment, the second bearing is a copper bearing.
In one embodiment, a second umbrella valve is arranged on the side cover, and the second umbrella valve and the piston form a piston cavity.
In one embodiment, knurling is provided on the first umbrella valve and the second umbrella valve.
Compared with the prior art, the utility model has at least the following advantages:
according to the anti-drop motor water pump, the knurling part is arranged on the motor shaft, so that the eccentric wheel is prevented from slipping and falling off due to the fact that the rotating speed of the motor is too high and the pressure in the cavity is too high, a double back-off structure and peripheral knurling are further arranged on a screw connected with the piston and the connector, the piston is prevented from falling off from the eccentric wheel due to the fact that the pressure is too high, meanwhile, a nozzle is arranged at the water outlet end of the water inlet and outlet nozzle, pressure can be relieved better through expanding the pipe diameter of the water outlet end, and damage to the pipe wall due to the fact that the pressure is too high is prevented.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described.
FIG. 1 is a front view of an anti-drop motor water pump according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a part of a motor assembly according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an exploded view of the embodiment of the present utility model shown in FIG. 1;
FIG. 4 is a schematic view of an exploded structure of another embodiment of the present utility model shown in FIG. 1;
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings.
Referring to fig. 1 to 4, an anti-drop motor water pump 10 includes: the motor assembly 100 and the water pump assembly 200, the motor assembly 100 comprises a motor body 110 and a motor shaft 120, a knurled part 121 is arranged on the surface of the motor shaft 120, the water pump assembly 200 comprises a bottom shell 210, an upper cover 220, an eccentric wheel 230, a piston 240 and a water inlet and outlet nozzle 250, the bottom shell 210 and the upper cover 220 are clamped by screws to form a containing cavity, a screw 241 with a double-back-off structure is arranged in the piston 240, peripheral knurls are arranged on the surface of the screw 241, the eccentric wheel 230 is arranged in the containing cavity, one end of the eccentric wheel 230 is connected with the knurled part 121 of the motor shaft 120 through one end of a connector 260, the piston 240 is clamped with the connector 260 by the screw 241, a first umbrella valve 242 is arranged at the top of the piston 240, a sealing gasket 251 is arranged at the top of the water inlet and outlet nozzle 250, a nozzle 253-1 is arranged at the water outlet end 253 of the water inlet and outlet nozzle 253, preferably, a first bearing 261 is arranged at one end of the connector 260, which is far from the upper cover, and is sleeved with the knurled part 121 of the first motor shaft 261; the eccentric wheel 230 is provided with a second bearing 231 at a side far away from the motor body 110, the motor shaft 120 is sleeved with the second bearing 231, a second umbrella valve 255-1 is arranged on the side cover 255, and the second umbrella valve 255-1 and the piston 240 form a piston cavity.
It should be noted that, the top of the piston 240 is provided with the first umbrella valve 242, the first umbrella valve 242 and the sealing gasket 251 of the water inlet and outlet nozzle 250 form the first piston 240 cavity, the side cover 255 is provided with the second umbrella valve, the second umbrella valve and the piston 240 form the second piston 240 cavity, under the driving of the motor body 110, the eccentric wheel drives the piston 240 to reciprocate along with the rotation of the motor shaft 120, the piston 240 reciprocates and compresses the air in the cavity of the piston 240 to form a negative pressure environment, under the action of atmospheric pressure, the liquid can be pumped from the water inlet end 252 of the water inlet and outlet nozzle 250 and sprayed from the water outlet end 253, in this process, because the rotation speed of the motor body 110 is higher, and the pressure in the cavity can be increased, the knurled part 121 is arranged at the joint of the motor shaft 120 and the eccentric wheel 230 to prevent the eccentric wheel 230 from sliding down, and the first bearing 261 is arranged at one end of the connector 260 far from the upper cover 220; the second bearing 231 is arranged on one side of the eccentric wheel 230 far away from the motor body 110, so that abrasion of devices caused by overlarge rotating speed can be further avoided, the screw 241 with a double-back-off structure is arranged inside the piston 240, peripheral knurling is arranged on the surface of the screw 241, falling off of the piston 240 and the connector 260 can be avoided, the nozzle 253-1 is arranged at the water outlet end 253, pressure can be relieved better, and meanwhile, the O-shaped sealing ring 254 is arranged at the connecting part of the nozzle 253-1 and the water inlet and outlet nozzle 250, and falling off of the nozzle 253-1 is avoided.
Referring to fig. 2, in an embodiment, a screw hole 111 is formed on a motor body 110, an alignment hole 211 is formed on a bottom shell 210, and when the motor body 110 is connected to the bottom shell 210, the screw hole 111 is aligned with the alignment hole 211, preferably, the screw hole 111 is formed on the motor body 110 and the alignment hole 211 is formed on the bottom shell 210, so that the motor body 110 and the bottom shell can be stably connected through screws, and the motor body 110 is ensured not to fall off during operation, so as to prevent personnel from being damaged during production.
Further, as shown in fig. 4, in order to improve the service life of the sealing pad 251, a side cover 255 is further provided on the surface of the sealing pad 251.
Still further, as shown in fig. 4, the side cover 255 is connected to the water inlet/outlet nozzle by a bolt, and it is preferable that the side cover 255 is prevented from falling off by the bolt fastening.
Specifically, the first bearing 261 is a ball bearing, and it should be noted that the first bearing 261 is connected to the motor shaft, and needs to work for a long time, so that the service life of the first bearing 261 can be improved by using the ball bearing.
Specifically, the second bearing 231 is a copper bearing, and it should be noted that the second bearing 231 has a relatively high fixing effect, and the copper member has a relatively high wear resistance and a relatively long service life, so that frequent replacement of the second bearing 231 is avoided.
As shown in fig. 3 and 4, the first umbrella valve 242 and the second umbrella valve 255-1 are provided with knurls, and further, damage to the umbrella valves due to excessive pressure can be avoided by providing the knurls on the first umbrella valve 242 and the second umbrella valve 255-1.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model, which are within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. An anti-drop motor water pump, characterized by comprising:
the motor assembly comprises a motor body and a motor shaft, and a knurling part is arranged on the surface of the motor shaft; and
The water pump assembly comprises a bottom shell, an upper cover, an eccentric wheel, a piston and a water inlet and outlet nozzle, wherein the bottom shell and the upper cover are connected with each other in a clamping mode through screws to form a containing cavity, screws with double-back-off structures are arranged inside the piston, peripheral knurls are arranged on the surface of the screws, the eccentric wheel is arranged in the containing cavity, one end of the eccentric wheel, which is connected with a knurled part of a motor shaft, of the eccentric wheel is connected with the connector in a clamping mode through the screws, a first umbrella valve is arranged at the top of the piston, a sealing gasket is arranged at the top of the water inlet and outlet nozzle, a piston cavity is formed by the first umbrella valve and the sealing gasket of the water inlet and outlet nozzle, and an O-shaped sealing ring is arranged at the joint of the nozzle and the water outlet end.
2. The anti-drop motor water pump of claim 1, wherein a first bearing is disposed at an end of the connector away from the upper cover, the first bearing being in socket engagement with a knurled portion of the motor shaft.
3. The anti-drop motor water pump of claim 1, wherein a second bearing is disposed on a side of the eccentric wheel away from the motor body, and the motor shaft is sleeved with the second bearing.
4. The anti-drop motor water pump of claim 1, wherein the motor body is provided with a screw hole, the bottom shell is provided with an alignment hole, and the screw hole is aligned with the alignment hole when the motor body is connected with the bottom shell.
5. The anti-drop motor water pump of claim 1, wherein the surface of the gasket is provided with a side cover.
6. The anti-drop motor water pump of claim 5, wherein the side cover is connected to the water inlet and outlet nozzle by bolts.
7. The anti-drop motor water pump of claim 2, wherein the first bearing is a ball bearing.
8. The anti-drop motor water pump of claim 3, wherein the second bearing is a copper bearing.
9. The anti-drop motor water pump of claim 5, wherein a second umbrella valve is disposed on the side cover, the second umbrella valve and the piston forming a piston cavity.
10. The anti-drop motor water pump of claim 1, wherein the first umbrella valve and the second umbrella valve are provided with knurls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322039730.XU CN220705855U (en) | 2023-07-31 | 2023-07-31 | Anti-drop motor water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322039730.XU CN220705855U (en) | 2023-07-31 | 2023-07-31 | Anti-drop motor water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220705855U true CN220705855U (en) | 2024-04-02 |
Family
ID=90453139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322039730.XU Active CN220705855U (en) | 2023-07-31 | 2023-07-31 | Anti-drop motor water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220705855U (en) |
-
2023
- 2023-07-31 CN CN202322039730.XU patent/CN220705855U/en active Active
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